two-stage cementing

基本解释

The two-stage cementing technique was used for the protective casing of the horizonal well in Tahe oil field because of a long open-hole interval in secondary spudding.
塔河油田水平井由于第二次开钻裸眼段长，技术套管采用双级固井技术。
Wells with weak formation in a certain section is required to be cemented from the bottom to the surface, and a two-stage cementing, separable setting cement slurry technology should be used.
但由于用于低密度水泥浆中的漂珠生产量降低，价格上升，研究应用替代产品是固井技术发展的方向。
By adopting cement slurry system ZJ-2 of low fluid loss and zero water precipitation, combining the use of cementing technique of two-stage setting and double killing, the cementing job is smoothly .
该井通过采用ZJ-2低失水、零析水水泥浆体系配合双凝双压固井工艺，固井施工顺利，全井主要封固段固井质量良好。

双级注水泥
Secondly, in the cementing technology research, a series of cementation completiontechnology has been studied and developed, including expanding cement cementation, low-densitycement cementation, deep slant well cementation, fly ash cementation, two-stage cementing cementation,highly-deviated well cementation, etc.
其次在固井技术方面,以平衡压力固井技术为中心,研究和发展了非渗透水泥固井、膨胀水泥固井、低密度水泥固井、深斜井固井、粉煤灰固井、双级注水泥固井、大位移井固井等一系列固井完井技术。
地球科学
双级固井