Selective bomb hanger

Details Selective bomb hanger Selective bomb hanger

1976-05-17

1977-04-19

Leppink, James A.

Wells

Expansible anchor or casing

Spring set

E21B 2300

Patent

active

040182770

ABSTRACT:
A well tubing hanger for suspending a pressure bomb, and/or temperature recording device or other equipment, in the tubing, from a selected tubing nipple, through a test period. It is a bomb hanger such that when the suspended equipment is in use for test surveys, the wire line used to run the tools is not left in the well, thereby achieving considerable savings, particularly when a plurality of wells in a field are surveyed. Hanger locking lugs are shifted radially outwardly into a position-selected matching nipple recess when brought into operational alignment therewith, after lug latch members have been released by unlocking upward movement engagement with a tubing nipple shoulder. A lug-locking sleeve is movable into lug locking position with the sleeve lockable by a ball recess lock interference fit. A resiliently-displaceable plunger structure permits a recess relief unlock for the balls, from the ball recess lock interference fit, and thereby permits unlock release movement of the tubular sleeve with the tool fishing neck for unlocking the locking lugs from the extended state.

REFERENCES:
patent: 2401119 (1946-05-01), Taylor, Jr.
patent: 2605843 (1952-08-01), Baker
patent: 3297083 (1967-01-01), Taylor
patent: 3446281 (1969-05-01), Watkins

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