--> Abstract: Model-Based Depositional Framework of Northern Part of Punjab Platform, Pakistan, by Shazia Asim, Shahid N. Qureshi, M. Gulraiz Akhtar, and Farrukh Qayyum; #90077 (2008)

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Model-Based Depositional Framework of Northern Part of Punjab Platform, Pakistan

Shazia Asim1*, Shahid N. Qureshi1, M. Gulraiz Akhtar1, and Farrukh Qayyum2
1Quaid-i-Azam University, Pakistan
2Schlumberger, Pakistan
*[email protected]

The Punjab Platform depicts several geological variations due to changes in eustatic controls. In the past decades the eustatic variations and associated depositional trends in the Punjab Platform have not yet been considered and modeled collectively. With the help of seismic profiles, seismic Atlas 1998, well data, final well reports and cross section, the basin subsidence rate, relative rise and fall of sea level and sedimentation rate are combined with the study of basin tectonics (subsidence and uplift) and Indian Plate orientation. By considering these parameters, the study area has been classified into four zones: from east to west as zone A, B, C and D respectively. These zones reflect the depositional history associated with basin tectonics, burial history and their significance for future petroleum prospect. Within each zone, the shale acts as a primary source rock for eastern sandy facies of Paleozoic and Mesozoic ages. The relative rise and fall in sea level along with basin burial history describe the presence of heavy oil at 1 to 2 km depths in the eastern part and light oil (2–5 km) in the western down warps. Moreover, three-dimensional models for the basement and overlying strata are also prepared to show the present-day situation.

 

AAPG Search and Discovery Article #90077©2008 GEO 2008 Middle East Conference and Exhibition, Manama, Bahrain