Abstract:
This dissertation contains the study of 2D seismic reflection data interpretation of selected seismic
lines of Sinjhoro Exploration Lease (E.L.), Southern Indus Basin, Pakistan, for delineation of
subsurface structures favorable for hydrocarbon accumulation. This Exploration Lease is situated in
the Sanghar district of Sindh province and is licensed to Oil and Gas Development Corporation
Limited (OGDCL). The seismic data for this dissertation was provided by the Land Mark Resources
(LMKR) by the permission of Directorate General of Petroleum Concessions (DGPC). The data
comprised four seismic lines, base map, and VSP of well Ichri – 01. The lines which were used are:
(944-SGR-229, 944-SGR-231, 944-SGR-236, 944-SGR-238).
Four prominent reflectors (green, yellow, orange and red,) were marked on the basis of their
reflection, which represent Laki Limestone, Lower Goru, Basal Sands, and Chiltan Limestone
formations respectively. Two-way time (TWT) from the seismic sections and average velocities
were used to create TWT and Depth Contour maps and 3D Time and Depth Surfaces of Basal
sands and TLG. In the end, by the examination of the maps and surface models, leads were
identified and well locations were proposed.
