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Federal
Geomechanical Modeling for Thermal Spallation Drilling
Department of Energy —
Wells for Engineered Geothermal Systems (EGS) typically occur in conditions presenting significant challenges for conventional rotary and percussive drilling... -
Federal
Active Management of Integrated Geothermal-CO2 Storage Reservoirs in Sedimentary Formations
Department of Energy —
Active Management of Integrated Geothermal-CO2 Storage Reservoirs in Sedimentary Formations: An Approach to Improve Energy Recovery and Mitigate Risk: FY1 Final... -
Federal
Chlorite Dissolution Kinetics at Variable pH and Temperatures up to 275C
Department of Energy —
FY13 annual report describing the calculations and results associated with the data and dissolution rate contained in "Chlorite Kinetic Dissolution Data and Rate"... -
Federal
Chemical Impact of Elevated CO2 on Geothermal Energy Production
Department of Energy —
Numerical simulations have shown that the use of supercritical CO2 instead of water as a heat transfer fluid yields significantly greater heat extraction rates for... -
Federal
Thermal Drawdown-Induced Flow Channeling in a Single Fracture in EGS
Department of Energy —
The evolution of flow pattern along a single fracture and its effects on heat production is a fundamental problem in the assessments of engineered geothermal systems... -
Federal
Generalized Displacement Correlation Method for Estimating Stress Intensity Factors
Department of Energy —
This paper presents a generalized form of the displacement correlation method (the GDC method), which can use any linear or quadratic finite element type with... -
Federal
Thermal Drawdown Induced Flow Channeling in Fractured Geothermal Reservoirs: Rock Mechanics and Rock Engineering
Department of Energy —
We investigate the flow-channeling phenomenon caused by thermal drawdown in fractured geothermal reservoirs. A discrete fracture network-based, fully coupled thermal... -
Federal
Techno-Economic Assessment for Integrating Biosorption into Rare Earth Recovery Process
Department of Energy —
The current uncertainty in the global supply of rare earth elements (REEs) necessitates the development of novel extraction technologies that utilize a variety of REE... -
Federal
Investigation of Stimulation-Response Relationships for Complex Fracture Systems in Enhanced Geothermal Reservoirs
Department of Energy —
Hydraulic fracturing is currently the primary method for stimulating low-permeability geothermal reservoirs and creating Enhanced (or Engineered) Geothermal Systems... -
Federal
Modeling Responses of Naturally Fractured Geothermal Reservoir to Low-Pressure Stimulation
Department of Energy —
Hydraulic shearing is an appealing reservoir stimulation strategy for Enhanced Geothermal Systems. It is believed that hydro-shearing is likely to simulate a fracture... -
Federal
Grain-Scale Failure in Thermal Spallation Drilling
Department of Energy —
Geothermal power promises clean, renewable, reliable and potentially widely-available energy, but is limited by high initial capital costs. New drilling technologies... -
Federal
Active Management of Integrated Geothermal-CO2 Storage Reservoirs in Sedimentary Formations: Data used in Geosphere Journal Article
Department of Energy —
This data submission is for Phase 2 of Active Management of Integrated Geothermal-CO2 Storage Reservoirs in Sedimentary Formations, which focuses on multi-fluid (CO2... -
Federal
Fully Coupled Geomechanics and Discrete Flow Network Modeling of Hydraulic Fracturing for Geothermal Applications
Department of Energy —
The primary objective of our current research is to develop a computational test bed for evaluating borehole techniques to enhance fluid flow and heat transfer in... -
Federal
Kinetics of Chlorite Dissolution at Elevated Temperatures and CO2 Conditions
Department of Energy —
Chlorite dissolution kinetics were measured under far from equilibrium conditions using a mixed-flow reactor over temperatures of 100-275 degrees C at pH values of... -
Federal
Simulating Complex Fracture Systems in Geothermal Reservoirs Using an Explicitly Coupled Hydro-Geomechanical Model
Department of Energy —
Low permeability geothermal reservoirs can be stimulated by hydraulic fracturing to create Enhanced (or Engineered) Geothermal Systems (EGS) with higher permeability... -
Federal
Using Fully Coupled Hydro-Geomechanical Numerical Test Bed to Study Reservoir Stimulation with Low Hydraulic Pressure
Department of Energy —
This paper documents our effort to use a fully coupled hydro-geomechanical numerical test bed to study using low hydraulic pressure to stimulate geothermal reservoirs... -
Federal
Mapping Fracture Network Creation with Microseismicity During EGS Demonstrations
Department of Energy —
This a report for the project "Mapping Fracture Network Creation with Microseismicity During EGS Demonstrations". Effective enhanced geothermal systems (EGS) require... -
Federal
Simulation Tools for Modeling Thermal Spallation Drilling on Multiple Scales
Department of Energy —
Widespread adoption of geothermal energy will require access to deeply buried resources in granitic basement rocks at high temperatures and pressures. Exploiting... -
Federal
Applications of Geothermally-Produced Colloidal Silica in Reservoir Management - Smart Gels
Department of Energy —
In enhanced geothermal systems (EGS) the reservoir permeability is often enhanced or created using hydraulic fracturing. In hydraulic fracturing, high fluid pressures...