Abstract:
The Remington structure is located in the eastern part of the Potwar Basin amI is . approximately 75 kilometers west of Islamabad and 9 kilometers north of Chak Naurang Oil Field. Its fracturcd carbonate reservoir comprises or two producing ftmllations: Chorgali and Sakesar. Chorglai is mainly composed of dolomite \vhile Sakesar is composed of limestone. The integrated study approach induced in this dissertation. involved the geological. geophysical. sedimenological, petrophysical evaluations in addition to the reserves estimation for the Remington Oil fidd. Re-cvaluatioll or the structure and stratigraphy \Vas accomplished in addition to this nev, structural and stratigraphic correlations \vere constructed. Integrating the factors for geological evaluation a new structural model was constructed for the Remington Oil Fidu. The geophysical data was re-interpreted and new depth structure maps were constructed on top of Eocene i.e. (Chorgali and Sakesar). A new time structure map was also created on top of Eocene i.e. (Chorgali). Re-interpreting the geophysical data, a new structural trap and seal was concluded for the reservoir of the Remington Oil Field. Detailed sediementological evaluations were carried out which included the creation of a new core log and the generation of petrographic analysis sheets. In addition to this. 28 thin sections were studied. Correlating the sedimentological data \vith geological data greatly enhanced and refined the findings. Using the ra\\ wireline data petrophysical parameters were studied and were utilized in the construction of property maps, which include Iso-porosity. Iso-saturation. Net pay and Gross-reservoir thickness maps. The volumetric method was lIsed 10 determine the reserves. The cumulative oil in place (OIP) determined hy the volumetric method is 28 MMSTR. The Sakesar Formation contains 8
MMSTB vvhilc the Chorgali Formation contains 20 MMSTB.
