2D Structural Interpretation of Seismic Lines and Seismic Attribute Analysis of Dina Block, Eastern Potwar, Pakistan (T-1474) (MFN 5830)

Abstract

This research is based on the 2D-seismic reflection data. The data is acquired from the area of Dina, Eastern Potwar Northern Indus Basin of Pakistan. This data was provided by the LMK Resources by the prior permission of Directorate General of Petroleum Concession (DGPC). Five seismic sections having line numbers along with base map are 942-DNA-71, 942-DNA-72, 942- DNA-56, 942-DNA-66, and 962-DNA-112. Out of these five seismic lines four are the dip lines and line 942-DNA-69 is a strike line. Root mean square and interval velocities are also provided with the seismic section at selected CDP’S. Velocities are used for the calculation of average velocities to convert the given time sections into depth sections. Due to their prominent reflection on the seismic sections four reflectors were marked. The time contour structural map for each reflector had drawn and by using velocity and one way travel time depth contour map of probable reservoir had also drawn. Thrust faults are present in the area and associated popup and positive flower structures had been observed. Seismic attributes maps are generated to understand further the presence of hydrocarbon. The seismic attributes value at Chorgali Formation indicates the absence of hydrocarbon but confirms the presence of lime stone.