Structural Interpretation Using Seismic Sections And Rock Physics Analysis Using Wire Line Data Of Ratana #1

Abstract

The Ratana Condensate and Gas Field is located in the north-western part of Potwar Basin, about 100km Southwest of Islamabad. Ratana is a large, cored thrust bounded, east-west trending pop-up structure. It is a sub-thrust play so there is total disharmony between the surface and subsurface structure. The purpose of study is to understand the subsurface structural trend and stratigraphy of the area. Seismic interpretation resulted in a time and depth contour map, which helps to understand the subsurface structure for further exploration. Rock physics analysis is also applied in the area to understand the trends of elastic parameters at the reservoir (Lockhart) formation as well as to establish the relationships of elastic parameters and velocities. The relationships between the Vp, Vs, Porosity, Density, Vp/Vs, and elastic parameters of Lockhart formation (proven reservoir) help to understand the changes in trends and reasons for these changes.