protection casing

Silicon insulated gate fet Cable Pipe-a protection casing pipe used for special purposes when crossing roads or bridges, with good characteristics of being acidproof and alkaliproof, and good performance on electric insulation and electromagnetic shielding.

硅绝缘栅场效应晶体管电缆管&为电缆过路、过桥专用保护套管，具有良好的耐酸碱和电气绝缘性能，电磁屏蔽性能。

On Hole Wall Protection by Pipe Casing CALCULATION OF WALL THICKNESS OF EXPANDABLE CASING

套管护孔问题初探膨胀管壁厚计算研究

This paper presents the casing program suitable for the Nanfang marine area, and critical technical problems to be tackled of keeping well vertical in high-steep structures, improving cementing qualities, slim hole drilling techniques, hydrocarbon zone discovery and protection, etc.

提出了南方海相地区井身结构设计、高陡构造防斜打直、提高固井质量、小井眼钻井技术、油气层的发现与保护等关键技术的研究攻关方向。

This paper introduces a new wall protection method for drilling loose strata casing pipe wall protection.

本文介绍一种新的钻探松散地层护壁方法——套管护壁“三板斧”.

Application of a new calculation method for well casing cathodic protection

套管阴极保护的一种新计算方法及其应用