| 直井段偏移对后期定向钻井作业的影响分析 |
| 投稿时间：2018-09-08 修订日期：2019-06-14 点此下载全文 |
| 引用本文：张瑞平,万教育,李 彬,等.直井段偏移对后期定向钻井作业的影响分析[J].钻探工程,2019,46(7):28-33.ZHANG Ruiping,WAN Jiaoyu,LI Bin,et al. Analysis of influence of deviation in vertical sectionon directional control drilling[J]. Drilling Engineering, 2019,46(7):28-33. |
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| 中文摘要:在定向井、水平井钻井过程中，直井段井身质量的控制对后期定向造斜与轨迹控制的影响往往被忽视，国内对定向井、水平井直井段井身质量要求基本是以常规直井的标准为依据，没有重视到直井段位移、井斜和方位对定向施工的影响。对于定向井、水平井来说，直井段偏移不仅对后期轨迹控制、定向施工和完井作业带来危害，同时给油田后续开发中井位的部署带来不利影响，对于平台丛式井直井段偏移可能造成井眼相碰，因此，定向井、水平井直井段控制的好与坏，将会给定向井、水平井的钻（完）井带来很大影响。本文统计分析近年完成的定向井、水平井直井段偏移情况和影响，简述直井段偏移的形成原因，对直井段不同类型偏移造成的影响进行了分析并提出了应对方案。 |
| 中文关键词:定向钻井 水平钻井 直井段 偏移 “狗腿”度 |
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| Analysis of influence of deviation in vertical sectionon directional control drilling |
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| Abstract:During drilling directional and horizontal wells, the effect of trajectory control quality of the vertical section on the trajectory control of the following directional section is usually neglected. In domestic requirements on the quality of trajectory control, the effect of displacement, inclination and azimuth on the following trajectory control of the directional section is not given necessary attention. For directional and horizontal wells, the deviation in the vertical section not only jeopardizes the trajectory control and completion operations, but also bring negative effect on the well deployment in the oilfield; meanwhile, it may lead to well collision in the vertical section of wells from the same platform. This paper analyzes the deviation results of directional and horizontal wells completed in recent years, and describes the reasons why these deviations were formed. Based on that, this paper further analyzes the effect of the deviation and gives the proposal to deal with it. |
| keywords:directional drilling horizontal drilling vertical section deviation dogleg severity |
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