Leonard Charles Linde

US Patent:

20120125636, May 24, 2012

Filed:

Nov 18, 2011

Appl. No.:

13/300320

Inventors:

Leonard Charles LINDE - Casper WY, US
Fredrick D. CURTIS - Houston TX, US
Derrick W. LEWIS - Conroe TX, US
Joseph Michael KARIGAN - Carrollton TX, US
Mike HARVEY - Granite Shoals TX, US
Neal G. SKINNER - Lewisville TX, US
Matthew H. WIGGINS - Spring TX, US
Patrick LOOPER - Odessa TX, US

Assignee:

HALLIBURTON ENERGY SERVICES, INC. - Houston TX

International Classification:

E21B 23/00
E21B 19/00

US Classification:

166382, 166 781

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.

US Patent:

20120125633, May 24, 2012

Filed:

Nov 18, 2011

Appl. No.:

13/300335

Inventors:

Leonard C. LINDE - Casper WY, US
Reece E. CASHION - Conroe TX, US
Larry D. WHITE - Brenham TX, US

Assignee:

HALLIBURTON ENERGY SERVICES, INC. - Houston TX

International Classification:

E21B 23/00

US Classification:

166381, 1662416

Abstract:

An RCD can include a housing assembly which contains a bearing assembly and an annular seal which rotates and seals off an annulus between a tubular string and an RCD body, a remotely operable clamp device which selectively permits and prevents relative displacement between the housing assembly and the body, and a remotely operable safety latch which selectively permits and prevents unclamping of the clamp device. A method of remotely operating an RCD clamp device can include remotely operating a safety latch which selectively permits and prevents unclamping of the clamp device, and remotely operating the clamp device while the safety latch is in an unlatched position, thereby unclamping a bearing housing assembly from the RCD body. Another RCD can include a remotely operable clamp device which selectively permits access to an RCD body interior, and a remotely operable safety latch which selectively prevents unclamping of the clamp device.