A system and method of harvesting geothermal energy in a subterranean formation includes providing an injection wellbore that extends into the subterranean formation, positioning a plurality of selectively opening sleeves in the injection wellbore spaced apart the subterranean formation, providing at least one producing wellbore that extends into the subterranean formation in a predetermined location proximate to the injection wellbore, and fracturing the subterranean formation in a plurality of locations proximate to the plurality of selectively opening sleeves to enhance a fluid pathway between the injection wellbore and the at least one producing wellbore. Fluid is injected down the injection wellbore at a first temperature, and the fluid is produced from the at least one producing wellbore at a second temperature higher than said first temperature.

A geothermal power system is disclosed. The system comprises a downhole turbine configured to operate within a wellbore and a downhole electrical generator configured to be driven by the turbine. A channel facilitates flow of a working fluid through the turbine. The channel has a feed portion allowing the working fluid to flow in a direction away from the surface and a return portion allowing the working fluid to flow in a direction towards the surface. A surface structure is in fluid communication with the feed portion and the return portion to circulate the working fluid through the channel.

Provided here is an architectural plan (the solution) for the restoration of the terminal lake, the Salton Sea, an area of prevalent geothermal sources. It includes division of the Lake into three sections, preventing pollution of the Lake from nearby farmlands and importing seawater in central section with pipeline system; providing condition for tourism, and wildlife sanctuary; generating electricity by harnessing hydro, solar, and geothermal energy; and producing potable water and lithium as byproducts. Also includes a system and method for harnessing geothermal energy for generation of electricity by using complete closed loop heat exchange systems combined with onboard drilling apparatus. The system includes several devices operating separately in many different applications in energy sectors, Also, included is alternative use for the In-Line-Pump for marine crafts propulsion.

The present disclosure describes a system and a method for generating energy from geothermal sources. The system includes an injection well and a production well extending underground into a rock formation, a first lateral section connected to the injection well and a second lateral section connected to the production well, the first and second lateral sections connected with a multilateral connector, defining a pressure-tested downhole well loop within the rock formation and in a heat transfer arrangement therewith. The downhole well loop cased in steel and cemented in place within the rock formation. The downhole well loop to receive working fluid capable of undergoing phase change between liquid and gas within the downhole well loop as a result of heat transferred from the rock formation. The system also includes a pump to circulate working fluid, a turbine system to convert the flow of working fluid into electricity, and a cooler.

Systems and methods for providing an integrated carbon sequestration and power generation system are disclosed. The integrated carbon sequestration and power generation system may include: a thermodynamic cycle configured to receive biomass and to output heat and power; and a direct air capture system configured to receive at least some of the heat and the power output from the thermodynamic cycle. Other aspects are described and claimed.

A geothermal system for generating electrical power comprises a production well penetrating at least one reservoir, an injection well penetrating the reservoir, and a processing system. The processing system comprises a solids separator configured to receive geothermal fluid from the production well and remove a portion of solids from the geothermal fluid. The processing system further comprises a first turbine configured to reduce a pressure of the geothermal fluid. The processing system further comprises a combination heat exchanger configured to separate the geothermal fluid into a gaseous phase and a liquid phase and to transfer heat from the geothermal fluid to a secondary fluid, wherein the secondary fluid flows within an organic Rankine cycle. The processing system further comprises a vapor recovery unit configured to receive and remove gas from the liquid phase discharged from the combination heat exchanger and direct the liquid phase to the injection well for re-injection.

A coaxial circulation power generation device includes a moving medium reservoir adapted to be located in a pit formed in a heat source zone, a moving medium supply unit for supplying the moving medium to the moving medium reservoir, and a power generation unit for generating electricity from a driving force of the moving medium flowing between a low-temperature zone above and the high-temperature zone below the moving medium reservoir. The moving medium reservoir has an outer pipe connected to the moving medium supply unit and an inner pipe for circulating the moving medium, and the outer pipe and the inner pipe installed in the moving medium reservoir includes rotor blades that rotate in opposite directions with respect to a flow direction of the moving medium.

Provided is a method of constructing a geothermal heat exchanger comprised of a geothermal well(s) that maximizes heat transfer from sweet spots of geothermal energy of a geothermal reservoir to the geothermal well(s). The method involves dynamically identifying the sweet spots, and selecting a predetermined shape and/or increasing a dimension of the geothermal well(s) within the sweet spots to increase a surface area of contact between the geothermal well(s) and the sweet spots. The method further involves calculating a mathematical best fit line to minimize a distance between the geothermal well(s) and the sweet spots, and forming at least a part of the geothermal well(s) to, or to a proximity of, the sweet spots along the mathematical best fit line. Methods may include increasing an effective thermal radius of the geothermal well(s) by geothermal fracturing, geothermal acidizing, or geothermal multilateral wells, and embedding thermal energy storage (TES) materials therein.

In a geothermal plant, alternately injecting an acid composition and a caustic composition removes or inhibits scale build-up.

A controlled rate of propagation of the fluid saturation front or thermal front is desired in may oil and gas and geothermal operations. Natural fractures and fractures created during hydraulic stimulation may have heterogeneous hydraulic properties resulting in uneven flow distributions, therefore leading to short-circuiting and breakthrough issues. The present invention relates to wellbores connected hydraulically by multiple fracture zones; methods are directed to control for even flow distribution among fractures, regardless of heterogeneities in fracture hydraulic properties, and to control propagation of saturation fronts and thermal fronts in subsurface reservoirs.