Hydrocarbon Accumulation Analysis by Reconstructing the Canyon-Fill Sequence using Seismic Stratigraphic Interpretation in the Central Gulf Coastal Plain of Texas

Abstract

The Texas Gulf region has been extensively studied and explored due to its high volume of oil and gas accumulation. One of the most highly productive sequences in the region is the lower Wilcox Group, which was deposited during a gradually sea level rising. The high rate of Tertiary sedimentary source influx and repeatedly transgression and regression resulted in numerous reservoirs and ideal traps. Regression caused the development of incised canyon systems, and later the canyon was filled with marine shales during the transgression. The complex canyon-fill sequence makes petroleum accumulation possible. Both stratigraphic and structural trapping mechanisms are found in the study area. The stratigraphy of the Wilcox Group is divided based on the lithological data and electric logs. In order to investigate the lateral variations of erosional sequences and the distributions of thin-bed sand bodies, we correlate the well logging across the survey. The seismic sequences and related sandstones are identified on the seismic sections after the well-to-seismic tie. Finally, the complex canyon-fill system is rebuilt and the hydrocarbon accumulation pattern is analyzed by conducting seismic stratigraphic interpretation in the study area.

Meeting Name

Society of Exploration Geophysicists International Exposition and Annual Meeting 2019, SEG 2019 (2019: Sep. 15-20, San Antonio, TX)

Department(s)

Geosciences and Geological and Petroleum Engineering

Research Center/Lab(s)

Center for High Performance Computing Research

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2020 Society of Exploration Geophysicists (SEG), All rights reserved.

Publication Date

01 Sep 2020

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