PETROPHYSICAL ANALYSIS OF RAJIAN-01 AND DAIWAL-01, UPPER INDUS BASIN, PAKISTAN

Abstract

For the exploration of hydrocarbons, petrophysical analysis has been done in Rajian-01 well and Daiwal-01 well in Upper Indus Basin Pakistan. In Rajian-01 and Daiwal-01 drilling has been done from Chnji Formation up to Salt Range Formation. Logging suits including caliper log, spontaneous potential log, spectral gamma ray log, computed gamma ray log, dual laterolog, microspherically focused log, neutron log, density log and sonic log have been run. Total six zones have been marked in both wells and zones are present in Chorgali formation, Sakesar limestone and Khewra sandstone, based on calculated petrophysical parameters i.e. low GR log values, high LLd values and neutron-density crossover, the marked zones in Daiwal-01 have low volume shale, low effective porosity and low hydrocarbon saturation that is why it is showing low hydrocarbon potential but in Rajian-01 the zone has low value of shale, high value of effective porosity as compared to Daiwal-01 zones and it also has high saturation of hydrocarbon i.e. 60.0%. Overall the Rajian area has more hydrocarbon potential as compared to Daiwal.