Ministry of Power, Energy and Mineral Resources The People’s Republic of Bangladesh Preparatory Survey on The Natural Gas Efficiency Project in The People’s Republic of Bangladesh FINAL REPORT APPENDIX (1/2) March 2014 JAPAN INTERNATIONAL COOPERATION AGENCY ORIENTAL CONSULTANTS CO., LTD. IL JR 14-070 Ministry of Power, Energy and Mineral Resources The People’s Republic of Bangladesh Preparatory Survey on The Natural Gas Efficiency Project in The People’s Republic of Bangladesh FINAL REPORT APPENDIX (1/2) March 2014 JAPAN INTERNATIONAL COOPERATION AGENCY ORIENTAL CONSULTANTS CO., LTD. Appendices Table of Contents Page Appendix 1. Pipeline Network Analysis ....................................................................... App 1-1 Appendix 2. Terms of Reference (TOR) of Engineering Consultancy Services for the Project of Installation of Compressors at Narsingdi and Titas Location C Gas Fields - BGFCL ................................................................................. App 2-1 Appendix 3. Terms of Reference (TOR) of Engineering Consultancy Services for the DHANUA- ELENGA and WEST BANK of JAMUNA Bridge - NALKA Pipeline Project - GTCL ........................................................................... App 3-1 Appendix 4. Terms of Reference (TOR) of Engineering Consultancy Services for the Project of Installation of Pre-paid Gas Meters in Dhaka Metropolitan Area - TGTDCL ....................................................................................... App 4-1 Appendix 5. Terms of Reference (TOR) of Engineering Consultancy Services for the Project of Installation of Pre-paid Gas Meters in Chittagong Area - KGDCL .................................................................................................... App 5-1 Appendix 6. Environmental Impact Mitigation/Management Plan for BGFCL Compressor Projects ................................................................................. App 6-1 Appendix 7. Draft Environmental Monitoring Form for Gas Compressor System (Narsingdi and Titas-Location C Gas Fields) - BGFCL ........................... App 7-1 Appendix 8. Environmental Checklist for Gas Compressor System (Narsingdi and Titas-Location C Gas Fields) - BGFCL .................................................... App 8-1 Appendix 9. Preparatory Survey on the Natural Gas Efficiency Project in the Peoples Republic of Bangladesh Terms of Reference (TOR) for EIA and/or Arap Update Study on Selected Gas Transmission Pipeline Project (GTCL) ... App 9-1 Appendix 10. Environmental Impact Mitigation/Management Plan for Dhanua-Elenga Project ..................................................................................................... App 10-1 Appendix 11. Environmental Impact Mitigation/Management Plan (West Bank of Jamuna Bridge-Nalka) ............................................................................ App 11-1 Appendix 12. Draft Environmental Monitoring Form for Gas Transmission Pipeline Project (Dhanua - Elenga) - GTCL ......................................................... App 12-1 i Appendix 13. Draft Environmental Monitoring Form for Transmission Pipeline Project (West Bank of Jamuna Bridge - Nalka) - GTCL .................................... App 13-1 Appendix 14. Environmental Checklist for Gas Transmission Pipeline Project (Dhanua - Elenga) - GTCL .................................................................................... App 14-1 Appendix 15. Environmental Checklist for Gas Transmission Pipeline Project (West Bank of Jamuna Bridge - Nalka) - GTCL .............................................. App 15-1 Appendix 16. Gaps between JICA Guidelines and Laws of Bangladesh on Involuntary Resettlement ........................................................................................... App 16-1 Appendix 17. Lost and Affected Property Inventory for Dhanua-Elenga Gas Pipeline Project-GTCL ......................................................................................... App 17-1 Appendix 18. Entitlement Policy Matrix on Land Acquisition and Resettlement for Gas Transmission Pipeline Project (Dhanua-Elenga) of GTCL .................... App 18-1 Appendix 19. Resettlement Monitoring and Evaluation Forms for Dhanua-Elenga Gas Pipeline Project of GTCL ....................................................................... App 19-1 Appendix 20. Draft Subsidiary Loan Agreement Between GOB and BGFCL for Component 1: Wellhead Gas Compressors ............................................ App 20-1 Appendix 21. Draft Subsidiary Loan Agreement between GOB and GTCL for Component 2: Gas Transmission Pipelines ............................................ App 21-1 Appendix 22. Draft Subsidiary Loan Agreement Between GOB and TGTDCL for Component 3: Pre-paid Gas Meters ........................................................ App 22-1 Appendix 23. Draft Subsidiary Loan Agreement Between GOB and KGDCL for Component 4: Pre-paid Gas Meters ........................................................ App 23-1 Appendix 24. Possibility of Future Assistance: Details of Possible Large-scale Projects for the Development of Natural Gas Sector in Future and Technical Capacity Building ................................................................................... App 24-1 ii Appendix 1: PIPELINE NETWORK ANALYSIS (BGFCL) Appendix 1. Pipeline Network Analysis Summary Natural gas is one of indigenous energy resources in Bangladesh and is significantly contributing the economic growth of the country. However, in recent years, the supply of natural gas has been insufficient for the domestic demand which has rapidly been increasing with the growth of economy. In this pipeline network analysis, flow simulation is carried out to verify capacity of gas transmission and distribution pipelines in Bangladesh on the basis of pipeline data such as gas supply and demand forecast, operating conditions of pipeline network, currently undergoing and planned projects by using flow simulation software, “PIPESIM”. The pipeline capacity is analyzed for future pipeline facility planned in 2015, 2020, 2025 and 2030. Prior to the simulation, current pipeline network model as of 2013 was developed in accordance with several information collected through site survey and hearing to GTCL. And pipeline network diagrams for 2015, 2020, 2025 and 2030 were prepared every five (5) years in consideration of future pipeline projects that are currently under construction or planned in near future. Refer to Figure 1.1-1 to 1.1-4. In order to establish simulation model for the pipeline network, current pipeline data was calibrated so as to balance operating conditions such as flow rate, operating pressure and temperature at all the points on the network based on some operating conditions available at this moment. All the input data such as pipeline data, operating conditions mentioned above were described in Chapter 2 and calibration using its current operating data is carried out in Chapter 4. Using the calibration result, the network analysis was conducted for the above future cases. In this analysis, total gas supply volume forecasted in future was assumed to be equal to total gas demand. As the results of this study, considerable bottlenecks of the pipeline system are checked and an appropriate improvement plan was proposed for the next engineering stage as an exsample. Simulation result of the pipeline network analysis in 2015, 2020, 2025 and 2030 is summarized below: App 1-1 1. Simulation Result 1.1 2015 CASE As the result of the gas pipeline network simulation for the year 2015, following bottlenecks were revealed. Refer to Figure 1.1-2. (1) Bottleneck 1 Existing 24” pipeline between Dhanua (N57) and Elenga (N60) does not have enough capacity to transport required amount of demand gas. Therefore, all the delivery points (e.g. N61, 69, 76, 77, 78, 79, 81, 83, 139) located downstream of Elenga cannot supply gas with proper pressure level to end-users. The reasons and countermeasures against the bottleneck are as follows. 1) Reasons Gas flow rate of the existing Dhanua–Elenga pipeline is expected to be huge in this year because all the gases from Bibiyana Gas Field (N13) by 36’’ pipeline and Monohordi by 24’’ & 30’’ pipelines are gathered at Dhanua and are transported toward Elenga. Accordingly, it is considered that increment of the flow rate leads to enormous pressure drop in this pipeline section. 2) Countermeasures Installation of additional Dhanua–Elenga pipeline (duplication of pipeline) or additional booster compressor in Dhanua As for the above bottleneck, duplication of Dhanua–Elenga pipeline is planned by the year 2017. Accordingly, the additional booster compressor installation scenario for the pipeline section was applied to solve this bottleneck. According to installation of the compressor, required suction pressure of 650 psig in Elenga compressor station can be achieved, and also existing 24” Dhanua–Elenga pipeline can transport required amount of gas to Elenga without new 30” pipeline mentioned above. In this case, discharge pressure of 1,138 psig is required for the compressor in Dhanua. (2) Bottleneck 2 Existing 24” N-S Pipeline between N02 and Muchai (N09) does not have enough capacity to transport required amount of demand gas. The reasons and countermeasures against the bottleneck are as follows. App 1-2 1) Reasons Gas flow rate in the pipeline section increases due to increment of gas production volume of each gas field that was assumed so as to correspond to gas demand forecasted in 2015. It is considered