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Opportunities and pitfalls in surface-wave interpretation

Gerard T. Schuster, Jing Li, Kai Lu, Ahmed Metwally, Abdullah Al Theyab and Sherif Hanafy
Opportunities and pitfalls in surface-wave interpretation
Interpretation (Tulsa) (February 2017) 5 (1): T131-T141

Abstract

Many explorationists think of surface waves as the most damaging noise in land seismic data. Thus, much effort is spent in designing geophone arrays and filtering methods that attenuate these noisy events. It is now becoming apparent that surface waves can be a valuable ally in characterizing the near-surface geology. This review aims to find out how the interpreter can exploit some of the many opportunities available in surface waves recorded in land seismic data. For example, the dispersion curves associated with surface waves can be inverted to give the S-wave velocity tomogram, the common-offset gathers can reveal the presence of near-surface faults or velocity anomalies, and back-scattered surface waves can be migrated to detect the location of near-surface faults. However, the main limitation of surface waves is that they are typically sensitive to S-wave velocity variations no deeper than approximately half to one-third the dominant wavelength. For many exploration surveys, this limits the depth of investigation to be no deeper than approximately 0.5-1.0 km.


ISSN: 2324-8858
EISSN: 2324-8866
Serial Title: Interpretation (Tulsa)
Serial Volume: 5
Serial Issue: 1
Title: Opportunities and pitfalls in surface-wave interpretation
Affiliation: King Abdullah University of Science and Technology, Department of Earth Science and Engineering, Thuwal, Saudi Arabia
Pages: T131-T141
Published: 201702
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 42
Accession Number: 2017-037196
Categories: Applied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sects., sketch maps
S03°15'00" - S03°15'00", E35°30'00" - E35°30'00"
N33°46'60" - N33°46'60", W118°15'00" - W118°15'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 201721
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