- Special tool for pumping slurry and releasing plug.The ZSC-A Single Cavity Cement Plug Set can be connected with Drill pipe.
- The milling bit rotates during the bit drilling cement plug and the milling head cuts the edge of the plug to form cement column.
- But the two stage tools used to so far are mostly required to drill the rubber plug or cement plug out after the cementing job is done.
- Engineers are worried that CO2- laden brine, which is acidic, could find its way from an injection well to an abandoned well and thereupon corrode the cement plug and leak to the surface.
- Superfine cement plugging technology is an effective way to plug thief zone, to reduce water production and/or invalid water injection, and to improve oil displacement efficiency of injected water.
- The paper develops embrasure plugging a-gent(FD-2) with high strength according to the present problem that cement plugs embrasure.