Abstract:
The study area is in Bahawalnagar district of Punjab Province which falls in Central
Indus Basin, a tectonically stable area. It fell under the operatorship of Oil and Gas
Development Company Limited whose acquisition of data and processing was done and
then drilled to discover petroleum potential of Infra Cambrian reservoir rocks in 1996. Five
migrated seismic lines, two strike and three dip lines along with log suites for well named
BIJNOT-01 were obtained from Directorate General of Petroleum Concessions
(DGPC).Fort Abbas area lies under extensional tectonic regime. Because of that, normal
faults exist in our area and horst and graben structures were formed. Five horizons were
marked namely Sui Main Limestone, Parh Formation, Lower Goru Formation, Datta
Formation and Khewra Sandstone. After these horizons, faults were marked and then time
and depth contours were generated to decipher information regarding tectonic setting of
that area and to delineate the subsurface structures.Formations encountered during drilling
ranged from Pre-Cambrian to Neogene. The whole information was given in time section
which was influential in conversion of time section into depth section. These conversions
were essential for interpretation of the study area, which was one of the objectives of this
project.Petrophysical analysis from log suits of Bijnot-01 well was performed to determine
reservoir characteristics of Parh Formation and Khewra Sandstone which involved
selection of zone of interest. By log suite interpretation, volume of shale, sand and porosity
were determined.
