| FG型防斜工具的设计研究 |
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| 引用本文： | 付胜利,高德利.FG型防斜工具的设计研究[J].石油学报,2005,26(3):98-101. |
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| 作者姓名： | 付胜利 高德利 |
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| 作者单位： | 中国石油大学石油天然气工程学院 北京 102249 |
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| 基金项目： | 国家自然科学基金(No.50234030)资助。 |
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| 摘 要： | 钟摆钻具、满眼钻具、偏心钻具等防斜钻具组合在特定的条件下起到了一定的防斜作用,但其防斜效果受钻井操作参数的影响较大,有时不得不降低钻进速度以求得到较小的井斜率。为了解决上述问题,设计了FG新型复合式高效防斜工具。FG型防斜工具的显著特点是其防斜效果受钻压、转速等钻井参数影响较小,钻头侧向力大小基本不随钻压改变,在旋转过程中钻头侧向力方向可以不断变化。FG型防斜工具可以在正常钻压及转速条件下钻进,并将井斜控制在较小的范围之内。理论研究和算例分析表明,FG型防斜工具具有良好的防斜效果。
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| 关 键 词： | 垂直钻井 井斜控制 防斜工具 钻压 钻井参数 钻头侧向力 |
| 文章编号： | 0253-2697(2005)03-0098-04 |
| 收稿时间： | 2004-2-20 |
| 修稿时间： | 2004-6-1
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Design of FG type anti-deviation device |
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| FU Sheng-li,GAO De-li.Design of FG type anti-deviation device[J].Acta Petrolei Sinica,2005,26(3):98-101. |
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| Authors: | FU Sheng-li GAO De-li |
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| Affiliation: | Faculty of Petroleum Engineering, China University of Petroleum, Beijing 102249, China |
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| Abstract: | Most conventional anti-deviation devices have inherent limitations, and their anti-deviation effects are greatly affected by drilling parameters such as bit weight and rotary speed. In order to overcome these limitations, a new type FG anti-deviation device was designed. The bit side force of FG type anti-deviation device is almost never affected by drilling parameters, and the direction of bit side force continuously vary while drill string is rotating. The FG type anti-deviation device can operate under the normal bit weight and rotary speed. The theoretical analysis and case history proved the feasibility of this device. |
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| Keywords: | vertical drilling deviation control anti-deviation device bit weight drilling parameter bit side force |
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