cementing

To solve the problem such as borehole wall hydration instability and loss circulation after displaced with the water-based drilling fluids when air drilling fluids finished the designing depth,which may occurs in the process of running casing and cementing,the ce.

为了解决空气钻井达到设计井深后,替入水基钻井液再下套管、注水泥固井面临井壁水化失稳和井漏等问题,第一次实施了空井正注水钻井液固井作业。

The inner and outer diameters of the simulated annulus wellbore are 0.

20,对环空井筒内水泥浆顶替过程进行了数值模拟,模拟环空井筒外径0。

Based on a major construction project in Shanghai,the ground consists of a silt clay layer in surface and underlying a sandy silt layer,the application of vacuum well dewatering technique in dynamic consolidation ground treatment is introduced.

结合上海市某重点工程地基处理项目,针对上部粉质粘土、下部砂质粉土的场地条件,研究了真空井点降水技术在强夯地基加固中的应用。