Method for estimating shear wave reflection data from acquired compressional wave reflection data
This patent describes a method of producing shear wave reflection information estimated from compressional wave reflection information. It comprises the steps of: generating descending acoustic waves from a plurality of acoustic wave sources and receiving and recording at at plurality of receivers ascending waves produced at a subsurface interface; gathering recorded reflection waves into sets of different source-receiver offsets having a common reflection boundary; correcting gathered reflection waves from normal moveout; correcting normal moveout corrected waves for residual normal moveout; measuring amplitudes of gathered waves at given points in time for different source-receiver offset values; and determining directly from measured amplitude offset values shear wave reflection information that is equivalent to shear wave reflection information that would be obtained by direct measurement using shear waves.
- Assignee:
- Mobil Oil Corp., New York, NY
- Patent Number(s):
- US 4858202
- Application Number:
- PPN: US 7099178A
- OSTI ID:
- 5394285
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
DATA PROCESSING
EQUIPMENT
EXPLORATION
GEOLOGIC DEPOSITS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
PROCESSING
RESOURCES
SONIC LOGGING
SOUND WAVES
WAVE PROPAGATION
WELL LOGGING
WELL LOGGING EQUIPMENT