生产封隔器或者测试封隔器可能下入下套管的井段，而膨胀式封隔器可以在裸眼井段使用，也可以在下套管井段使用。

Production or test packers may be set in cased holes and inflatable packers are used in open or cased holes.

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同时完井所下的套管为钢化玻璃，不但坚固耐用，也为地球物理测井的监测和测试创造了良好的条件。

The cases for well completion are made of toughened glass, which are not only durable, but practical for the monitoring of geophysical well logging.

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建议在井下条件允许的情况下，增加环空与套管内的压差值来提高固井质量。

So it is recommended that the pressure differential between the casing and the annulus be increased to improve the cementing quality if the downhole conditions permit.

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