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。

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Rotating casing is helpful to improve effectively mud displacement efficiency and thus improve cementing quality.

旋转套管可以有效提高水泥浆顶替效率，从而提高固井质量。

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A device used to hold plugs until they are released and pumped down the casing during cementing operations.

一种装置，用于在注水泥作业过程中悬挂胶塞，直到将其释放并在注水泥作业中沿套管内泵入。

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These operators also place an emphasis on appropriate casing designs and cementing practices to maintain wellbore integrity and protect the freshwater aquifers.

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Chesapeake Energy said in a statement that it will pay the fines and has improved its cementing and casing practices since the investigation.

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Cementing fills and seals the annulus between the well casing and the drilled hole.

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