| 钻井抽吸和激动压力安全系数分析 |
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| 引用本文： | 李文飞,谢欢,姜兰其,曾强渗.钻井抽吸和激动压力安全系数分析[J].安全．健康和环境,2012,12(8):20-23. |
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| 作者姓名： | 李文飞 谢欢 姜兰其 曾强渗 |
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| 作者单位： | 中国石化胜利石油管理局钻井工艺研究院,山东东营,257017;中国石化胜利石油管理局海上石油工程技术检验中心,山东东营,257000;中国石化胜利石油管理局石油工程管理处,山东东营,257000 |
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| 基金项目： | 国家科技重大专项“大型油气田及煤层气开发”，国家“863”项目“海上大位移井钻完井关键技术开发与集成” |
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| 摘 要： | 基于流体力学和波动压力理论，研究了抽吸、激动压力安全系数的计算方法，分析结果表明，抽吸、激动压力随钻井液黏度、密度、井深的增加而增大，且与钻柱上、下行速度密切相关；大井眼中抽吸、激动压力较小，小井眼抽吸、激动压力较大；地层渗透性在一定程度也会影响抽吸、激动安全系数的取值。为不同地层钻井时合理安全地设计与调整钻井液密度，减少储层伤害提供了理论基础．
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| 关 键 词： | 钻井安全 起下钻 抽吸压力 激动压力 |
Analysis on Suction and Dynamic Safety Index during Drilling |
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| Li Wenfei
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Xie Huan
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Jiang Lanqi
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Zeng Qiangshen.Analysis on Suction and Dynamic Safety Index during Drilling[J].Safety Environment Health,2012,12(8):20-23. |
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| Authors: | Li Wenfei Xie Huan Jiang Lanqi Zeng Qiangshen |
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| Institution: | 1.SINOPEC ShengLi Oil Management Bureau Drilling Process Institute, Shandong, Dongying, 257017 2.SINOPEC ShengLi Oil Management Bureau offshore oil Engineering Techonology Inspection Center,Shandong,Dongying,257000 3.SINOPEC ShengLi Oil Management Bureau oil Engi-neering Management office,Shandong,Dongying,257000) |
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| Abstract: | Calculation methods of suction and dynamic index were researched based on theory of fluid mechanics and surge pressure. Results showed that pressure of suction and dynamic increased with viscosity and density of mud ,well depth increased, and was related with velocity of pick up and slick off; pressure of suction and dynamic was high in large well and low in small well; formation permeability had effect on suction and dynamic index. To design and adjust mud density safely and reasonably for different formation drilling could apply theoretical basis for decreasing reservoir damage. |
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| Keywords: | drilling safety pick up and slick off suction pressure dynamic pressure |
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