Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – For fault location
Patent
1991-10-25
1993-02-23
Harvey, Jack B.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
For fault location
324527, 324532, G01R 3111, G01R 3112
Patent
active
051893746
ABSTRACT:
A method of analyzing an electrically conductive member, such as a well casing, where one end of the member is more accessible, and a second end of the member is less accessible. A first electrical pulse is transmitted along the well casing toward a lower end of the well casing, where the first pulse is reflected as a reflected pulse to travel back up the casing. A second pulse is transmitted down through the well casing to intersect with the reflected pulse, after which the reflected pulse is detected and analyzed to determine conditions along the well casing. The timing of the pulses its synchronized so that the point of intersection is stepped along the well casing.
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Do Diep
Harvey Jack B.
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