| 井下闭环可变径稳定器的工作原理及应用研究 |
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| 引用本文： | 余志清.井下闭环可变径稳定器的工作原理及应用研究[J].石油学报,2002,23(3):95-97. |
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| 作者姓名： | 余志清 |
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| 作者单位： | 西安石油学院石油工程系, 陕西西安, 710065 |
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| 基金项目： | 国家 8 63科技攻关项目 (82 0 0 9 0 1 2B) |
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| 摘 要： | 井眼轨迹井下闭环控制技术是当前国内外石油钻井的前沿技术,将该技术与随钻测井技术结合,能实现地质导向技术.钻成大位移井必须依靠井眼轨迹控制技术,研制的井下闭环可变径稳定器是实现该项技术的关键.本文着重论述了井下闭环可变径稳定器的结构、工作原理及其控制井眼轨迹的方法.井下闭环可变径稳定器的研制及现场的初步试验成功,为解决我国大位移井问题,特别是为滩海油气勘探、提高钻井机械钻速、降低钻井成本提供了一条有效的途径.
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| 关 键 词： | 可变径稳定器 大位移井 钻井技术 井下闭环 井眼轨迹 控制技术 |
| 文章编号： | 0253-2697(2002)03-0095-03 |
| 收稿时间： | 2001-2-12 |
| 修稿时间： | 2001年2月12日 |
MECHANISM OF CONTROLLING BOREHOLE TRAJECTORY WITH CLOSE-LOOP ADJUSTABLE STABI-LIZER AT DOWNHOLE |
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| YU Zhiqing.MECHANISM OF CONTROLLING BOREHOLE TRAJECTORY WITH CLOSE-LOOP ADJUSTABLE STABI-LIZER AT DOWNHOLE[J].Acta Petrolei Sinica,2002,23(3):95-97. |
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| Authors: | YU Zhiqing |
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| Affiliation: | Xi'an Petroleum Institute, Xi'an 710065, China |
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| Abstract: | The closed_loop control of the well trajectory at downhole is the most advanced technology in domestic and overseas' drilling engineering.The technology of extended_reach well has become a main focus in the drilling technology of the petroleum industry in the world.It is necessary to depend on the control technology of borehole trajectory to drill the extended_reach well successfully.A closed_loop adjustable stabilizer at downhole is developed.The structure and principle of operation of the stabilizer,and method for controlling borehole trajectory with the close_loop adjustable stabilizer at downhole are described in detail.The close_loop adjustable stabilizer at downhole has been used in oilfield.It may provide an effective way for drilling of the extended_reach well,especially for the offshore_drilling,enhancing the rate of penetration and reducing the drilling cost. |
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| Keywords: | adjustable stabilizer extended_reach well drilling technology downhole closed_loop borehole trajectory control technique |
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