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Chapter 2: UNIQUE ACQUISITION AND PROCESSING PROBLEMS

By
H. A. K. Edelmann
H. A. K. Edelmann
*
Prakla-Seismos AG, Bucholzer Strasse 100, D3000 Hannover 51, Federal Republic of Germany.
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K. Helbig
K. Helbig
State University of Utrecht Postbus 80021, 3508 TA Utrecht, The Netherlands.
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Phil D. Anno
Phil D. Anno
*
Exploration Research and Development Division, Petroleum Research and Development Department, Conoco, Inc., Ponca City, OK.
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Robert J. Corbin
Robert J. Corbin
*
Conoco Inc., P.O. Box 1267, Ponca City, Oklahoma 74603
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David W. Bell
David W. Bell
*
Conoco Inc., P.O. Box 1267, Ponca City, Oklahoma 74603
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Stephen H. Danbom
Stephen H. Danbom
*
Conoco Inc., P.O. Box 1267, Ponca City, Oklahoma 74603
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Published:
January 01, 1986

For SH-wave recording, measures taken to suppress noise in the field usually are determined by examining characteristics of the Love waves. The relatively noise-free time window between first arrivals and surface waves, which is often used for compressional p-wave recording with surface sources, does not exist for shear-wave recording. By displaying surface-wave and reflection wavelengths from the record versus slope of the event (inverse apparent velocity) on the record, we determine which wavelengths should be suppressed by irreversible wavelength filtering (source and receiver arrays) in the field and which events should be suppressed by later velocity filtering. The effect of conventional wavelength filtering and combined wavelength and velocity filtering is illustrated in an example which shows the improvement achieved in SH-wave reflection quality.

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Contents

Geophysical Developments Series

Shear-Wave Exploration

Society of Exploration Geophysicists
Volume
1
ISBN electronic:
9781560802761
Publication date:
January 01, 1986

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