| 刘巨保,张学鸿,樊显妹.长中半径水平井钻柱接触摩擦阻力分析[J].计算力学学报,1993,10(3): |
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| 长中半径水平井钻柱接触摩擦阻力分析 |
| The Contact Frictional Resistance Analysis of the Drillstring in the Horizontal Well of Long and Middle Radius |
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| DOI：10.7511/jslx19933056 |
| 中文关键词: 长中半径水平井,钻柱,接触摩擦阻力,间隙元 |
| 英文关键词:horizontal well of long and middle radius, drillstring, contact frictional resistance, gap element |
| 基金项目:国家“八五”科技攻关项目 |
| 刘巨保 张学鸿 樊显妹 |
大庆石油学院机械系 151400
(刘巨保，张学鸿)
，大庆石油学院机械系 151400(樊显妹)
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| 中文摘要: |
| 用整体钻柱静力模型和间隙元法,分析了长中半径水平井钻柱的接触非线性问题,算出了钻柱与井壁接触摩擦阻力的分布,为水平井井眼轨道设计和施工提供了重要参数。 |
| 英文摘要: |
| In the horizontal well of long and middle radius, the drillstring of several thousand meters is in random contact with the bore hole wall in a large area along the well depth, which is a nonlinear contact problem. It is solved by the gap element method[1] in this paper so that the contact state is accurately described and the contact frictional resistance of drillstring is calculated. A great number of calculation examples for engineering have shown that the gap element method may correctly describe the contact state between the drillstring and the hole well, and possess a better calculation accuracy and convergence, which provide the effective method for analyzing the contact frictional resistance of the drillstring in horizontal well. |
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