Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1991-08-12
1992-08-04
Lobo, Ian J.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
367 59, 364421, G01V 100, G01V 130
Patent
active
051365510
ABSTRACT:
An improved comprehensive system for definition of velocities of acoustic energy of sedimentary rocks is provided. First, geophysical exploration data available in the prior art is collected and organized to be defined as sequences and to define velocity behavior within sequences, and used to obtain consistently reasonable levels of accuracy of velocity distributions known by those skilled in the art. The present invention is particularly attentive to seismic sequence definition and to sequence compaction behavior. Secondly, in accordance with the present invention, means and methods not heretofore known in the art are used to sample well, seismic and other sources of data, on an individual basis, to define to what extent normal compaction behavior and velocities, as previously determined, may have been locally altered by other factors. Improved techniques to recognize several factors capable of causing abnormal post depositional behavior both at points of velocity control and elsewhere in areas of hydrocarbon prospecting interest, are intrinsic to the invention, and are important features thereof.
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