1) double bent PDM
双弯钻具
1.
The method and formula of simplifying double bent PDM to equivalent single bent PDM is presented and the integrated equations applied to DKO and DTU are derived and a step equivalent method of simplifying double bent(mutibent) PDM to single bent PDM is provided.
提出了把双弯钻具简化为等效单弯钻具的方法和公式 ,建立了适用于同向、反向双弯的统一表达式 ,并给出了把三弯 (多弯 )钻具简化为单弯钻具的分步等效方法。
2) bended screwdrill
弯螺杆钻具
3) bending sub drilling tool
弯接头钻具
4) double-wall drill tool
双壁钻具
1.
A double-wall drill tool has been developed to solve problems arising in the process of controlling the wellbore trajectory using conventional downhole mud motor and MWD in under-balanced drilling with aerated drilling fluid.
为解决在充气钻井液欠平衡压力钻井时,使用常规井下动力钻具和随钻测量仪器进行井眼轨迹控制中遇到的技术难题,研制了双壁钻具。
5) dual tube drill pipe
双管钻具
6) bending drill assembly
弯曲钻具组合
补充资料：长春冷弯型钢总厂生产的异形冷弯型钢
长春冷弯型钢总厂生产的异形冷弯型钢
长春冷弯型钢总厂生产的异形冷弯型钢
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