Abstract:
The purposes of this dissertation are to the study and interpret 2D
seismic reflection data of selected seismic lines from Tajjal Area, Kadanwari
Block, Lower Indus Basin, Pakistan. Our main objective was to evaluate leads
and prospects in the Kadanwari Gas Field, Sindh Pakistan. This has been done by
subsurface mapping using seismic data and its incorporation with the well data.
Four seismic lines namely TJ 89 – 520 (dip line), TJ 89 – 524 (dip line), TJ 90 –
608 (Dip line), TJ 91 – 803 (strike line) along with Gorwar-01 well were utilized
for this purpose. Methodology adopted to achieve this task includes; structural
interpretation on all the seismic lines with the help of well data. Time and Depth
contour mapping, Identification of potential leads at Sui Main Limestone and
Lower Goru. In this study, two stratigraphic horizons have been marked named
Top Sui Main Limestone, Top Lower Goru Formation. Top two reflectors shows
gentle dipping to the eastern side while others are relatively flat and disturbed by
structural event. The petrophysical analysis was also done to fine out the zone
which can have potential to act as reservoir. Study area lies in extensional regime
where horst and graben structures are associated; which create negative flower
structures in the area.
