| 火山岩高含CO2气藏渗透率应力敏感性研究 |
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| 引用本文： | 范照伟,杨胜来,王玉霞,邓惠.火山岩高含CO2气藏渗透率应力敏感性研究[J].断块油气田,2010,17(1):57-59. |
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| 作者姓名： | 范照伟 杨胜来 王玉霞 邓惠 |
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| 作者单位： | 1. 中国石油大学石油工程教育部重点实验室,北京,102249
2. 西南油气田分公司勘探开发研究院,四川,成都,610051 |
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| 基金项目： | 中国石油股份公司重大专项“吉林油田含CO_2天然气开发和CO_2埋存及资源综合利用研究” |
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| 摘 要： | 摘要从火山岩高含CO2气藏渗透率应力敏感性实验出发，对比了不同气体对渗透率应力敏感性的影响，认为天然气中CO2含量对应力敏感性有较大影响，得出了岩石渗透率随有效覆压的变化规律。对比火山岩气藏渗透率应力敏感性与一般低渗透气藏应力敏感性的规律是否相同，同时采用多种方法评价气藏的应力敏感性程度。长深气藏应力敏感性属于中等强度，在开发初期就要制定合理的气井工作制度避免伤害地层。该类气藏渗透率随有效覆压的变化符合幂函数关系。岩心与二氧化碳的作用力要强于与氮气和天然气的作用力，由于该气藏CO2含量高，因此CO2的存在会加剧了该类气藏的应力敏感性。火山岩孔隙结构复杂是该类气藏应力敏感的主要因素。
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| 关 键 词： | 火山岩 高含CO2气藏 有效覆压 应力敏感性 |
Permeability stress sensitivity of volcanic gas reservoir with high CO2 content |
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| Fan Zhaowei,Yang Shenglai,Wang Yuxia,Deng Hui.Permeability stress sensitivity of volcanic gas reservoir with high CO2 content[J].Fault-Block Oil & Gas Field,2010,17(1):57-59. |
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| Authors: | Fan Zhaowei Yang Shenglai Wang Yuxia Deng Hui |
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| Affiliation: | 1.Key Laboratory for Petroleum Engineering;Ministry of Education;China University of Petroleum;Beijing 102249;China;2.Research Institute of Exploration and Development;Southwest Oil and Gas Field Company;CNPC;Chengdu 610051;China |
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| Abstract: | Based on the experiments of permeability stress sensitivity of volcanic gas reservoir with high CO2 content,the influence of different gas on permeability stress sensitivity was compared.It is considered that CO2 content has a major effect on permeability stress sensitivity and the variation rule of rock permeability with effective overburden pressure was obtained.It compared the permeability stress sensitivity of volcanic gas reservoir with that of generally low permeability gas reservoirs to find out whet... |
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| Keywords: | volcanic rock high CO2 content gas reservoir effective overburden pressure stress sensitivity |
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