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气藏压裂水平井非稳态流动分析
引用本文:廉培庆,程林松,何理鹏,李芳.气藏压裂水平井非稳态流动分析[J].计算力学学报,2011,28(4):579-583.
作者姓名:廉培庆  程林松  何理鹏  李芳
作者单位:中国石油大学(北京)石油工程学院,北京,102249
基金项目:国家自然科学基金 (90210019);教育部高等学校博士学科点专项科研基金(20060425001)资助项目.
摘    要:应用Green函数和Newman积原理,建立了压裂水平井与气藏耦合的非稳态流动模型,并给出求解方法。所建立的模型可应用多种约束条件,考虑了井筒压降和加速度的影响,并适用于各向异性气藏。实例计算表明:水平井在早期非稳态阶段的流量比拟稳态阶段大得多。早期非稳态流动阶段,各条裂缝之间未发生干扰,流量的大小与裂缝条数成正比例关...

关 键 词:水平井  非稳态  气藏  压降  裂缝
收稿时间:2009/7/19 0:00:00
修稿时间:2009/12/20 0:00:00

Analysis of transient flowing model for fractured horizontal well in gas reservoir
LIAN Pei-qing,CHENG Lin-song,HE Li-peng and LI Fang.Analysis of transient flowing model for fractured horizontal well in gas reservoir[J].Chinese Journal of Computational Mechanics,2011,28(4):579-583.
Authors:LIAN Pei-qing  CHENG Lin-song  HE Li-peng and LI Fang
Institution:College of Petroleum Engineering,China University of Petroleum (Beijing),Beijing 102249,China;College of Petroleum Engineering,China University of Petroleum (Beijing),Beijing 102249,China;College of Petroleum Engineering,China University of Petroleum (Beijing),Beijing 102249,China;College of Petroleum Engineering,China University of Petroleum (Beijing),Beijing 102249,China
Abstract:Based on Green function and Neumann product principle, a flow model of fractured horizontal well coupled with gas reservoir under unsteady state is established and the method to solve this problem is also given. The established model is available for anisotropic gas reservoir in consideration of pressure drop along the wellbore caused by friction and acceleration, making use of various constraints. Calculation results show that, flow rate of horizontal well under early unsteady state is larger than that under pseudo-steady state. There is no interference among fractures in early unsteady state, and flow rate is in direct proportion to fracture numbers. Flow rate of end fractures is obviously larger than that of other fractures, affected by frictional and accelerational pressure drop. The closer fractures are to the toe, the smaller the flow rate of fractures is.
Keywords:horizontal well  unsteady state  gas reservoir  pressure drop  fracture
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