CHARACTERIZATION OF GEOTHERMAL RESERVOIR CRACK PATTERNS USING SHEAR-WAVE SPLITTING

Authors
LOU M RIAL JA
Citation
M. Lou et Ja. Rial, CHARACTERIZATION OF GEOTHERMAL RESERVOIR CRACK PATTERNS USING SHEAR-WAVE SPLITTING, Geophysics, 62(2), 1997, pp. 487-494
Citations number
18
Categorie Soggetti
Geochemitry & Geophysics
Journal title
Geophysics → ACNP
ISSN journal
00168033
Volume
62
Issue
2
Year of publication
1997
Pages
487 - 494
Database
ISI
SICI code
0016-8033(1997)62:2<487:COGRCP>2.0.ZU;2-Y
Abstract
Microearthquakes recorded by a downhole, three-component seismic netwo rk deployed around the Coso, California, geothermal reservoir since 19 92 display distinctive shear-wave splitting and clear polarization dir ections. From the polarizations we estimated three predominant subsurf ace fracture directions, and from the time delays of the split waves w e determined tomographically the 3-D fracture density distribution in the reservoir.