| 井筒与油藏耦合的压裂水平井非稳态产能计算模型 |
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| 引用本文： | 曾凡辉,郭建春,尹建.井筒与油藏耦合的压裂水平井非稳态产能计算模型[J].现代地质,2011,25(6):1159-1166. |
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| 作者姓名： | 曾凡辉 郭建春 尹建 |
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| 作者单位： | 1. 西南石油大学地质资源与地质工程博士后科研流动站,四川成都,610500
2. 西南石油大学油气藏地质及开发工程国家重点实验室,四川成都,610500 |
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| 摘 要： | 为了准确预测压裂水平井的产量,综合考虑流体在储层、井壁、压裂裂缝、射孔孔眼以及水平井筒中的流动过程,根据势叠加原理,建立了考虑射孔孔眼、压裂裂缝生产干扰作用下的井筒、油藏耦合压裂水平井非稳态产能计算模型。结果表明:只考虑裂缝生产与裂缝、孔眼同时生产时的水平井产量在生产初期差别较大,生产后期差别变小;由于裂缝、孔眼的干扰,水平井筒两端裂缝的产量高于中间裂缝的产量;由于井筒摩阻作用,关于水平井筒中心对称的裂缝流量不相等;随着裂缝长度增加,裂缝、射孔孔眼、水平井产量增大;随着裂缝导流能力增加,裂缝产量增大,射孔孔眼产量降低,水平井产量增大;射孔段越长,孔眼与裂缝的干扰愈强,单个孔眼的产量降低,但由于射孔数增加,水平井产量增大;射孔深度增加,压裂水平井产量增加。
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| 关 键 词： | 井筒 油藏 耦合模型 压裂水平井 非稳态产能 影响因素 |
An Unsteady State Computation Model of Fractured Horizontal Well Coupling with Reservoir |
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| ZENG Fan-hui,GUO Jian-chun,YIN Jian.An Unsteady State Computation Model of Fractured Horizontal Well Coupling with Reservoir[J].Geoscience——Journal of Graduate School,China University of Geosciences,2011,25(6):1159-1166. |
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| Authors: | ZENG Fan-hui GUO Jian-chun YIN Jian |
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| Institution: | ZENG Fan-hui1,GUO Jian-chun2,YIN Jian2(1.Post-doctoral Research Stations of Geological Resources and Geological Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,China,2.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,China) |
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| Abstract: | In order to calculate productivity of hydraulic fracture horizontal wells precisely,considering the reservoir seepage,borehole wall inflow,fracture and perforation flow's mutual influence,an unsteady state computation model of fractured horizontal well coupling with reservoir was established based on the superposition principle.Calculation results showed that compared to the horizontal well production only from fractures,the difference of that from fractures and perforations was great early and later decrea... |
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| Keywords: | well bore reservoir coupling model fractured horizontal well unsteady state affecting factor |
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