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Title: Single well seismic imaging of a gas-filled hydrofracture

Technical Report ·
DOI:https://doi.org/10.2172/821042· OSTI ID:821042

A single well seismic survey was conducted at the Lost Hills, Ca oil field in a monitoring well as part of a CO2 injection test. The source was a piezoelectric seismic source and the sensors were a string of hydrophones hanging below the source. The survey was processed using standard CMP reflection seismology techniques. A potential reflection event was observed and interpreted as being caused by a near vertical hydrofracture. The radial distance between the survey well and the hydrofracture is estimated from Kirchoff migration using a velocity model derived from cross well seismic tomography. The hydrofracture location imaged after migration agrees with the location of an existing hydrofracture.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE. Assistant Secretary for Fossil Energy. Gas (US)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
821042
Report Number(s):
LBNL-53601; R&D Project: 522001; TRN: US200407%%151
Resource Relation:
Other Information: PBD: 19 Aug 2003
Country of Publication:
United States
Language:
English