Abstract:
The Indus Basin is located west of the Indian Shield. In the middle part of the Indus Basin, a westward dipping monocline, the Punjab Platform is present. Fort Abbas, our area under study, is a city of Bahawalnagar District in the Punjab Province of Pakistan. Middle and Central Indus Basin is very stable tectonically. The basin is comprised of duplex structures characterized by large anticlines and domes in the passive roof of a sequence of the Suleiman fold belt. The stratigraphy of the Fort Abbas area is based on the wells drilled there including Marot-1, Bahawalpur East-1, and Fort Abbas-1. Fort Abbas-1 is drilled at 28o 58’ 31.27” N and 72o 41’ 53.52” E. The Formations encountered in the Fort Abbas well # include the Salt Range Formation, Khewra sandstone, Kussak Formation, Jutana Formation, Bhanghanwala Formation, Tobra Formation, Dandot Formation, Patala Shale, Nammal Formation, Sakesar Limestone, Ranikot Group and Siwaliks.
The study of this area is carried out to find the sub-surface geology, possible location of the petroleum and gas reservoirs and stratigraphic traps in this area. Lines under study are 931- FABS-04, 931-FABS-23, 931-FABS-24, and 921-FABS-33. The reflectors marked on seismic sections are the Cretaceous sequence, Datta Formation, and Khewra Sandstone. Infra-Cambrian is the main target in this area. Fort Abbas well # 01 by OGDCL was drilled at Paleo-hill, where no Infra-Cambrian was encountered.
