Abstract
Publicly available seismic and well data are used to study the subsurface structure and stratigraphy of an area on the southern margin of the Central Indus Basin (CIB), Pakistan. Study area includes southern parts of the Punjab Platform and Sulaiman Foredeep tectonic units of the CIB. A regional scale East-West depth cross-section is prepared in South of hydrocarbon bearing Safed Koh Trend to Punjab Platform. It gives the structural configuration of various formations of Paleozoic-Cenozoic times. Reflectors are marked and correlated with the help of wells Drigri-01 and Bahawalpur East-01, located on seismic lines 914-RPR-03 and 916-YZM-05 respectively. These reflectors/formations are correlated with respect to ages to avoid the confusions as there are many truncations in the area. Average velocities are used for the depth computation. Depth cross-section (AB) shows that Punjab Monocline is a stable area with a shallow basement. In Punjab Platform all the formations dip gently to the West. Then they attain steep dips in the Sulaiman Foredeep/Depression area. Depth cross-section along the Drigri anticline which lies in the SE of Sakhi Sarwar anticline reveals that it is extended E-W over 17 km approx. and the reverse faults are present on both flanks of a fold, due to that a pop up structure is formed. It’s a low amplitude fold, as it marks the southern end of Safed Koh Trend (first line of folding of the folded flank of Sub-Sulaiman Fore Deep). Subsurface structural variations at Bahawalpur show a buried high of Jurassic-Permian age. A sedimentary cover is 9 km thick in West and 3 m thick in East. Basement is uplifted at Bahawalpur High.
Highlights
The study area comprises of frontal fault propagation folded zone of Sulaiman Range, Sulaiman Depression and Punjab Monocline of Pakistan (Figure 1 & Figure 2)
Bahawalpur East-01 well is located at SP-300 on seismic line 916-YZM-05
The northern most and western regions of Pakistan fall in Tethyan Domain, which have complicated geology and complex crustal structure, While the Indus Basin consists of the gondwanian domain [1]
Summary
The study area comprises of frontal fault propagation folded zone of Sulaiman Range, Sulaiman Depression and Punjab Monocline of Pakistan (Figure 1 & Figure 2). It is bounded by longitude (70 ̊06''E - 72 ̊16''E) and latitude (29 ̊17''N - 29 ̊23''N). Seismic profiles from West to East are 914-RPR-03, 954-FZP-09, C95-LMT-05, W16-AT, B-01, PSPD-5085, PSPD-5340 and 916-YZM-05. A seismic line 914-RPR-03 lies in the NW of Rajanpur area of District D. G. Khan, with a Drigri-01 & Kotrum-01 wells located at SP-270 and South of profile respectively. Bahawalpur East-01 well is located at SP-300 on seismic line 916-YZM-05. An East-West depth cross-section AB shows the Figure 1.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
