| 新吸附气藏物质平衡方程推导及储量计算 |
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| 引用本文： | 王德龙,郭平,陈恒,付微风,汪忠德,丁洪坤. 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 |
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| 作者姓名： | 王德龙 郭平 陈恒 付微风 汪忠德 丁洪坤 |
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| 作者单位： | 1.西南石油大学油气藏地质及开发工程国家重点实验室； 2.中国石油长庆油田分公司；3.中国石油川庆 钻探工程有限公司钻采工程技术研究院； 4.中国石油化工股份有限公司石油物探技术研究院； 5.中国石油塔里木油田分公司开发事业部 |
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| 基金项目： | 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）; 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 |
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| 摘 要： | 在非常规吸附气藏开采过程中，随着地层压力的不断下降，吸附气解吸使吸附层体积变小，游离气 空间增大。目前国内外均未考虑建立吸附层体积变化的物质平衡方程及研究吸附层体积变化、吸附层密 度对估算吸附气藏储量的影响。本次研究首次考虑吸附层体积的变化，建立了新的物质平衡方程。通过 实例分析验证了该方程的适用性和可靠性，同时认识到吸附层体积变化及吸附层密度对计算天然气储量 有较大的影响。
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| 关 键 词： | 孔隙结构 核磁共振 恒速压汞 长81储层 华庆地区 鄂尔多斯盆地 |
Derivation of new material balance equation for adsorbed gas reservoir and reserve estimation |
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| WANG Delong,GUO Ping,CHEN Heng,FU Weifeng,WANG Zhongde,DING Hongkun. Derivation of new material balance equation for adsorbed gas reservoir and reserve estimation[J]. Northwest Oil & Gas Exploration, 2012, 24(2): 83-86. DOI: 10.3969/j.issn.1673-8926.2012.02.016 |
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| Authors: | WANG Delong GUO Ping CHEN Heng FU Weifeng WANG Zhongde DING Hongkun |
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| Affiliation: | 1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China;2.PetroChina Changqing Oilfield Company,Xi’an 710020,China;3.Research Institute of Drilling and Recovery Technology,PetroChina Chuanqing Drilling Engineering Company Ltd.,Xi’an 710020,China;4.Research Institute of Geophysical Prospecting,Sinopec,Nanjing 210014,China;5.Exploitation Enterprise Department,PetroChina Tarim Oilfield Company,Korla 841000,China) |
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| Abstract: | 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 new material 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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| Keywords: | adsorbed gas reservoir isothermal adsorption adsorbed layer density material balance |
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