Hydraulic set tubing hanger

Details Hydraulic set tubing hanger Hydraulic set tubing hanger

1976-06-11

1978-01-10

Leppink, James A.

Wells

Packers or plugs

With expanding anchor

166 85, 166208, 166212, E21B 2300, E21B 3303

Patent

active

040670627

ABSTRACT:
A tubing hanger for suspending multiple strings of tubing in a subsea wellhead or casing hanger upon being lowered from the drill vessel into a properly oriented seating position in the casing hanger. The tubing hanger is releasably secured to the casing hanger by hydraulic manipulation of the running tool after the tubing hanger has been oriented in the casing hanger. Thereafter, by further hydraulic manipulation, the running tool is released from the hydraulic set tubing hanger for retrieval to the drill ship. The running tool may later be returned and connected to the tubing hanger and, by further manipulation of the running tool, the hanger is disconnected from the casing hanger and elevated to the drill ship.

REFERENCES:
patent: 3321217 (1967-05-01), Ahlstone
patent: 3543847 (1970-12-01), Haeber
patent: 3688841 (1972-09-01), Baugh
patent: 3693714 (1972-09-01), Baugh
patent: 3807497 (1974-04-01), Baugh
patent: 3924678 (1975-12-01), Ahlstone

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