VSP detection of fracture-induced velocity anisotropy
Conference
·
· AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States)
OSTI ID:6186963
A multiple S-wave polarization VSP survey using gyroscopically oriented three-component downhole recording documented azimuthal anisotropy associated with the preferential orientation of fractures within the Austin Chalk. The anisotropy is manifest in a significant velocity contrast between S-waves polarized parallel to and perpendicular to the dominant fracture orientation as determined by bore-hole televiewer data. In addition, as discussed by Becker and Perelberg in another paper, for S-waves polarized 45/sup 0/ to the principal axes of symmetry, particle motions recorded within the Austin exhibit birefringence or splitting.
- Research Organization:
- Exxon Production Research Co., Houston, TX
- OSTI ID:
- 6186963
- Report Number(s):
- CONF-870606-
- Conference Information:
- Journal Name: AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States) Journal Volume: 71:5
- Country of Publication:
- United States
- Language:
- English
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