Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1990-01-18
1990-11-20
Lobo, Ian J.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
364421, G01V 130
Patent
active
049723847
ABSTRACT:
A compressional-to-shear wave velocity ratio is measured in a subsurface sandstone formation. Ratios of compressional-to-shear wave velocity are determined over a plurality of shear wave travel times in water-bearing sandstone and shale. The subsurface sandstone formation is identified as being hydrocarbon-bearing when the measured compressional-to-shear wave velocity ratio in the subsurface formation is less than an identified minimum of the compressional-to-shear wave velocity ratios determined for water-bearing sandstone and shale.
REFERENCES:
patent: 3332238 (1967-07-01), Caldwell
patent: 3362011 (1968-01-01), Zemanek, Jr.
patent: 4254479 (1981-03-01), Wiley
patent: 4375090 (1983-02-01), Thompson et al.
patent: 4383308 (1983-05-01), Caldwell
patent: 4422165 (1983-12-01), Thomas et al.
patent: 4516228 (1985-05-01), Zemanek, Jr.
patent: 4649525 (1987-03-01), Angona et al.
patent: 4692910 (1987-09-01), Sondergeld et al.
patent: 4779237 (1988-10-01), Bodine
patent: 4858200 (1989-08-01), Goins
"A Case Study of Stratigraphic Interpretation Using Shear and Compressional Data", Geophysics, vol. 49, #5, May '84, pp. 509-521.
"Relationships Between Compressional-Wave and Shear-Wave Velocities in Clastic Silicate Rocks", J. P . Castagna, M. L. Batzle, R. L. Eastwood, Geophysics, vol. 50, No. 4 (Apr. 1985), pp. 571-581.
"A New Method for Shear-Wave Logging", Choro Kitsunezaki, Geophysics, Oct. 1980, pp. 1487-1506.
Hager Jr. George W.
Lobo Ian J.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
LandOfFree
Method for identifying hydrocarbon-zones in subsurface formation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for identifying hydrocarbon-zones in subsurface formation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for identifying hydrocarbon-zones in subsurface formation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-459216