Shales are rocks with various mineralogies and complex fabric, which exhibit strong
anisotropy. The change in effective velocities due to kerogen content and pore geometry …

Processing and Analysis of PS-wave Data from a 3-D/3-C Land Survey for Fracture
Characterization Page 1 Processing and Analysis of PS-wave Data from a 3-D/3-C Land Survey …

Knowledge of the pre-existing natural fracture orientations and of the in-situ stress regime
has particular relevance for optimal well planning and completions in unconventional …

Although the shear-wave birefringence phenomenon affects the imaging of converted shear
waves, it also provides a considerable amount of information on subsurface fracture …

Principal directions for an azimuthally anisotropic medium are the directions along which the
quasi P and quasi S waves propagate as pure P and S modes. For azimuthal anisotropy …

Converted shear-wave splitting provides a practical means for evaluating azimuthal
anisotropy in hydrocarbon reservoirs that may give some insights into the internal …

The objective of this work is to determine optimum seismic technologies for detecting and
characterizing fractures in tight gas reservoirs. The project is funded by the Dept. of Energy …

An important application of 3-D converted P to S-waves (PS-waves) is to exploit S-wave
birefringence (splitting) for delineating reservoir fractures. In azimuthally anisotropic media …

P164 Constraining Fracture Geometry from Shear- wave Splitting Measurements of Passive
Seismic Data SUMMARY Page 1 71st EAGE Conference & Exhibition — Amsterdam, The …

Fracture is crucial in unconventional resource exploration for its ability in increasing rock
porosity and raising the oil/gas production. Therefore, it is very important to detect fractures …