The technology of monitoring well bottom while drilling has high precision, which can control borehole pressure more precise, but also the scope of the pressure gradient is well established.
井下随钻流量监测技术具有很高的监测精度，能够对井眼压力进行更加精细的控制，还能够对压力梯度范围很好的确定。
Developed study on the numerical bit, well bottom and the borehole face modeling method for PDC bit numerical experiment system.
开展了PD C钻头数值实验系统中数值钻头、数值井底以及数值井壁的建模方法研究。
The borehole deviation correction technique with bottom hole assembly and its application in Xinjiang oil Well YX-1 were introduced.
介绍了井底钻具组合纠偏技术及其在新疆YX - 1油井中的应用。
The tangency point of Bottom Hole Assembly is located at where the drill string just touches the wall of the borehole, and the contact force is zero here.
在计算底部钻具组合的受力和变形时，以前一般都是按弯矩为零的条件来确定其上切点的位置。
In oilfield experiment several different kinds of offset-axes bottom-hole assembly are applied in various formation and borehole size in order to study deviation controlling ability of it.
试验过程中，通过在不同地层、不同井眼尺寸条件下应用不同的偏轴钻具组合方式，研究偏轴钻具的防斜能力。
Oilfield is mined under the condition of function of edge-bottom water, when there is often crowded cement content, and through sealing borehole realize to seal high aquifer.
油田在边底水作用的条件下开采，作业时往往具有挤水泥措施内容，通过封堵炮眼实现封堵高含水层段。
Oilfield is mined under the condition of function of edge-bottom water, when there is often crowded cement content, and through sealing borehole realize to seal high aquifer.
油田在边底水作用的条件下开采，作业时往往具有挤水泥措施内容，通过封堵炮眼实现封堵高含水层段。
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