Analysis of subsurface structural trend and stratigraphic architecture using 2D seismic data: a case study from Bannu Basin, Pakistan

Author:

Ishaq Kashif,Wahid Sohail,Yaseen MuhammadORCID,Hanif Muhammad,Ali Shehzad,Ahmad Jawad,Mehmood Mubashir

Abstract

AbstractThe present study is focused on the subsurface geology of Bannu Basin, a part of western Indus foreland Pakistan. For this purpose, some regional seismic profiles and deep exploratory wells data have been used in integration.A total of ten mappabale seismic reflection events have been identifed which are representative of specific geological units. In general, based on the seismic the formation trends, the horizons are dipping in the northwest direction of the study area. The area generally deepens toward the northwest due to sediments load toward the northwest. The seismic profile MWI-83 shows a unique faults bounded anticlinal structure that has also been mapped on the two-dimmensional contour maps. This could be regarded as potential hydrocarbon entrapment. The regional seismic profiles are contoured for the entire grid in both time and depth domain to obtain the clearer image of the subsurface individual stratigraphic units. The 2D contour maps for Lower Permian aged Warcha Sandstone, Middle Triassic aged Tredian Formation and Early Jurrasic aged Datta Formation have been prepared using gridded TWT of the seismic profiles. The time and depth contour maps of the Datta Formation and Tredian Formation show a four way clouser oriented in the southeast dierction. The area of the closure was computed which is 24 Sq km approximately. Furthermore, the formation tops of the five wells have been used to correlate the wells for understanding the lateral and vertical variations in the stratigraphic layers. The correlation shows that the Datta Formation’s thickness increases at the centre of the basin whereas decreases on the east and south flanks of the basin. Reasons of Wells failure were concluded on the basis of the final well report and concluded that these well failure occur due to poor quality of the data and also due to some mechanical problems. Reservoircharacterization using statistical rock physics and petrophysics coupled with core data analysis can provide further insights into the hydrocarbon exploration.

Publisher

Springer Science and Business Media LLC

Subject

General Energy,Geotechnical Engineering and Engineering Geology

Reference15 articles.

1. Abir IA, Khan SD, Aziz GM, Tariq S (2017) Bannu Basin, fold-and-thrust belt of northern Pakistan: Subsurface imaging and its implications for hydrocarbon exploration. Mar Pet Geol 85:242–258

2. Alam I, Ahmad S Sr, Ali F, Khan MW (2015) Architecture of fold-thrust assemblages in the Marwat-Khisor ranges of the outer Himalayan Orogenic Belt of Pakistan. J Himalayan Earth Sci 44:56–66

3. Alam I, Azhar AM, Khan MW (2014) Frontal structural style of the Khisor range, northwest of Bilot: implications for hydrocarbon potential of the north-western Punjab fore deep. Pakistan J Himalayan Earth Sci 47(1):102–108

4. Burbank DW, Raynolds RG (1888) Stratigraphic keys to the timing of thrusting in terrestrial foreland basins: applications to the northwestern Himalaya. In: New perspectives in basin analysis. Springer, New York, pp 331–351.

5. Danilchik W, Shah SMI (1967) Stratigraphic nomenclature of formations in TransIndus Mountains Mianwali District, West Pakistan. US. Geological Survey Project Report, pp 33–45.

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