Interpretation of wireline log data for reservoir characterization of the Rashidpur Gas Field, Bengal Basin, Bangladesh

A.R.M.T Islam
2013 IOSR Journal of Applied Geology and Geophysic  
The study was embodied with quantitative analysis of petrophysical parameters of the gas zone to characterize the reservoirs in the Rashidpur well-4 of the Rashipdur Gas Field, Bangladesh. 20 permeable zones were identified in the study. Among these, 4 zones were gas-bearing and the rest zones were water. Hydrocarbon type might be gas which was positively indicated comparatively high resistivity, low neutron and low density log responses in these zones than that of the water zones. Average
more » ... zones. Average porosity of these zones ranged from 18-27 %, water saturation 17-40 %, hydrocarbon saturation 60-82 % and permeability ranged from 50.94 mD to 363 mD. Hydrocarbon is moveable in the reservoir because all the value is less than 0.70 indicate by hydrocarbon moveavility index. Average bulk volume of water ranged from 0.04 to 0.13. All the calculated values support that lithology are fine to very fine-grained sandstone and is at irreducible water saturation. The zone-4 was shown comparatively highest thickness, porosity, hydrocarbon saturation and permeability than other zones. The study can be concluded that these hydrocarbon-bearing zones are potential for gas production and good reservoir bearing formation.
doi:10.9790/0990-0144754 fatcat:d2symd75ovaw3ouzwuvcygds24