E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/068 (2006.01)
Patent
CA 2720023
An isolation sleeve extends from an adapter into the bore of a tubing head to isolate high pressure frac fluid from the body of the tubing head. The isolation sleeve may be installed by a running tool that can screw the sleeve onto a packoff bushing located within the tubing head. The running tool can also retrieve the isolation sleeve by unscrewing it from the packoff bushing.
Borak Eugene A.
Olvera Alfredo
Craig Wilson And Company
Vetco Gray Inc.
LandOfFree
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