Reefal petroleum prospects possible in Pakistan
Carbonate buildups including reefs and banks have proven to be prolific hydrocarbon reservoirs in the US, Canada, Mexico, North Africa, Southeast Asia, and the Middle East. Seismic interpretation, particularly of high quality marine data, and geological analyses, including petrographic studies of selected formations, reveal a broad spectrum of possible reefal prospects in formations of different ages in Pakistan. However, the region with good seismic that provides good recognition of possible reefal buildups remains to date devoid of well confirmation. Oil and Gas Development Corp. of Pakistan formed the technical services department in 1976 for a systematic scientific review of all exploration data and basin analysis. In 1985 this department was renamed offshore department, with responsibility for all offshore exploration. This article is based on the department`s work in collaboration with geoscientists from Russia, the US, Norway, and Canada covering the area shown. Four major types of carbonate buildups, easily recognized from seismic interpretation, include: barrier buildups that are linear with relatively deep water on both sides during deposition; pinnacle buildups that are roughly equidimensional and were surrounded by deep water during deposition; shelf margin buildups that are linear with deep water on one side and shallow water on the other; and patch buildups that form in shallow water either in close proximity to shelf margins, or over broad shallow seas.
- OSTI ID:
- 211902
- Journal Information:
- Oil and Gas Journal, Vol. 94, Issue 13; Other Information: PBD: 25 Mar 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Stratigraphy and depositional environments of the Paleogene of the Potwar Plateau, northern Pakistan
3-D seismic facies analysis of a reefal buildup, offshore North Sumatra