1) return sand
循环砂
2) circle sand washing
循环冲砂
1.
Under the situation of blocking and bridge-up during the course of casing in Guan Well 7 and nor- mal casing can not being carried out after bridge-up removal,according to analyses,the plan of repeating circle sand washing,up-lifting-down-laying,casing by force,less casing and more circulating are adopted and finally the case are set at prearranged depth.
官7井在下技套中途遇卡,在解卡后不能正常下技套的情况下,经过分析研究,采用了循环冲砂、上提下放、强下、少下多循环、重复进行的方案,最终将套管下至预定深度。
3) circulation of sand
砂料循环
4) sand recirculation filter
循环砂滤池
5) system sand
循环处理砂
6) velocity of sand circulation
砂循环速率
补充资料：冲砂液
分子式：
CAS号：
性质：又称冲砂液，冲洗液。用来冲洗井壁，清除井内沉渣或淤砂的流体。一般由表面活性剂及溶剂组成，并添加增黏剂和降滤失剂以调整其性能。
CAS号：
性质：又称冲砂液，冲洗液。用来冲洗井壁，清除井内沉渣或淤砂的流体。一般由表面活性剂及溶剂组成，并添加增黏剂和降滤失剂以调整其性能。
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