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Deepwater Channel Systems in the Orca and Choctaw Basins, Northern Gulf of Mexico

Treiber, Katie M
http://orcid.org/0000-0003-2475-4221
http://rave.ohiolink.edu/etdc/view?acc_num=osu1492531037059556

Abstract Details

2017, Master of Science, Ohio State University, Earth Sciences.
Turbidite channels are important conduits of clastic sediments into the deep ocean, with coarser-grained deposits creating potential reservoirs for hydrocarbons. In this study, three-dimensional seismic data and borehole logs from three industry wells were used to interpret channel systems, lithology, and overall depositional trends in the Orca and Choctaw mini-basins, located on the outer continental slope in the Gulf of Mexico in ~1645-2470 m (5400-8400 ft) of water. These mini-basins have previously been shown to have strong indications of gas hydrate in core samples and geophysical data, and the primary goal of this study was to identify coarse-grained sediments within channel systems that could serve as potential hydrocarbon reservoirs. To accomplish this, thirty-five channels were mapped in the ~2900 m (9500 ft) of sediment between the seafloor and top of salt. Channels were grouped into two broad morphological types to predict where coarse-grained sediments within each system were likely to occur. Basin depositional trends were also assessed to show how progressive salt withdrawal impacts channel occurrence by shifting topographic lows, in turn influencing where coarse-grained sediments are ultimately deposited. This research provides a detailed assessment of the turbidite channel systems in the Orca and Choctaw basins, and serves as model for future studies using seismic and well log analysis to interpret turbidite channel systems in deepwater basins.
Derek Sawyer (Advisor)
Ann Cook (Committee Member)
Mike Wilkins (Committee Member)
43 p.
Earth; Geological; Geology; Geomorphology; Geophysical; Geophysics
Seismic interpretation; Turbidite channels; Deepwater channels; Orca Basin; Choctaw Basin; geomorphology; Gulf of Mexico; Salt-withdrawal mini-basins

Recommended Citations

Citations

  • Treiber, K. M. (2017). Deepwater Channel Systems in the Orca and Choctaw Basins, Northern Gulf of Mexico [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492531037059556

    APA Style (7th edition)

  • Treiber, Katie. Deepwater Channel Systems in the Orca and Choctaw Basins, Northern Gulf of Mexico. 2017. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1492531037059556.

    MLA Style (8th edition)

  • Treiber, Katie. "Deepwater Channel Systems in the Orca and Choctaw Basins, Northern Gulf of Mexico." Master's thesis, Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492531037059556

    Chicago Manual of Style (17th edition)

osu1492531037059556
137
© 2017, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.