Fracture characterization from near-offset VSP inversion
Journal Article
·
· Geophysical Prospecting
- British Geological Survey, Edinburgh (United Kingdom)
- Conoco, Inc., Ponca City, OK (United States)
A global optimization method incorporating a ray-tracing scheme is used to invert observations of shear-wave splitting from two near-offset VSPs recorded at the Conoco Borehole Test Facility, Kay County, Oklahoma. Inversion results suggest that the seismic anisotropy is due to a non-vertical fracture system. This interpretation is constrained by the VSP acquisition geometry for which two sources are employed along near diametrically opposite azimuths about the well heads. A correlation is noted between the time-delay variations between the fast and slow split shear waves and the sandstone formations.
- OSTI ID:
- 438884
- Journal Information:
- Geophysical Prospecting, Journal Name: Geophysical Prospecting Journal Issue: 1 Vol. 45; ISSN GPPRAR; ISSN 0016-8025
- Country of Publication:
- United States
- Language:
- English
Similar Records
Processing of a nine-component near-offset VSP for seismic anisotropy
Fracture characterization at the Conoco Borehole Test Facility using shear-wave anisotropy
Inversion for seismic anisotropy using genetic algorithms
Journal Article
·
Fri Feb 28 23:00:00 EST 1997
· Geophysics
·
OSTI ID:483830
Fracture characterization at the Conoco Borehole Test Facility using shear-wave anisotropy
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:542871
Inversion for seismic anisotropy using genetic algorithms
Journal Article
·
Mon Oct 31 23:00:00 EST 1994
· Geophysical Prospecting; (United States)
·
OSTI ID:6917998