Description
EGS field projects have not sustained production at rates greater than half of what is needed for economic viability. The primary limitation that makes commercial EGS infeasible is our current inability to cost-effectively create high-permeability reservoirs from impermeable, igneous rock within the 3,000-10,000 ft depth range.
Our goal is to develop a novel fracturing fluid technology that maximizes reservoir permeability while reducing stimulation cost and environmental impact. Laboratory equipment development to advance laboratory characterization/monitoring is also a priority of this project to study and optimize the physicochemical properties of these fracturing fluids in a range of reservoir conditions. Barrier G is the primarily intended GTO barrier to be addressed as well as support addressing barriers D, E and I.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Acoustic emission setup.jpg | JPG | Acoustic analysis setup for in operando monitoring of fracturing processes | Open resource |
| Final High P&T PAA_NMR_rev2a.pptx | Powerpoint | NMR spectra showing speciation of our polymer with CO2 but limited to 150C and 130 atm | Open resource |
| Fracturing high P&T system.jpg | JPG | High P/T fracturing system | Open resource |
| NMR capability and needs.pptx | Powerpoint | NMR instrumentation and high P/T rotors for chemical speciation analysis of our fracturing fluid in operando | Open resource |
| PAA Recycling.jpg | JPG | Recycling fracturing fluid demo | Open resource |
| PAA Rheology vs T and P.jpg | JPG | Demonstration of volume expansion of our fracturing fluid | Open resource |
| Pics of four Coso samples subjected to 7 atm CO2 pressure.jpg | JPG | Images of fractured rock from Coso geothermal site using our fluid technology | Open resource |
| Pics of two PAA-fractured Coso samples subjected to KI seepage.jpg | JPG | Images of fractured rock from Coso geothermal site using our fluid technology | Open resource |
| Pics vs time of PAA-fractured Coso 1-2 sample subjected to KI seepage.jpg | JPG | Images of Ki seepage analysis on fractured rock from Coso geothermal site using our fluid technology | Open resource |
| Pulse echo Setup and Data report 3-7-13 final.docx | Doc | Report on Pulse Echo Analysis data on rock samples previous to fracturing to learn about the potential of this technique for in operando acoustic monitoring of fracturing processes. | Open resource |
| Rheology 3-window cell.jpg | JPG | High P&T cell and system for rheology studies | Open resource |
| Rheology high P&T system.jpg | JPG | High P/T system schematic | Open resource |
| Rheometer system.jpg | JPG | Rheorimeter for viscosity analysis as a function of P, T and shear rate | Open resource |
| Viscosity Test-2_Results PAA.xlsx | XLS | Viscosity as a function of P on our proposed fracturing fluid | Open resource |
| Viscosity Test-3_Results Xanthan.xlsx | XLS | Viscosity versus P on xanthan solution | Open resource |
| Viscosity Test-4_Results-SDS.xlsx | XLS | Viscosity versus P on SDS solution | Open resource |
| water-CO2 control.jpg | JPG | Viscosity versus P on water | Open resource |
| XMT showing local fractures created by PAA on Coso 1-2.jpg | JPG | XMT image showing a 3D local fracture generated on highly crystalline rock using our fracturing fluid technology | Open resource |
| XMT summary of four fracturing experiments.docx | Doc | Summary of XMT images as well as photographs of rock samples from Coso Geothermal site using our fluid technology as compared to other common fluids | Open resource |