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.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "019:20" ] |
| contactPoint |
{ "fn": "Trenton T. Cladouhos", "@type": "vcard:Contact", "hasEmail": "mailto:tcladouhos@altarockenergy.com" } |
| dataQuality |
true
|
| 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" } |
| spatial |
"{"type":"Polygon","coordinates":[[[-121.4333333,43.51666667],[-121.0333333,43.51666667],[-121.0333333,43.91666667],[-121.4333333,43.91666667],[-121.4333333,43.51666667]]]}"
|
| title | Newberry EGS Demonstration: Stimulating the Existing Fracture Network Report |
