Sub-sea equipment test and isolation tool

Details Sub-sea equipment test and isolation tool Sub-sea equipment test and isolation tool

1981-03-10

1983-02-15

Howell, Kyle L.

Measuring and testing

With fluid pressure

Leakage

73 491, G01M 328

Patent

active

RE0311480

ABSTRACT:
A combined test and isolation tool for sub-sea well equipment is used particularly for testing the integrity of internal sealing surfaces of sub-sea well head housings and also for testing casing hangers and their seals. The same tool is run on drill pipe in a sub-sea well to isolate a casing hanger seal from components of the well blow-out preventer to determine accurately and with finality where a detected leak originates. The use of the tool enables costly well head housings, casing hangers and seals normally discarded following a single usage to be reused with safety and efficiency and at a great savings in cost.

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patent: 3503249 (1970-03-01), Dumond
patent: 3712115 (1973-01-01), Miller
patent: 3787226 (1974-01-01), Iglehart et al.
patent: 4081990 (1978-04-01), Chatagnier

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