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Investigation of seismic attributes, depositional environments, and hydrocarbon sweet-spot distribution in the Serbin Field, Taylor Formation, southeast Texas

Osareni C. Ogiesoba, William A. Ambrose and Robert G. Loucks
Investigation of seismic attributes, depositional environments, and hydrocarbon sweet-spot distribution in the Serbin Field, Taylor Formation, southeast Texas
Interpretation (Tulsa) (February 2019) 7 (1): T49-T66

Abstract

We have conducted seismic-attribute analysis at the Serbin field - in an area straddling Lee, Fayette, and Bastrop Counties and covering approximately 56 mi (super 2) (approximately 90 km (super 2) ) - using new, reprocessed, 3D seismic data to provide additional understanding of depositional environments and better predict the distribution of hydrocarbon sweet spots. We converted the 3D seismic volume into a log-lithology volume and integrated core data to examine the distribution of lithology and interpret depositional environments. By conducting multiattribute analysis, we predicted resistivity (deep-induction log) volume and generated a resistivity map to identify hydrocarbon sweet spots. Our results show that reservoir sandstones in the Serbin field are storm-dominated, shelf-sand deposits. Although individual sandstone beds are lenticular and discontinuous, they collectively constitute a sheet-like geometry, trending northeast to southwest. On the basis of resistivity maps and rock property versus seismic-amplitude crossplots, we differentiated reservoirs in the lower Taylor Formation into two zones: (1) a northwest, high-resistivity, high-acoustic impedance zone and (2) a southeast, low-resistivity, low-acoustic impedance zone. The results also indicated that hydrocarbon sweet spots in the Serbin field are characterized by high resistivity and high impedance. Furthermore, the log-lithology method, although fast and effective, is limited because it cannot take into account sandstone zones having low acoustic impedance.


ISSN: 2324-8858
EISSN: 2324-8866
Serial Title: Interpretation (Tulsa)
Serial Volume: 7
Serial Issue: 1
Title: Investigation of seismic attributes, depositional environments, and hydrocarbon sweet-spot distribution in the Serbin Field, Taylor Formation, southeast Texas
Affiliation: Bureau of Economic Geology, Austin, TX, United States
Pages: T49-T66
Published: 201902
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 20
Accession Number: 2019-009252
Categories: Economic geology, geology of energy sourcesApplied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Technical papers
Illustration Description: illus. incl. chart, sects., strat. col., geol. sketch maps
N29°45'00" - N30°25'00", W97°40'00" - W96°55'00"
N30°03'00" - N30°34'60", W97°19'60" - W96°37'60"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 201907
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