Analysis of gas transmission network of Bangladesh

Abstract

The gas transmission pipelines in Bangladesh were initially planned and constructed targeting particular bulk consumers or potential load centers. In the early stage of the development of the gas sector, the grid system was possibly not visualized. But over the years the gas transmission system has expanded considerably and has become complicated. The objective of the study is to perform gas transmission network analysis of Bangladesh. The study has been undertaken to simulate the present network system, identify its limitations and suggest remedial measures. This study would be useful to understand the performance of the present gas transmission system of Bangladesh. This study would also analyze the existing pipeline capacity and examine the level of capacity utilization. The work was completed with the help of a commercial software, PIPES 1M-Net. After pressure matching at different load centers, manifold stations and branches, different scenarios were studied for future performance prediction. Finally, the scenarios were discussed and highlighted different important points through conclusion and recommendation. The simulated results will be helpful to identify the bottlenecks and to plan for future expansion of gas transmission system. There are twenty-two gas fields in Bangladesh. But twelve producing gas fields can produce 1300 MMSCFD of gas from 53 gas wells. The study shows that Ashugonj metering station is the focal points of the National Gas Grid. Gas from the North-Eastern Gas Fields are being transported through the North-South pipeline to Ashuganj Manifold Station of GTCL from where it is further transmitted to Titas franchise area (TFA) and Bakhrabad franchise area (BFA) through Brahmaputra Basin pipe line and Ashuganj- Bakhrabad Transmission pipe lines. From Bakhrabad Gas Field, Bakhrabad-Chittagong Pipeline transports part of the required gas for Chittagong. The remaining gases for Chittagong is supplied from Salda, Meghna and Sangu gas fields.