Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1987-06-08
1989-01-10
Tarcza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 32, 367 75, G01V 140
Patent
active
047978597
ABSTRACT:
A method for determining the fluid mobility or permeability of subsurface formations using borehole measurements of the tube wave. The slowness of an hypothetical tube wave travelling in an elastic, nonpermeable medium is computed based on various measured parameters such as the formation matrix density, fluid density and fluid acoustic slowness. This elastic model slowness is subtracted from the measured tube wave slowness of a selected formation traversed by the borehole, and the difference is used to determine the formation permeability.
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Biot, "Propagation of Elastic Waves in a Cylindrical Bore Containing a Fluid", Journal of Applied Physics, vol. 23, No. 9, 1952.
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Lee Peter Y.
Lobo Ian J.
Schlumberger Technology Corporation
Smith Keith
Tarcza Thomas H.
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