1) floating hoop and shoe
浮箍浮鞋
1.
To apply oil industry special purposed floating hoop and shoe on coalmine service borehole casing lowering and consolidation,the main issue need to be solved is how to automatically open the valve,let the slurry pass through when the pumping pressure rising to 2MPa,otherwise the valve will be in off state all along.
将石油专用浮箍浮鞋用于煤矿服务钻孔的下管及固井工作中,需要解决的主要问题是如何使其在泵压达到2MPa时,阀门自动打开,容许浆液通过,否则阀门始终处于关闭状态。
2) float collar
浮箍
1.
The configuration and principle of anti rotary plug and necessary float collars and their applications in intermediate casing cementing are introduced.
介绍了防转胶塞及配套浮箍的结构、原理和在技术套管固井中的应用情况。
4) casing float collar
套管浮箍
5) ball float collar
球形浮箍
6) limited end float coupling
限流浮箍
补充资料：头箍
1.一种妇女束发用具。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条