1) cored screw
钻孔螺杆
2) long screw pole drilling machine
长螺杆钻孔机
3) auger stem
螺杆钻杆
4) positive displacement motor
螺杆钻具
1.
The consecutive life of the positive displacement motor depends on its main shaft bearing assembly,but the assembly is a weak point.
由于螺杆钻具本身具有良好的动力特性,在套管内侧钻中得到广泛应用。
2.
During directional drilling in the coal mine engineering hole ,the lateral force on bit is one of major mechanical properties of the positive displacement motor assembly (PDM), which includes the bent sub-positive displacement motor assembly (BS-PDM) and the bent housing-positive displacement motor assembly (BH-PDM).
用螺杆钻具组合实施煤矿工程孔定向钻进时，钻头侧向力是其主要力学特性。
3.
In oil drilling engineering, the workers play much attention on how to increase the rate of penetration during controlling deviation of vertical well The structure of drill-assembly, which uses single bend PDM (positive displacement motor) to control hole deviation, is presented in this paper.
本文提出了利用单弯螺杆钻具来控制井斜的钻具组合结构，单弯螺杆钻具组合可以在低钻压下获得较高的转速，不但有利于控制井斜也有利于提高机械钻速。
5) screw drilling tool
螺杆钻具
1.
Study on the rubber stator compoundof one step injection screw drilling tool;
一步法注射螺杆钻具橡胶定子胶料的研制
2.
Design of the hydraulic testing platform for screw drilling tool;
螺杆钻具液马达试验架的设计
3.
A computer aided test (CAT) system for testing the performance of screw drilling tools and screw drilling motors are developed.
开发了螺杆钻具、螺杆泵性能计算机辅助测试 (CAT)系统 ,介绍了该系统的硬件构成以及数据采集处理软件的模块功能及设计方
6) drillpipe thread
钻杆螺纹
1.
Development of drillpipe thread defect detection apparatus;
钻杆螺纹缺陷检测装置的研制
补充资料：UR-9双螺杆式空气压缩机
UR-9双螺杆式空气压缩机
I甲之一9双螺杆式空气压缩机翻戳
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条