Elimination of Fluid's Flow between Different Formations behind Casing

Goal: To restore the sealing capacity of the set cement behind to prevent any fluids flowing up or down the well bore via perforated interval, to improve the quality of cementing, and preserve the well productivity.

Achieved: By blocking pay zone with two components viscous-plastic system and subsequent cementing of the annulus with polymer-cement system.
This technology is used while work-over operations.