... 侧流道泵壳；旋涡泵泵体 casing with transfer passages 侧流道泵壳；旋涡泵泵体 annular casing 长轴深井泵 borehole shaft driven(centrifugal) pump ...
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annular casing pump 环壳泵 ; 圆壳式离心泵
annular casing pump coupling 环壳泵联轴器
annular r casing 环形壳体
annular air casing 环形空气室
casing annular 套管环空
annular r casing pump 圆壳式离心泵
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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