低渗透天然气项目经济评价方法及关键评价指标探讨

摘要/Abstract

摘要： 近年来，中国低渗透天然气藏等一大批特种天然气资源大力发展，投资规模不断加大，成为未来油气工业发展的主流。但我国现行低渗透天然气项目的经济评价并未与常规天然气项目区别进行，均采用相同的经济评价方法体系及参数标准，导致低渗透天然气项目的经济评价精度大打折扣，严重阻碍其健康发展。为此，以四川盆地X低渗透天然气项目及鄂尔多斯盆地S常规天然气项目作为研究对象，从两者的地质特征及单位操作成本的变化趋势入手，详细分析了中国低渗透天然气项目现行经济评价方法中财务评价指标与参数标准存在的问题，以及国民经济评价方法的不适应性，并提出其改革方向，使中国低渗透天然气项目的经济评价工作更加合理、完备。

关键词: 鄂尔多斯盆地, 低渗透天然气藏, 经济评价方法, 经济评价参数, 四川盆地

Abstract: In recent years, a large number of special natural gas resources including low-permeability gas reservoirs have vigorously emerged in China with increasing investments. They are expected to dominate the future development of petroleum industry. In China, however, economic evaluations for both low-permeability gas projects and conventional gas projects are conducted with the same methods and parameters. Such indiscrimination may significantly compromise the accuracy of economic evaluation for low-permeability gas projects, and eventually affect the healthy development of such projects. Under this background, geological features and changes of unit operating costs for the low-permeability gas project X in the Sichuan Basin and the conventional gas project S in the Ordos Basin were reviewed to analyse the problems in financial evaluation indicators for the economic evaluation methods currently deployed for low-permeability gas projects in China, and the inadaptability of national economic evaluation methods. Furthermore, certain improvements and reforms were proposed, aiming to make the economic evaluation for low-permeability gas projects in China more rational.

Key words: low-permeability gas reservoir, economic evaluation method, economic evaluation parameters, Sichuan Basin, Ordos Basin

李志学, 陈健, 张侃. 低渗透天然气项目经济评价方法及关键评价指标探讨[J]. 中国石油勘探, 2016, 21(5): 11-18.

Li Zhixue, Chen Jian, Zhang Kan. Methods and key indicators of economic evaluation for low-permeability gas projects[J]. China Petroleum Exploration, 2016, 21(5): 11-18.

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