Patent · US Active

Remote operation of a rotating control device bearing clamp

US8739863B2 · kind B2 · utility

6Cited by
117References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 18, 2011
Grant dateJun 3, 2014
Priority date
Expiry dateJan 1, 2032

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16B2200/509
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

An RCD can include a housing assembly containing a bearing assembly and a rotating seal which seals an annulus between a tubular string and a body of the RCD, and a remotely operable clamp device which selectively permits and prevents displacement of the housing assembly relative to the body. A method of remotely operating a clamp device can include rotating a threaded member which is secured relative to an RCD body, and displacing a clamp section in response to the threaded member rotation, thereby selectively securing and releasing a bearing assembly and an annular seal relative to the body. Another RCD can include a rotating seal which seals an annulus between a tubular string and a body of the RCD, and a remotely operable clamp device which selectively permits and prevents access to an interior of the body, the clamp device including a motor which rotates a threaded member.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.