1) Torque/drag
摩阻/扭矩
2) drag and torque
摩阻扭矩
1.
The mechanical model of drilling string with connectors was set up in the paper,and was analyzed by iteration method for drag and torque during drilling,pulling out,going down and back reaming.
建立考虑接头钻柱的力学模型,并用迭代法进行求解,成功地分析了考虑接头钻柱在钻进、起钻、下钻、空转及倒划眼时与井壁的接触力、摩阻扭矩,并能预测各接头处接触力的大小、方向。
2.
Based on drill string dynamics theory and system simulation software,the horizontal well s dynamic drag and torque were studied.
通过全井钻柱系统动力学模型和计算软件,以某已实施水平井为例,计算了井口至不同井段的动态摩阻扭矩,根据计算结果初步设计了多种减阻工具安放方案,完成了不同安放方案动态摩阻扭矩的计算与分析,通过分析发现动力学计算方法能较好地反应摩阻扭矩的波动情况;具体井况中减阻工具的安放数量存在一个临界值,并非越多越好;安放位置必须经过对比计算确定,合理的安放位置不仅可以有效降低摩阻,而且可以减少安放工具数量。
3) torque and drag
摩阻扭矩
1.
Calculating model of torque and drag in extended-reach well;
大位移井摩阻扭矩计算模型
2.
New Method on Calculation of Torque and Drag Based on Drilling String System Dynamics;
基于钻柱系统动力学的摩阻扭矩计算新方法
4) friction torque
摩擦扭矩
1.
The test results indicated that the leading cause of difficult tapping in GH4169 and TC4 was the largeness of their friction torques which was about 45 % and 55% of tapping torque respectively but a les.
分析了攻丝过程及退回过程两阶段丝锥的力学特征,在此基础上分别建立了切削扭矩和摩擦扭矩力学模型。
2.
It was found that the friction torque was about 45% of the total torque as tapping with the standard taps.
结果表明,标准丝锥对GH4169攻丝的摩擦扭矩占总扭矩的45%,其顶后刀面及侧后刀面沿切削速度方向出现严重的磨损沟和粘着物,这主要归因于GH4169中的硬质点和严重的加工硬化;同标准丝锥相比,修正齿丝锥的摩擦扭矩减小65%,且磨损显著减轻,这是由于其独特的渐成法成形有利于减小刀齿与被切螺纹侧面间的摩擦接触面积及被切螺纹因大弹性变形而夹住丝锥齿的可能性所致。
6) resistance torque
阻扭矩
1.
The change of spun tension, the forming of resistance torque and the change of twist distribution are discussed when adding the resistance torque element in the rotor spun twist zone.
这里研究在转杯纺加捻区中加装阻扭件后,讨论分析加捻区中纺纱张力的变化,进而构成阻扭件产生的阻扭矩以及形成阻扭件前后区域捻度分布的变化并建立捻度分布模型。
补充资料：环空摩阻
分子式：
CAS号：
性质：又称环空摩耗或环空摩阻。在环形空间部分发生的压力损失。
CAS号：
性质：又称环空摩耗或环空摩阻。在环形空间部分发生的压力损失。
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