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| 定向井钻压传导计算方法 | |
| 引用本文： | 郑双进,黄志强,陈彬,周吉祥.定向井钻压传导计算方法[J].断块油气田,2011,18(3):403-405. |
| 作者姓名： | 郑双进 黄志强 陈彬 周吉祥 |
| 作者单位： | 1. 中国石油钻井工程重点实验室长江大学研究室,湖北,荆州,434023;长江大学石油工程学院,湖北,荆州,434023 2. 中海石油(中国)有限公司深圳分公司,广东,深圳,518000 3. 胜利石油管理局渤海钻井公司,山东,东营,257000 |
| 摘 要： | 在定向井、水平井钻井过程中,钻柱摩阻的存在直接影响了钻压传导,井底钻压往往低于预定施加钻压,严重影响了钻井效率.因此,科学地进行钻压传导分析,准确地计算井底实际钻压是保证定向井快速钻井的关键.考虑钻井液对钻柱轴向力的影响,并结合定向井钻柱结构特点,分别对上部钻柱和底部钻具组合进行受力分析,建立了上部钻柱和底部钻具组合轴... |
| 关 键 词： | 定向井 摩阻 钻压传导 大钩载荷 |
Calculating method for WOB conducting of directional well |
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| Zheng Shuangjin,Huang Zhiqiang,Chen Bin,Zhou Jixiang.Calculating method for WOB conducting of directional well[J].Fault-Block Oil & Gas Field,2011,18(3):403-405. | |
| Authors: | Zheng Shuangjin Huang Zhiqiang Chen Bin Zhou Jixiang |
| Affiliation: | 1.Research Department of Key Laboratory for Drilling Engineering,Yangtze University,Jingzhou 434023,China;2.College of Petroleum Engineering,Yangtze University,Jingzhou 434023,China;3.Shenzhen Company of CNOOC,Shenzhen 518000,China; 4.Bohai Drilling Company of Shengli Petroleum Administration Bureau,SINOPEC,Dongying 257000,China) |
| Abstract: | In the course of drilling directional well and horizontal well,the presence of friction affects the WOB（weight on bit） conducting directly and the WOB at bottom hole is often lower than that of predetermined WOB,which affects the drilling efficiency seriously.Therefore,scientifically analyzing the WOB conducting and correctly calculating the actual WOB at bottom hole are the keys for ensuring the fast drilling of directional well.In this paper,the influence of drilling fluid on the axial force in drill string was considered.Combined with the structural features of drilling string in directional well,the force of upper drill string and BHA was analyzed respectively and the calculation method of axial force of upper drill string and BHA was established.This method can calculate the actual WOB at bottom hole according to the hook load.It has important practical significance to analyze WOB conducting,guiding the drilling operation and improving drilling efficiency. |
| Keywords: | directional well friction WOB conducting hook load |
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