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US 12,607,113 B2Granted
Downhole tubular inspection using partial-saturation eddy currents
AssigneeHalliburton Energy Services, Inc.
InventorsAhmed Elsayed Fouda, Junwen Dai, Freeman Lee Hill, III, Christopher Michael Jones
Life of this patent
Estimating the term…
Abstract
A system for inspecting a tubular may comprise an electromagnetic (EM) logging tool and information handling system. The EM logging tool may further include a mandrel, one or more sensor pads attached to the mandrel by one or more extendable arms, and one or more partial saturation eddy current sensors disposed on each of the one or more sensor pads.
Claims18
A downhole tubular inspection tool, comprising:
- a tool body configured for lowering through a first downhole tubular on a conveyance;
- a proximity sensor coupled to the tool body;
- a plurality of extendable arms coupled to the tool body;
- a plurality of sensor pads coupled to the plurality of extendable arms, respectively;
- and
- a controller configured to measure an eccentricity of the first downhole tubular based on:
- a plurality of extensions of the plurality of extendable arms, respectively;
- and
- a plurality of distance measurements between the proximity sensor and the plurality of sensor pads, wherein the plurality of distance measurements is obtained from the proximity sensor.
6 more elements
A downhole tubular inspection tool, comprising:
- a tool body configured for lowering through a first downhole tubular on a conveyance;
- a plurality of extendable arms coupled to the tool body;
- a plurality of proximity sensors coupled to the plurality of extendable arms, respectively;
- and
- a controller configured to:
- based on a plurality of extensions of the plurality of extendable arms, obtain, from the plurality of proximity sensors, a first plurality of distance measurements between the plurality of proximity sensors and a first wall of the first downhole tubular;
- and
- based on the first plurality of distance measurements, measure an eccentricity of the first downhole tubular.
5 more elements
A method for measuring eccentricities of downhole tubulars, comprising:
- lowering, via a conveyance, a tubular inspection tool into a first downhole tubular, the tubular inspection tool comprising a tool body and one or more proximity sensors coupled to the tool body;
- initiating, by a controller, an extension of an extendable arm from the tubular inspection tool, the extendable arm comprising a plurality of sensor pads;
- obtaining, by the controller, from the one or more proximity sensors, a proximity measurement based on the extension of the extendable arm, wherein the proximity measurement is indicative of a distance between the one or more proximity sensors and the plurality of sensor pads;
- and
- measuring, by the controller, an eccentricity of the first downhole tubular using the proximity measurement.
2 more elements
Dependencies are inferred from the claim text.