Well logging technology and techniques for gas drilling, foam drilling and casing drilling are summarized and analyzed in this paper.

简要介绍了气体钻井、泡沫钻井和套管钻井等特殊钻井技术。

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To pump cement slurry down a well to fill the space between the casing and the rock walls.

向井中注入水泥浆，以充填在套管与岩壁之间的空间。

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Most of the models calculating casing thermal stress in thermal recovery well belong in a monoaxial stress analysis because of neglecting the effect of formation.

许多热采井套管热应力计算模型忽略了地层影响，属于单轴热应力分析。

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To get at the oil and gas trapped in shale, drillers use powerful hydraulic pumps to force water and chemicals through holes punched in the concrete-and-steel well casing.

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And then they send down a very high-speed injection of water into the well casing, and of course that flows into the rock and it puts little - tiny little hairline cracks in the rock, opens it up.

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Suffice to say, it feels well-built, which makes sense, as the casing is fashioned entirely out of aluminum.

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