Reservoir Stimulation Optimization with Operational Monitoring for Creation of EGS

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
22 High P&T cell and system for rheology studies https://gdr.openei.org/files/258/Rheology%203-window%20cell%20%282%29.jpg
22 High P/T system schematic https://gdr.openei.org/files/258/Rheology%20high%20P%26T%20system%20%282%29.jpg
22 Rheorimeter for viscosity analysis as a function of P, T and shear rate https://gdr.openei.org/files/258/Rheometer%20system%20%282%29.jpg
22 Recycling fracturing fluid demo https://gdr.openei.org/files/258/PAA%20Recycling%20%282%29.jpg
53 Viscosity as a function of P on our proposed fracturing fluid https://gdr.openei.org/files/258/Viscosity%20Test-2_Results%20PAA%20%282%29.xlsx
53 Viscosity versus P on SDS solution https://gdr.openei.org/files/258/Viscosity%20Test-4_Results-SDS%20%282%29.xlsx
53 Viscosity versus P on xanthan solution https://gdr.openei.org/files/258/Viscosity%20Test-3_Results%20Xanthan%20%282%29.xlsx
22 Viscosity versus P on water https://gdr.openei.org/files/258/water-CO2%20control%20%282%29.jpg
36 NMR instrumentation and high P/T rotors for chemical speciation analysis of our fracturing fluid in operando https://gdr.openei.org/files/258/NMR%20capability%20and%20needs%20%282%29.pptx
36 NMR spectra showing speciation of our polymer with CO2 but limited to 150C and 130 atm https://gdr.openei.org/files/258/Final%20High%20P%26T%20PAA_NMR_rev2a%20%282%29.pptx
22 Acoustic analysis setup for in operando monitoring of fracturing processes https://gdr.openei.org/files/258/Acoustic%20emission%20setup%20%282%29.jpg
10 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. https://gdr.openei.org/files/258/Pulse%20echo%20Setup%20and%20Data%20report%203-7-13%20final%20%282%29.docx
22 High P/T fracturing system https://gdr.openei.org/files/258/Fracturing%20high%20P%26T%20system%20%282%29.jpg
22 Images of fractured rock from Coso geothermal site using our fluid technology https://gdr.openei.org/files/258/Pics%20of%20four%20Coso%20samples%20subjected%20to%207%20atm%20CO2%20pressure%20%282%29.jpg
22 Images of fractured rock from Coso geothermal site using our fluid technology https://gdr.openei.org/files/258/Pics%20of%20two%20PAA-fractured%20Coso%20samples%20subjected%20to%20KI%20seepage%20%282%29.jpg
22 Images of Ki seepage analysis on fractured rock from Coso geothermal site using our fluid technology https://gdr.openei.org/files/258/Pics%20vs%20time%20of%20PAA-fractured%20Coso%201-2%20sample%20subjected%20to%20KI%20seepage%20%282%29.jpg
10 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 https://gdr.openei.org/files/258/XMT%20summary%20of%20four%20fracturing%20experiments%20%282%29.docx
22 Demonstration of volume expansion of our fracturing fluid https://gdr.openei.org/files/258/PAA%20Rheology%20vs%20T%20and%20P%20%282%29.jpg
22 XMT image showing a 3D local fracture generated on highly crystalline rock using our fracturing fluid technology https://gdr.openei.org/files/258/XMT%20showing%20local%20fractures%20created%20by%20PAA%20on%20Coso%201-2%20%282%29.jpg

Tags

  • nmr
  • egs
  • fracturing-fluid
  • xmt
  • monitoring
  • igneous-rock
  • permeability
  • acoustic
  • rheology
  • geothermal

Topics

Categories