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U.S. Department of Energy
Office of Scientific and Technical Information

Dipole shear anisotropy logging

Conference ·
OSTI ID:89722
;  [1]; ;  [2];  [3]
  1. Schlumberger-Doll Research, Ridgefield, CT (United States)
  2. Amoco Production, Denver, CO (United States)
  3. GeoQuest, Aurora, CO (United States)

Sonic-scale shear anisotropy of formations are obtained from dipole-shear measurements acquired by orthogonal source and receiver pairs. These measurements resemble miniature 4-component shear VSP surveys inside the borehole. Data from two orthogonal sources and an array of orthogonal receivers are processed providing three main logs; the fast and slow shear slownesses, and the fast shear polarization angle. Potential applications include: shale anisotropy for better seismic models, maximum stress and fracture/microcrack strike direction for horizontal well drilling and fracture height and azimuth determination in hydraulic fracturing.

OSTI ID:
89722
Report Number(s):
CONF-941015--
Country of Publication:
United States
Language:
English