Combination hydraulic tubing hanger and chemical injection sub

Details Combination hydraulic tubing hanger and chemical injection sub Combination hydraulic tubing hanger and chemical injection sub

1991-10-04

1992-12-08

Novosad, Stephen J.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166 87, 166212, 166310, 166382, E21B 3414, E21B 3706, E21B 4102, E21B 4301

Patent

active

051689332

ABSTRACT:
A mudline tubing hanger is disclosed in which the tubing hanger is provided as an integral part of the tubing string and is set within the casing by an hydraulic setting mechanism driven through an external control line and actuated by a wireline shifted sleeve. Further manipulation of the sleeve isolates the setting mechanism from the tubing and external control line, establishing a chemical injection conduit with access to the tubing bore through the external control line.

REFERENCES:
patent: 4270606 (1981-06-01), McStravick et al.
patent: 4306624 (1981-12-01), Bernard et al.
patent: 4388970 (1983-06-01), Setterberg, Jr.
patent: 4637469 (1987-01-01), Spriggs et al.
patent: 4708202 (1987-11-01), Sukup et al.

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