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陕甘宁气田至北京天然气输送管道工程是目前我国起点高、距离最长、自动化控制、具有国内外先进水平的大口径天然气输送管道工程。该工程的概算总投资为３９３５×１０８元，其中固定资产投资为３５０９×１０８元，其投资水平较国内已建管道工程稍高，较国外，如美国等国管道工程的投资水平略低。建设输气管道工程的资金来源于国家开发银行和日本输出入银行贷款、企业自筹资本金及部分商业贷款，是我国管道工程成功地进行多渠道融资模式。陕甘宁至北京输气管道工程在年输天然气１１×１０８ｍ３，管输费０７４元／ｍ３的条件下，经济效益较好。如果在上游供气有保障，下游有大用户的情况下，增加管输量，提高管输利用率，达到经济规模，即能提高项目经济效益，因此，积极开拓下游用户是提高管输效益的当务之急。

ECONOMIC ANALYSIS ON SHAAN-JING GAS PIPELINE PROJECT

??The project of gas pipeline from Shaanganning gas field to Beijing is a large-diameter gas pipeline which has a high starting point and the longest distance in China at present and which is automatically controlled having an advanced technical level both at home and abroad.The fixed capital expenditure of the project is 39.35×10⁸ Yuan,in which,the fixed assets investment is 35.09×10⁸ Yuan,being slightly higher than the constructed pipeline project in China and slightly lower than that in forengn countries such as USA.The capital source came from China National Development Bank,Japan Export Bank's loan,the capital in cash raised by enterprise itself and a part of commercial loan,being a model of successfully financing through various channels for the pipeline project in China.The gas pipeline project from Shaanganning to Beijing has a better economic benefit on condition that the annual gas transmission capacity is 11×10⁸ m³ and gas transmission cost is 0.74 Yuan/m³.If gas supply can be guaranteed in upstream and there are users downstream,which makes the gas transmission capacity increased to an economic scale and the utilization ratio of the pipeline raised,the economic benefit can be increased.Therefore,developing the users downstream is an urgent matter for raising the economic benefit of the pipeline.