Azimuthal anisotropy inP-wave 3-D (multiazimuth) data

• DOI: 10.1190/1.1437392
• Publication Date: 2002-10-11T18:59:43Z
• Authors: Heloise B. Lynn; K. Michele Simon; C. Richard Bates; Richard Van Dok
• Keywords: 01 natural sciences; 0105 earth and related environmental sciences

A naturally‐fractured gas reservoir in the Wind River Basin, Wyoming, is the site of a Department of Energy‐sponsored project to optimize seismic techniques for characterizing natural fractures (density, orientation). The target zone is the Lower Fort Union (LFU, depth 5400–10 000 ft, two‐way time ∼1.3–∼2 s), a low porosity, low permeability section in which fractures are necessary for commercial gas production. Flow rates incompatible with matrix porosity and permeability are observed.