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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0893391 (2010-09-29) |
등록번호 | US-8844652 (2014-09-30) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 3 인용 특허 : 361 |
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
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.
1. A system for forming a borehole using a rotatable tubular, the system comprising: a housing disposed above the borehole, wherein said housing having a height and a port;a bearing assembly having an inner member and an outer member and being removably positioned with said housing, wherein said inn
1. A system for forming a borehole using a rotatable tubular, the system comprising: a housing disposed above the borehole, wherein said housing having a height and a port;a bearing assembly having an inner member and an outer member and being removably positioned with said housing, wherein said inner member configured to be rotatable with the tubular relative to the outer member, said inner member having a passage through which the tubular may extend;a bearing assembly rotating plate rotatably disposed with said housing and configured to rotate between a blocking position blocking removal of said bearing assembly from said housing, and an access position configured for removal of said bearing assembly from said housing while said bearing assembly rotating plate remains disposed with said housing;a seal configured to sealably engage the rotatable tubular with said bearing assembly; anda plurality of bearings disposed between said inner member and said outer member. 2. The system of claim 1, further comprising an attachment member for attaching said housing with a lower member, wherein said housing having a blocking shoulder, said attachment member having a blocking shoulder, and said attachment member blocking shoulder positioned with said housing blocking shoulder to attach said housing with said lower member. 3. The system of claim 1, wherein said housing further comprising a flange having an outer diameter and a flange port, said housing port communicating with said flange port, and said housing flange outer diameter being at least seventy percent of said housing height. 4. The system of claim 1, further comprising: a support member for supporting said seal with said bearing assembly, wherein said seal being removable from said bearing assembly; anda seal retainer ring rotatably disposed with said bearing assembly and configured to rotate between a blocking position blocking removal of said seal from said bearing assembly, and an access position configured for removal of said seal retainer ring from said bearing assembly to allow removal of said seal from said bearing assembly after removal of said seal retainer ring. 5. The system of claim 1, further comprising: a support member supporting said seal with said bearing assembly, wherein said support member threadedly attached with said bearing assembly; anda seal locking ring threadedly disposed with said bearing assembly and configured to rotate between a locked position blocking removal of said seal from said bearing assembly, and an access position configured for allowing removal of said seal locking ring from said bearing assembly to allow removal of said seal from said bearing assembly after removal of said seal locking ring. 6. The system of claim 1, further comprising: a plurality of accumulators completely disposed radially inwardly in said housing and configured to lubricate at least one of said plurality of bearings, and each of said accumulators spaced apart from each other accumulator and disposed radially outward from said plurality of bearings. 7. The system of claim 1, further comprising: a plurality of rollers disposed between said housing and said bearing assembly rotating plate; anda bearing assembly retainer plate disposed with said housing and configured to block removal of said bearing assembly rotating plate from said housing. 8. The system of claim 1, wherein said bearing assembly rotating plate rotatably disposed with said housing, the system further comprising: a lock member movable between a locked position to block relative rotation between said bearing assembly rotating plate and said housing, and an unlocked position to allow relative rotation between said bearing assembly rotating plate and said housing. 9. The system of claim 1, wherein said housing having an opening for radial access to said bearing assembly rotating plate, said housing access opening sized to receive a rod to be connected with said bearing assembly rotating plate. 10. The system of claim 1, wherein said bearing assembly outer member further comprising a plurality of tabs corresponding with a plurality of slots in said housing. 11. A rotating control apparatus, comprising: a bearing assembly having an outer member and an inner member disposed with said outer member, said inner member having a passage;a seal supported from said inner member and with the passage;a plurality of bearings disposed between said outer member and said inner member so that one member is rotatable relative to the other member;said seal extending radially inward from said plurality of bearings;a support member for supporting said seal with said bearing assembly, wherein said seal being removable from said bearing assembly;a seal retainer ring rotatably disposed with said bearing assembly and configured to rotate between a blocking position blocking removal of said seal from said bearing assembly, and an access position configured for removal of said seal retainer ring from said bearing assembly to allow removal of said seal from said bearing assembly after removal of said seal retainer ring;a housing to receive at least a portion of said bearing assembly, wherein said housing having a height and a housing port; anda housing flange having an outer diameter and a flange port, wherein said housing port communicating with said housing flange port. 12. The apparatus of claim 11, further comprising: a bearing assembly rotating plate rotatably disposed with said housing and configured to rotate between a blocking position blocking removal of said bearing assembly from said housing, and an access position configured for removal of said bearing assembly from said housing while said bearing assembly rotating plate remains disposed with said housing. 13. The system of claim 11, further comprising: wherein said support member threadedly attached with said bearing assembly; and a seal locking ring threadedly disposed with said bearing assembly and configured to rotate between a locked position blocking removal of said seal from said bearing assembly, and an access position configured for allowing removal of said seal locking ring from said bearing assembly to allow removal of said seal from said bearing assembly after removal of said seal locking ring. 14. The apparatus of claim 11, further comprising: a plurality of accumulators completely disposed radially inwardly in said housing and configured to lubricate at least one of said plurality of bearings, and each of said accumulators spaced apart from each other accumulator and disposed radially outward from said plurality of bearings. 15. The apparatus of claim 11, wherein said housing flange outer diameter being at least seventy percent of said housing height. 16. A system for managing the pressure of a fluid in a borehole while sealing a rotatable tubular, the system comprising: a housing communicating with the borehole, said housing having a height and a housing port;a bearing assembly having an outer member and a rotatable inner member having a passage through which the tubular may extend, said bearing assembly removably disposed with said housing;a plurality of bearings between said inner member and said outer member;a seal supported by said inner member for sealing with the rotatable tubular;said housing port communicating with and aligned with said seal;a support member for removably supporting said seal with said inner member; anda seal retainer ring rotatably disposed with said inner member and configured to rotate between a blocking position blocking removal of said seal from said inner member, and an access position configured for removal of said seal retainer ring from said bearing assembly without moving said seal and to allow removal of said seal from said inner member after removal of said seal retainer ring. 17. The system of claim 16, wherein said housing further comprising a flange having a flange port with a flange port diameter, said housing port communicating with said flange port, and said flange port diameter being at least thirty percent of said housing height. 18. The system of claim 16, further comprising: a bearing assembly rotating plate rotatably disposed with said housing and configured to rotate between a blocking position blocking removal of said bearing assembly from said housing, and an access position configured for removal of said bearing assembly from said housing while said bearing assembly rotating plate remains disposed with said housing. 19. The system of claim 16, wherein said support member further comprising a plurality of tabs corresponding with a plurality of slots in said inner member. 20. The system of claim 16, wherein said seal retainer ring further comprising: a lock member movable between a locked position to block relative rotation between said seal retainer ring and said bearing assembly, and an unlocked position to allow relative rotation between said seal retainer ring and said bearing assembly. 21. A rotating control apparatus, the apparatus comprising: a housing having a housing height and a housing port;a bearing assembly having an inner member and an outer member and being removably positioned radially inwardly in said housing, wherein said inner member rotatable relative to the outer member and having a passage;a seal having a seal height supported from said bearing assembly;a plurality of bearings disposed between said inner member and said outer member; anda plurality of accumulators disposed in said bearing assembly and configured to lubricate at least one of said plurality of bearings, and each of said accumulators spaced apart from each other accumulator. 22. The apparatus of claim 21, wherein said seal height is greater than forty percent of said housing height. 23. The apparatus of claim 21, wherein each of said accumulators comprising a piston and a spring disposed in said bearing assembly outer member. 24. The apparatus of claim 21, wherein said plurality of accumulators comprising at least twenty accumulators spaced apart equidistance in said bearing assembly outer member. 25. The apparatus of claim 21, further comprising: a bearing assembly rotating plate rotatably disposed with said housing and configured to rotate between a blocking position blocking removal of said bearing assembly from said housing, and an access position configured for removal of said bearing assembly from said housing while said bearing assembly rotating plate remains disposed with said housing. 26. A method for assembling a rotating control device, comprising the steps of: aligning a bearing assembly rotating plate with a housing;moving a bearing assembly having an inner member and an outer member with bearings therebetween through said bearing assembly rotating plate and into the housing, wherein said bearing assembly inner member is rotatable relative to said bearing assembly outer member;rotating said bearing assembly rotating plate relative to said housing; andblocking removal of said bearing assembly from said housing after the step of rotating. 27. The method of claim 26, wherein the step of rotating is clockwise. 28. The method of claim 26, further comprising the steps of: rotating said bearing assembly rotating plate counterclockwise to an access position; andremoving said bearing assembly from said housing. 29. The method of claim 26, wherein said housing comprising a flange having a flange port, and further comprising the steps of: aligning said flange port; andattaching said housing with a lower member after the step of aligning said flange port. 30. The method of claim 26, further comprising the steps of: removably supporting a seal with said inner member with a seal support member;aligning a seal retainer ring with the bearing assembly;rotating said seal retainer ring relative to said inner member; andblocking removal of said seal from said inner member after the step of rotating said seal retainer ring. 31. The method of claim 30, further comprising the step of: locking said seal retainer ring with said inner member. 32. The method of claim 26, further comprising the step of: lubricating at least one of said bearings with one of a plurality of spaced apart accumulators disposed radially outward of said bearing assembly outer member. 33. A method for assembling a rotating control device, comprising the steps of: aligning a seal with a bearing assembly having an inner member and an outer member with bearings therebetween, wherein said bearing assembly inner member is rotatable relative to said bearing assembly outer member;supporting said seal from said inner member;aligning a seal retainer ring with said inner member;moving said seal retainer ring into said inner member;rotating said seal retainer ring relative to said inner member without rotating said seal supported from said inner member; andblocking removal of said seal from said inner member after the step of rotating. 34. The method of claim 33, wherein the step of rotating is counterclockwise. 35. The method of claim 33, further comprising the step of: rotating said seal retainer ring clockwise to an access position for removal of said seal retainer ring from said bearing assembly;removing said seal from said inner member after the step of rotating said seal retainer ring clockwise. 36. The method of claim 33, further comprising the steps of: rotating a bearing assembly rotating plate relative to said housing;blocking removal of said bearing assembly from said housing after the step of rotating said bearing assembly rotating plate; andallowing access for removal of said bearing assembly from said housing while said bearing assembly rotating plate remains disposed with said housing. 37. The method of claim 33, further comprising the step of: locking said seal retainer ring with said inner member.
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