Abstract

A method includes determining a specified demand as a function of time of thermal energy from a heat exchanger of a heat pump. The heat pump is configured to transfer thermal energy to the heat exchanger from a geothermal working fluid circulating in a closed-loop geothermal well. The closed-loop geothermal well includes a first surface wellbore extending from a terranean surface to a geothermal subterranean zone, a second surface wellbore extending from the terranean surface to the geothermal subterranean zone, and plurality of connecting wellbores connecting the first surface wellbore to the second surface wellbore The heat output from the heat exchanger is controlled to meet a specified demand by adjusting at least one of a flow rate or inlet temperature of the geothermal working fluid in the closed-loop geothermal well.

IPC Classes  ?

• F24T 50/00 - Geothermal systems
• F24T 10/13 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes

Abstract

A geothermal reactor well system includes a closed-loop well coupled to one or more sources of reactants. The closed-loop well includes a first surface wellbore extending from a terranean surface to a geothermal subterranean zone and a second surface wellbore extending from the surface to the zone. A plurality of connecting wellbores connect the first surface wellbore to the second surface wellbore. At least a portion of the connecting wellbores are sealed against communication of fluids with the surrounding geothermal subterranean zone. A carrier fluid is disposed within the closed-loop well. The closed-loop well is configured so heat energy from the geothermal subterranean zone and/or reaction of reactants in the closed-loop well drives the fluids in the closed-loop well to circulate by thermosiphon and to thereby carry the reactants through the closed-loop well for the reaction and carry a product of the reaction through the closed-loop well for collection.

IPC Classes  ?

• F24T 50/00 - Geothermal systems
• F24T 10/13 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes

Abstract

A method for drilling a geothermal well in a subterranean zone includes drilling, with a drill string, a wellbore of the geothermal well in the subterranean zone. An inherent temperature of the rock adjacent a rock face at a downhole end of the wellbore is at least 250 degrees Celsius. While drilling, a drilling fluid is flowed at a temperature at the rock face such that a difference between the inherent temperature of the rock adjacent the rock face and the temperature of the drilling fluid at the rock face is at least 100 degrees Celsius.

IPC Classes  ?

• E21B 7/18 - Drilling by liquid or gas jets, with or without entrained pellets
• E21B 3/02 - Surface drives for rotary drilling
• E21B 7/04 - Directional drilling
• E21B 7/14 - Drilling by use of heat, e.g. flame drilling
• E21B 17/00 - Drilling rods or pipesFlexible drill stringsKelliesDrill collarsSucker rodsCasingsTubings
• E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
• E21B 43/26 - Methods for stimulating production by forming crevices or fractures

Abstract

A method includes circulating a heat transfer working fluid in a closed loop between a geothermal well residing in a subterranean zone and at least one of a heat exchanger or a turbine. The well is substantially sealed to limit fluid loss of the working fluid into the subterranean zone. While circulating the working fluid, at least one of a viscosity of the working fluid or a pressure differential between the working fluid and the subterranean zone is controlled in relation to a flow of fluid between the subterranean zone and the well.

IPC Classes  ?

• F24T 10/15 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubesGeothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes assembled with connectors or with return headers
• F24T 10/00 - Geothermal collectors
• F24T 50/00 - Geothermal systems

Goods & Services

(1) Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production (2) Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production (3) Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy (4) Licensing of intellectual property

Abstract

A specified variance of thermal resistance of a drill string along its length is selected such that, as the wellbore is drilled by the drill string in a subterranean zone towards and then reaches a target measured depth, a temperature of the drilling fluid at a bottom-hole assembly to which the drilling fluid is conveyed by the drill string neither substantially exceeds nor substantially falls below a target operational temperature range. The wellbore is drilled with the drill string constructed, as the wellbore is being drilled, to have the specified variance of thermal resistance along its length.

IPC Classes  ?

• E21B 7/00 - Special methods or apparatus for drilling
• E21B 17/00 - Drilling rods or pipesFlexible drill stringsKelliesDrill collarsSucker rodsCasingsTubings
• F24T 10/00 - Geothermal collectors
• F24T 50/00 - Geothermal systems

Abstract

A drilling fluid is flowed through a bore of a first coiled tubing to a bottom hole assembly (BHA) comprising a drill bit and into a wellbore being drilled. A cooling fluid is flowed toward the drill bit through a second coiled tubing residing in the wellbore with the first tubing. The cooling fluid has different thermal characteristics than the drilling fluid. In certain instances, the first and second tubings are bundled. In certain instances, the drilling fluid is oil based drilling fluid and the cooling fluid is water based drilling fluid.

IPC Classes  ?

• E21B 21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
• E21B 17/20 - Flexible or articulated drilling pipes
• E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
• F24T 10/00 - Geothermal collectors

Abstract

In a drilling string comprising a component, an arrangement of insulated drill pipe among other drill pipe in the drilling string is configured based on a performance/temperature relationship of the component. A characteristic of a flow of fluid through the drilling string is configured based on the performance/temperature relationship of the component while the drilling string is in a wellbore and the drilling string is being operated to drill a wellbore.

IPC Classes  ?

• E21B 21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
• E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
• F24T 10/00 - Geothermal collectors

Abstract

In a drilling string comprising drill bit and a ranging tool, an arrangement of insulated drill pipe among other drill pipe in the drilling string is configured based on a performance/temperature relationship of the ranging tool. A characteristic of a flow of fluid through the drilling string is configured based on the performance/temperature relationship of the ranging tool while the drilling string is in a wellbore and the ranging tool is being operated to determine the location of the wellbore relative to another wellbore.

IPC Classes  ?

• E21B 47/017 - Protecting measuring instruments
• E21B 21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
• E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones

Abstract

Drilling in a wellbore in a subterranean zone with a drilling string including a coiled tubing. The coiled tubing having a bulk, length normalized radial thermal resistance to heat transfer through a wall of the tubing of at least 0.008 m K/W. Flowing a drilling fluid through the drilling string while drilling, where a ratio of a drilling string bulk density to a drilling fluid bulk density is 2 or less.

IPC Classes  ?

• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
• E21B 7/00 - Special methods or apparatus for drilling
• E21B 17/00 - Drilling rods or pipesFlexible drill stringsKelliesDrill collarsSucker rodsCasingsTubings
• E21B 21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure

Abstract

A wellbore is drilled in a subterranean zone with a drill bit of a drilling string. The drilling string includes tubing and a fluid separator uphole of the drill bit. While drilling, a drilling fluid is flowed through an interior of the drilling string and through the fluid separator. The fluid separator separates, from the drilling fluid, a fluid stream having a higher water-to-oil ratio than a remainder of the drilling fluidUphole of the drill bit, the fluid stream is diverted from the fluid separator to an annulus around the exterior of the drilling string based on a specified temperature of a drilling string component while the remainder of the drilling fluid flows from the fluid separator to the drill bit.

IPC Classes  ?

• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
• E21B 7/00 - Special methods or apparatus for drilling
• E21B 17/00 - Drilling rods or pipesFlexible drill stringsKelliesDrill collarsSucker rodsCasingsTubings
• E21B 21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure

Abstract

A method performed on a wellbore system with a first surface wellbore extending from a terranean surface to a subterranean zone, a second surface wellbore extending from the terranean surface to the subterranean zone and a plurality of connecting wellbores in the subterranean zone each connecting the first and second surface wellbores. A lateral wellbore is drilled using a drill string extending through the first surface wellbore. While drilling, flow of drilling fluid from the drill string is sealed against returning towards the first surface wellbore through the connecting wellbores.

IPC Classes  ?

• E21B 7/00 - Special methods or apparatus for drilling
• E21B 7/04 - Directional drilling
• E21B 21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
• E21B 33/10 - Sealing or packing boreholes or wells in the borehole
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• F24T 50/00 - Geothermal systems

Abstract

Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling to form an impervious layer at the wellbore/formation interface. The techniques may be chemical, thermal, mechanical, biological and are fully intended to irreversibly damage the formation in terms of the permeability thereof. With the permeability negated, the wellbore may be used to create a closed loop surface to surface geothermal well operable in the absence of well casing for maximizing thermal transfer to a circulating working fluid. Formulations for the working and drilling fluids are disclosed.

IPC Classes  ?

• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• C09K 8/08 - Clay-free compositions containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
• C09K 8/40 - Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses
• C09K 8/42 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells
• C09K 8/46 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• F24T 10/00 - Geothermal collectors
• F24T 10/10 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
• F24T 10/13 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
• F24T 50/00 - Geothermal systems

Abstract

Closed loop wellbore configurations with unrestricted geometry for accommodating irregular or challenging thermal gradients within a thermally productive formation are disclosed. A working fluid is utilized in the loop for extraction of thermal energy there from. The loop and the unrestricted geometry are achieved using magnetic ranging of independent drilling operations which intersect from an inlet well and outlet well to form an interconnecting segment. In conjunction with the directional drilling, conditioning operations are incorporated to condition the rock face, cool the entire system, activate the wellbore for treatment to optimize thermal transfer inter alia. The significant degree of freedom in wellbore configuration is further optimized by the absence of mechanical impediments such as casing or liners in the heat transfer areas.

IPC Classes  ?

• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• E21B 7/04 - Directional drilling
• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• E21B 47/0228 - Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor

Goods & Services

Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the fields of geothermal wells and geothermal energy production Clean energy production from geothermal obtained by repurposing existing oil and gas wells to generate such energy; technical consulting services and providing technology information in the field of geothermal energy production Repurposing existing oil and gas wells to generate geothermal energy, namely construction of oil and gas wells, and of geothermal wells; drilling of oil, gas, and geothermal wells; repurposing existing oil and gas wells to generate geothermal energy all in the nature of drilling of oil, gas and geothermal wells; repurposing existing oil and gas wells to generate geothermal energy, namely, construction of geothermal power plants for use in producing geothermal energy; construction project management services in the field of construction of geothermal wells and geothermal energy production Conducting environmental feasibility studies, research, scientific and environmental testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology products for others; provision of geothermal energy production technology all in the nature of new product design in the field of geothermal energy; geothermal engineering services; product design consulting services for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analytical services in the field of exploitation and exploration of geothermal energy Licensing of intellectual property

Goods & Services

Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the fields of geothermal wells and geothermal energy production Clean energy production from geothermal obtained by repurposing existing oil and gas wells to generate such energy; technical consulting services and providing technology information in the field of geothermal energy production Repurposing existing oil and gas wells to generate geothermal energy, namely construction of oil and gas wells, and of geothermal wells; drilling of oil, gas, and geothermal wells; repurposing existing oil and gas wells to generate geothermal energy all in the nature of drilling of oil, gas and geothermal wells; repurposing existing oil and gas wells to generate geothermal energy, namely, construction of geothermal power plants for use in producing geothermal energy; construction project management services in the field of construction of geothermal wells and geothermal energy production Conducting environmental feasibility studies, research, scientific and environmental testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology products for others; provision of geothermal energy production technology all in the nature of new product design in the field of geothermal energy; geothermal engineering services; product design consulting services for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analytical services in the field of exploitation and exploration of geothermal energy Licensing of intellectual property

Abstract

A method includes causing a first portion of a heat-transfer working fluid to flow from a first lateral wellbore of a closed-loop geothermal well to a second lateral wellbore of the closed-loop geothermal well via a wellbore intersection. The first lateral wellbore and the second lateral wellbore reside in a target subterranean zone. A second portion of the heat-transfer working fluid is caused to flow through the Earth of the target subterranean zone from the first lateral wellbore to the second lateral wellbore.

IPC Classes  ?

• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• E21B 43/26 - Methods for stimulating production by forming crevices or fractures
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells

Abstract

Methods and system for geothermal energy harvesting using both conductive and convective heat transfer are provided. A geothermal well is provided with inlet and outlet wellbores and an interconnecting wellbore therebetween, the interconnecting wellbore fluidly connected to a plurality of fluid conduits, such as fractures. The interface of the wellbore and fractures with the surrounding earth may be impermeably sealed with a sealant. A heat transfer fluid is circulated throughout the system to extract thermal energy from the earth by conduction, as well as by convection. By providing the plurality of fluid conduits and by utilizing convective as well as conductive heat transfer, the rate of energy extraction may be increased.

IPC Classes  ?

• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• F24T 50/00 - Geothermal systems

Goods & Services

(1) Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production (2) Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production (3) Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy (4) Licensing of intellectual property

Goods & Services

(1) Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production (2) Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production (3) Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy (4) Licensing of intellectual property

Goods & Services

Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production Repurposing existing oil and gas wells to generate geothermal energy, namely, construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production Technical consulting services and providing technology information in connection with geothermal energy production; conducting scientific environmental feasibility studies, scientific research, environmental testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of technical information in the fields of geothermal energy production technology and geothermal energy production methods; product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy Licensing of intellectual property

Goods & Services

Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production Repurposing existing oil and gas wells to generate geothermal energy, namely, construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production Technical consulting services and providing technology information in connection with geothermal energy production; conducting scientific environmental feasibility studies, scientific research, environmental testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of technical information in the fields of geothermal energy production technology and geothermal energy production methods; product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy Licensing of intellectual property

Abstract

A method includes flowing, in a closed loop geothermal well residing in a target subterranean zone, a first heat transfer working fluid and flowing, in the geothermal well, a second working fluid from the surface inlet to the downhole location of the geothermal well. The second working fluid resides upstream of the first heat transfer working fluid. The second working fluid includes a fluid density greater than a fluid density of the first heat transfer working fluid. The method also includes circulating, in the geothermal well, the second working fluid pushing, with the second working fluid, the first heat transfer working fluid toward a surface outlet of the geothermal well. The method also includes collecting energy from the mobilized first heat transfer working fluid received at the surface outlet of the geothermal well.

IPC Classes  ?

• F24T 10/10 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
• F24T 10/40 - Geothermal collectors operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes
• F24T 50/00 - Geothermal systems

Goods & Services

(1) Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production (2) Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production (3) Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy (4) Licensing of intellectual property

Goods & Services

(1) Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production (2) Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production (3) Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy (4) Licensing of intellectual property

Abstract

A method includes circulating a heat transfer working fluid in a closed loop between a geothermal well residing in a subterranean zone and at least one of a heat exchanger or a turbine. The well is substantially sealed to limit fluid loss of the working fluid into the subterranean zone. While circulating the working fluid, at least one of a viscosity of the working fluid or a pressure differential between the working fluid and the subterranean zone is controlled in relation to a flow of fluid between the subterranean zone and the well.

IPC Classes  ?

• F24T 10/10 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground

Abstract

A method includes circulating a heat transfer working fluid in a closed loop between a geothermal well residing in a subterranean zone and at least one of a heat exchanger or a turbine. The well is substantially sealed to limit fluid loss of the working fluid into the subterranean zone. While circulating the working fluid, at least one of a viscosity of the working fluid or a pressure differential between the working fluid and the subterranean zone is controlled in relation to a flow of fluid between the subterranean zone and the well.

IPC Classes  ?

• F24T 10/10 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground

Abstract

Methods for providing on demand power to an end user in a variety of embodiments are disclosed. Closed loop thermal recovery arrangements are disposed within a geologic formation having a predetermined potential thermal output capacity. A power generation device is incorporated in the loop to recover energy. A working fluid is circulated within the loop at varying flow rates to oscillate thermal output about the predetermined potential thermal output capacity, to produce on demand power where the average thermal output may equal the predetermined potential thermal output capacity. Integrations with intermittent renewable energy sources are provided which optimize performance and distribution.

IPC Classes  ?

• F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
• F24T 10/10 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground

Abstract

Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling to form an impervious layer at the wellbore/formation interface. The techniques may be chemical, thermal, mechanical, biological and are fully intended to irreversibly damage the formation in terms of the permeability thereof. With the permeability negated, the wellbore may be used to create a closed loop surface to surface geothermal well operable in the absence of well casing for maximizing thermal transfer to a circulating working fluid. Formulations for the working and drilling fluids are disclosed.

IPC Classes  ?

• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• C09K 8/08 - Clay-free compositions containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
• C09K 8/40 - Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses
• C09K 8/42 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells
• C09K 8/46 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• F24T 10/10 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
• F24T 10/13 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
• F24T 50/00 - Geothermal systems
• F24T 10/00 - Geothermal collectors

Goods & Services

Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production. Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production. Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy. Licensing of intellectual property.

Goods & Services

Licensing of intellectual property.

Goods & Services

Chemicals for use in the drilling of geothermal wells; fluids for use in the transport of particulate materials in geothermal wells; fluids for drilling; chemical additives for drilling fluids; drilling muds; chemical additives for drilling muds; chemical preparations for sealing; heat transfer fluids. Mining machines; drills for the mining industry; drilling tools (power operated), including well drilling tools (power operated), directional drilling tools (power operated) and directional well drilling tools (power operated); drilling machines, including well drilling machines, directional drilling machines and directional well drilling machines; drilling rods, including well drilling rods; drilling rigs, including well drilling rigs; mining bits; mining bit sharpeners; drilling heads (parts of machines); drill bits for machines; parts and spare parts of the aforementioned goods. Drilling services, including directional drilling services and directional well drilling services; rental, maintenance and repair of mining machines, drills for the mining industry, drilling tools, drilling machines, drilling rods, drilling rigs, mining bits, mining bit sharpeners, drilling heads and drilling bits; construction, maintenance and repair of geothermal wells, geothermal plants and geothermal power plants; building construction supervision for the construction of geothermal wells, geothermal plants and geothermal power plants; information and consultancy regarding the aforementioned services. Generation of energy by geothermal plants and geothermal power plants; generation of electricity by geothermal plants and geothermal power plants; generation of heat, heat energy and heating from geothermal heat; rental of geothermal plants and geothermal power plants; information and consultancy regarding the aforementioned services.

Goods & Services

Chemicals for use in the drilling of geothermal wells; fluids for use in the transport of particulate materials in geothermal wells; fluids for drilling; chemical additives for drilling fluids; drilling muds; chemical additives for drilling muds; chemical preparations for sealing; heat transfer fluids. Mining machines; drills for the mining industry; drilling tools (power operated), including well drilling tools (power operated), directional drilling tools (power operated) and directional well drilling tools (power operated); drilling machines, including well drilling machines, directional drilling machines and directional well drilling machines; drilling rods, including well drilling rods; drilling rigs, including well drilling rigs; mining bits; mining bit sharpeners; drilling heads (parts of machines); drill bits for machines; parts and spare parts of the aforementioned goods. Drilling services, including directional drilling services and directional well drilling services; rental, maintenance and repair of mining machines, drills for the mining industry, drilling tools, drilling machines, drilling rods, drilling rigs, mining bits, mining bit sharpeners, drilling heads and drilling bits; construction, maintenance and repair of geothermal wells, geothermal plants and geothermal power plants; building construction supervision for the construction of geothermal wells, geothermal plants and geothermal power plants; information and consultancy regarding the aforementioned services. Generation of energy by geothermal plants and geothermal power plants; generation of electricity by geothermal plants and geothermal power plants; generation of heat, heat energy and heating from geothermal heat; rental of geothermal plants and geothermal power plants; information and consultancy regarding the aforementioned services.

Goods & Services

Chemicals for use in the drilling of geothermal wells; fluids for use in the transport of particulate materials in geothermal wells; fluids for drilling; chemical additives for drilling fluids; drilling muds; chemical additives for drilling muds; chemical preparations for sealing; heat transfer fluids. Mining machines; drills for the mining industry; drilling tools (power operated), including well drilling tools (power operated), directional drilling tools (power operated) and directional well drilling tools (power operated); drilling machines, including well drilling machines, directional drilling machines and directional well drilling machines; drilling rods, including well drilling rods; drilling rigs, including well drilling rigs; mining bits; mining bit sharpeners; drilling heads (parts of machines); drill bits for machines; parts and spare parts of the aforementioned goods. Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production. Drilling services, including directional drilling services and directional well drilling services; rental, maintenance and repair of mining machines, drills for the mining industry, drilling tools, drilling machines, drilling rods, drilling rigs, mining bits, mining bit sharpeners, drilling heads and drilling bits; construction, maintenance and repair of geothermal wells, geothermal plants and geothermal power plants; building construction supervision for the construction of geothermal wells, geothermal plants and geothermal power plants; repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production; information and consultancy regarding the aforementioned services. Generation of energy by geothermal plants and geothermal power plants; generation of electricity by geothermal plants and geothermal power plants; generation of heat, heat energy and heating from geothermal heat; rental of geothermal plants and geothermal power plants; information and consultancy regarding the aforementioned services. Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy.

Goods & Services

Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production. Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production. Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy. Licensing of intellectual property.

Goods & Services

Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production. Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production. Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy. Licensing of intellectual property.

Abstract

A method for drilling a geothermal well in a subterranean zone includes drilling, with a drill string, a wellbore of the geothermal well in the subterranean zone. An inherent temperature of the rock adjacent a rock face at a downhole end of the wellbore is at least 250 degrees Celsius. While drilling, a drilling fluid is flowed at a temperature at the rock face such that a difference between the inherent temperature of the rock adjacent the rock face and the temperature of the drilling fluid at the rock face is at least 100 degrees Celsius.

IPC Classes  ?

• E21B 7/00 - Special methods or apparatus for drilling
• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
• E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones

Abstract

A method for drilling a geothermal well in a subterranean zone includes drilling, with a drill string, a wellbore of the geothermal well in the subterranean zone. An inherent temperature of the rock adjacent a rock face at a downhole end of the wellbore is at least 250 degrees Celsius. While drilling, a drilling fluid is flowed at a temperature at the rock face such that a difference between the inherent temperature of the rock adjacent the rock face and the temperature of the drilling fluid at the rock face is at least 100 degrees Celsius.

IPC Classes  ?

• E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
• E21B 7/00 - Special methods or apparatus for drilling

Abstract

A method includes flowing, in a closed loop geothermal well residing in a target subterranean zone, a first heat transfer working fluid and flowing, in the geothermal well, a second working fluid from the surface inlet to the downhole location of the geothermal well. The second working fluid resides upstream of the first heat transfer working fluid. The second working fluid includes a fluid density greater than a fluid density of the first heat transfer working fluid. The method also includes circulating, in the geothermal well, the second working fluid pushing, with the second working fluid, the first heat transfer working fluid toward a surface outlet of the geothermal well. The method also includes collecting energy from the mobilized first heat transfer working fluid received at the surface outlet of the geothermal well.

IPC Classes  ?

• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• F24T 50/00 - Geothermal systems
• F28F 23/00 - Features relating to the use of intermediate heat-exchange materials, e.g. selection of compositions

Abstract

A method includes flowing, in a closed loop geothermal well residing in a target subterranean zone, a first heat transfer working fluid and flowing, in the geothermal well, a second working fluid from the surface inlet to the downhole location of the geothermal well. The second working fluid resides upstream of the first heat transfer working fluid. The second working fluid includes a fluid density greater than a fluid density of the first heat transfer working fluid. The method also includes circulating, in the geothermal well, the second working fluid pushing, with the second working fluid, the first heat transfer working fluid toward a surface outlet of the geothermal well. The method also includes collecting energy from the mobilized first heat transfer working fluid received at the surface outlet of the geothermal well.

IPC Classes  ?

• F24T 50/00 - Geothermal systems
• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• F28F 23/00 - Features relating to the use of intermediate heat-exchange materials, e.g. selection of compositions

Abstract

Methods and system for geothermal energy harvesting using both conductive and convective heat transfer are provided. A geothermal well is provided with inlet and outlet wellbores and an interconnecting wellbore therebetween, the interconnecting wellbore fluidly connected to a plurality of fluid conduits, such as fractures. The interface of the wellbore and fractures with the surrounding earth may be impermeably sealed with a sealant. A heat transfer fluid is circulated throughout the system to extract thermal energy from the earth by conduction, as well as by convection. By providing the plurality of fluid conduits and by utilizing convective as well as conductive heat transfer, the rate of energy extraction may be increased.

IPC Classes  ?

• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• F24T 50/00 - Geothermal systems

Abstract

A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circulated in one well of the pair in one direction and the working fluid of the second well is circulated in as direction opposite. to the first. In this manner temperature equilibration is attainable to mitigate maxima and minima to result in a substantially more uniform temperature of the working fluids in respective wells and the rock formation area there between. Specific operating protocol is disclosed having regard to the temperature control for maximizing thermal energy recovery.

IPC Classes  ?

• F24T 10/13 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
• F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature

Abstract

Methods and system for geothermal energy harvesting using both conductive and convective heat transfer are provided. A geothermal well is provided with inlet and outlet wellbores and an interconnecting wellbore therebetween, the interconnecting wellbore fluidly connected to a plurality of fluid conduits, such as fractures. The interface of the wellbore and fractures with the surrounding earth may be impermeably sealed with a sealant. A heat transfer fluid is circulated throughout the system to extract thermal energy from the earth by conduction, as well as by convection. By providing the plurality of fluid conduits and by utilizing convective as well as conductive heat transfer, the rate of energy extraction may be increased.

IPC Classes  ?

• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• F24T 50/00 - Geothermal systems

Abstract

Closed loop wellbore configurations with unrestricted geometry for accommodating irregular or challenging thermal gradients within a thermally productive formation are disclosed. A working fluid is utilized in the loop for extraction of thermal energy there from. The loop and the unrestricted geometry are achieved using magnetic ranging of independent drilling operations which intersect from an inlet well and outlet well to form an interconnecting segment. In conjunction with the directional drilling, conditioning operations are incorporated to condition the rock face, cool the entire system, activate the wellbore for treatment to optimize thermal transfer inter alia. The significant degree of freedom in wellbore configuration is further optimized by the absence of mechanical s. -·*> impediments such as casing or liners in the heat transfer areas.

IPC Classes  ?

• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells

Abstract

Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling in sequenced operations with utilization of phase change materials to form an impervious layer at the wellbore/formation interface in high temperature applications. The techniques may be chemical, thermal, mechanical, biological and are fully intended to irreversibly damage the formation in terms of the permeability thereof. With the permeability negated, the wellbore may be used to create a closed loop surface to surface geothermal well operable in the absence of well casing for heat transfer surfaces for maximizing thermal transfer to a circulating working fluid. Formulations for the working and drilling fluids are disclosed.

IPC Classes  ?

• E21B 33/10 - Sealing or packing boreholes or wells in the borehole
• E21B 33/13 - Methods or devices for cementing, for plugging holes, crevices or the like

Abstract

Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling in sequenced operations with utilization of phase change materials to form an impervious layer at the wellbore/formation interface in high temperature applications. The techniques may be chemical, thermal, mechanical, biological and are fully intended to irreversibly damage the formation in terms of the permeability thereof. With the permeability negated, the wellbore may be used to create a closed loop surface to surface geothermal well operable in the absence of well casing for heat transfer surfaces for maximizing thermal transfer to a circulating working fluid. Formulations for the working and drilling fluids are disclosed.

IPC Classes  ?

• E21B 7/00 - Special methods or apparatus for drilling
• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
• E21B 21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
• E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones

Abstract

Methods for providing on demand power to an end user in a variety of embodiments are disclosed. Closed loop thermal recovery arrangements are disposed within a geologic formation having a predetermined potential thermal output capacity. A power generation device is incorporated in the loop to recover energy. A working fluid is circulated within the loop at varying flow rates to oscillate thermal output about the predetermined potential thermal output capacity, to produce on demand power where the average thermal output may equal the predetermined potential thermal output capacity. Integrations with intermittent renewable energy sources are provided which optimize performance and distribution.

IPC Classes  ?

• F24T 50/00 - Geothermal systems
• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• F03G 4/00 - Devices for producing mechanical power from geothermal energy
• H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers

Abstract

Methods for providing on demand power to an end user in a variety of embodiments are disclosed. Closed loop thermal recovery arrangements are disposed within a geologic formation having a predetermined potential thermal output capacity. A power generation device is incorporated in the loop to recover energy. A working fluid is circulated within the loop at varying flow rates to oscillate thermal output about the predetermined potential thermal output capacity, to produce on demand power where the average thermal output may equal the predetermined potential thermal output capacity. Integrations with intermittent renewable energy sources are provided which optimize performance and distribution.

IPC Classes  ?

• F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
• F24T 10/10 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground

Abstract

Methods for drilling in higher temperature rock formations such as geothermal formations with phase change material augmented drilling fluid include observing flow rate of the augmented fluid. Heat exchange between the annulus returning fluid and tubular fluid can be minimized thereby facilitating a cooler fluid for contact with a rock face being drilled. The cooling assists in pre-fracturing the rock face prior to destruction by the drill bit.

IPC Classes  ?

• E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
• E21B 43/25 - Methods for stimulating production
• E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
• C09K 8/28 - Oil-in-water emulsions containing organic additives

Abstract

Methods for drilling in higher temperature rock formations such as geothermal formations with phase change material augmented drilling fluid are disclosed. By observing flow rate of the augmented fluid, heat exchange between the annulus returning fluid and tubular fluid can be minimized thereby facilitating a cooler fluid for contact with a rock face being drilled. The cooling assists in pre-fracturing the rock face prior to destruction by the drill bit.

IPC Classes  ?

• C09K 8/04 - Aqueous well-drilling compositions
• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
• E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
• F24T 50/00 - Geothermal systems
• F25D 31/00 - Other cooling or freezing apparatus

Abstract

Applicant: Eavor Technologies Inc.Docket No.: 3108-12USABSTRACTMethods for drilling in higher temperature rock formations such as geothermal formations with phase change material augmented drilling fluid are disclosed. By observing flow rate of the augmented fluid, heat exchange between the annulus returning fluid and tubular fluid can be minimized thereby facilitating a cooler fluid for contact with a rock face being drilled. The cooling assists in pre-fracturing the rock face prior to destruction by the drill bit.23Date Recue/Date Received 2020-10-29

IPC Classes  ?

• C09K 5/02 - Materials undergoing a change of physical state when used
• C09K 8/035 - Organic additives
• C09K 8/04 - Aqueous well-drilling compositions
• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
• E21B 21/08 - Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
• E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
• F24T 50/00 - Geothermal systems
• F25D 31/00 - Other cooling or freezing apparatus
• F28F 23/00 - Features relating to the use of intermediate heat-exchange materials, e.g. selection of compositions

Goods & Services

Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production Repurposing existing oil and gas wells to generate geothermal energy, namely, construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of design and development services of geothermal energy production technology; provision of development and testing services geothermal energy production methods; product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy Licensing of intellectual property

Goods & Services

Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production Repurposing existing oil and gas wells to generate geothermal energy, namely, construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of design and development services of geothermal energy production technology; provision of development and testing services geothermal energy production methods; product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy Licensing of intellectual property

Goods & Services

(1) Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production (2) Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production (3) Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy (4) Licensing of intellectual property

Goods & Services

(1) Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production (2) Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production (3) Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy (4) Licensing of intellectual property

Abstract

Methods for providing on demand power to an end user in a variety of embodiments are disclosed. Closed loop thermal recovery arrangements are disposed within a geologic formation having a predetermined potential thermal output capacity. A power generation device is incorporated in the loop to recover energy. A working fluid is circulated within the loop at varying flow rates to oscillate thermal output about the predetermined potential thermal output capacity, to produce on demand power where the average thermal output may equal the predetermined potential thermal output capacity. Integrations with intermittent renewable energy sources are provided which optimize performance and distribution.

IPC Classes  ?

• B65G 5/00 - Storing fluids in natural or artificial cavities or chambers in the earth
• F03D 9/18 - Combinations of wind motors with apparatus storing energy storing heat
• F24T 50/00 - Geothermal systems
• F28D 20/00 - Heat storage plants or apparatus in generalRegenerative heat-exchange apparatus not covered by groups or

Abstract

Applicant: Eavor Technologies Inc. Docket No.: 3108-14.1 CA DIV ABSTRACT Methods for providing on demand power to an end user in a variety of embodiments are disclosed. Closed loop thermal recovery arrangements are disposed within a geologic formation having a predetermined potential thermal output capacity. A power generation device is incorporated in the loop to recover energy. A working fluid is circulated within the loop at varying flow rates to oscillate thermal output about the predetermined potential thermal output capacity, to produce on demand power where the average thermal output may equal the predetermined potential thermal output capacity. Integrations with intermittent renewable energy sources are provided which optimize performance and distribution. 36 Date Recue/Date Received 2021-11-12

IPC Classes  ?

• B65G 5/00 - Storing fluids in natural or artificial cavities or chambers in the earth
• F03D 9/18 - Combinations of wind motors with apparatus storing energy storing heat
• F24T 50/00 - Geothermal systems
• F28D 20/00 - Heat storage plants or apparatus in generalRegenerative heat-exchange apparatus not covered by groups or

Abstract

Methods for providing on demand power to an end user in a variety of embodiments are disclosed. Closed loop thermal recovery arrangements are disposed within a geologic formation having a predetermined potential thermal output capacity. A power generation device is incorporated in the loop to recover energy. A working fluid is circulated within the loop at varying flow rates to oscillate thermal output about the predetermined potential thermal output capacity, to produce on demand power where the average thermal output may equal the predetermined potential thermal output capacity. Integrations with intermittent renewable energy sources are provided which optimize performance and distribution.

IPC Classes  ?

• B65G 5/00 - Storing fluids in natural or artificial cavities or chambers in the earth
• F03D 9/18 - Combinations of wind motors with apparatus storing energy storing heat
• F24T 50/00 - Geothermal systems
• F28D 20/00 - Heat storage plants or apparatus in generalRegenerative heat-exchange apparatus not covered by groups or

Abstract

Closed loop wellbore configurations with unrestricted geometry for accommodating irregular or challenging thermal gradients within a thermally productive formation are disclosed. A working fluid is utilized in the loop for extraction of thermal energy there from. The loop and the unrestricted geometry are achieved using magnetic ranging of independent drilling operations which intersect from an inlet well and outlet well to form an interconnecting segment. In conjunction with the directional drilling, conditioning operations are incorporated to condition the rock face, cool the entire system, activate the wellbore for treatment to optimize thermal transfer inter alia. The significant degree of freedom in wellbore configuration is further optimized by the absence of mechanical impediments such as casing or liners in the heat transfer areas.

IPC Classes  ?

• E21B 7/00 - Special methods or apparatus for drilling
• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• E21B 47/13 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range
• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells

Abstract

Operational protocol sequences for recovering energy from a thermally productive formation are disclosed. Sealing, drilling, multiranging, power production and distribution techniques in predetermined sequences for well formation are utilized to recover energy regardless of thermal gradient variation, formation depth and permeability and other anomalies or impedances.

IPC Classes  ?

• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• E21B 7/04 - Directional drilling
• E21B 33/13 - Methods or devices for cementing, for plugging holes, crevices or the like
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• F03G 4/00 - Devices for producing mechanical power from geothermal energy
• F03G 4/02 - Devices for producing mechanical power from geothermal energy with direct fluid contact
• F24T 50/00 - Geothermal systems
• E21B 47/0228 - Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor

Abstract

Guidance methods for guiding the drilling of wells while reducing trajectory drift. Each drilled well incorporates signalling devices which are used together or in a selected sequence to guide additional well drilling. With the progressive addition of the signalling devices spacing, positioning and connection of wells, particularly multilateral wells, is focused and precise.

IPC Classes  ?

• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
• E21B 7/04 - Directional drilling

Abstract

Operational protocol sequences for recovering energy from a thermally productive formation are disclosed. Sealing, drilling, multiranging, power production and distribution techniques in predetermined sequences for well formation are utilized to recover energy regardless of thermal gradient variation, formation depth and permeability and other anomalies or impedances.

IPC Classes  ?

• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
• F03G 4/00 - Devices for producing mechanical power from geothermal energy

Abstract

Operational protocol sequences for recovering energy from a thermally productive formation are disclosed. Sealing, drilling, multiranging, power production and distribution techniques in predetermined sequences for well formation are utilized to recover energy regardless of thermal gradient variation, formation depth and permeability and other anomalies or impedances.

IPC Classes  ?

• E21B 7/00 - Special methods or apparatus for drilling
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• E21B 47/09 - Locating or determining the position of objects in boreholes or wellsIdentifying the free or blocked portions of pipes
• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells

Abstract

Guidance methods for guiding the drilling of wells while reducing trajectory drift. Each drilled well incorporates signalling devices which are used together or in a selected sequence to guide additional well drilling. With the progressive addition of the signalling devices spacing, positioning and connection of wells, particularly multilateral wells, is focused and precise.

IPC Classes  ?

• E21B 7/00 - Special methods or apparatus for drilling
• E21B 7/04 - Directional drilling
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions

Abstract

Operational protocol sequences for recovering energy from a thermally productive formation are disclosed. Sealing, drilling, multiranging, power production and distribution techniques in predetermined sequences for well formation are utilized to recover energy regardless of thermal gradient variation, formation depth and permeability and other anomalies or impedances.

IPC Classes  ?

• E21B 7/00 - Special methods or apparatus for drilling
• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells

Goods & Services

Technical consulting services in the field of production of geothermal energy Outsourcing services in the nature of arranging procurement of goods and services for others in the field of geothermal wells and geothermal energy production Construction project management services in the field of construction of geothermal wells and geothermal energy production; Repurposing existing oil and gas wells to generate geothermal energy, namely, construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production Conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy Licensing of intellectual property

Abstract

A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circulated in one well of the pair in one direction and the working fluid of the second well is circulated in as direction opposite, to the first. In this manner temperature equilibration is attainable to mitigate maxima and minima to result in a substantially more uniform temperature of the working fluids in respective wells and the rock formation area there between. Specific operating protocol is disclosed having regard to the temperature control for maximizing thermal energy recovery.

IPC Classes  ?

• F24T 50/00 - Geothermal systems
• E21B 47/07 - Temperature

Abstract

A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circulated in one well of the pair in one direction and the working fluid of the second well is circulated in as direction opposite. to the first. In this manner temperature equilibration is attainable to mitigate maxima and minima to result in a substantially more uniform temperature of the working fluids in respective wells and the rock formation area there between. Specific operating protocol is disclosed having regard to the temperature control for maximizing thermal energy recovery.

IPC Classes  ?

• F24T 10/13 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
• F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature

Abstract

A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circulated in one well of the pair in one direction and the working fluid of the second well is circulated in as direction opposite. to the first. In this manner temperature equilibration is attainable to mitigate maxima and minima to result in a substantially more uniform temperature of the working fluids in respective wells and the rock formation area there between. Specific operating protocol is disclosed having regard to the temperature control for maximizing thermal energy recovery.

IPC Classes  ?

• E21B 47/07 - Temperature
• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells

Abstract

A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circulated in one well of the pair in one direction and the working fluid of the second well is circulated in as direction opposite. to the first. In this manner temperature equilibration is attainable to mitigate maxima and minima to result in a substantially more uniform temperature of the working fluids in respective wells and the rock formation area there between. Specific operating protocol is disclosed having regard to the temperature control for maximizing thermal energy recovery.

IPC Classes  ?

• E21B 47/07 - Temperature
• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells

Abstract

Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling to form an impervious layer at the wellbore/formation interface. The techniques may be chemical, thermal, mechanical, biological and are fully intended to irreversibly damage the formation in terms of the permeability thereof. With the permeability negated, the wellbore may be used to create a closed loop surface to surface geothermal well operable in the absence of well casing for maximizing thermal transfer to a circulating working fluid. Formulations for the working and drilling fluids are disclosed.

IPC Classes  ?

• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• C09K 8/50 - Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• F24T 10/10 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
• C09K 8/08 - Clay-free compositions containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
• C09K 8/40 - Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses
• C09K 8/42 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells
• C09K 8/46 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
• F24T 10/13 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
• F24T 50/00 - Geothermal systems
• F24T 10/00 - Geothermal collectors

Abstract

Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling to form an impervious layer at the wellbore/formation interface. The techniques may be chemical, thermal, mechanical, biological and are fully intended to irreversibly damage the formation in terms of the permeability thereof. With the permeability negated, the wellbore may be used to create a closed loop surface to surface geothermal well operable in the absence of well casing for maximizing thermal transfer to a circulating working fluid. Formulations for the working and drilling fluids are disclosed.

IPC Classes  ?

• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• C09K 5/00 - Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerantsMaterials for the production of heat or cold by chemical reactions other than by combustion
• C09K 8/50 - Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• F03G 4/02 - Devices for producing mechanical power from geothermal energy with direct fluid contact
• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• F24T 50/00 - Geothermal systems

Abstract

Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling to form an impervious layer at the wellbore/formation interface. The techniques may be chemical, thermal, mechanical, biological and are fully intended to irreversibly damage the formation in terms of the permeability thereof. With the permeability negated, the wellbore may be used to create a closed loop surface to surface geothermal well operable in the absence of well casing for maximizing thermal transfer to a circulating working fluid. Formulations for the working and drilling fluids are disclosed.

IPC Classes  ?

• C09K 5/00 - Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerantsMaterials for the production of heat or cold by chemical reactions other than by combustion
• C09K 8/50 - Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
• C09K 8/72 - Eroding chemicals, e.g. acids
• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
• E21B 33/138 - Plastering the borehole wallInjecting into the formation
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
• F03G 4/02 - Devices for producing mechanical power from geothermal energy with direct fluid contact
• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• F24T 50/00 - Geothermal systems

Abstract

Fluid classes for use in energy recovery in well and geothermal environments for power production are disclosed. The fluids fall into the classes of fluids being capable of increasing thermodynamic efficiency of electricity and/or heat generation from a closed-loop geothermal system. Numerous methods are disclosed which exploit the thermodynamics of the fluids for optimum energy recovery.

IPC Classes  ?

• F24T 50/00 - Geothermal systems
• F24T 10/40 - Geothermal collectors operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes
• F24T 10/15 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubesGeothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes assembled with connectors or with return headers
• E21B 7/04 - Directional drilling
• F24T 10/00 - Geothermal collectors

Abstract

Fluid classes for use in energy recovery in well and geothermal environments for power production are disclosed. The fluids fall into the classes of fluids being capable of increasing thermodynamic efficiency of electricity and/or heat generation from a closed-loop geothermal system. Numerous methods are disclosed which exploit the thermodynamics of the fluids for optimum energy recovery.

IPC Classes  ?

• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• C09K 5/00 - Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerantsMaterials for the production of heat or cold by chemical reactions other than by combustion
• F03G 4/00 - Devices for producing mechanical power from geothermal energy
• F24T 10/40 - Geothermal collectors operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes
• F24T 50/00 - Geothermal systems

Goods & Services

(1) Outsourcing services in the nature of arranging procurement of goods and services for others in the field of geothermal wells and geothermal energy production (2) Construction project management services in the field of construction of geothermal wells and geothermal energy production; Repurposing existing oil and gas wells to generate geothermal energy, namely, construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production (3) Technical consulting services in the field of production of geothermal energy (4) Conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy (5) Licensing of intellectual property

Abstract

Fluid classes for use in energy recovery in well and geothermal environments for power production are disclosed. The fluids fall into the classes of fluids being capable of increasing thermodynamic efficiency of electricity and/or heat generation from a closed-loop geothermal system. Numerous methods are disclosed which exploit the thermodynamics of the fluids for optimum energy recovery.

IPC Classes  ?

• C09K 5/16 - Materials undergoing chemical reactions when used
• F03G 4/00 - Devices for producing mechanical power from geothermal energy
• F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
• F24T 10/40 - Geothermal collectors operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes
• F24T 50/00 - Geothermal systems

Abstract

Methods and fluids for generating power with closed well loops in a geothermal environment. The loops may be segregated or non segregated. Operation of the loop circuits is dynamically modifiable in subzero temperatures which contributes to higher and efficient power output. Specific working fluid compositions, including drag reducers, complement the efficiency together with the absence of casing within the loop for maximum thermal transfer between the formation and the working fluid.

IPC Classes  ?

• F03G 4/00 - Devices for producing mechanical power from geothermal energy
• F02G 1/04 - Hot gas positive-displacement engine plants of closed-cycle type
• F24T 50/00 - Geothermal systems

Goods & Services

Outsourcing services in the nature of arranging procurement of goods and services for others in the field of geothermal wells and geothermal energy production Construction project management services in the field of construction of geothermal wells and geothermal energy production; Repurposing existing oil and gas wells to generate geothermal energy, namely, construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production Technical consulting services in the field of production of geothermal energy Conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy Licensing of intellectual property

Goods & Services

Outsourcing services in the nature of arranging procurement of goods and services for others in the field of geothermal wells and geothermal energy production Construction project management services in the field of construction of geothermal wells and geothermal energy production; Repurposing existing oil and gas wells to generate geothermal energy, namely, construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production Technical consulting services in the field of production of geothermal energy Conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy Licensing of intellectual property

Goods & Services

Outsourcing services in the nature of arranging procurement of goods and services for others in the field of geothermal wells and geothermal energy production Construction project management services in the field of construction of geothermal wells and geothermal energy production; Repurposing existing oil and gas wells to generate geothermal energy, namely, construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production Technical consulting services in the field of production of geothermal energy Conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy Licensing of intellectual property

Abstract

A method and apparatus for recycling unused or suspended wells and areas with predetermined suitability for well installation. In one embodiment, existing unused well sites are repurposed for contact in or adjacent a geothermal zone. Drilling extends horizontally in direct contact with the geothermal zone for heat transfer and subsequently terminates at a newly drilled well. The heated working liquid within the sealed annulus is cooled within a sealed top loop at or below the surface and recirculated for further heat transfer. The closed loop is continuous above and below the geothermal formation and can cluster several such arrangements and also consolidate clusters in a drilling field of unused wells. The loop may be incorporated in areas with predetermined suitability (greenfield) for well installation.

IPC Classes  ?

• F24T 10/10 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
• E21B 41/00 - Equipment or details not covered by groups
• E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells

Goods & Services

(1) Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production (2) Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production (3) Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy (4) Licensing of intellectual property

Goods & Services

(1) Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production (2) Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production (3) Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy (4) Licensing of intellectual property

Goods & Services

(1) Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production (2) Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production (3) Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy (4) Licensing of intellectual property

Goods & Services

(1) Outsourcing services in the nature of arranging procurement of contracts for the purchase and sale of goods and services for others in the field of geothermal wells and geothermal energy production (2) Repurposing existing oil and gas wells to generate geothermal energy, namely construction and drilling services in connection with oil and gas wells, geothermal wells, and geothermal energy production; construction project management services in the field of construction of geothermal wells and geothermal energy production (3) Technical consulting services and providing technology information in connection with geothermal energy production; conducting environmental studies, research, testing, and engineering in connection with developing geothermal wells and geothermal energy production; design and development of geothermal energy production technology for others; provision of geothermal energy production technology, geothermal energy production methods, and product design consulting for others in connection with developing geothermal wells and geothermal energy production; research and development of technology in the field of geothermal wells and geothermal energy production; analysis for exploitation and exploration of geothermal energy (4) Licensing of intellectual property