Measuring and testing – With fluid pressure – Leakage
Patent
1978-07-17
1979-05-08
Queisser, Richard C.
Measuring and testing
With fluid pressure
Leakage
73 491, G01M 328
Patent
active
041529243
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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Queisser Richard C.
Roskos Joseph W.
Weaver D. Paul
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