Geology and hydrocarbon potential of offshore Indus Basin, Pakistan
The Indus offshore basin, located in the south of the Karachi trough and Thar slope, between Murray Ridge and the Indian border (23 to 25/sup 0/N lat.; 66 to 68/sup 0/E long.) has been investigated geologically from the point of view of hydrocarbon potential. Nine wells were drilled in the area: two onshore wells (Karachi 1,2), three wells near the Karachi shore (Dabbo creek, Patiani Creek, and Korangi Creek), one well on the offshore platform (Karachi South A-1), and three wells in offshore depressions (Indus Marine A-1, B-1, and C-1). No oil or gas deposit was discovered, but gas shows and traces were recorded. However, considering the large area (7,700 mi/sup 2/; 20,000 km/sup 2/) the number of wells drilled represents an insufficient effort of exploration and drilling. Tectonically, the Indus offshore basin can be divided into three units: (1) an ofshore depression on the west, between Murray Ridge and the hinge line; (2) the offshore Karachi trough platform in the middle between the hinge and the Karachi shoreline; and (3) offshore Thar slope platform or Indus River deltaic area on the east. The hinge-line zone and the outer margin of the carbonate platform, where there is a possibility of reef buildups, seem to be potential areas for hydrocarbons, and further investigation and drilling for suitable structural traps should be pursued.
- OSTI ID:
- 6646733
- Journal Information:
- Am. Assoc. Pet. Geol., Bull.; (United States), Vol. 66:7
- Country of Publication:
- United States
- Language:
- English
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NATURAL GAS DEPOSITS
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EXPLORATORY WELLS
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PETROLEUM GEOLOGY
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