System and method for heat treating a tubular

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United States of America Patent

PATENT NO 10034330
SERIAL NO

13832404

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Abstract

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A system and method for heat treating a tubular. In one embodiment, a system for heat treating a tubular includes a first coil and a second coil. The first coil is configured to circumferentially surround the tubular and induce, from without the tubular, current flow in a cylindrical portion of the tubular adjacent the first coil. The second coil is configured to be inserted into a bore of the tubular and induce, from within the tubular, in conjunction with the first coil, current flow in the cylindrical portion of the tubular.

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Patent Owner(s)

Patent OwnerAddress
NATIONAL OILWELL VARCO L P10353 RICHMOND AVENUE HOUSTON TX 77042

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cunningham, Shawn Lee Pearland, US 2 2
Hannahs, Daniel Lyle Houston, US 2 2
Stevenson, Daryl Cypress, US 5 3
Wyble, Kevin Joseph Spring, US 3 4

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