Low profile rotating control device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8286734
APP PUB NO 20090101411A1
SERIAL NO

11975946

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system and method are provided for a low profile rotating control device (LP-RCD) and its housing mounted on or integral with an annular blowout preventer seal, casing, or other housing. The outer diameter of the lateral outlet flange may be substantially the same as the height of the LP-RCD housing and bearing assembly after the bearing assembly is positioned with the LP-RCD housing. The sealing element may be aligned with the lateral outlet, and may be replaced from above. Different embodiments of attachment members for attaching the LP-RCD housing with a lower housing allow the LP-RCD housing to be rotated to align the lateral outlet with the drilling rig's existing line to mud pits or other locations. In one embodiment, the LP-RCD bearings are positioned radially inside the LP-RCD housing. In another embodiment, the LP-RCD bearings are positioned radially outside the LP-RCD housing. One embodiment allows rotation of the inserted tubular about multiple planes. In still another embodiment, an annular BOP seal is integral with a RCD housing.

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Patent Owner(s)

Patent OwnerAddress
WELLS FARGO BANK NATIONAL ASSOCIATION1525 WEST W T HARRIS BLVD CHARLOTTE NC 28262

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bailey, Thomas F Houston, US 116 6284
Chambers, James W Hackett, US 51 1844
Hannegan, Don M Fort Smith, US 39 2207
Harrall, Simon J Houston, US 37 1627
Woodruff, David R Fort Smith, US 4 371

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