37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Oil well casing, tubing, and drill pipe installation; drill pipe installation, namely installation of a drill pipe to secure permanent abandonment, for all types of wells; plugging of oil and gas wells, natural gas wells, wells used for disposal and storage of nuclear waste, groundwater wells and co2 injection wells; plugging of oil and gas wells, natural gas wells, wells used for disposal and storage of nuclear waste, groundwater wells and co2 injection wells for the purpose of permanent abandonment.
(2) Oil and gas well treatment; oil and gas well treatment, namely the process of securing permanent abandonment of wells; natural gas well treatment; treatment of wells used for disposal and storage of nuclear waste, groundwater wells and co2 injection wells; natural gas well treatment, namely the process of securing permanent abandonment of wells; treatment of wells used for disposal and storage of nuclear waste, groundwater wells and co2 injection wells, namely the process of securing permanent abandonment of wells.
(3) Oil-well testing; exploration services in the field of oil, gas and mining.
2.
METHOD FOR PROVIDING A PERMANENT BARRIER IN A WELL
A method for providing a permanent barrier in a well includes lowering a first, particulate constituent of a pyrotechnic mixture to a desired location in the well, wherein the first constituent is a metal oxide. The method further includes waiting a first predetermined period of time to allow the first, particulate constituent to settle as sediment at the desired location, lowering a second constituent of the pyrotechnic mixture to the desired location in the well, wherein the second constituent is a metal, and igniting the pyrotechnic mixture to start a heat generating exothermic reduction-oxidation process.
The present invention relates to a downhole pressure equalizer comprising an elongated housing comprising a piston compartment having a first end provided in fluid communication with an outside of the elongated housing and a second end provided in fluid communication with a process chamber of a well tool. A piston device provided in the position compartment comprises an outer piston section slidingly and sealingly engaged with the piston compartment; and an inner piston section slidingly and sealingly engaged within the through bore of the outer piston section.
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 33/13 - Methods or devices for cementing, for plugging holes, crevices or the like
4.
System and method for forming a permanent barrier in a well
The present invention relates to a well tool system for forming a permanent barrier in a well, the system comprising: a well tool device comprising a pyrotechnic mixture and an ignition device provided within or adjacent to the pyrotechnic mixture; a tool string connected above the well tool device; and a replenishment string connected between the well tool device and tool string. The replenishment string comprises pyrotechnic mixture. The elevating device is configured to control the movement of the replenishment string towards a heat generating process started by means of the ignition device.
A method for providing a permanent barrier in a well includes lowering a first, particulate constituent of a pyrotechnic mixture to a desired location in the well, wherein the first constituent is a metal oxide. The method further includes waiting a first predetermined period of time to allow the first, particulate constituent to settle as sediment at the desired location, lowering a second constituent of the pyrotechnic mixture to the desired location in the well, wherein the second constituent is a metal, and igniting the pyrotechnic mixture to start a heat generating exothermic reduction-oxidation process.
The present invention relates to a method and system for creating and verifying a thermite-based downhole well barrier (120) in a well (100). The method comprises the steps of: lowering a heat generating mixture (10) to a desired location (L) in the well (100); igniting the heat generating mixture (10), thereby starting a heat generating process; measuring a parameter (P(t)) representative of fluid pressure and/or fluid flow at an upper location (UL) of the well (100) as a function of time, at least from time of ignition (t0) of the heat generating mixture (10); and identifying a first peak area (PA1) of the measured parameter (P(t)). The method further comprises the step of determining that the integrity of the well barrier (120) is intact by comparing the first peak area (PA1) with a first peak area (EA1) of an expected parameter (E(t)).
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
This invention relates to a thermite reaction charge comprising bismuth oxide and aluminium adapted to react with a reaction rate giving a reaction time of 8 to 15 seconds for a thermite reaction charge of 30 to 100 kg from initialisation of the thermite reaction charge to at least 90% of the thermite reaction charge is reacted, a method for forming a three-phased rock-to-rock barrier by applying the thermite reaction charge and a well barrier formed thereof.
C06B 33/00 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
C06B 45/12 - Compositions or products which are defined by structure or arrangement of component or product having contiguous layers or zones
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Oil well casing, tubing, and drill pipe installation; drill
pipe installation, namely installation of a drill pipe to
secure permanent abandonment, for all types of wells;
plugging of oil and gas wells, natural gas wells, wells used
for disposal and storage of nuclear waste, groundwater wells
and co2 injection wells; plugging of oil and gas wells,
natural gas wells, wells used for disposal and storage of
nuclear waste, groundwater wells and co2 injection wells for
the purpose of permanent abandonment. Oil and gas well treatment; oil and gas well treatment,
namely the process of securing permanent abandonment of
wells; natural gas well treatment; treatment of wells used
for disposal and storage of nuclear waste, groundwater wells
and co2 injection wells; natural gas well treatment, namely
the process of securing permanent abandonment of wells;
treatment of wells used for disposal and storage of nuclear
waste, groundwater wells and co2 injection wells, namely the
process of securing permanent abandonment of wells. Oil-well testing; exploration services in the field of oil,
gas and mining.
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Oil and gas well treatment; Oil and gas well treatment for permanent abandonment of wells; Natural gas well treatment; Treatment of wells used for disposal and storage of nuclear waste, groundwater wells and CO2 injection wells for permanent abandonment of wells Oil-well testing; exploration services in the field of oil, gas and mining
01 - Chemical and biological materials for industrial, scientific and agricultural use
19 - Non-metallic building materials
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Chemicals for use in industry; tempering and soldering preparations; Industrial minerals; Minerals in powder form for industrial use; Metal hardening preparations; Chemicals for use in metal treatment; Metallic oxides; metalloids; Mixture of metals and chemicals for industrial use; all goods in relation to oil wells, gas wells, natural gas wells, wells used for disposal and storage of nuclear waste, groundwater wells and CO2 injection wells. Minerals for use in construction; Building and construction materials and elements made of sand, clay, minerals and concrete; Non-metallic minerals for building or construction. Oil well casing, tubing, and drill pipe installation; drill pipe installation, namely installation of a drill pipe to secure permanent abandonment, for all types of wells; Plugging of oil and gas wells, natural gas wells, wells used for disposal and storage of nuclear waste, groundwater wells and CO2 injection wells; Plugging of oil and gas wells, natural gas wells, wells used for disposal and storage of nuclear waste, groundwater wells and CO2 injection wells for the purpose of permanent abandonment; Plugging of oil and gas wells, natural gas wells, wells used for disposal and storage of nuclear waste, groundwater wells and CO2 injection wells for the purpose of permanent abandonment. Oil and gas well treatment; Oil and gas well treatment, namely the process of securing permanent abandonment of wells; natural gas well treatment; Treatment of wells used for disposal and storage of nuclear waste, groundwater wells and CO2 injection wells; natural gas well treatment, namely the process of securing permanent abandonment of wells; Treatment of wells used for disposal and storage of nuclear waste, groundwater wells and CO2 injection wells, namely the process of securing permanent abandonment of wells. Oil-well testing; exploration services in the field of oil, gas and mining.
12.
Well tool device for forming a permanent barrier in a well
A well tool device for forming a permanent barrier in a well includes a housing and an ignition device. A compartment is provided in the housing. A pyrotechnic mixture or heat generating mixture is provided within the compartment. The ignition device is adapted to heating at least a part of the pyrotechnic mixture or the heat generating mixture to its ignition temperature. If the pyrotechnic mixture is provided, the pyrotechnic mixture includes a first metal and at least a section of the housing is made of the first metal. If the heat generating mixture is provided, at least a section of the housing is made from a material being a constituent of the heat generating mixture.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
The present invention relates to a downhole pressure equalizer (10) comprising an elongated housing (11) comprising a piston compartment (12) having a first end (12a) provided in fluid communication with an outside (OS) of the elongated housing (11) and a second end (12b) provided in fluid communication with a process chamber (220) of a well tool (200). A piston device (30) provided in the position compartment comprises an outer piston section (40) slidingly and sealingly engaged with the piston compartment (12); and an inner piston section (50) slidingly and sealingly engaged within the through bore (42) of the outer piston section (40). The equalizer (10) is configured to be in one of the following states: - a first state (SI), in which the pressure difference between the fluid pressure (P1) in the first sub-compartment (13a) and the fluid pressure (P2) in the second sub-compartment (13b) causes the outer piston section (40) and the inner piston section (50) to move towards the second end (12b) of the piston compartment (12); - a second state (S2), in which the pressure difference between the fluid pressure (P1) in the first sub-compartment (13a) and the fluid pressure (P2) in the second sub-compartment (13b) causes the inner piston section (50) to move towards the first end (12a) of the piston compartment (12) while the outer piston section (40) is kept stationary.
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
A well tool device for forming a permanent well barrier includes a housing having a circular cross-section and a longitudinal extension; a pyrotechnic mixture provided in the housing; a flow generating device provided in the housing; and a motor for driving the flow generating device. After ignition, the pyrotechnic mixture turns into a molten mass; and the flow generating device is configured to generate a forced flow of the molten mass. A method for forming a permanent well barrier using the well tool device includes installing the well tool device in a well; and igniting the pyrotechnic mixture. The pyrotechnic mixture turns into a molten mass upon ignition. The method further includes starting the motor; and generating a forced flow of molten mass by the flow generating device.
The present invention relates to a downhole pressure equalizer (10) comprising an elongated housing (11) comprising a piston compartment (12) having a first end (12a) provided in fluid communication with an outside (OS) of the elongated housing (11) and a second end (12b) provided in fluid communication with a process chamber (220) of a well tool (200). A piston device (30) provided in the position compartment comprises an outer piston section (40) slidingly and sealingly engaged with the piston compartment (12); and an inner piston section (50) slidingly and sealingly engaged within the through bore (42) of the outer piston section (40). The equalizer (10) is configured to be in one of the following states: - a first state (SI), in which the pressure difference between the fluid pressure (P1) in the first sub-compartment (13a) and the fluid pressure (P2) in the second sub-compartment (13b) causes the outer piston section (40) and the inner piston section (50) to move towards the second end (12b) of the piston compartment (12); - a second state (S2), in which the pressure difference between the fluid pressure (P1) in the first sub-compartment (13a) and the fluid pressure (P2) in the second sub-compartment (13b) causes the inner piston section (50) to move towards the first end (12a) of the piston compartment (12) while the outer piston section (40) is kept stationary.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
16.
SYSTEM AND METHOD FOR FORMING A PERMANENT BARRIER IN A WELL
The present invention relates to a well tool system (1) for forming a permanent barrier in a well (WE), the system comprising: a well tool device (10) comprising a pyrotechnic mixture (40) and an ignition device (50) provided within or adjacent to the pyrotechnic mixture (40); a tool string (70) connected above the well tool device 5 (10); and a replenishment string (90) connected between the well tool device (10) and tool string (70). The replenishment string (90) comprises pyrotechnic mixture. The elevating device (80) is configured to control the movement of the replenishment string (90) towards a heat generating process started by means of the ignition device (50).
The present invention relates to a method for providing a permanent barrier in a well (WE). Step a) comprises lowering a first, particulate constituent (45) of a pyrotechnic mixture (40) to a desired location in the well (WE); wherein the first constituent is a metal oxide. Step b) comprises waiting a first predetermined period of time (TP1) to allow the first, particulate constituent (45) to settle as sediment at the desired location. Step c) comprises lowering a second constituent (46) of the pyrotechnic mixture (40) to the desired location in the well (WE); wherein the second constituent is a metal. Step d) comprises igniting the pyrotechnic mixture (40) to start a heat generating exothermic reduction-oxidation process.
The present invention relates to a well tool system (1) for forming a permanent barrier in a well (WE), the system comprising: a well tool device (10) comprising a pyrotechnic mixture (40) and an ignition device (50) provided within or adjacent to the pyrotechnic mixture (40); a tool string (70) connected above the well tool device 5 (10); and a replenishment string (90) connected between the well tool device (10) and tool string (70). The replenishment string (90) comprises pyrotechnic mixture. The elevating device (80) is configured to control the movement of the replenishment string (90) towards a heat generating process started by means of the ignition device (50).
The present invention relates to a method for providing a permanent barrier in a well (WE). Step a) comprises lowering a first, particulate constituent (45) of a pyrotechnic mixture (40) to a desired location in the well (WE); wherein the first constituent is a metal oxide. Step b) comprises waiting a first predetermined period of time (TP1) to allow the first, particulate constituent (45) to settle as sediment at the desired location. Step c) comprises lowering a second constituent (46) of the pyrotechnic mixture (40) to the desired location in the well (WE); wherein the second constituent is a metal. Step d) comprises igniting the pyrotechnic mixture (40) to start a heat generating exothermic reduction-oxidation process.
The present invention relates to a well tool device (10) for forming a permanent barrier in a well (WE). The well tool device (10) comprises a pyrotechnic mixture (40) comprising a first constituent and a second constituent, wherein the first constituent is a metal oxide and the second constituent is a metal. An ignition device (50) is provided within or adjacent to the pyrotechnic mixture (40). The pyrotechnic mixture (40) is forming a self-supported pyrotechnic structure (20).
A well tool device having a movable partition device within a housing, the partition device separating an inner volume of the housing into a first compartment and a second compartment, a pyrotechnic mixture in the first compartment, and a fluid line providing fluid communication between the second compartment and an outside of the housing. A method includes, while running the well tool device into the well, equalizing a pressure difference between the second compartment and an ambient pressure outside of the housing, by means of allowing fluids to enter the second compartment through the fluid line, while running the well tool device into the well, equalizing a pressure difference between the first compartment and a pressure inside the second compartment, by means of the partition device being affected by the pressure inside the second compartment, installing the well tool device in the well, and igniting the pyrotechnic mixture.
E21B 33/13 - Methods or devices for cementing, for plugging holes, crevices or the like
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
22.
THERMITE REACTION CHARGE, METHOD FOR FORMING A THREEPHASED ROCK-TO-ROCK WELL BARRIER, AND A WELL BARRIER FORMED THEREOF
This invention relates to a thermite reaction charge comprising bismuth oxide and aluminium adapted to react with a reaction rate giving a reaction time of 8 to 15 seconds for a thermite reaction charge of 30 to 100 kg from initialisation of the thermite reaction charge to at least 90 % of the thermite reaction charge is reacted, a method for forming a three-phased rock-to-rock barrier by applying the thermite reaction charge and a well barrier formed thereof.
C06B 33/00 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
C06B 45/00 - Compositions or products which are defined by structure or arrangement of component or product
C09K 8/42 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
E21B 33/13 - Methods or devices for cementing, for plugging holes, crevices or the like
23.
THERMITE REACTION CHARGE, METHOD FOR FORMING A THREEPHASED ROCK-TO-ROCK WELL BARRIER, AND A WELL BARRIER FORMED THEREOF
This invention relates to a thermite reaction charge comprising bismuth oxide and aluminium adapted to react with a reaction rate giving a reaction time of 8 to 15 seconds for a thermite reaction charge of 30 to 100 kg from initialisation of the thermite reaction charge to at least 90 % of the thermite reaction charge is reacted, a method for forming a three-phased rock-to-rock barrier by applying the thermite reaction charge and a well barrier formed thereof.
C06B 33/00 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
C06B 45/00 - Compositions or products which are defined by structure or arrangement of component or product
C09K 8/42 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
E21B 33/13 - Methods or devices for cementing, for plugging holes, crevices or the like
24.
WELL TOOL DEVICE FOR FORMING A PERMANENT BARRIER IN A WELL
The present invention relates to a well tool device (10) for forming a permanent barrier in a well (WE). The device (10) comprises a housing (20) in which a compartment (30) is provided, a pyrotechnic rnixture (40) provided within the compartment (30), and an ignition device (50) adapted to heating at least a part of the pyrotechnic mixture (40) to its ignition temperature. The pyrotechnic mixture (40) cornprises a first metal. At least a section (21) of the housing (20) is made of the first metal.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
It is disclosed a well tool device and a method for forming a permanent well barrier. The well tool device (10) comprises: - a housing (20) having a circular cross-section and a longitudinal extension; - a pyrotechnic mixture (40) provided in the housing (20); - a flow generating device (60) provided in the housing (20); - a motor (70) for driving the flow generating device (60); wherein, after ignition, the pyrotechnic mixture (40) turns into a molten mass; and wherein the flow generating device (60) is configured to generate a forced flow of the molten mass. The method comprises the steps of: - installing the well tool device (10) in a well; - igniting the pyrotechnic mixture (40), the pyrotechnic mixture turns into a molten mass upon ignition; - starting the motor (70); and generating a forced flow of the molten mass by means of the flow generating device (60).
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
It is disclosed a well tool device and a method for forming a permanent well barrier. The well tool device (10) comprises: - a housing (20) having a circular cross-section and a longitudinal extension; - a pyrotechnic mixture (40) provided in the housing (20); - a flow generating device (60) provided in the housing (20); - a motor (70) for driving the flow generating device (60); wherein, after ignition, the pyrotechnic mixture (40) turns into a molten mass; and wherein the flow generating device (60) is configured to generate a forced flow of the molten mass. The method comprises the steps of: - installing the well tool device (10) in a well; - igniting the pyrotechnic mixture (40), the pyrotechnic mixture turns into a molten mass upon ignition; - starting the motor (70); and generating a forced flow of the molten mass by means of the flow generating device (60).
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
The present invention relates to a well tool device (10) for forming a permanent barrier in a well (WE). The device (10) comprises a housing (20) in which a compartment (30) is provided, a pyrotechnic mixture (40) provided within the compartment (30), and an ignition device (50) adapted to heating at least a part of the pyrotechnic mixture (40) to its ignition temperature. The pyrotechnic mixture (40) comprises a first metal. At least a section (21) of the housing (20) is made of the first metal.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
It is disclosed a well tool device and a method for forming a permanent well barrier. The well tool device (10) comprises: a housing (20); a movable partition device (26a, 26b, 26c) provided within the housing, the partition device (26a, 26b, 26c) separating an inner volume of the housing in a first volume defining a first compartment (30) and a second volume defining a second compartment (60); a pyrotechnic mixture (40) provided in the first compartment (30); and a fluid line (66) providing fluid communication between the second compartment (60) and an outside of the housing (20). The method comprises the steps of: while running the well tool device (10) into the well, equalizing a pressure difference between a pressure inside the second compartment (60) and an ambient pressure outside of the housing (20), by means of allowing fluids to enter the second compartment (60) through the fluid line (66); while running the well tool device (10) into the well, equalizing a pressure difference between a pressure inside the first compartment (30) and a pressure inside the second compartment (60), by means of the partition device (26a, 26b, 26c) being affected by the pressure inside the second compartment (60); installing the well tool device (10) in the well; and igniting the pyrotechnic mixture (40).
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
29.
WELL TOOL DEVICE FOR FORMING A PERMANENT CAP ROCK TO CAP ROCK BARRIER AND METHOD FOR USING SAME
It is disclosed a well tool device and a method for forming a permanent well barrier. The well tool device (10) comprises: a housing (20); a movable partition device (26a, 26b, 26c) provided within the housing, the partition device (26a, 26b, 26c) separating an inner volume of the housing in a first volume defining a first compartment (30) and a second volume defining a second compartment (60); a pyrotechnic mixture (40) provided in the first compartment (30); and a fluid line (66) providing fluid communication between the second compartment (60) and an outside of the housing (20). The method comprises the steps of: while running the well tool device (10) into the well, equalizing a pressure difference between a pressure inside the second compartment (60) and an ambient pressure outside of the housing (20), by means of allowing fluids to enter the second compartment (60) through the fluid line (66); while running the well tool device (10) into the well, equalizing a pressure difference between a pressure inside the first compartment (30) and a pressure inside the second compartment (60), by means of the partition device (26a, 26b, 26c) being affected by the pressure inside the second compartment (60); installing the well tool device (10) in the well; and igniting the pyrotechnic mixture (40).
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
30.
METHOD OF PERFORMING A PERMANENT PLUGGING AND ABANDONMENT OPERATION OF A WELL AND A PERMANENT PLUGGING AND ABANDONMENT BARRIER FORMED BY THE METHOD
A method of performing a permanent plugging and abandonment operation of a well (W) by forming at least two barriers (RSB, CRSB), the method comprising the steps of: - providing an amount of a heat generating mixture (40), - positioning the heat generating mixture (40) at a first position in the well, the first position being at a cap rock (CR) of the well (W), - igniting the heat generating mixture (40) thereby melting surrounding materials at the first position, - waiting a period of time, thereby allowing the melted materials to solidify into a reservoir sealing barrier (RSB) which seals against a reservoir (R) in the well (W), - forming a cap rock sealing barrier (CRSB) at a second position in the well (W) by positioning a cap rock sealing material (CRSM) at the second position thereby sealing against the cap rock (CR). A permanent plugging and abandonment barrier formed by the method is also described.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
31.
Ignitor, system and method of electrical ignition of exothermic mixture
A system and a method of an ignitor for electrical ignition of an exothermic mixture to be used in wells, for the purposes of reinstatement of a barrier in well(s), subterranean storage reservoirs for a variety of potential environmental damaging materials such as CO2, radioactive storage, and other uses. Additionally, the ignitor may include a housing with a compartment within the housing, a first exothermic mixture of at least a metal and an oxide provided in the compartment, a first electrode connectable to a first terminal of a power supply, and a second electrode connectable to a second terminal of the power supply.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
E21B 29/10 - Reconditioning of well casings, e.g. straightening
E21B 33/13 - Methods or devices for cementing, for plugging holes, crevices or the like
32.
A WELL OPERATION TOOL AND METHODS FOR FORMING A PERMANENT WELL BARRIER
The invention relates to a well operation tool (1), and a method of preventing inflow into the well operation tool (1), where the well operation tool (1) may be used in a pressurized environment (2), the pressurized environment having a pressure above 1 atmospheric pressure, the well operation tool (1) comprises: - a pressure-sealed housing (3); - a combustion chamber (4) provided within the housing (3); - an ignition material (5) provided within the combustion chamber (4); - an ignition device (7) for igniting the ignition material (5); - a gas producing material (7) provided within the combustion chamber (4); wherein the gas producing material (7) is adapted to release gas (7') when subjected to a temperature above a threshold value due to ignition of the ignition material (5). In an alternative embodiment, the well operation tool (1) may be pressurized before it is placed in the pressurized embodiment (2).
The invention relates to an ignitor (1) and a system comprising an ignitor (1), as well as a method of electrical ignition of an exothermic mixture, the ignitor (1) comprising: - a housing (2); - a compartment (3) provided within the housing (2); - a first exothermic mixture (15) of at least a metal and an oxide provided in the compartment (3); - a first electrode (4') connectable to a first terminal of a power supply (17); - a second electrode (4'') connectable to a second terminal of the power supply (17); where at least parts of the first and second electrodes (4', 4'') are in contact with the first exothermic mixture (15); where the first electrode (4') and the second electrode (4'') are provided at a distance (d) from each other, wherein, upon appliance of a voltage above a predetermined threshold value between the first and second electrodes (4', 4'') an electromagnetic field (EMF) is created in the first exothermic mixture (15) between the first and second electrodes (4', 4'').
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
Method and use of abandoning a well (2) or removing a well element (10) which is arranged in a well (2) by melting surrounding materials or by melting the well element (10), the method comprising the steps of; providing an amount of a heat generating mixture (6), the amount (6) being adapted to perform one of the desired operations, positioning the heat generating mixture (6) at a melting position in the well (2), igniting the heat generating mixture (6), thereby melting the surrounding materials in the well (2) or melting the well element (10).
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
Method and use of abandoning a well (2) or removing a well element (10) which is arranged in a well (2) by melting surrounding materials or by melting the well element (10), the method comprising the steps of; providing an amount of a heat generating mixture (6), the amount (6) being adapted to perform one of the desired operations, positioning the heat generating mixture (6) at a melting position in the well (2), igniting the heat generating mixture (6), thereby melting the surrounding materials in the well (2) or melting the well element (10).
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
