Well head isolation tool sealing nipple testing apparatus and me

Details Well head isolation tool sealing nipple testing apparatus and me Well head isolation tool sealing nipple testing apparatus and me

1993-12-13

1995-03-14

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166 88, 166191, 166380, 166387, 166337, E21B 1900, E21B 2300, E21B 3303, E21B 3304

Patent

active

053969561

ABSTRACT:
A wellhead isolation tool nipple seal testing apparatus includes an upper seal, upper nipple, and a lower seal and a lower nipple, the lower nipple being attached to the upper nipple. Test pressure forced between the upper and lower seals may be used to test the upper nipple up to well servicing pressures. The lower nipple may seal the well bore by being closed, or by the use of a mandrel carrying a seal on its lower end or with a burst disk.

REFERENCES:
patent: 2621743 (1952-12-01), Johnston
patent: 2726723 (1955-12-01), Wilhoit et al.
patent: 4241786 (1980-12-01), Bullen
patent: 4601494 (1986-07-01), McLeod
patent: 4632183 (1986-12-01), McLeod
patent: 4691770 (1987-09-01), McLeod
patent: 4867243 (1989-09-01), Garner
patent: 4993488 (1991-02-01), McLeod
patent: 4993489 (1991-02-01), McLeod
patent: 5103900 (1992-04-01), McLeod

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