Seismic evidence for a long-lived Enhanced Geothermal System (EGS) in the Northern Geysers reservoir

Transactions - Geothermal Resources Council

Volumn 27, Issue , 2003, Pages 727-731

  Stark, Mitch ^a  

^a Calpine Corporation   (United States)

Author keywords

Earthquakes; Enhanced geothermal; Geysers; Injection; Seismic

Indexed keywords

ENHANCED GEOTHERMAL SYSTEMS (EGS); INJECTION WELLS; MICROEARTHQUAKES (MEQ); NON-CONDENSIBLE GASES (NCG);

EARTHQUAKES; GEOTHERMAL FIELDS; GEOTHERMAL WELLS; HIGH TEMPERATURE EFFECTS; PRESSURE EFFECTS; SEISMOLOGY; WELL DRILLING;

GEOTHERMAL PROSPECTING;

EID: 4143059056     PISSN: 01935933     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (19)

1. Beall, J.J., M.A. Stark, J.L. Smith, and A. Kirkpatrick, 1999, "Microearthquakes in the SE Geysers before and after SEGEP injection", GRC Trans. 23, 253-257.
2. Brauner, E. and D. Carlson, 2003, "Santa Rosa Geysers Recharge Project GEO-98-001", final report to California Energy Commission, on-line at http://www.energy.ca.gov/reports/2003-03-01_500-02-078V1.PDF.
3. Eberhart-Phillips, D. and D.H. Oppenheimer, 1984, "Induced seismicity in The Geysers geothermal area, California", J. Geophys. Res. 89, 1191-1207.
4. Enedy, S., 1999, "Response after 1-1/2 Years of increased SEGEP injection", US DOE Geysers Injection Workshop, San Francisco, CA, May 17, 1999.
5. Gambill, D.T., 1992, "The recovery of injected water as steam at the Geysers", in Stone, C. (ed), Monograph on the Geysers Geothermal Field, GRC Sp. Report No. 17, 159-163.
6. Goyal, K. P., 1999, "Injection experience in The Geysers, California - A Summary", Geothermal Resources Council Transactions, Volume 23, pages 541-547.
7. Ludwin, R.S. and C.G. Bufe, 1980, "Continued seismic monitoring of the Geysers, California, geothermal area", USGS open-file report 80-1060, 50 p.
8. Mossop, A., 1998, unpublished work on mechanisms of Geysers injection-induced seismicity, available at Stanford University c/o Dr. Paul Segall.
9. Nielson, D. L.; Garg, S.; Koenig, B.; Truesdell, A.; Walters, M. A.; Stark, M.; Box, W. T., Jr.; Beall, J.J., 2001, "Concept for an enhanced geothermal reservoir at The Geysers", Geothermal Resources Council Transactions, Volume 25, Pages 191-194.
10. Powell, T.S., J. Moore and W.B. Cumming, 2002, "Conceptual models of Karaha-Telaga Bodas and The Geysers", Geothermal Resources Council Transactions, Volume 26, p. 369 - 373.
11. Romero Jr., A.E., T.V. McEvilly, and E.L. Majer, 1997, "3-D microearthquake attenuation tomography at the Northwest Geysers geothermal region, California", Geophysics 62, 149-167.
12. Shook, G.M., 1995, "Development of a vapor-dominated reservoir with a 'high-temperature' component", Geothermics 24, 489-505.
13. Smith, J.L., J.J. Beall and M. Stark, 2000, "Induced seismicity in the SE Geysers field, California, USA", Proc. World Geothermal Congress, Japan, 2887-2892.
14. Stark, M. A., 1992, "Microearthquakes - a tool to track injected water in The Geysers reservoir", in Stone, C. (ed) Monograph on The Geysers geothermal field, GRC Sp. Report 17, 111-117.
15. Sternfeld, J.N., 1989, "Lithologic influences on fracture permeability and the distribution of steam in the northwest Geysers steam field, Sonoma County, California", GRC Trans. v. 13, p. 473-379.
16. Truesdell, A.H., 1991, "The origin of high-temperature zones in vapor-dominated geothermal systems", Proc. 16th Workshop on Geothermal Reservoir Engineering, Stanford Univ. Jan. 23-25, 15-20.
17. Walters, M. A., Haizlip, J. R., Sternfeld, J. N., Drenick, A. F., and Combs, J., 1992, "A vapor-dominated high-temperature reservoir at The Geysers California", GRC Sp. Report 17, 77-87.
18. Walters, M.A. and J.J. Beall, 2002, "Influence of meteoric water flushing on noncondensible gas and whole-rock isotope distributions in the Northwest Geysers", Geothermal Resources Council Transactions v. 26, pages 379-383.
19. Williams, C. F., S.P. Galanis, T.H. Moses and F.V. Grubb, 1993, "Heat-flow studies in the Northwest Geysers geothermal field, California", Geothermal Resources Council Transactions, v. 17, pages 281-288.