| 地层自然极小漏失压力研究 |
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| 引用本文： | 蒋宏伟,石林,郭庆丰.地层自然极小漏失压力研究[J].钻井液与完井液,2011,28(5). |
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| 作者姓名： | 蒋宏伟 石林 郭庆丰 |
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| 作者单位： | 中国石油集团钻井工程技术研究院,北京 |
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| 基金项目： | “大型油气田及煤层气开发”国家油气重大专项“深井钻录、测试技术和配套装备”项目(2011ZX05021)部分研究成果 |
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| 摘 要： | 通过对地层漏失机理的分析,提出了极小漏失压力的概念,并得出自然极小漏失压力计算模型,表明自然极小漏失压力是自然漏失类型分析的基础判断条件.把漏失压力作为一个相对独立的概念纳入到安全钻井液密度分析中,对于预防井漏事故的发生是十分必要的.在钻井液密度分析中,使用漏失压力曲线(自然漏失压力与压裂漏失压力的集合,或者统称为漏破压力曲线)来替代破裂压力曲线比较全面.
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| 关 键 词： | 井漏 自然漏失 漏失压力 极小漏失压力 自然极小漏失压力 漏破压力曲线 |
Research on Natural Minimal Leakage Pressure of Thief Formation |
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| JIANG Hongwei,SHI Lin,GUO Qingfeng CNPC Drilling Research Institute,Beijing ,China.Research on Natural Minimal Leakage Pressure of Thief Formation[J].Drilling Fluid & Completion Fluid,2011,28(5). |
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| Authors: | JIANG Hongwei SHI Lin GUO Qingfeng CNPC Drilling Research Institute Beijing China |
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| Affiliation: | JIANG Hongwei,SHI Lin,GUO Qingfeng CNPC Drilling Research Institute,Beijing 100195,China |
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| Abstract: | By analyzing the leakage mechanism,a concept of minimal leakage pressure is proposed,and of the computation model is developed,which the minimal leakage pressure is the basic condition to define the leakage types.To prevent the leakage,it is very necessary to take the leakage pressure as a independent conception in the analysis of safe drilling fluid densities.Moreover,replacing the fracture pressure curve by leakage pressure is more comprehensive,which the leakage pressure curve in this paper is the aggreg... |
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| Keywords: | Lost circulation Natural leakage Leakage pressure Minimal leakage pressure Natural minimal leakage pressure Leakage and fracture pressure curve |
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