Review of existing and proposed technologies for locating leaks during hydrostatic testing of buried gas transmission pipelines was performed. Articles, reports, and patents having information on leak location were catalogued. Potential technologies were evaluated for further development. Techniques which merit further attention include: 1) Injecting trace gas in the test water; 2) Searching for the maximum acoustic emission signal strength that corresponds to the leak site; 3) Ground radar for detection of water leaks; and 4) Modifying an instrumented pig used in sewer lines for gas pipeline ...
Review of existing and proposed technologies for locating leaks during hydrostatic testing of buried gas transmission pipelines was performed. Articles, reports, and patents having information on leak location were catalogued. Potential technologies were evaluated for further development. Techniques which merit further attention include: 1) Injecting trace gas in the test water; 2) Searching for the maximum acoustic emission signal strength that corresponds to the leak site; 3) Ground radar for detection of water leaks; and 4) Modifying an instrumented pig used in sewer lines for gas pipeline leak detection.