Using Fully Coupled Hydro-Geomechanical Numerical Test Bed to Study Reservoir Stimulation with Low Hydraulic Pressure
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.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
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"019:20"
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| contactPoint |
{
"fn": "Pengcheng Fu",
"@type": "vcard:Contact",
"hasEmail": "mailto:fu4@llnl.gov"
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| description | 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. |
| distribution |
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{
"@type": "dcat:Distribution",
"title": "SGW Presentation.pdf",
"format": "pdf",
"accessURL": "https://gdr.openei.org/files/169/SGW12_Fu.pdf",
"mediaType": "application/pdf",
"description": "Presentation slides associated with the paper as presented at the 2012 Stanford Geothermal Workshop"
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{
"@type": "dcat:Distribution",
"title": "SGW Paper.pdf",
"format": "pdf",
"accessURL": "https://gdr.openei.org/files/169/SGW12_Fu_V1.pdf",
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"description": "Paper published at the 2012 Stanford Geothermal Workshop detailing the methodology."
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|
| DOI | 10.15121/1358112 |
| identifier | https://data.openei.org/submissions/6525 |
| issued | 2012-01-31T07:00:00Z |
| keyword |
[
"fracture",
"geothermal",
"hydraulic fracturing",
"hydraulic shearing",
"low pressure",
"reservoir modeling",
"reservoir stimulation",
"stimulation"
]
|
| landingPage | https://gdr.openei.org/submissions/169 |
| license | https://creativecommons.org/licenses/by/4.0/ |
| modified | 2017-05-23T21:36:27Z |
| programCode |
[
"019:006"
]
|
| projectLead | Eric Hass |
| projectNumber | AID 19979 |
| projectTitle | Stimulation of Complex Fracture Systems in Low Pressure Reservoirs for Development of Enhanced Geothermal Systems |
| publisher |
{
"name": "Lawrence Livermore National Laboratory",
"@type": "org:Organization"
}
|
| title | Using Fully Coupled Hydro-Geomechanical Numerical Test Bed to Study Reservoir Stimulation with Low Hydraulic Pressure |
