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定向井柔性防卡钻具组合及应用

Flexible Antisticking Assembly and Its Applications
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摘要 通过对带127mm加重钻杆的柔性防卡钻具组合进行受力分析、计算,得出了钻压以及195mm方接头棱中心距钻头底部距离与井斜、方位变化率之间的定性关系。大庆油田3口定向井的现场试验表明,该钻具组合既满足了井眼轨道控制要求又达到防卡的目的。 Through analyzing and calculating the force subjected to by the flexible antisticking bottomhole assembly,which is accompanied by φ127mm weighted drilling pipe,this paper obtained the bit weight and the qualitative relationship between the distance from the center of φ195mm square connection to the bottom of bit and the change rate of azimuth and hole deviation.It is suggested by field tests in three directional wells of Daqing Oilfield that this drilling string assembly not only met the requirements of well trajectory control, but also achieved the goal of antisticking.
出处 《石油钻探技术》 CAS 北大核心 1997年第2期42-44,共3页 Petroleum Drilling Techniques
关键词 定向井 防卡 钻具组合 钻杆接头 大庆油田 directional well,sticking prevention,bottomhole assembly,weighted drill pipe,drill pipe joint,application,Daqing Oilfield
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参考文献1

  • 1张学鸿,陈抡元,刘巨保.整体钻柱力学接触有限元分析[J]石油学报,1992(03).

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