| 重复压裂新缝起裂位置与油井产量的关系 |
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| 引用本文： | 张广清,陈勉.重复压裂新缝起裂位置与油井产量的关系[J].辽宁工程技术大学学报(自然科学版),2009,28(3). |
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| 作者姓名： | 张广清 陈勉 |
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| 作者单位： | 1. 中国石油大学(北京)石油天然气工程学院,北京,昌平,102249;中国石油大学,城市油气输配技术北京市重点实验室,北京,昌平,102249
2. 中国石油大学(北京)石油天然气工程学院,北京,昌平,102249 |
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| 基金项目： | 国家自然科学基金资助项目，高等学校博士学科点专项科研基金资助项目 |
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| 摘 要： | 针对重复压裂不同起裂位置对油井产量的影响问题,采用油藏流动模型和水力裂缝流动模型共同描述系统的流动.提出了针对重复压裂裂缝系统的分析单元,并在采用有限差分法求解系统方程并编制模拟软件的基础上,研究了新缝形成对井网压力分布的影响,并得到了新缝起裂位置对油井产量的影响.研究发现,新缝在不同位置起裂对于井网的压力分布,尤其是裂缝系统附近压力的分布影响很大; 新裂缝起裂位置在离开井底10 m范围以内,油井累积产量下降较慢,之后下降幅度增加; 建议通过工程手段将新缝的起裂位置控制在10 m以内.
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| 关 键 词： | 重复压裂 新缝起裂位置 油井产量 |
Relationship between production and initiation location of new fractures in re-fractured well |
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| ZHANG Guangqing,CHEN Mian.Relationship between production and initiation location of new fractures in re-fractured well[J].Journal of Liaoning Technical University (Natural Science Edition),2009,28(3). |
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| Authors: | ZHANG Guangqing CHEN Mian |
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| Institution: | 1. School of Petroleum Engineering;China University of Petroleum;Beijing 102249;China;2. Beijing Key Laboratory of Urban Oil and Gas Distribution Technology;China |
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| Abstract: | To investigate the effect of initiation location of new fractures on well production, a reservoir model and a hydraulic fracture model are combined to model the fluid flow after re-fracturing. Based on the analytical unit in the fracture system caused by re-fracturing, and the solution of system equations obtained from finite difference method, this paper investigates the impact of new fractures on pressure distribution within a well network, and that of initiation locations of new fractures on well product... |
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| Keywords: | Re-fracturing initiation location of new fracture well production |
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