| 反循环气体钻井非线性温度模型 |
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| 引用本文： | 朱丽红,黄勇,殷琨,王瑞和,倪红坚.反循环气体钻井非线性温度模型[J].吉林大学学报(地球科学版),2011(Z1):227-231. |
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| 作者姓名： | 朱丽红 黄勇 殷琨 王瑞和 倪红坚 |
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| 作者单位： | 中国石油大学石油工程学院;吉林大学建设工程学院; |
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| 基金项目： | 国家“973”计划项目(2010CB226703); 中国地质调查局项目(1212010816018); 中央高校基本科研业务费专项资金项目(10CX03011A) |
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| 摘 要： | 在反循环气体钻井中,循环介质与地层之间不断进行着热交换,因此井内温度分布是影响气体反循环钻井流体动力学参数的重要因素。基于反循环钻井技术特点,考虑循环介质与地层间热量的交换,沿钻孔径向取传热平衡微分单元作为研究对象,建立中心通道内流体和环状间隙内流体热平衡方程。通过求解线性非齐次方程推出反循环气体钻井非线性温度模型,并给出了模型求解的边界条件。通过算例可知,按照自然地层温度计算的井底温度比采用该模型计算的井底温度高21.14 K,这是因为随井深增加,热量由温度较高的地层向温度较低的气体传递,但是热传递并不完全,考虑地层与井眼流体热交换的反循环气体钻井非线性温度模型符合井内温度分布。
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| 关 键 词： | 反循环 钻井 热量交换 非线性 温度模型 |
Non-Linear Temperature Model of Reverse Circulation Gas Drilling |
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| ZHU Li-hong,HUANG Yong,YIN Kun,WANG Rui-he,NI Hong-jian .School of Petroleum Engineering,China University of Petroleum,Qingdao ,Sh,ong,China .College of Construction Engineering,Jilin University,Changchun ,China.Non-Linear Temperature Model of Reverse Circulation Gas Drilling[J].Journal of Jilin Unviersity:Earth Science Edition,2011(Z1):227-231. |
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| Authors: | ZHU Li-hong HUANG Yong YIN Kun WANG Rui-he NI Hong-jian School of Petroleum Engineering China University of Petroleum Qingdao Sh ong China College of Construction Engineering Jilin University Changchun China |
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| Institution: | ZHU Li-hong1,HUANG Yong2,YIN Kun2,WANG Rui-he1,NI Hong-jian1 1.School of Petroleum Engineering,China University of Petroleum,Qingdao 266555,Shandong,China 2.College of Construction Engineering,Jilin University,Changchun 130026,China |
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| Abstract: | During the reverse circulation gas drilling,the heat is exchanged between the wellbore fluid and the formation,so the well temperature distribution is one of the most important influencing factors in fluid-dynamic parameters of reverse circulation gas drilling.Based on characteristics of reverse circulation drilling,considering the heat exchange occurred between the wellbore fluid and the formation,the heat transfer equilibrium differential element is taken as the research object along the radial drilling.T... |
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| Keywords: | reverse circulation well drilling heat exchange nonlinear temperature model |
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