Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Patent
1985-11-12
1988-02-16
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Offshore prospecting
367 19, 367 75, 181402, G01V 138, H04R 144
Patent
active
047259906
ABSTRACT:
A marine cable for detecting converted shear waves reflected from the strata beneath a body of water in response to a compressional wave generated in the body of water. The cable comprises a jacket, a mount attached to the stress member, a geophone positioned in the mount, a first weight assembly attached to the stress member and positioned proximate a first end of the mount and a second weight assembly positioned proximate a second end of the mount. The mount is sized and made of a material so that its weight is sufficient to cause at least the portion of the cable jacket that is adjacent the mount to contact the seafloor. The first and second weight assemblies are sized and made of material so that their respective weights cause at least the portion of the cable jacket that is adjacent to the respective weight assemblies to contact the seafloor.
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Schwerg et al., "A Technique for . . . Marine Foundations", 5/8/74, O & C, vol. 1, pp. 755-762.
White et al., "Compressional to Shear Wave Conversion in Oceanic Crust", pp. 547-565, Geophs. J. R. Astr. Soc., 1980.
Moskowitz Nelson
Shell Offshore Inc.
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