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Newberry EGS Demonstration: Stimulating the Existing Fracture Network Report
The Newberry Volcano EGS Demonstration in central Oregon, a 3 year project started in 2010, tests recent technological advances designed to reduce the cost of power generated by EGS in a hot, dry well (NWG 55-29) drilled in 2008. First, the stimulation pumps used were designed to run for weeks and deliver large volumes of water at moderate well-head pressure. Second, to stimulate multiple zones, AltaRock developed thermo-degradable zonal isolation materials (TZIMs) to seal off fractures in a geothermal well to stimulate secondary and tertiary fracture zones. The TZIMs degrade within weeks, resulting in an optimized injection/ production profile of the entire well. Third, the project followed a project-specific Induced Seismicity Mitigation Plan (ISMP) to evaluate, monitor for, and mitigate felt induced seismicity. Stimulation started October 17, 2012 and continued for 7 weeks, with over 41,000 m3 of water injected. Two TZIM treatments successfully shifted the depth of stimulation. Injectivity, DTS, and seismic analysis indicate that fracture permeability in well NWG 55-29 was enhanced by two orders of magnitude.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"019:20"
]
|
| contactPoint |
{
"fn": "Trenton T. Cladouhos",
"@type": "vcard:Contact",
"hasEmail": "mailto:tcladouhos@altarockenergy.com"
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| dataQuality |
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| description | The Newberry Volcano EGS Demonstration in central Oregon, a 3 year project started in 2010, tests recent technological advances designed to reduce the cost of power generated by EGS in a hot, dry well (NWG 55-29) drilled in 2008. First, the stimulation pumps used were designed to run for weeks and deliver large volumes of water at moderate well-head pressure. Second, to stimulate multiple zones, AltaRock developed thermo-degradable zonal isolation materials (TZIMs) to seal off fractures in a geothermal well to stimulate secondary and tertiary fracture zones. The TZIMs degrade within weeks, resulting in an optimized injection/ production profile of the entire well. Third, the project followed a project-specific Induced Seismicity Mitigation Plan (ISMP) to evaluate, monitor for, and mitigate felt induced seismicity. Stimulation started October 17, 2012 and continued for 7 weeks, with over 41,000 m3 of water injected. Two TZIM treatments successfully shifted the depth of stimulation. Injectivity, DTS, and seismic analysis indicate that fracture permeability in well NWG 55-29 was enhanced by two orders of magnitude. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Phase 2.1 Report.pdf",
"format": "pdf",
"accessURL": "https://gdr.openei.org/files/774/Phase%202.1%20Report_4.24.14.pdf",
"mediaType": "application/pdf",
"description": "Report detailing the findings of the Newberry EGS Demonstration Phase 2.1 which aimed to stimulate the existing fracture network."
}
]
|
| identifier | https://data.openei.org/submissions/6967 |
| issued | 2014-03-10T06:00:00Z |
| keyword |
[
"EGS",
"NEWGEN",
"demonstration",
"diverter material",
"geothermal",
"groundwater monitoring",
"hydraulic",
"microseismic monitoring",
"stimulation",
"temperature monitoring"
]
|
| landingPage | https://gdr.openei.org/submissions/774 |
| license | https://creativecommons.org/licenses/by/4.0/ |
| modified | 2024-07-09T16:56:47Z |
| programCode |
[
"019:006"
]
|
| projectLead | Lauren Boyd |
| projectNumber | EE0002777 |
| projectTitle | Newberry EGS Demonstration |
| publisher |
{
"name": "AltaRock Energy Inc",
"@type": "org:Organization"
}
|
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|
| title | Newberry EGS Demonstration: Stimulating the Existing Fracture Network Report |
