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GEOREF RECORD

Automatic simultaneous multiple well ties

Andrew Munoz and Dave Hale
Automatic simultaneous multiple well ties
Geophysics (September 2015) 80 (5): IM45-IM51

Abstract

Well logs, measured in depth, must be tied to seismograms, processed in time, using a time-depth function. Well ties are commonly computed using manual techniques, and are therefore prone to human error. Manually tying multiple wells compounds errors in single well ties, and maintaining lateral consistency between multiple well ties is difficult. We introduce an automatic approach to tying multiple wells that improves consistency among well ties. We first model synthetic seismograms for each well. We then create a synthetic image by interpolating the synthetic seismograms between the wells and along seismic image structure. We use smooth dynamic image warping to align the synthetic image to the seismic image and compute updated time-depth functions for each well. We then interpolate the updated time-depth functions between the wells, and map the time-migrated seismic image to depth.


ISSN: 0016-8033
EISSN: 1942-2156
Coden: GPYSA7
Serial Title: Geophysics
Serial Volume: 80
Serial Issue: 5
Title: Automatic simultaneous multiple well ties
Affiliation: Colorado School of Mines, Golden, CO, United States
Pages: IM45-IM51
Published: 201509
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 18
Accession Number: 2015-112709
Categories: Applied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
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: 201548
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