钻探套管;
Through shooting fast neutron and measuring spectral gamma-ray produced by neutron activation reaction, oil-bearing saturability of strata outside boring casing can be determined.
通过向地层发射快中子并测量中子反应产生的伽玛射线能谱能够确定套管外面地层的含油饱和度。
Discussing the OilWell Construction Question from Surficial Boring Casing Tripping in Accurate Location in Yanchang 86 Well
从延86井表层套管下入位置谈油井施工问题
The paper sketches the course of research and development of" CG percussive grabbing boring equipment with casing", composition and specification of equipment;
简述了国家重点新产品“CG型全套管冲抓成孔设备”的研发历程,以及设备的组成、特点和参数;
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