Acord 1-26 Hot, Dry Well, Roosevelt Hot Springs Hot Dry Rock Prospect, Utah

The Acord 1-26 well is a hot, dry well peripheral to the Roosevelt Hot Springs known geothermal resource area (KGRA) in southwestern Utah. The bottom-hole temperature in this 3854-m-deep well is 230C, and the thermal gradient is 54C/km. The basal 685 m, comprised of biotite monzonite and quartz schist and gneiss, is a likely hot, dry rock (HDR) prospect. The hole was drilled in a structural low within the Milford Valley graben and is separated from the Roosevelt KGRA to the east by the Opal Mound Fault and other basin faults. An interpretation of seismic data approximates the subsurface structure around the well using the lithology i n the Acord 1-26 well. The hole was drilled with a minimum of difficulty, and casing was set to 2411 m. From drilling and geophysical logs, it is deduced that the subsurface blocks of crystalline rock in the vicinity of the Acord 1-26 well are tight, dry, shallow, impermeable, and very hot. A hydraulic fracture test of the crystalline rocks below 3170 m is recommended. Various downhole tools and techniques could be tested in promising HDR regimes within the Acord 1-26 well.

Data and Resources

Metadata Source

Additional Info

Field Value
Citation Date 1983-01-01T00:00:00

Harvest Information

Original ID 90e5aa8a743c04160c055efb0282af96
Index Date 2016-03-23T18:11:10Z
Original Format ISO-USGIN
Original Version 1.2

Authors

Name Spencer S. Shannon, Jr.
Position missing
Organization Los Alamos National Laboratory
Email None
Name Jimmy J. Jacobson
Position missing
Organization MCR Geothermal Corporation
Email None
Name Roland Pettitt
Position missing
Organization Los Alamos National Laboratory
Email None
Name Fraser Goff
Position missing
Organization Los Alamos National Laboratory
Email None
Name Mark Mathews
Position missing
Organization Los Alamos National Laboratory
Email None

Geographic Extent

North Bound 38.619874861031
South Bound 38.232571007049
East Bound -112.73748781533
West Bound -113.12200929969