| 油田开发中后期调整井储层井壁稳定性研究 |
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| 作者单位： | 中国石油大学石油工程教育部重点实验室 |
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| 摘 要： | 目前井壁稳定研究集中在静态阶段,没有考虑油田开发中后期地层孔隙压力变化因素。根据渗流力学理论和油藏工程方法,建立储层区域地层压力动态预测模型,预测地层孔隙压力变化规律,以此为基础建立储层坍塌压力、破裂压力变化模型。研究结果表明,地层压力降低引起地层坍塌压力和地层破裂压力同时下降、油井附近的调整井、加密井储层容易漏失;注水井附近的调整井、加密井储层井壁容易坍塌。
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| 关 键 词： | 调整井 储层 井壁稳定 地层压力 |
Study on Wellbore Stability of Adunstment Well at the Middle and Late Stages of Oilfield Development |
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| SHI Ming-yi,JIN Yan. Study on Wellbore Stability of Adunstment Well at the Middle and Late Stages of Oilfield Development[J]. Journal of Oil and Gas Technology, 2008, 0(3) |
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| Authors: | SHI Ming-yi JIN Yan |
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| Abstract: | At present,study of borehole stability was mainly under static state without considering the change of pore pressure at the middle and late stages of oilfield development.According to theory of fluid dynamics in porous medium and reservoir engineering method,the dynamic prediction model of regional formation pressure of reservoir was built to predict the law of pore pressure,and establish a model of collapsing pressure and fracture pressure reduction because reservoir pressure decreases.Reservoir of adjustment well,infilling well around oil wells leaks easily,while near injection well,reservoir collapses easily. |
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| Keywords: | adjustment well reservoir borehole stability reservoir pressure |
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