| 低渗透油藏油水两相非线性渗流规律 |
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| 引用本文： | 田敏,李晓平,李楠,陈凤.低渗透油藏油水两相非线性渗流规律[J].特种油气藏,2011,18(6):92-95,128,129. |
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| 作者姓名： | 田敏 李晓平 李楠 陈凤 |
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| 作者单位： | 1. 油气藏地质及开发工程国家重点实验室西南石油大学,四川成都,610500
2. 中油勘探开发研究院,北京,100083 |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金“三维大变化尺度缝洞型碳酸盐岩油藏复杂油水两相流动规律研究”(20105121110006) |
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| 摘 要： | 随着低渗透油气藏的开发,有关启动压力梯度和应力敏感的渗流问题逐渐得到了广泛关注.针对目前低渗透油水两相渗流压力分布规律研究较少以及油水两相产量计算不准确等问题,充分考虑水驱前缘突破油井后,含水饱和度沿油藏径向不均匀分布,建立了考虑启动压力梯度和应力敏感的油水两相径向稳定渗流模型,推导出了压力分布和产量方程.计算结果表明:在低渗透油水两相油藏中,地层压降随启动压力梯度的增大而增大,随应力敏感系数的增大而减小；油井产量随启动压力梯度和应力敏感的增大而降低.研究结果为低渗透油水两相油藏的开发提供了理论基础.
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| 关 键 词： | 低渗透油藏 非线性渗流 启动压力梯度 应力敏感 压力分布 产量 |
Theoretical study on oil-water two-phase non-linear flow in low permeability reservoirs |
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| TIAN Min,LI Xiao-ping,LI Nan,CHEN Feng.Theoretical study on oil-water two-phase non-linear flow in low permeability reservoirs[J].Special Oil & Gas Reservoirs,2011,18(6):92-95,128,129. |
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| Authors: | TIAN Min LI Xiao-ping LI Nan CHEN Feng |
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| Affiliation: | TIAN Min1,LI Xiao-ping1,LI Nan2,CHEN Feng1(1.State Key Laboratory of Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China,2.Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China) |
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| Abstract: | With the development of low permeability oil and gas reservoirs,the flow issue regarding the kickoff pressure gradient and stress sensitivity has drawn more and more popular attention.The pressure distribution pattern of oil-water two-phase flow in low permeability reservoirs has not been sufficiently studied and the calculation of oil-water two-phase production has not been accurate.In this paper,an oil-water two-phase radial steady state flow model considering the kickoff pressure gradient and stress sens... |
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| Keywords: | low permeability reservoir nonlinear flow kickoff pressure gradient stress sensitivity pressure distribution production |
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