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。

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Rain water pipe through the walls and floor in accordance with the requirements set casing.

雨水管穿过墙壁和楼板按要求设置套管。

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Such as Annulus testing, casing outer set testing, With tubing bundle testing, etc... Not affect normal production in the course of testing.

如环空测试工艺，套管外固定测试工艺，随油管捆绑测试工艺等。在测试过程中对正常生产没有影响。

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There is also a display, just you don't see it until you nudge the volume up, or change the audio source etc, as it's set behind the casing.

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Buttons set into the elegant metal casing allow you to adjust the volume, select music titles, take phone calls and activate voice control or personal assistant features.

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