Abstract:
The foremost objective of this research work is to carry out petrophysical
interpretation using wells Sawan-08 and Sawan-09. The probable reservoir zones
have been marked at different depths in both the wells. Sawan-08 is divided into three
zones as zone-01(3275-3305M), zone-02(3313-3319M) and zone-03(3321-3325M).
Sawan-09 is divided into two zones as zone-01(3294-3303M) and zone-02(3306-
3309M). The dominant lithology in the reservoir is sandstone whereas some
abnormalities in GR log are also being observed which depicts the presence of
radioactive mineral (K+ions) in sandstone. Lithostartigraphic correlation is being
developed using wells Sawan-07, Sawan-08 and Sawan-09. Lithostratigraphic
correlation depicts that almost all the formations are at equal depth with a change of
few meters in the formation top. Interpolation method showed us that the zone of
interest are deposited under aggradation pattern using GR curve. The petrophysical
analysis of probable zones in Sawan-08 shows 13% average Vshl, 2.3% average
density, 10.3% effective porosity, 37% SW and 63% HS. The petrophysical analysis
of Sawan-09 shows 22% average Vshl, 2.3% average density, 11% effective porosity,
45% average SW and 55% average HS. On the basis of all these outlined
petrophysical parameters it has been determined that Sawan Field has great potential
to produce commercially viable hydrocarbons.
