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Preliminary Analysis of Stress in the Newberry EGS Well NWG 55-29
As part of the planning for stimulation of the Newberry Volcano Enhanced Geothermal Systems (EGS) Demonstration project in Oregon, a high-resolution borehole televiewer (BHTV) log was acquired using the ALT ABI85 BHTV tool in the slightly deviated
NWG 55-29 well. The image log reveals an extensive network of fractures in a conjugate set striking approximately N-S and dipping 50 deg that are well oriented for normal slip and are consistent with surface-breaking regional normal faults in the vicinity. Similarly,
breakouts indicate a consistent minimum horizontal stress, Shmin, azimuth of 092.3 +/- 17.3 deg. In conjunction with a suite of geophysical logs, a model of the stress magnitudes constrained by the width of breakouts at depth and a model of rock strength independently indicates a predominantly normal faulting stress regime.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"019:20"
]
|
| contactPoint |
{
"fn": "Kelly Rose",
"@type": "vcard:Contact",
"hasEmail": "mailto:kelly.rose@netl.doe.gov"
}
|
| dataQuality |
true
|
| description | As part of the planning for stimulation of the Newberry Volcano Enhanced Geothermal Systems (EGS) Demonstration project in Oregon, a high-resolution borehole televiewer (BHTV) log was acquired using the ALT ABI85 BHTV tool in the slightly deviated NWG 55-29 well. The image log reveals an extensive network of fractures in a conjugate set striking approximately N-S and dipping 50 deg that are well oriented for normal slip and are consistent with surface-breaking regional normal faults in the vicinity. Similarly, breakouts indicate a consistent minimum horizontal stress, Shmin, azimuth of 092.3 +/- 17.3 deg. In conjunction with a suite of geophysical logs, a model of the stress magnitudes constrained by the width of breakouts at depth and a model of rock strength independently indicates a predominantly normal faulting stress regime. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "GRC Paper.pdf",
"format": "pdf",
"accessURL": "https://gdr.openei.org/files/737/davatzes-and-hickman-2011.pdf",
"mediaType": "application/pdf",
"description": "Preliminary Analysis of Stress in the Newberry EGS Well NWG 55-29"
}
]
|
| identifier | https://data.openei.org/submissions/6954 |
| issued | 2011-01-01T07:00:00Z |
| keyword |
[
"4D",
"EGS",
"NEWGEN",
"Newberry",
"Oregon",
"enhanced geothermal system",
"enhanced geothermal systems",
"geothermal",
"monitoring",
"publication",
"stress",
"stress analysis",
"well data"
]
|
| landingPage | https://gdr.openei.org/submissions/737 |
| license | https://creativecommons.org/licenses/by/4.0/ |
| modified | 2019-11-14T18:58:18Z |
| programCode |
[
"019:006"
]
|
| projectLead | Lauren Boyd |
| projectNumber | FY11 AOP 11113 |
| projectTitle | Novel use of 4D Monitoring Techniques to Improve Reservoir Longevity and Productivity in Enhanced Geothermal Systems |
| publisher |
{
"name": "National Energy Technology Laboratory",
"@type": "org:Organization"
}
|
| spatial |
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|
| title | Preliminary Analysis of Stress in the Newberry EGS Well NWG 55-29 |
