annular casing pump 环壳泵 ; 圆壳式离心泵
annular casing pump coupling 环壳泵联轴器
annular air casing 环形空气室
casing annular 套管环空
The material used to permanently seal annular Spaces between casing and borehole walls.
用于永久封隔套管和井壁之间的环型空间的材料。
It connects with threads on both ends of pipe body, which allows a smaller casing O. D. and increases annular gap to facility casing running in and improve cementing quality.
无接箍式套管靠管体两端的螺纹连接，所以套管外径尺寸小，可增大环形间隙，便于套管下入和提高固井质量。
A continuous 360-degree annular space around casing allows cement to completely seal the casing to the borehole wall.
围绕套管的四周360度的环型空间允许水泥完全能够密封套管与井壁。
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