Abstract:
The present study pertains to the modeling of the productive zones from the well
log data. This was carried out by using well log data of Nandpur-02 provided by the
Earth Sciences Department of Bahria University Islamabad. The Nandpur Gas field was
acquired by OGDCL. The area lies in the Middle Indus basin and the two reservoirs are
encountered during the study of well Nandpur-02. The gas, which has accumulated in
different Cretaceous and Jurassic formations, has a very high Nitrogen gas (N2) content.
In Petrophysical studies first of all Reservoir zones were identified and the petrophysical
properties including volume of shale, porosity (density, neutron, average and effective
porosities), Net-pay calculation after application of cut-off, resistivity of water, water
saturation, hydrocarbon saturation. During petrophysical interpretation different cross
plots were constructed of three zones. According to the petrophysical analysis results,
zone 1 is water saturated, while the average values of hydrocarbon saturation in zone 2 is
65% and in zone 3 is 61%. On the basis of these results it can be stated that zone 2 and 3
have good hydrocarbon potential.
