For this reason,the landing nipple without angle difference used for directional drilling of deviated well track is developed based on the previous landing nipple. The piston and main body of the previous nipple are improved by using splined piston matching structure,which overcomes the shortcoming of the previous nipple.
针对这种情况,在原有定向接头的基础上,研制出用于斜井轨迹定向钻进的无角差定位接头,即对原接头的活塞和主体加以改进,采用花键式活塞配合结构,克服了原定位接头的不足。
参考来源 - 用于斜井轨迹定向钻进的无角差定位接头·2,447,543篇论文数据，部分数据来源于NoteExpress
However, they do not support the weight of the casing very well in deviated wellbores.
但是在定向井中不能够很好地支撑套管的重量。
Antiquated term for a deviated wellbore, usually used to describe a well deviated accidentally during the drilling process.
描述斜井的一个陈旧术语，通常是指在钻井过程中由于事故原因而使之倾斜的井眼。
With the coupling equations of the two flow systems, the time-dependent numerical model for highly deviated well gravel-packing is developed.
模型求解后研制了开发了充填过程模拟器软件，用于可视化模拟大斜度井砾石充填过程。
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