METHOD FOR LOCATING AND ESTIMATING CHARACTERISTIC SIZE OF LEAK POINT ON SUBSURFACE PIPELINE Russian patent published in 2003 - IPC

Abstract RU 2206817 C1

FIELD: instrumentation engineering. SUBSTANCE: method includes displacement of receiver along subsurface pipeline route, periodic sequential measurement of electromagnetic field strength at point of interest made minimum twice, determination of error signal of two sequential measurements, integration of error signal, division of error signal by integrated error signal, comparison of value obtained with desired threshold value, and location of leak point on subsurface pipeline in case measurement result exceeds desired threshold value. EFFECT: enhanced reliability of locating and identifying electromagnetic radiation leak in subsurface pipeline. 1 cl, 3 dwg

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RU 2 206 817 C1

Authors

Dikarev V.I.

Rogalev V.A.

Karmazinov F.V.

Denisov G.A.

Dates

2003-06-20Published

2001-10-11Filed