Method and apparatus for detecting leaks

Details Method and apparatus for detecting leaks Method and apparatus for detecting leaks

1988-03-28

1989-06-13

Levy, Stewart J.

Measuring and testing

With fluid pressure

Leakage

73 492, G01M 320

Patent

active

048380733

ABSTRACT:
In a method of testing the gas-tightness of walls defining a closed chamber a hollow member of resiliently flexible material is inserted into the chamber. A liquid is introduced into the hollow member until the hollow member substantially fills the chamber. A test gas is then introduced into the space defined between the hollow member and the chamber walls. Escape of any test gas from the chamber is then sensed by loss of gas pressure in the chamber or the presence of test gas outside the chamber. The presence of the liquid-filled hollow member reduces the amount of test gas needed and the associated risks and cost. The chamber may be defined between segments of oil well pipe casing connected by threaded sockets or it may be the space within a tank.

REFERENCES:
patent: 4055984 (1977-11-01), Marx
patent: 4524609 (1985-06-01), Sharp

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