油管柱普遍使用具有高铬含量的合金。
Alloys with a high chrome content are commonly used for tubing strings.
能够经油管柱和相关的环形空间实现循环的井下装置。
A downhole device that enables circulation through the tubing string and associated annulus.
研究了连续油管柱内流体的液动压力对连续油管柱纵向振动的影响问题。
This paper studies the affection that the flowing force of fluid inside coiled tubing is correlated to longitudinal vibration of coiled tubing.
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