Assessment of prospective gas resources and develop a production view of eastern foldbelt (block 18), Bangladesh using Monte Carlo simulation method

Abstract

In Bangladesh, 20 gas fields out of 28 produced 709.11 billion cubic feet (Bcf) through 112 wells against a vast amount of demand in the financial year 2021–22. Therefore, more gas fields need to be explored in the most prospective offshore part of Bangladesh. In this study, we have attempted to estimate a prospecting natural gas reserve in the Eastern Fold Belt (Block 18) consisting of Teknaf, Coral Dip, and St Martin Island as well as to develop a production view for the future. Based on the prerequisite research data collected from Petrobangla, Monte Carlo simulations were used to estimate the reserve values as Gas Initially In Place (GIIP) and Recoverable Gas Initially In Place (RGIIP) by Petroleum Engineering (PE) Essential software (version 2017.4). The results show that the estimated GIIP and RGIIP are 6145.88 billion standard cubic feet (Bscf) and 4745.5 Bscf, respectively which are quite close to the previous study. The total estimated proven natural gas of the study is 2064.4 Bcf.