U.S. Department of EnergyOffice of Scientific and Technical Information
Using Fully Coupled Hydro-Geomechanical Numerical Test Bed to Study Reservoir Stimulation with Low Hydraulic Pressure
Abstract
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 with existing fracture network. In this low pressure stimulation strategy, fluid pressure is lower than the minimum in situ compressive stress, so the fractures are not completely open but permeability improvement can be achieved through shear dilation. We found that in this low pressure regime, the coupling between the fluid phase and the rock solid phase becomes very simple, and the numerical model can achieve a low computational cost. Using this modified model, we study the behavior of a single fracture and a random fracture network.
- Authors:
-
- Lawrence Livermore National Laboratory
- Publication Date:
- Other Number(s):
- 169
- Research Org.:
- DOE Geothermal Data Repository; Lawrence Livermore National Laboratory
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Program (EE-2C)
- Subject:
- 15 GEOTHERMAL ENERGY; fracture; geothermal; hydraulic fracturing; hydraulic shearing; low pressure; reservoir modeling; reservoir stimulation; stimulation
- OSTI Identifier:
- 1358112
- DOI:
- https://doi.org/10.15121/1358112
Citation Formats
Fu, Pengcheng, Johnson, Scott M., and Carrigan, Charles R. Using Fully Coupled Hydro-Geomechanical Numerical Test Bed to Study Reservoir Stimulation with Low Hydraulic Pressure. United States: N. p., 2012.
Web. doi:10.15121/1358112.
Fu, Pengcheng, Johnson, Scott M., & Carrigan, Charles R. Using Fully Coupled Hydro-Geomechanical Numerical Test Bed to Study Reservoir Stimulation with Low Hydraulic Pressure. United States. doi:https://doi.org/10.15121/1358112
Fu, Pengcheng, Johnson, Scott M., and Carrigan, Charles R. 2012.
"Using Fully Coupled Hydro-Geomechanical Numerical Test Bed to Study Reservoir Stimulation with Low Hydraulic Pressure". United States. doi:https://doi.org/10.15121/1358112. https://www.osti.gov/servlets/purl/1358112. Pub date:Tue Jan 31 04:00:00 UTC 2012
@article{osti_1358112,
title = {Using Fully Coupled Hydro-Geomechanical Numerical Test Bed to Study Reservoir Stimulation with Low Hydraulic Pressure},
author = {Fu, Pengcheng and Johnson, Scott M. and Carrigan, Charles R.},
abstractNote = {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 with existing fracture network. In this low pressure stimulation strategy, fluid pressure is lower than the minimum in situ compressive stress, so the fractures are not completely open but permeability improvement can be achieved through shear dilation. We found that in this low pressure regime, the coupling between the fluid phase and the rock solid phase becomes very simple, and the numerical model can achieve a low computational cost. Using this modified model, we study the behavior of a single fracture and a random fracture network.},
doi = {10.15121/1358112},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {1}
}
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