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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 63 (1979)

Issue: 3. (March)

First Page: 414

Last Page: 414

Title: Geology and Development of Teak Oil Field, Trinidad, West Indies: ABSTRACT

Author(s): S. C. Bane, R. R. Chanpong

Article Type: Meeting abstract


The Teak oil field is located 25 mi (40 km) off the southeastern coast of Trinidad in the eastern part of the Venezuela Tertiary basin. The Teak field structure, discovered in 1968 from seismic data, is a broad asymmetric anticline located along a compressional foldbelt between the Caribbean and South American tectonic plates. It is broken by numerous transverse antithetic and synthetic normal faults which divide the producing reservoirs into many separate pools. Production is from depths of 4,000 to 14,000 ft (1,200 to 4,200 m) subsea in 17 upper Pliocene sandstones, ranging in thickness from 20 to 500 ft (6 to 150 m). The effectiveness of the faults as barriers to communication between fault blocks is demonstrated by variations in edgewater conditions, reservoir pressur s, and gas:oil ratios. At the same time, migration of oil into the Teak feature may be related to deep-seated fault conduits communicating with underlying Miocene shales.

Production from the Teak field began in 1972 and is presently in its secondary stages, including waterflooding of some oil zones. Fifty productive wells have been drilled from five platforms with an additional 3 wells recently drilled for water injection. As of June 1, 1978, the field had produced 94 billion bbl oil and 153 Bcf gas.

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Copyright 1997 American Association of Petroleum Geologists