Abstract

A method for installing a geothermal installation within a geologic formation including the steps of: - operating a geothermal well system, the geothermal well system comprising an inlet conduit, an outlet conduit and an interconnecting conduit, the interconnecting conduit fluidly coupled to and interconnecting the inlet conduit with the outlet conduit; - drilling an additional interconnecting conduit with the help of at least one service conduit; - interconnecting the additional interconnecting conduit with both the inlet conduit and the outlet conduit for fluidly coupling the inlet conduit with the outlet conduit through the additional interconnecting conduit, while the geothermal well system is not operated; and - fluidly blocking the connection between the additional interconnecting conduit with the service conduit using a blocking element is provided. Furthermore, a geothermal installation is provided.

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 10/10 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
• F24T 50/00 - Geothermal systems
• 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

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
• 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 geothermal installation for collecting heat for the generation of electricity is provided. The installation includes a fluid transport system comprising at least one fluid injection bore extending from a thermoelectric generator located at or near the Earth's surface to a depth below the Earth's surface sufficient such that energy collected can produce electricity. In particular, a depth of at least 500 m, preferably at least 1500 m, and more preferably at least 3000 m is sufficient to see benefits. The fluid injection bore is connected at the said depth, respectively to a plurality of micro-tunnels which extend outwardly substantially horizontally or diagonally downwardly from a horizontal plane passing through the said depth, preferably interconnected in at least one array. The micro-tunnels in turn are connected with fluid return bores which return a heat transfer fluid to the thermoelectric generator. The fluid transport system is adapted for the flow therethrough to and from the thermoelectric generator of the heat transfer fluid.

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
• 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 10/20 - 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 geothermal installation for collecting heat for the gen- eration of electricity is provided. The installation includes a fluid trans- port system comprising at least one fluid injection bore extending from a thermoelectric generator located at or near the Earth's surface to a depth below the Earth's surface sufficient such that energy collected can pro- duce electricity. In particular, a depth of at least 500 m, preferably at least 1500m, and more preferably at least 3000m is sufficient to see benefits. The fluid injection bore is connected at the said depth, respectively to a plurality of microtunnels which extend outwardly substantially horizon- tally or diagonally downwardly from a horizontal plane passing through the said depth, preferably interconnected in at least one array. The mi- cro-tunnels in turn are connected with fluid return bores which return a heat transfer fluid to the thermoelectric generator. The fluid transport system is adapted for the flow therethrough to and from the thermoelec- tric generator of the heat transfer fluid.

IPC Classes  ?

• F03G 4/00 - Devices for producing mechanical power from geothermal energy
• 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
• F24T 50/00 - Geothermal systems