查询词典 downhole

This paper introduced a set of brandnew mobile air lifting technology for acidulation and cleanup by using the mature matching skill of downhole air pumping with the mobile injection equipment of surface nitrogen gas generation system.

应用成熟的气举采油井下配套技术，结合可以移动的地面制氮注入设备，形成了一套全新的移动式气举酸化排液技术，从而发展了塔里木油田的气举采油技术，并在塔里木哈得油田试验和推广应用中见到了较好的经济效益。

By analysis of enforcement of drilling tools of air downhole hammer 's following pipe, the factors affecting the drilling speed and depth of the following pipe are obtained.

通过对空气潜孔锤跟管钻进钻具的受力分析，得到影响潜孔锤跟管钻进速度和跟管深度的因素。

Finally,the method and procedure of calculating downhole bit weight by use of the drilling weight and apparent pressure during drilling are proposed in the paper also.

并给出了利用钻进时的钻重和视压力，计算出井底钻压的方法及步骤。

The information of bore-hole inclination measured by the downhole apparatus is transferred to the pulse signal generator , and then sent to the pressure sensor on the stand in a form of pressure pulse and recorded by the electronic recorder finally the drift angle is indicated according to the pulse signal .

其工作原理为：通过精密的测量机构测量井斜，测得的井斜信息由控制机构传递给脉冲信号发生装置，该装置发出的信号通过钻井液以压力脉冲的形式传递给立管上的压力传感器，接收的信号由电子记录仪记录，由记录的脉冲信号读出井斜角。

The wellhead part mainly includes the controlling device, the pneumatic valve, the blowout control box, the damping spring and the plunger catcher, and the downhole part consist of the combination tubing, the buffer spring, the tubing spider and the plunger which reciprocated between the tubing.

井口部分主要包括控制器、气动阀、防喷盒、减震弹簧、柱塞捕捉器；井下部分主要包括大小油管、缓冲弹簧、油管卡定器，以及在大小油管间往复运动的柱塞。

When works in downhole, memory electromagnetic flow meter is centered in oil tube by centralizer.

为进一步计算电磁流量计的响应方程奠定了基础。

With the raise of a calculation method on dynamic friction coefficient of downhole tubing, the calculating accuracy of vertical conduit flow pressure is strengthened for a gas well, which promotes the dynamic analysis and prediction on gas well production.

气井井下油管动态摩阻系数计算方法的提出，提高了气井垂管流动压力计算的精度，对气井生产动态分析和预测起到了很好的推动作用。

By making use of multi-points backward pressure of one dry gas well, this paper introduces how to confirm dynamic friction coefficient of downhole tubing at the exact moment through stable testing material, gives the productivity and the corresponding bottom hole pressure by using productivity equation, calculates wellhead pressure in combination with dynamic friction coefficient of tubing, establishes the correct wellhead outflow performance equation for this well, draws out wellhead outflow performance curve and discusses how wellhead outflow performance equation or wellhead outflow performance curve changes with the decrease of formation pressure or the change of wellhead outflow performance curve.

借助1口干气井的多点回压法试井资料，介绍了如何利用气井稳定试井资料，确定该气井此时此刻井下油管动态摩阻系数；利用产能方程给出产量和对应的井底压力，结合油管动态摩阻系数计算井口压力，建立该井准确的井口流出动态方程并编绘井口流出动态曲线；讨论了随着地层压力递减和井下油管动态摩阻系数变化规律，井口流出动态方程或井口流出动态曲线的变化规律。

So ,collier downhole security power suplly is the homologous step for the particularity working condition.

所以，煤矿井下安全供电，就是应井下的特殊工作条件而采取的相应的措施。

In oilfield, downhole derricks are the main part that bears the loads in the downhole operation hoist system.

在油田起下油井管柱的各种施工中，作业井架是主要的承力构件，井架的承载性能对井下各种施工作业产生直接影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。