A method for calculating ground storage device temperatures for operating a geothermal facility with a circulation system by means of at least one geothermal heat exchanger or an energy pile with inflow and outflow lines leading to the geothermal heat exchanger or energy pile. The underground temperature in the ground storage device and/or the temperatures on the inflow and outflow lines are measured. The method includes the following steps: designing a ground storage device model (2) for converting the measured temperature variations into dynamic energy flows in the ground storage device; designing an energy flow model (3) based on statistically determined models and influencing variables relating to heat and cold; and calculating the future temperature variations (5) in the ground storage device using the energy flow model (3) and the ground storage device model (2).

A method for calculating ground storage device temperatures for operating a geothermal facility with a circulation system by means of at least one geothermal heat exchanger or an energy pile with inflow and outflow lines leading to the geothermal heat exchanger or energy pile. The underground temperature in the ground storage device and/or the temperatures on the inflow and outflow lines are measured. The method includes the following steps: designing a ground storage device model (2) for converting the measured temperature variations into dynamic energy flows in the ground storage device; designing an energy flow model (3) based on statistically determined models and influencing variables relating to heat and cold; and calculating the future temperature variations (5) in the ground storage device using the energy flow model (3) and the ground storage device model (2).

In a method, an electrical grid is monitored. Based on monitoring the electrical grid, it is determined that one or more criteria are satisfied at a first time. In response to determining that the one or more criteria are satisfied at the first time, water is moved from an aquifer located at a first elevation to a reservoir located at a second elevation. The first elevation is lower than the second elevation. The water is moved from the reservoir through a heat exchanger, and heat is transferred using the water. Subsequent to moving the water through the heat exchanger, the water is moved into the aquifer.

Systems and methods for generating and a controller for controlling generation of geothermal power in an organic Rankine cycle (ORC) operation to thereby supply electrical power to one or more of in-field operational equipment, a grid power structure, and an energy storage device. In an embodiment, during hydrocarbon production, a temperature of a flow of heated fluid from a source or working fluid may be determined. If the temperature is above a vaporous phase change threshold of the working fluid, heat exchanger valves may be opened to divert flow of heated fluid to heat exchangers to facilitate heat transfer from the flow of wellhead fluid to working fluid through the heat exchangers, thereby to cause the working fluid to change from a liquid to vapor, the vapor to cause a generator to generate electrical power via rotation of an expander.

Systems and methods for generating and a controller for controlling generation of geothermal power in an organic Rankine cycle (ORC) operation to thereby supply electrical power to one or more of in-field operational equipment, a grid power structure, and an energy storage device. In an embodiment, during hydrocarbon production, a temperature of a flow of heated fluid from a source or working fluid may be determined. If the temperature is above a vaporous phase change threshold of the working fluid, heat exchanger valves may be opened to divert flow of heated fluid to heat exchangers to facilitate heat transfer from the flow of wellhead fluid to working fluid through the heat exchangers, thereby to cause the working fluid to change from a liquid to vapor, the vapor to cause a generator to generate electrical power via rotation of an expander.

An electricity generation process is disclosed. The process comprises injecting an aqueous feed stream into a salt formation to dissolve the salt contained therein, and then extracting a saline stream containing said dissolved salt from the salt formation. The process also comprises converting latent osmotic energy present in said saline stream into electricity by passage through an osmotic power unit comprising a semi-permeable membrane which permits the passage of water but not the passage of salts in which said saline stream is passed over one side of the semi-permeable membrane, a low salinity stream being passed over the other side of said membrane. The process also comprises using an output stream derived from the low salinity stream as the aqueous feed stream.

The present disclosure relates to techniques for extracting heat energy from geothermal briny fluid. A briny fluid can be extracted from a geothermal production well and delivered to a heat exchanger. The heat exchanger can receive the briny fluid and transfer heat energy from the briny fluid to a molten salt. The molten salt can be pumped to a molten salt storage tank that can serve as energy storage. The briny fluid can be returned to a geothermal source via the production well. The briny fluid can remain in a closed-loop system, apart from the molten salt, from extraction through return to the geothermal production well.

Systems and methods for utilizing fluid produced from a geothermal source to generate electrical power and provide energy for upstream oil processing as part of a binary power generation station. Use of the geothermally-heated fluid continues in an enhanced oil recovery operation. Thermal energy of the geothermally-heated fluid heats a working fluid of a binary power generation plant to operate a turbine and to heat an oil heating medium as part of a gas-oil separation plant. The enhanced oil recovery operation may be a waterflooding operation.

A system method of geothermal energy recovery includes injecting carbon dioxide into a geothermal reservoir through an injection well, extracting a working fluid including previously injected carbon dioxide and hydrocarbons entrained in a flow of the carbon dioxide within the reservoir from an extraction well, separating components of the heated working fluid based on chemical composition, selectively mixing the separated components according to the current conditions of the extracted working fluid to produce an output modified working fluid that having a chemical composition that is optimized for energy recovery efficiency, and expanding the modified working fluid to generate mechanical or electrical energy.

Provided is a geothermal heat system having reduced heat source residual heat of a geothermal heat pump. The geothermal heat system includes a ground heat exchanger unit, a geothermal heat pump, and a residual heat storage tank. A portion of heat source residual heat remaining in the geothermal heat pump is transferred on a geothermal heat exchange medium passing through the geothermal heat pump so as to be stored in the residual heat storage tank. As the internal temperature of the residual heat storage tank gradually becomes the same as the temperature of the underground, the thermal load of the underground is removed. At least a portion of the heat source residual heat produced during provision of cooling/heating to the location of use is processed, thereby improving the operating efficiency of the geothermal heat system having reduced heat source residual heat of a geothermal heat pump.