Abstract
Rate transient analysis (RTA) plays a significant role in the research and development sector of petroleum industry to know about the reserves and physical properties of commercially expected hydrocarbon fluids of a petroleum field. In this research, to conduct a rate transient analysis study; reservoir properties, well properties and Production data over the year of 2007 from two gas producing wells, Well-07 and Well-10 of Habiganj gas field, Bangladesh were used. There are two gas zones in this gas field: upper gas sand (UGS) and lower gas sand (LGS). Only UGS was considered as a gas reservoir in this research work due to no producing well in LGS. Software FEKETE, F.A.S.T.RTA™ (version 4.5.1.277), IHS Inc. was used to conduct this research. The objectives of this research were to estimate gas initially in place (GIIP) and expected ultimate recovery (EUR) of Well-07 and Well-10, to determine permeability and skin surrounding each of these two producing wells. After completion of the analysis, the GIIP and EUR values of Well-07 were estimated to 435.082 billion cubic feet (Bcf) and 304.558 Bcf, and those of 475.242 Bcf and 332.67 Bcf of Well-10, respectively. Skin effect and permeability in the surrounding of each of these producing wells were amounted to 7.017 and 3.0396 millidarcy (md) for Well-07 and those of 7.014 and 2.7839 md for Well-10, respectively, by the end of the year of 2007.
Highlights
Habiganj gas field, Bangladesh, was the study area to carry out this research
The objectives of this research were to estimate gas initially in place (GIIP) and expected ultimate recovery (EUR) of Well-07 and Well-10, to determine permeability and skin surrounding each of these two producing wells
After completion of the analysis, the GIIP and EUR values of Well-07 were estimated to 435.082 billion cubic feet (Bcf) and 304.558 Bcf, and those of 475.242 Bcf and 332.67 Bcf of Well-10, respectively
Summary
Bangladesh, was the study area to carry out this research This gas field is located at Madhabpur Upazila, Habiganj District, about 100 kilo meter (km) away to the direction of northeastern from Dhaka (capital city of Bangladesh). This gas field lies about 32 km northeast of Titas gas field, the largest reserved gas field in Bangladesh. It is the third-largest gas producer in the country and operated by Bangladesh Gas Field Company Ltd (BGFCL), a subsidiary of Bangladesh Oil, Gas and Mineral Corporation (known as Petrobangla) (Imam 2005)
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