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1. (WO2018045331) SYSTEM AND METHOD OF ESTIMATING LEAKAGE CURRENT DISTRIBUTION ALONG LONG CONDUCTOR EXTENDING INTO THE EARTH

Pub. No.:    WO/2018/045331    International Application No.:    PCT/US2017/049936
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Sat Sep 02 01:59:59 CEST 2017
IPC: G01V 3/20
G01V 3/30
G01V 3/38
G01F 1/66
E21B 47/12
Applicants: GROUNDMETRICS, INC.
Inventors: MORRISON, H., Frank
WILT, Michael
NIEUWENHUIS, Greg
Title: SYSTEM AND METHOD OF ESTIMATING LEAKAGE CURRENT DISTRIBUTION ALONG LONG CONDUCTOR EXTENDING INTO THE EARTH
Abstract:
A system measures and/or estimates the distribution of current flowing in or on a long conductor, such as a borehole casing. More specifically, the present invention provides a method for obtaining an accurate measurement or estimate of the electrical current along the long conductor and, in turn, of the current leaving the long conductor. This allows greater precision in data interpretation and in calculating input to geologic models.