Pipes and tubular conduits – Repairing
Patent
1976-11-15
1978-01-10
Swisher, S. Clement
Pipes and tubular conduits
Repairing
73 405R, F16L 5518, G01M 328
Patent
active
040673499
ABSTRACT:
A method and apparatus for testing and repairing a subsurface conduit using an inflatable packer, wherein the packer includes a fluid filled pressure responsive means, and a fluid pressure conductor means for transmitting fluid pressure to a pressure indicating means located on one end of the packer. The packer is positioned in the conduit such that the fluid filled pressure responsive means is adjacent that portion of the conduit to be tested. The packer is then inflated to isolate the conduit portion to be tested. Air pressure may then be introduced through means in the packer to the isolated conduit portion, and the pressure observed on the pressure indicating means by a television camera located in the subsurface conduit. The packer also includes means for injecting chemical grouting material into a leak in the isolated portion of the conduit.
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patent: 3163529 (1964-12-01), Jewett
patent: 3168908 (1965-02-01), Zurbrigen et al.
patent: 3168909 (1965-02-01), Zurbrigen et al.
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patent: 3885091 (1975-05-01), Fish et al.
patent: 3943410 (1976-03-01), Kalberer
patent: 3946761 (1976-03-01), Thompson et al.
Austin Carl E.
Hamilton Ramon K.
Qualls W. L.
Gonzalez Floyd A.
Halliburton Company
Swisher S. Clement
Tregoning John H.
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