PPCP provides an economical solution for durable,reliable and sealed casing patches to broken,damaged,split,corroded,leaking or dislocated casings.

　　It consists of three major components-firing head sub,propellant setting tool sub and patching sub.

　　How does it work?

　　Ignite propellant.

　　Drive the piston by the high pressure gas.

　　Activate the conic expanding mechanism.

　　Set up and seal the patching pipe with the base casing.