Method for detecting leaks in underground product lines

Details Method for detecting leaks in underground product lines Method for detecting leaks in underground product lines

1992-12-11

1994-06-07

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

G01M 328

Patent

active

053178998

ABSTRACT:
An improved method for detecting small leaks in underground pressurized piping systems is disclosed. In particular, the method comprises the steps of taking pressure measurements over identical time intervals from a product line at a pressure above the pump discharge pressure while the product pump is running. Thereafter, the absolute value of the difference between successive pressure decays is calculated and compared to an acceptable value. Next, the value of the latest pressure decay value is compared to acceptable and unacceptable values reflecting acceptable and unacceptable tightness of the product line.

REFERENCES:
patent: 2928247 (1960-03-01), Hubbell
patent: 2952387 (1960-09-01), Fowler et al.
patent: 2952390 (1960-09-01), Fowler et al.
patent: 2979939 (1961-04-01), Shuh
patent: 3183723 (1965-05-01), Deters
patent: 3261201 (1966-07-01), Pottash
patent: 3273753 (1966-09-01), Johnson et al.
patent: 3350704 (1967-10-01), Kessler
patent: 3439837 (1969-04-01), Hearn et al.
patent: 3454195 (1969-07-01), Deters
patent: 3505513 (1970-04-01), Fowler et al.
patent: 3664357 (1972-05-01), Kreiss
patent: 3692050 (1972-09-01), Deters
patent: 3702074 (1972-11-01), Mullen
patent: 3738531 (1973-06-01), Mitchell
patent: 3788127 (1974-01-01), Marsh
patent: 3866798 (1975-02-01), Marsh
patent: 3935567 (1976-01-01), Reynolds
patent: 3940020 (1976-02-01), McCrory et al.
patent: 3958449 (1976-05-01), Drescher et al.
patent: 3962905 (1976-06-01), Jouve
patent: 3966088 (1976-06-01), Reynolds
patent: 4012944 (1977-03-01), Covington et al.
patent: 4088985 (1978-05-01), Saito et al.
patent: 4088987 (1978-05-01), Resler et al.
patent: 4116044 (1978-09-01), Garrett
patent: 4131216 (1978-12-01), Gerstenmaier et al.
patent: 4144743 (1979-03-01), Covington et al.
patent: 4308746 (1982-01-01), Covington
patent: 4338812 (1982-07-01), Lindgren
patent: 4397405 (1983-08-01), Batson
patent: 4404842 (1983-09-01), Mooney
patent: 4410109 (1983-10-01), Murrell et al.
patent: 4496077 (1985-01-01), Zuehlsdorf
patent: 4586033 (1986-04-01), Andrejasich
patent: 4608857 (1986-09-01), Mertens et al.
patent: 4644354 (1987-02-01), Kidd
patent: 4658986 (1987-04-01), Freed et al.
patent: 4712097 (1987-12-01), Hashimoto
patent: 4715214 (1987-12-01), Tveter et al.
patent: 4721950 (1988-01-01), Andrejasich et al.
patent: 4876530 (1989-10-01), Hill et al.
patent: 5072621 (1991-12-01), Hasselmann
patent: 5090234 (1992-02-01), Maresca, Jr. et al.
patent: 5152167 (1992-10-01), Moody
patent: 5201212 (1993-04-01), Williams
Installation & Operation Guide for Series 3000 Underground Storage Tank and Pressurized Pipe Monitoring System; Technical Manual; Revised Oct. 1990; pp. 1-1 through 7-106.

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