Foam cementing is commonly used for cementing in a shale gas well, while perforation after casing set is often for well completion.
页岩气固井主要采用泡沫水泥固井技术，完井方式以套管固井后射孔完井为主。
The thesis also studied that the effect casing strength of casing wear and corrosion, established casing residual intensity computational module after casing wear and corrosion.
论文研究了套管磨损、腐蚀对套管强度的影响，并建立了套管磨损后和套管腐蚀后的剩余强度计算模型。
With a stronger steel casing and backup shock-resistant triggering mechanisms, the Perseus can smash through several metres of reinforced concrete and detonate only after it has gone into a bunker.
珀尔修斯拥有更坚固的钢铁外壳和备用的抗震性触发系统，能击穿数米厚的钢筋混凝土，并在进入掩体之后才引爆。
A small gap that can form between the casing or liner and the surrounding cement sheath, most commonly formed by variations in temperature or pressure during or after the cementing process.
在套管或衬管与周围的水泥环之间所形成的小间隙，这些间隙是由于在固井期间或固井之后温度或压力的变化所致。
If the exhaust system is under a vacuum, the casing must be warmed by gradually introducing the steam, after opening the exhaust valve.
如果排气系统处于真空下，必须在打开排气阀后，逐渐引蒸汽来加热壳体。
The reason for this is that the occurrence of this stage could happen before or after the end of phase I depending on the distance the influx has to travel before it enters the casing shoe.
其理由是依据侵入进入套管鞋前必须运行的行程，该阶段可能发生在I阶段之前或之后。
Guarantee special thick wall casing to put down successfully and improve reaming after drilling technology to seal quality of salt layer.
保证特厚壁套管顺利下入和提高盐膏层封固质量的钻后扩眼技术。
A float collar is placed at the top of the float joint and a float shoe placed at the bottom to prevent reverse flow of cement back into the casing after placement.
浮箍是放置于浮动接头之上的，而浮鞋则是放置于浮动接头之下，以防止水泥浆回流到套管内。
The adapter between the first casing string and either the BOP stack (during drilling) or the wellhead (after completion).
在第一根套管柱和防喷器组(钻井时)或完井后的井口之间的一个接头。
After the cause of casing damage is analyzed, the improvement of the toughness of sheath can prevent the casing damage.
通过对套损井的成因分析发现：提高水泥环的韧性可以防止地层压力对套管的挤压损坏和地层流体对套管的腐蚀。
Fault face moves relatively after being contaminated by water, areas with complex faults distribution can easily cause abnormal high pressure thus can cause casing sheer easily.
断层面进水局部产生滑移，断层的分布交杂区易形成异常高压，导致断层附近易发生套损。
Air intercoolers and after-cooler, high efficiency cartridge type, built into the casing.
空气中间冷却器和一套后冷却器都为高效套筒形式，装在机壳中。
The LP casing blade of unit 3 in Tuoketuo Power Plant is broken after only three months operation.
托电3号机组低压缸叶片运行仅3个月就发生了断裂。
After door window is installed, appear directly tall the aperture of low, fan and casing is inhomogenous phenomenon, exist sometimes on wide below narrow or below wide on narrow issue.
门窗安装后，出现一头高一头低、扇和框的缝隙不均匀现象，有时存在上宽下窄或下宽上窄的问题。
An iron ore shaft in Hebei was constructed by drilling. After removal of steel casing in the shaft, water leaked around the shaft wall.
河北省某铁矿竖井采用钻井法施工，拆除井筒钢护壁后出现井筒漏水。
An iron ore shaft in Hebei was constructed by drilling. After removal of steel casing in the shaft, water leaked around the shaft wall.
河北省某铁矿竖井采用钻井法施工，拆除井筒钢护壁后出现井筒漏水。
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