| 考虑实际气体达西流动的气井出砂预测模型 |
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| 引用本文： | 李爱芬,赵栋,凡田友.考虑实际气体达西流动的气井出砂预测模型[J].特种油气藏,2011,18(1):113-116,141. |
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| 作者姓名： | 李爱芬 赵栋 凡田友 |
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| 作者单位： | 1. 中国石油大学,山东,青岛,266555
2. 中石化胜利油田分公司,山东,东营,257000 |
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| 基金项目： | 国家科技重大专项“缝洞型碳酸盐岩油藏提高开发效果技术研究”(2008ZX05014-003) |
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| 摘 要： | 结合流体力学与岩石力学知识,以Mohr-Coulomb岩石破坏准则为基础,建立了考虑地层孔隙流体渗流作用与实际气体达西流动规律的裸眼气井出砂预测模型。利用数学方法解析求解,得出裸眼气井临界井底流压计算公式;引入地层稳定性指数概念,分析了地层孔隙流体压力、地应力、岩石抗压强度对地层稳定性的影响。结果表明,储层地应力增大、地层孔隙流体压力减小、岩石抗压强度减小,临界井底流压增大,地层稳定性指数减小,地层趋于不稳定,易出砂。
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| 关 键 词： | 实际气体 裸眼气井 出砂预测模型 解析求解 地层稳定性指数 |
Prediction model of sand production in gas well considering real gas Darcy flow |
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| LI Ai-fen,ZHAO Dong,FAN Tian-you.Prediction model of sand production in gas well considering real gas Darcy flow[J].Special Oil & Gas Reservoirs,2011,18(1):113-116,141. |
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| Authors: | LI Ai-fen ZHAO Dong FAN Tian-you |
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| Affiliation: | LI Ai-fen1,ZHAO Dong2,FAN Tian-you1(1.China University of Petroleum,Qingdao,Shandong 266555,China,2.Shengli Oilfield Company,SINOPEC,Dongying,Shandong 257000,China) |
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| Abstract: | A prediction model of sand production in openhole gas well has been established based on the Mhor-Coulomb rock failure criterion with consideration of fluid flow through formation pores and the rule of Darcy flow of real gas.A formula of critical bottom hole flowing pressure is reduced for openhole gas well by solving analytical solution.The impacts of pore fluid pressure,terrestrial stress and rock compressive strength on formation stability are analyzed by introducing the concept of formation stability in... |
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| Keywords: | real gas openhole gas well sand production prediction model analytical solution formation stability index |
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