Downhole circulating valve having a metal-to-metal seal and method for operating same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9388663
APP PUB NO 20130255962A1
SERIAL NO

13745817

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A downhole circulating valve includes a generally tubular outer housing having an axially extending internal passageway including an internal seat and at least one generally radially extending opening formed through the housing intersecting the internal seat. A valve element is rotatably disposed within the internal passageway. The valve element has an axially extending internal bore and a head portion disposed at least partially within the internal seat. The head portion includes at least one generally radially extending seal element. The valve element has a first position relative to the housing, wherein the seal element is not aligned with the opening, thereby allowing fluid communication between the opening and the internal passageway. The valve element has a second position relative to the housing, wherein the seal element is aligned with the opening and wherein the seal element forms a metal-to-metal seal with the internal seat, thereby preventing fluid communication between the opening and the internal passageway.

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Patent Owner(s)

  • HALLIBURTON ENERGY SERVICES, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bayh,, III Russell Irving Carrollton, US 8 34
Collins, Leo G Farmers Branch, US 19 520
Reesing, David L Irving, US 12 628
Williamson, Jimmie Robert Carrollton, US 23 264

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