Seismic surveying technique for the detection of azimuthal variations in the earth's subsurface

Patent · Tue Mar 28 04:00:00 EST 1989

OSTI ID:6086632

Alford, R M; Lynn, H B; Thomsen, L A

A method is described for surveying the earth's subsurface formations to determine azimuthal variations in the earth's subsurface comprising the steps of: imparting shear wave seismic energy into the earth with a first seismic source polarized in a first direction along a first seismic line of profile; recording the reflected shear wave seismic energy with a first geophone having a polarization matching the polarization of the first seismic source to produce a first shear wave record; imparting shear wave seismic energy into the earth with a second seismic source polarized in a second direction along a second seismic line of profile; recording the reflected shear wave seismic energy with a second geophone having a polarization matching the polarization of the second seismic source to produce a second shear wave record; processing the first and second shear wave records to produce a first and second shear wave section; and comparing the first and second shear wave seismic sections to determine azimuthal variations in the earth's subsurface.

• Assignee: Amoco Corp., Chicago, IL
• Patent Number(s): US 4817061
• OSTI ID: 6086632
• Country of Publication: United States
• Language: English

Related Subjects

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DATA ACQUISITION SYSTEMS
DATA PROCESSING
EXPLORATION
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
GEOPHYSICS
MINERAL RESOURCES
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ORIENTATION
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PROCESSING
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SEISMIC SURVEYS
SEISMIC WAVES
SHEAR
SURVEYS