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。
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。
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。
A well log runs in a cased hole to evaluate the cement job behind the casing. The cement-bond log is the most common.
一种套管井测井方法，用于评价套管外注水泥作业。最常用的是水泥胶结测井。
The principle of the new method applies not only to cased hole interpretation but also to the interpretation of exploration well and adjustment well.
本方法的原理不仅适用于套管井的解释，而且可以推广到探井和调整井的测井解释中。
Sometimes, the work over operation must be done to large diameter cased bore hole for the need of production of the well.
因生产需要，有时要对大套管井筒进行修井。
The paper introduced several common cased-hole logging techniques and their application in Zhuanghai-401 well in Dagang Oilfield.
本文介绍了几种常用的过套管测井技术，并将其应用于大港油田的庄海401井。
This paper introduces a kind of dynamical tuning gyroscopic logging technology to re survey the well body track in cased production and injection Wells.
文章介绍了一种用于已下套管的油水井重新测量其井身轨迹的动力调谐陀螺测井技术。
As far as cased-hole formation resistivity logging, the key problems needed to be solved are detection of ultra-low frequency and extremely weak signals, as well as reduction of strong interferences.
超低频、纳伏级信号的检测以及强干扰的抑制是过套管地层电阻率测井需要解决的关键问题。
As far as cased-hole formation resistivity logging, the key problems needed to be solved are detection of ultra-low frequency and extremely weak signals, as well as reduction of strong interferences.
超低频、纳伏级信号的检测以及强干扰的抑制是过套管地层电阻率测井需要解决的关键问题。
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