Research On Gas Storage Underground Construction Project Economic Evaluation XX

XX underground gas storage is the XinYueZe pipeline supporting projects. XX Low Permeability Sandstone natural gas reservoir gas main block4of Paleogene Shahejie strata underground gas storage target strata. According to the geological characteristics of gas reservoir and the required or gas storage construction parameters, the effective work capacity of underground gas storage is designed to4.513billion square, the upper limit pressure is38.6MPa, the lower pressure is19MPa. According the design of gas reservoir geology and engineering, the design of drilling engineering, the design of injection gas and gas production engineering, the design of old wells use and killing well and the design of ground engineering estimates the investment of XX underground gas storage construction project. Then, reference to the current domestic production of underground gas storage operation costs and XX gas reservoir current production situation, studied the economic evaluation of the XX underground gas storage project. By solvency analysis, the overall project work in different modes loan repayment period is9.31～9.46, the first phase of the project at different targets under loan repayment period is8.33～8.59years. Interest during the loan repayment reserve ratio is greater than2, the debt service coverage ratio is greater than1.3, has a faster repayment ability. By the financial viability analysis, the difference between the accumulated surplus presented annually increasing trend, financial sustainability. By the project economic evaluation, that if a project for a few days while improving emergency reservoir pressure limit switch led price increases, there are some uncertain factors, the proposed increase in the number of wells and improve emergency response capabilities compared argumentation. XX large underground gas storage capacity, after the completion of the underground gas storage, for coordinating supply and demand, optimize the transmission and distribution network, ensuring security of gas supply, to ensure the reliability and continuity of supply and to respond to emergencies caused by natural gas imports interrupt of such great importance. Therefore, XX underground gas storage construction project is economically viable, with good social and economic benefits, the proposed implementation.