2D seismic interpretation of Khushalgarh area and petrophysical analysis of Jalwal-01 well (P-1084) (MFN 4000)

Abstract

seismic re-interpretation is four seismic lines 86-Kh-23, 86-Kh-24, 86-Kh-25 and 86-Kh-97 and Vertical Seismic Profile (VSP). The Khushalgarh area is related to the North Potwar deformed zone (NPDZ) as a part of active fold and thrust belt formed by the indo Eursian plate collision. The purpose of 2D seismic re-interpretation of khushalgarh block is to re-evaluate the area to estimate the potential for discovery of hydrocarbons. In this work the tops of three reflectors have been mapped by making time and depth contour maps. In the seismic sections the seismic reflector character and pattern study helped in fault interpretation and fault correlation. The interpretation results have indicated that area had a thrust/reverse faulting system formed as a result of compressional tectonics in the area. The location of the well is between 33◦ 30’ 47.94” N and 72◦ 02’ 37.29”E. the structure lies on E-W direction high. Lockhart formation deposit is theoretical prediction. The structure is of extremely complex tectonic and thus it was difficult to identify desired horizon in the available seismic sections throughout the area. In Jalwal-01 well average shale volume of Kohat Formation is 56.1%, average Effective Porosity is 7.8%, average Water Saturation is 92.74%,average Hydrocarbon Saturation is 8.16%, and average Sonic Porosity is10.34%. Due to very high saturation of water the well get dry.