Natural gamma logging is a kind of most basic methods of well logging in cased Wells which measure with gamma ray detector along well during logging.

自然伽马测井是套管井测井中一种最基本的方法。它以地层自然放射性为基础，测井时用伽马射线探测器沿井眼进行测量。地层中的自然伽马放射性不是一成不变的。

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Drillstem testing (DST) technique provides a means of evaluating reservoir and fluid properties during drilling of a well. It can also be used in a cased well.

钻杆测试(DST)提供了一个在完井之前评价油藏和流体性质的方法。

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According to the request of short period production test, the bailing oil in cased well for pressure testing and open oil extraction technique have been developed.

为解决以往试采方法只能录取产量资料而不能同时测得井下流压资料问题，根据短期试采要求，研制出套管捞油测压工艺和开式试采工艺。

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At this moment, Davy Jones has been cased to the bottom of the well, sealed with cement and temporarily abandoned so the rig could be moved 2.5 miles to the southwest to drill the second Davy Jones delineation well.

FORBES: No Davy Jones Monkey Business For McMoRan

The only way that drilling could have caused communication is through the vertical well bore itself which is cemented and cased.

FORBES: Slurring Natural Gas With Flaming Faucets And Other Propaganda