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Outcrop- and Well-Based Seismic Models of a Carbonate System in Permian Basin: Implications for Seismic ChronostratigrapNormal access

Authors: H. Zeng, Y. He, C. Kerans and X. Janson
Event name: 80th EAGE Conference and Exhibition 2018
Session: Poster: Outcrop Analogue Description and Modelling
Publication date: 11 June 2018
DOI: 10.3997/2214-4609.201801585
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.88Mb )
Price: € 20

Summary:
We present an improved workflow to statistically model paramenters of geometry, facies, velocity and seismic models using outcrop, rock-plug samples, wireline logs and field seismic data. The models built in San Andres- Grayburg mixed carbonate-siliciclastic shelf margin were used to discuss chronostratigraphic meaning of seismic events at reservoir level for a mixed carbonate system. At reservoir (HFC) level, seismic interpretation of stratigraphic surfaces, lithofacies, and stacking patterns are accurate only to around λ/4 (40 m) barring from lithostratigraphic reflections, although interpretations of average trend and geometry are still useful. Well calibration is critical in reservoir modelling.


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