Geophysical interpretation of the Rashidpur structure Surma Basin,Bangladesh |
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| Authors: | Abu Sohel Shamaun Kabir Delwar Hossain |
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| Institution: | (1) Geophysical Division, Bangladesh Petroleum Exploration and Production Company Ltd.(BAPEX), 10th Floor, Shahjalal Tower, 80/A-B, Siddeshwari Circular Road, Dhaka, 1217, Bangladesh;(2) Department of Geological Sciences, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh |
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| Abstract: | The Rashidpur structure is located in the southern part of the Surma Basin, Bangladesh. This paper presents an integrated
interpretation of seismic and other geophysical data considering the available geologic information in terms of hydrocarbon
potential of this structure. The study area lies within a gravity high and a high magnetic intensity. Fifteen seismic sections
of the study area have been analyzed to interpret the subsurface geology, structure and stratigraphy. Based on the analysis
of seismic sections and correlation with well data, four prominent reflecting horizons have been identified. The litho-stratigraphy
of the Rashidpur structure is prepared on the basis of well information. The lithological sequences encountered in the Rashidpur
structure range in age from Miocene to Plio-Pliestocene. The gas producing sands of the structure are within Bokabil to Bhuban
Formations of the Miocene age. The seismic study indicates that the Rashidpur structure is a narrow, NS elongated anticline
affected by a major reverse fault on the eastern flank. It is an asymmetrical anticline with the axis swinging slightly to
the east on the northern plunge and thus attaining a slight concavity to the east. There are various geophysical indications
of hydrocarbons in this structure. |
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| Keywords: | Geophysics Rashidpur structure Surma Basin Bangladesh |
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