A geothermal loop in-ground heat exchanger for energy extraction including an outer tubular casing and an inner tubular portion spaced from the outer tubular casing to define an injection space wherein a working fluid is injected into the injection space at a first temperature, T.sub.1 while the heat exchanger is located in a geothermal heat reservoir and the working fluid exits through the inner tubular portion at a second temperature, T.sub.2 which is greater than T.sub.1.

A method of constructing an injection well for a geothermal energy system comprising determining a fracture area of an injection well with a curved wellbore by inputting the curved wellbore path, a set of formation properties, and a fracturing operation, into a fracturing model. The curved wellbore path can promote fracture interference between fracture stresses extending from the injection wellbore. A production model can determine an economic value of the production fluids produced from at least one production well by determining a contact time for the injection fluids to traverse the formation. A design process can iterate the curved wellbore path of the injection well to produce a production fluid with an economic value above a threshold value.

A method of operating a thermal system implementing a ground-source heat pump includes receiving design parameters associated with a design of the thermal system and receiving one or more measurement inputs associated with a flow of a thermal fluid through a borefield of a ground heat exchanger. The method further includes, based on the measurement inputs and the design parameters, predicting one or more predicted thermal values of the thermal fluid using a forward model. The method further includes predicting one or more predicted borefield parameters of the borefield based on inverting the forward model. The method further includes monitoring the thermal system based on the predicted borefield parameters.

Systems and methods for improved geoheat harvesting enhancements are presented in which a wellbore contains a closed loop geoheat harvesting system that is thermally coupled to a hot and dry rock formation via thermal reach enhancement structures that extend from the wellbore into the formation and that are filled with a thermally conductive filler. Preferred configurations and/or operational parameters are determined by a model that calculates heat flow in a three-dimensional system considering time changes and the influence of the thermal reach enhanced intrinsic thermal conductivity of the rock.

Methods, systems, and compositions of matter for increasing heat transfer are disclosed herein. A slurry may include a quantity of a thermally conductive material configured to transfer heat. A slurry may include a quantity of a proppant configured to prop open one or more fractures. A slurry may include a quantity of a slurrying agent configured to suspend the quantity of the thermally conductive material within the quantity of the slurrying agent. The slurry is configured to preserve permeability within one or more fractures and facilitate a transfer of heat.

Methods for geothermal well planning and development are provided. This includes: installing fiber optic cables that extend within a plurality of shallow wells, wherein the fiber optic cables support both DTS measurements and DAS measurements; connecting DTS interrogators to the fiber optic cables and configuring the DTS interrogators to measure temperature profiles in the plurality of shallow wells over time; determining planned location of one or more geothermal wells that access a geothermal reservoir from the measured temperature profiles; selecting at least one shallow well to be used for DAS measurements; at each selected shallow well, disconnecting the DTS interrogator from the fiber optic cable at the shallow well and connecting a DAS interrogator to the fiber optic cable at the shallow well; and configuring the DAS interrogator at each selected shallow well to measure an acoustic profile in the selected shallow well over time.

The invention relates to a method for sizing a geothermal well for the thermal regulation of a building, including the steps of: 51: Modelling a geothermal potential of a zone of interest including a subsoil zone comprised within a given perimeter around the building; S2: Estimating the thermal requirements of the building; S3: Generating models of geothermal installations according to the results of 51 and S2, a model of a geothermal installation including one or more geothermal solutions configured to meet the requirements estimated in step S2 according to the zone of interest modelled in step 51; S4: Applying a selection criterion which is configured to determine a preferred model.

Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for using a hot sedimentary aquifer (HSA) in geothermal energy generation applications. An example embodiment operates by pumping, via multiple extraction wells, heated water from one or more extraction depths of an HSA. The HSA is identified based on a permeability satisfying a threshold permeability range. The example embodiment further operates by extracting, via a power generation unit, heat from the heated water to generate power and transform the heated water into cooled water. Subsequently, the example embodiment operates by injecting, via multiple injection wells, the cooled water at one or more injection depths of the HSA.

A process and/or simulation for providing one or more technical specifications of characteristics of a geothermal energy extraction apparatus for use with a well formed in the ground, the process comprising the steps of identifying one or more physical characteristics of the said well, modelling a plurality of output criteria according to a plurality of possible characteristics of a geothermal energy extraction apparatus and the said one or more physical characteristics of the said well, providing one or more technical specifications of characteristics of a geothermal energy extraction apparatus for use with said well.

A method of managing a well system includes: obtaining, by a digital twin manager and based on a predetermined monitoring criterion, dynamics behavior data of the well system, where the dynamics behavior data includes a plurality of measurements including an incomplete measurement that is missing data for a time interval and a complete measurement that includes data for the time interval; obtaining modeled dynamics behavior data for the well system using a physics-based model; training a physics constrained machine learning model using one or more machine learning algorithms based on the dynamics behavior data and the modeled dynamics behavior data as inputs; updating dynamics behavior data based on the physics-based model and the physics constrained machine learning model; outputting updated dynamics behavior data for the well system. The updated dynamics behavior data completes the missing data in the incomplete measurement for the time interval.