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US 2019/0162872 A1Published application
System and Method of Estimating Leakage Current Distribution Along Long Conductor Extending into the Earth
AssigneeGroundMetrics, Inc.
InventorsH. Frank MORRISON, Michael WILT, Greg NIEUWENHUIS
Life of this patent
Estimating the term…
Abstract
A system measures and/or estimates the distribution of current flowing in or on a Long Conductor, such as a borehole casing. This allows greater precision in data interpretation and in calculating input to geologic models.
Claims23
A method of estimating a leakage current distribution along at least a portion of a long conductor extending into the earth, said method comprising:
- transmitting current from a source to a long conductor having a length and extending into the earth so that current leaks from the long conductor and creates a leakage current distribution from the long conductor;
- taking a series of measurements related to the current with sensors wherein at least some of the sensors are:
- located at space locations on or in the long conductor;
- or extend away from the long conductor for a distance approximately equal to the length of the conductor;
- and
- determining the leakage current distribution along the long conductor from the series of measurements.
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A system for estimating a leakage current distribution along at least a portion of a long conductor extending into the earth, said system comprising:
- a long conductor having a length and extending into the earth;
- a source electrically or inductively connected to the long conductor and configured to transmit current along the long conductor so that current leaks from the long conductor and creates a leakage current distribution from the long conductor;
- sensors located at spaced locations relative to the long conductor and configured to take a series of measurements related to the current, wherein at least some of the sensors are:
- located at space locations on or in the long conductor;
- or extend away from the long conductor for a distance approximately equal to the length of the conductor;
- and
- a computer system configured to determine the leakage current distribution along the long conductor from the series of measurements.
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Dependencies are inferred from the claim text.