2-D Seismic interpretation of Sukkur, Sindh Central Indus Basin

Abstract

This dissertation is based on the 2D-seismic reflection data. The data is acquired from the area of Sukkur (Sindh), of Pakistan and provided by the LMK Resources by the permission of Directorate General of Petroleum Concession (DGPC). The seismic sections having line numbers P2291-10,P2291-13 and P2291-19, Out of these 3 lines, 2 lines (P2291-10,p2291-13) are dip lines shot in east-west. The remaining line (P2291-19) is strike line shot in North-south direction that was acquired between November 1991 to December 1991.Root mean square and interval velocities are also computed during processing are also provided with the seismic section at selected CDP'S and are used for the calculation of average velocities to convert the given time into depth. The seismic section is recorded for 5 sec of each. Six reflectors: R1, R2, R3, R4, R5 are marked due to their prominent reflection on the seismic section. The depth of each reflector is found by using velocity and one-way travel time. Velocity trend along individual lines as well as on regional scale have been observed. Normal faulting exists in the area and associated Horst and Graben structures are observed along with Flower Structures and step faults.