drilling centralizer
钻井扶正器
Where to connect the centralizer ?
扶正器下在什么地方?
The developing of toothlike centralizer.
齿形扶正器的研制
Run a centralizer every two joints of casing.
每隔一根套管下一个扶正器。
Expandable Casing Centralizer with Laminations
叠片式可膨胀套管扶正器设计
Improvement and structure analysis of a flexible roller centralizer
伸缩式滚子扶正器的结构分析与改进
The net centralizer is classified into movable type and hot setting type.
新型扶正器分活动式 和热固式两种。
Development and application of spin paraffin cutting sucker rod centralizer
自旋式刮蜡抽油杆扶正器的研制与应用
Casing centralizer with double bow spring blade is modified from single bow.
使用最普遍的是单弓形弹簧片套管扶正器。
Pressure Drop Study on Annular Helical Flow Field under Action of Cyclone Centralizer
旋流扶正器作用下环空螺旋流场压降研究
The conventional casing centralizer can not meet the requirements of expandable casing.
传统的套管扶正器满足不了可膨胀套管的扶正要求。
RESEARCH ON THE HELICAL FLOW ATTENUATION LAW IN ANNULAR FLOW FIELD BY THE ACTION OF CYCLONE CENTRALIZER
在旋流扶正器作用下环空流场旋流衰减规律研究
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