Shawn P Mcclosky

US Patent:

20210207447, Jul 8, 2021

Filed:

Mar 25, 2021

Appl. No.:

17/212515

Inventors:

- Houston TX, US
Shawn Paul McClosky - Montgomery TX, US
George James Michaud - Katy TX, US
Alexander John MacGregor - Kirkcudbright, GB
Fukun Lai - Houston TX, US

International Classification:

E21B 21/08
E21B 33/08
F16J 15/02
F16J 15/06

Abstract:

A seal and bearing includes a seal and bearing housing, a rotatable mandrel disposed within an inner aperture of the seal and bearing housing, an upper seal carrier attached to a top side of the seal and bearing housing having a dynamic sealing element that contacts the rotatable mandrel, a plurality of tapered-thrust bearings to facilitate rotation of the rotatable mandrel including top tapered-thrust bearings indirectly mounted at a positive offset angle from a perpendicular line to a longitudinal axis of the rotating control device and bottom tapered-thrust bearings indirectly mounted at a negative offset angle from the perpendicular line to the longitudinal axis of the rotating control device, a preload spacer disposed between the top and bottom tapered-thrust bearings, and a lower seal carrier attached to a bottom side of the seal and bearing housing having a plurality of removable seal carrier trays.

US Patent:

20200362651, Nov 19, 2020

Filed:

Aug 4, 2020

Appl. No.:

16/984874

Inventors:

- Houston TX, US
Shawn Paul McClosky - Montgomery TX, US
George James Michaud - Katy TX, US
Alexander John MacGregor - Kirkcudbright, GB
Fukun Lai - Houston TX, US

International Classification:

E21B 21/08
E21B 33/08
F16J 15/02
F16J 15/06

Abstract:

A rotating control device includes a bowl housing with an inner aperture to receive a seal and bearing assembly. A plurality of hydraulically-actuated fail-last-position latching assemblies are disposed about an outer surface of the bowl housing to controllably extend a plurality of piston-driven dogs radially into a groove of the seal and bearing assembly. The seal and bearing assembly includes a housing, a mandrel disposed within an inner aperture of the housing, a first interference-fit sealing element attached to a bottom distal end of the mandrel, a plurality of tapered-thrust bearings indirectly mounted to the housing, a preload spacer disposed between top and bottom tapered-thrust bearings, a plurality of jam nuts to adjust a preload of the tapered-thrust bearings and a lower seal carrier attached to the seal and bearing housing comprising a plurality of dynamic sealing elements that contact the mandrel.

US Patent:

20200362659, Nov 19, 2020

Filed:

Aug 4, 2020

Appl. No.:

16/984831

Inventors:

- Houston TX, US
Shawn Paul McClosky - Montgomery TX, US
George James Michaud - Katy TX, US
Alexander John MacGregor - Kirkcudbright, GB
Fukun Lai - Houston TX, US

International Classification:

E21B 33/08
E21B 33/068

Abstract:

A rotating control device includes a bowl housing with an inner aperture to receive a seal and bearing assembly. A plurality of hydraulically-actuated fail-last-position latching assemblies are disposed about an outer surface of the bowl housing to controllably extend a plurality of piston-driven dogs radially into a groove of the seal and bearing assembly. The seal and bearing assembly includes a housing, a mandrel disposed within an inner aperture of the housing, a first interference-fit sealing element attached to a bottom distal end of the mandrel, a plurality of tapered-thrust bearings indirectly mounted to the housing, a preload spacer disposed between top and bottom tapered-thrust bearings, a plurality of jam nuts to adjust a preload of the tapered-thrust bearings, and a lower seal carrier attached to the seal and bearing housing comprising a plurality of dynamic sealing elements that contact the mandrel.