DETERMINING ELECTRICAL CHARACTERISTICS OF AN ELECTRICAL CABLE
First Claim
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1. A method of characterizing an electrical cable that is deployed in a well, comprising:
- applying a voltage input to the electrical cable at an earth surface location, wherein the well extends from the earth surface location;
measuring a current response in the electrical cable resulting from the voltage input, wherein the current response is measured at the earth surface location; and
computing at least one parameter of the electrical cable according to the measured current response.
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Abstract
To characterize an electrical cable that is deployed in a well, a voltage input is applied to the electrical cable at an earth surface location, where the well extends from the earth surface location. A current response resulting from the voltage input is measured at the earth surface location. At least one parameter of the electrical cable is computed according to the measured current response.
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Citations
25 Claims
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1. A method of characterizing an electrical cable that is deployed in a well, comprising:
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applying a voltage input to the electrical cable at an earth surface location, wherein the well extends from the earth surface location; measuring a current response in the electrical cable resulting from the voltage input, wherein the current response is measured at the earth surface location; and computing at least one parameter of the electrical cable according to the measured current response. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus comprising:
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a voltage input source to apply a step voltage to a first end of an electrical cable; and a cable parameter estimator coupled to the voltage input source, the cable parameter estimator to; measure a current response of the electrical cable resulting from the applied step voltage, wherein the current response is measured at the first end of the electrical cable; compute at least one parameter of the electrical cable according to the current response. - View Dependent Claims (16, 17, 18, 19, 20)
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21. An article comprising at least one storage medium containing instructions that when executed cause a computer to:
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receive a voltage input applied at a first end of an electrical cable; receive a current response measured at the first end of the electrical cable and that results from the applied voltage input; and compute at least one parameter of the electrical cable according to the current response. - View Dependent Claims (22, 23, 24, 25)
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Specification