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Full-waveform inversion as a game changer; are we there yet?

Fabio Mancini, Kenton Prindle, Tom Ridsdill-Smith and Jenny Moss
Full-waveform inversion as a game changer; are we there yet?
Leading Edge (Tulsa, OK) (May 2016) 35 (5): 445-451

Abstract

Full-waveform inversion (FWI) has the potential to be a game changer for the seismic industry since it produces accurate velocity models at a resolution that cannot be matched by conventional traveltime tomography, with the additional advantage that it runs on basically raw data. Today, these two features should be better exploited to maximize the business value that FWI can deliver to an oil and gas operator. Provided that we acquire adequate data sets, FWI can be run starting from a smooth velocity model so that traveltime tomography is completely bypassed. As very little processing is required, FWI can be executed in parallel with the main preprocessing efforts, with the results of shortening considerably the overall project turnaround. For imaging purposes, FWI can be limited to the low-frequency range ( approximately 10 Hz) but if run in the high-frequency range ( approximately 30 Hz), FWI velocities have such a resolution that they can be used directly for interpretation. In particular, applications in the field of pore-pressure prediction and shallow hazard have great potential. In the current implementation, the main limitations are linked to data quality and computational power, but both these issues can be adequately addressed.


ISSN: 1070-485X
EISSN: 1938-3789
Serial Title: Leading Edge (Tulsa, OK)
Serial Volume: 35
Serial Issue: 5
Title: Full-waveform inversion as a game changer; are we there yet?
Affiliation: Woodside Energy, Perth, West. Aust., Australia
Pages: 445-451
Published: 201605
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 14
Accession Number: 2016-076747
Categories: Economic geology, geology of energy sourcesApplied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
S60°00'00" - N25°00'00", E20°00'00" - E147°00'00"
S35°00'00" - S14°00'00", E113°00'00" - E129°00'00"
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: 201637
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