新吸附气藏物质平衡方程推导及储量计算
网络出版日期: 2012-04-20
基金资助
国家“973”项目“煤层气定向羽状水平井开采机理研究”(编号:2002CB211709)、国家科技重大专项“大型油气田及煤层气开发” (编号:2011ZX05038-004)与油气藏地质及开发工程国家重点实验室开放基金项目“复杂气藏高效开发基础理论与应用技术研 究”(编号:PLN-05ZL001)联合资助。
Derivation of new material balance equation for adsorbed gas reservoir and reserve estimation
Online published: 2012-04-20
李长政 , 孙卫 , 任大忠 , 周树勋 , 王秀娟 . 新吸附气藏物质平衡方程推导及储量计算[J]. 岩性油气藏, 2012 , 24(2) : 83 -86 . DOI: 10.3969/j.issn.1673-8926.2012.02.016
During the exploitation process of unconventional adsorbed gas reservoirs, as formation pressure decreases, adsorbed gas will be desorbed and make adsorbed layer decrease and free gas space increase. At present, the material balance equation considering adsorbed layer volume variation has not been established and has not been applied to research the influence of adsorbed layer volume variation and density on adsorbed gas reservoir reserves. This paper firstly established newmaterial balance equation considering the adsorbed layer volume variation. The application cases proved the applicability and reliability of this equation, and it is cognized that adsorbed layer volume variation and density have greater influence on natural gas reserves estimation.
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