Characteristics of Microseismicity in the DV11 Injection Area, Southeast Geysers, California
Conference
·
OSTI ID:838055
- LBNL Library
Microearthquake (MEQ) occurrence surrounding the injection well DV11 in Unit 18 of the Southeast (SE) Geysers is investigated. Seismicity rates are compared to the injection rate, and to flow rates in nearby steam extraction wells, which were monitored during the Unit 18 Cooperative Injection Test in 1994 and 1995. The seismicity rate is seen to mirror both injection and production rates, although a time lag sometimes occurs. Waveform cross-correlation is performed for the MEQs in the DV11 area, and the events grouped into clusters based on waveform similarity. Relative location techniques applied to the events in two of these clusters show 7 events grouped into a volume of about 25 m in diameter, at an elevation of about -0.65 km msl and 5 events grouped into a vertically-oriented linear feature about 100 m in length, at about -1.8 km msl.
- Research Organization:
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
- Sponsoring Organization:
- USDOE Assistant Secretary for Energy Efficiency and Renewable Energy. Geothermal Technologies Program (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 838055
- Report Number(s):
- LBNL--43098
- Country of Publication:
- United States
- Language:
- English
Similar Records
Microearthquake monitoring at the Southeast Geysers using a high-resolution digital array
Microearthquake monitoring at the Southeast Geysers using a high-resolution digital array
Source mechanisms of microearthquakes at the Southeast Geysers geothermal field, California
Conference
·
Sat Dec 31 23:00:00 EST 1994
·
OSTI ID:135034
Microearthquake monitoring at the Southeast Geysers using a high-resolution digital array
Conference
·
Wed Jan 25 23:00:00 EST 1995
·
OSTI ID:889357
Source mechanisms of microearthquakes at the Southeast Geysers geothermal field, California
Conference
·
Mon Dec 30 23:00:00 EST 1996
·
OSTI ID:476041