Invention Grant
- Patent Title: Low profile rotating control device
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Application No.: US14496681Application Date: 2014-09-25
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Publication No.: US10087701B2Publication Date: 2018-10-02
- Inventor: Thomas F Bailey , James W. Chambers , Don M. Hannegan , David R. Woodruff
- Applicant: Weatherford Technology Holdings, LLC
- Applicant Address: US TX Houston
- Assignee: Weatherford Technology Holdings, LLC
- Current Assignee: Weatherford Technology Holdings, LLC
- Current Assignee Address: US TX Houston
- Agency: Smith IP Services, P.C.
- Main IPC: E21B33/03
- IPC: E21B33/03 ; E21B33/08 ; E21B21/10 ; E21B33/06 ; E21B7/02 ; E21B21/00

Abstract:
A system and method is 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 LP-RCD and LP-RCD housing can fit within a limited space available on drilling rigs. An embodiment allows a LP-RCD to be removably disposed with a LP-RCD housing by rotating a bearing assembly rotating plate. A sealing element may be removably disposed with the LP-RCD bearing assembly by rotating a seal retainer ring. Alternatively, a sealing element may be removably disposed with the LP-RCD bearing assembly with a seal support member threadedly attached with the LP-RCD bearing assembly. The seal support member may be locked in position with a seal locking ring removably attached with threads with the LP-RCD bearing assembly over the seal support member. Spaced apart accumulators may be disposed radially outward of the bearings in the bearing assembly to provide self lubrication to the bearings.
Public/Granted literature
- US20150027688A1 INTERLOCKING LOW PROFILE ROTATING CONTROL DEVICE Public/Granted day:2015-01-29
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