Abstract: A geothermal power system includes a pressure exchanger fluidically coupled to a heat exchanger. A first fluid enters the pressure exchanger at a first inlet, and flows in a first fluid path to a first outlet. The first fluid flows from the first outlet to the heat exchanger. The first fluid heats a second fluid at the heat exchanger. The first fluid flows from the heat exchanger to a second inlet of the pressure exchanger. The first fluid enters the pressure exchanger at the second inlet, and flows in a second fluid path to a second outlet. A pressure of the first fluid reduces as the first fluid transits through the pressure exchanger along the first fluid path. A pressure of the first fluid increases as the first fluid transits through the pressure exchanger along the second fluid path.

Abstract: A first fluid is produced from a first subterranean formation, and the fluid is used to generate electricity and/or heat a second fluid. The first fluid is injected into a second subterranean formation that is different from the first subterranean formation. The first fluid is transferred from the second subterranean formation to the first subterranean formation. In some implementations, the first fluid is produced from the first subterranean formation at a first zone of a well, and is injected into the second subterranean formation at a second zone of the well. In some implementations, the generation of electricity using the first fluid is performed with an electrical submersible generator installed in the well. In some implementations, the transfer of the first fluid from the second subterranean formation to the first subterranean formation is performed using the electrical submersible generator as a pump.

Abstract: A well is completed in a subterranean formation with first and second fractures. Geothermal fluid flows into the well via the first fracture while flow into the well via the second fracture is prevented. Geothermal fluid flows into the well via the second fracture while flow into the well via the first fracture Is prevented. Fluidic access in the well to the first and second fractures is closed off. Then the well is recompleted on the subterranean formation by creating third and fourth fractures in the subterranean formation. The first, second, third, and fourth fractures are discrete from each other. Geothermal fluid flows into the well via the third fracture while flow into the well via the first, second, and fourth fractures is prevented. Geothermal fluid flows into the well via the fourth fracture while flow Into the well via the first, second, and third fractures is prevented.

Abstract: A geothermal power system is configured to convert pressure energy of a geothermal fluid into electricity using a first generator, and convert heat energy of the geothermal fluid into electricity using a second generator. The first generator is coupled to a turbine, through which the geothermal fluid passes. The second generator is coupled to an expander of a binary cycle power plant. A working fluid of the binary cycle power plant is heated by the geothermal fluid before passing through the expander. The geothermal fluid is produced from a subterranean formation. In some aspects, the geothermal power system is operated such that a fracture located in the subterranean formation is maintained in an open condition.

Abstract: A system and method of using a subterranean energy storage system includes a geothermal reservoir with at least one fracture configured to hold a working fluid for a period of time. At least one wellbore is positioned within the geothermal reservoir fluidly coupled to the at least one fracture. At least one pump is configured to at least one of a) inject the working fluid into the at least one fracture and b) withdraw the working fluid from the at least one fracture. A power system is fluidly coupled to the wellbore, the power system configured to convert at least one of a) a thermal energy of the working fluid and b) a fluid dynamic energy of the working fluid into an electrical current. A downhole pressure of the working fluid held in the at least fracture for the period of time increases during the period time.

Abstract: A geopressure and geothermal power system includes at least one pressure exchanger configured to receive a production fluid and a working fluid. At least one power generation unit is fluidly coupled to the pressure exchanger. At least one production well is positioned at least partially within a geothermal reservoir and provides the production fluid to the pressure exchanger. The system may also include at least one heat exchanger fluidly coupled to the at least one pressure exchanger and configured to one of, a) receive from and b) provide to, the at least one pressure exchanger the production fluid and the working fluid.

Abstract: A system, composition and method for controlling fracture grown in the extraction of geothermal energy from an underground formation includes (i) introducing a first fracking fluid into an underground formation; (ii) introducing a second fracking fluid into the underground formation; wherein the specific gravity of the second fracking fluid is different from the specific gravity of the first fracturing fluid, thereby controlling the growth of at least one fracture in a downward direction, and wherein the fracking fluid in at least one of steps (i) or (ii) contains proppant particles having a thermal conductivity contrast of at least 5.

Abstract: A geothermal power system includes a power generation unit and at least one production well coupled to the power generation unit. The at least one production well is positioned at least partially within a geothermal reservoir. The production well includes at least one wellbore with a wellbore wall. A first tubing is positioned within the at least one wellbore and defines a first annular flow path through the first tubing. A second tubing is positioned around the first tubing and defines a second annular flow path between the first tubing and the second tubing. A third annular flow path is between the second tubing and the wellbore wall. A production fluid may flow in the same direction as a working fluid through the production well. The working fluid is used to generate electricity with the power generation unit. The working fluid may be a liquid, gas, or supercritical fluid.

Abstract: A geopressure and geothermal power system includes at least one pressure exchanger configured to receive a production fluid and a working fluid. At least one power generation unit is fluidly coupled to the pressure exchanger. At least one production well is positioned at least partially within a geothermal reservoir and provides the production fluid to the pressure exchanger. The system may also include at least one heat exchanger fluidly coupled to the at least one pressure exchanger and configured to one of, a) receive from and b) provide to, the at least one pressure exchanger the production fluid and the working fluid.

Abstract: A geothermal power system includes a power generation unit and tubing configured to be positioned within a wellbore coupled to the power generation unit. The tubing includes a first pipe with a first annular wall defining a first inner diameter and a first outer diameter. The first pipe has a first thermal conductivity. A second, pipe at least partially surrounds the first pipe. The second pipe includes a second annular wall defining a second inner diameter that is larger the first outer diameter of the first pipe. The second pipe has a second thermal conductivity. A coating applied to at least a portion of at least one of the first outer diameter of the first pipe and the second inner diameter of the second pipe has a coating thermal conductivity that is less than at least one of the first thermal conductivity and the second thermal conductivity.

Abstract: A geopressure and geothermal power system includes at least one pressure exchanger configured to receive a production fluid and a working fluid. At least one power generation unit is fluidly coupled to the pressure exchanger. At least one production well is positioned at least partially within a geothermal reservoir and provides the production fluid to the pressure exchanger. The system may also include at least one heat exchanger fluidly coupled to the at least one pressure exchanger and configured to one of, a) receive from and b) provide to, the at least one pressure exchanger the production fluid and the working fluid.

Abstract: A system, composition and method for controlling fracture grown in the extraction of geothermal energy from an underground formation includes (i) introducing a first fracking fluid into an underground formation; (ii) introducing a second fracking fluid into the underground formation; wherein the specific gravity of the second fracking fluid is different from the specific gravity of the first fracturing fluid, thereby controlling the growth of at least one fracture in a downward direction, and wherein the fracking fluid in at least one of steps (i) or (ii) contains proppant particles having a thermal conductivity contrast of at least 5.

Abstract: A geopressure and geothermal power system includes at least one pressure exchanger configured to receive a production fluid and a working fluid. At least one power generation unit is fluidly coupled to the pressure exchanger. At least one production well is positioned at least partially within a geothermal reservoir and provides the production fluid to the pressure exchanger. The system may also include at least one heat exchanger fluidly coupled to the at least one pressure exchanger and configured to one of, a) receive from and b) provide to, the at least one pressure exchanger the production fluid and the working fluid.

Abstract: A system, composition and method for controlling fracture grown in the extraction of geothermal energy from an underground formation includes (i) introducing a first fracking fluid into an underground formation; (ii) introducing a second fracking fluid into the underground formation; wherein the specific gravity of the second fracking fluid is different from the specific gravity of the first fracturing fluid, thereby controlling the growth of at least one fracture in a downward direction, and wherein the fracking fluid in at least one of steps (i) or (ii) contains proppant particles having a thermal conductivity contrast of at least 5.

Abstract: A system, composition and method for controlling fracture grown in the extraction of geothermal energy from an underground formation includes (i) introducing a first fracking fluid into an underground formation; (ii) introducing a second fracking fluid into the underground formation; wherein the specific gravity of the second fracking fluid is different from the specific gravity of the first fracturing fluid, thereby controlling the growth of at least one fracture in a downward direction, and wherein the fracking fluid in at least one of steps (i) or (ii) contains proppant particles having a thermal conductivity contrast of at least 5.

Abstract: An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes a “groove” in a surface of the box member and a corresponding “rib” on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, the rib on the pin nose moves backward until a portion of the rib contacts a portion of the groove in the box member. The point of contact between the rib and the groove creates a metal-to-metal seal between the pin and box members. Because the point of contact between the rib and the groove is a relatively small area, the force acting on the point of contact generates a high bearing pressure that is equal to or greater than the internal pressure within the expandable tubulars and, thus, generates a high pressure seal.

Abstract: An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes a “groove” in a surface of the box member and a corresponding “rib” on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, the rib on the pin nose moves backward until a portion of the rib contacts a portion of the groove in the box member. The point of contact between the rib and the groove creates a metal-to-metal seal between the pin and box members. Because the point of contact between the rib and the groove is a relatively small area, the force acting on the point of contact generates a high bearing pressure that is equal to or greater than the internal pressure within the expandable tubulars and, thus, generates a high pressure seal.

Abstract: An expandable threaded connection between segments of expandable tubulars. The present invention utilizes two complementary thread segments. The first segment of the threaded connection utilizes standard box and pin threads. In the second segment of the threaded connection, material is removed from the stab flank of the pin threads to reduce the standard width of the pin threads, while the box threads of the second segment are standard thread width. The use of the reduced thread width in the pin threads of the second segment allows for a loose fit between the pin threads of the second segment and the box threads of the second segment. The loose fit between the pin and box threads of the second segment allows radial and axial movement between those threads without causing disengagement of the threaded connection during the expansion process.