Sequence stratigraphic setting of Neogene turbidite systems, Green Canyon and Ewing Bank, northern Gulf of Mexico: Preliminary results
Conference
·
OSTI ID:80295
- Univ. of Colorado, Boulder, CO (United States)
The Neogene strata of Green Canyon and Ewing Bank lease areas in northern Gulf of Mexico are a major exploration play. Most discoveries and future exploration targets are in Neogene turbidite systems (low stand systems tracts). The regional sequence stratigraphy for this area has been interpreted to help define the potential areas for future exploration. Data base consists of 10,000 km of multifold seismic data, well log data for 100 wells, biostratigraphy from 180 wells. Existing fields and sand bodies are characterized within a sequence stratigraphic frame-work. Major sand-prone intervals directly overlie the 3.8, 3.4, 1.9, 1.4, 1.1, and 0.8 Ma sequence boundaries. A stacked condensed section occurs in the area between 3.0 to 1.9 Ma; it separates the stratigraphy into two discrete sections. Few reservoir intervals develop in this interval, because of a lack of major sand source into the basin. In general, sediments below the major condensed section were considerably sandier than those sequences younger than the condensed section. Producing sands are from turbidite systems deposited in mid-bathyal water depths in the GC 205, 184 (Jolliet) 65 (Bullwinkle), Ewing Bank 826. Reservoirs vary from massive, blocky sands to thinly laminated sands with low resistivity, and are commonly associated with seismic amplitude anomalies.
- OSTI ID:
- 80295
- Report Number(s):
- CONF-941015--
- Country of Publication:
- United States
- Language:
- English
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Conference
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Mon Dec 30 23:00:00 EST 1996
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Sun Dec 31 23:00:00 EST 1995
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OSTI ID:6860539
Sequence stratigraphic setting of turbidite-related petroleum fields, Green Canyon and Ewing Bank lease areas, northern Gulf of Mexico
Journal Article
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Thu Aug 01 00:00:00 EDT 1996
· AAPG Bulletin
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OSTI ID:421168