Method and apparatus for leak testing of pipe

Details Method and apparatus for leak testing of pipe Method and apparatus for leak testing of pipe

G - Physics

01

M

73/118

G01M 3/00 (2006.01)

Patent

CA 1213751

Method and Apparatus for Leak Testing of Pipe Abstract A method of testing pipe sections at an oil rig floor by means of an internal pipe testing tool and a pressurized gas containing helium in a ratio of helium to a carrier gas of at least about 1:2856 by volume. The gas is pressurized in a hydraulic accumulator remote from the rig floor. The pressurized gas actuates the test tool at substantially the same pressure as is used for testing the pipe section. A flexible enclosure con- fines the test gas which leaks from the pipe section. The enclosure defines a substantially annular chamber around the area to be tested to confine leakage test gas to prevent its dissipation into the atmosphere. An aperture is provided in the enclosure to permit a sens- ing probe to be inserted into the annular chamber between the enclosure and the pipe section to sense the presence of test gas.

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