| 低渗透油藏递减影响因素的灰色关联分析 |
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| 引用本文： | 孙敬,刘德华,张亮,唐江.低渗透油藏递减影响因素的灰色关联分析[J].特种油气藏,2012,19(2):90-93,139,140. |
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| 作者姓名： | 孙敬 刘德华 张亮 唐江 |
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| 作者单位： | 1. 油气钻采工程湖北省重点实验室长江大学,湖北荆州,434023
2. 中油渤海钻探油气合作开发分公司,内蒙古鄂尔多斯,017300 |
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| 摘 要： | 通过统计西北某油田21个低渗透油藏的实际生产动态数据,结合油藏地质特征对孔隙度、渗透率、启动压力梯度、井网密度、原始含水饱和度、开发方式等影响低渗透油藏产量递减率的主要影响因素进行了分析;同时采用灰色关联分析法对多因素影响的相对重要性进行了研究,最后应用多元统计方法建立了采用衰竭方式开采的低渗油田初期自然递减率计算模型,可通过该模型计算分析初期自然递减率,为低渗油田采取延缓产量递减措施提供依据。
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| 关 键 词： | 低渗油藏 递减规律 影响因素 灰色关联分析法 |
Grey correlation analysis of the influencing factors on production decline in low permeability reservoirs |
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| SUN Jing,LIU De-hua,ZHANG Liang,TANG Jiang.Grey correlation analysis of the influencing factors on production decline in low permeability reservoirs[J].Special Oil & Gas Reservoirs,2012,19(2):90-93,139,140. |
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| Authors: | SUN Jing LIU De-hua ZHANG Liang TANG Jiang |
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| Affiliation: | 1(1.Hubei Key Laboratory of Oil and Gas Drilling & Production Engineering,Yangtze University,Jingzhou,Hubei 434023,China;2.Bohai Drilling Company,PetroChina,Ordos,Inner Mongolia 017300,China) |
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| Abstract: | This paper analyzes the main influencing factors on production decline in low permeability reservoirs,including porosity,permeability,kickoff pressure gradient,well spacing density,initial water saturation and development scenario based on the statistics of production data from 21 low permeability reservoirs and geological characteristics of an oilfield in northwest China.The relative importance of the influencing factors has been studied by grey correlation analysis.A model for calculating initial decline rate of low permeability reservoirs recovered by natural depletion is established by using multivariate statistics,thus providing basis for taking measures to delay production decline in low permeability oilfields. |
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| Keywords: | low permeability reservoir production decline influencing factor grey correlation analysis |
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