IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0975946
(2007-10-23)
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등록번호 |
US-8286734
(2012-10-16)
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발명자
/ 주소 |
- Hannegan, Don M.
- Bailey, Thomas F.
- Chambers, James W.
- Woodruff, David R.
- Harrall, Simon J.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
28 인용 특허 :
326 |
초록
▼
A system and method are 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 outer diameter of the lateral outlet flange may be substantially the same as the height of the LP-RCD housi
A system and method are 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 outer diameter of the lateral outlet flange may be substantially the same as the height of the LP-RCD housing and bearing assembly after the bearing assembly is positioned with the LP-RCD housing. The sealing element may be aligned with the lateral outlet, and may be replaced from above. Different embodiments of attachment members for attaching the LP-RCD housing with a lower housing allow the LP-RCD housing to be rotated to align the lateral outlet with the drilling rig's existing line to mud pits or other locations. In one embodiment, the LP-RCD bearings are positioned radially inside the LP-RCD housing. In another embodiment, the LP-RCD bearings are positioned radially outside the LP-RCD housing. One embodiment allows rotation of the inserted tubular about multiple planes. In still another embodiment, an annular BOP seal is integral with a RCD housing.
대표청구항
▼
1. A system for forming a borehole using a rotatable tubular, the system comprising: a housing having a height and disposed above the borehole, said housing having a lateral port;a bearing assembly having an inner member and an outer member and being positioned with said housing, one of said members
1. A system for forming a borehole using a rotatable tubular, the system comprising: a housing having a height and disposed above the borehole, said housing having a lateral port;a bearing assembly having an inner member and an outer member and being positioned with said housing, one of said members rotatable with the tubular relative to the other said member and one of said members having a longitudinal passage through which the tubular may extend;a seal having a height to sealably engage the rotatable tubular with said bearing assembly;a plurality of bearings disposed between said inner member and said outer member;a flange having an outer diameter and a port, wherein said housing lateral port communicating with said flange port;a conduit disposed between said housing port and said flange, wherein said conduit having a width perpendicular to a height, and wherein said conduit width being greater than said conduit height at said housing port;a lower member above the borehole; andan attachment member for attaching said housing to said lower member,wherein said housing lateral port is in alignment with said seal; andwherein said bearing assembly partially blocks said lateral port. 2. The system of claim 1, wherein the lower member is an annular blowout preventer. 3. The system of claim 1, wherein said flange outer diameter is substantially the same as said height of said housing and said bearing assembly after said bearing assembly is positioned with said housing. 4. The system of claim 1, wherein said flange outer diameter is at least eighty percent of said housing height of said housing and said bearing assembly after said bearing assembly is positioned with said housing. 5. The system of claim 4, wherein said seal being fabricated from a rubber and said seal height is greater than fifty percent of said height of said housing and said bearing assembly after said bearing assembly is positioned with said housing. 6. The system of claim 5, wherein said flange outer diameter is at least eighty percent of said housing height of said housing and said bearing assembly after said bearing assembly is positioned with said housing. 7. The system of claim 1, wherein said conduit width and said conduit height being equal at said flange. 8. The system of claim 1, further comprising: said seal being fabricated from a rubber; anda non-rubber support member for supporting said rubber seal with one of said members, wherein said non-rubber supporting member allows removal of said rubber seal from both of said inner member and said outer member. 9. The system of claim 1, wherein said flange port having a flange port diameter that is at least fifty percent of said housing height of said housing and said bearing assembly after said bearing assembly is positioned with said housing. 10. The system of claim 1, wherein said flange port having a flange port diameter that is at least fifty percent of said housing height of said housing and said bearing assembly after said bearing assembly is positioned with said housing. 11. The system of claim 1, wherein said attachment member having a plurality of openings for alignment with said lower member. 12. The system of claim 1, further comprising: a rod having a rod thread disposed in one of said plurality of openings; anda nut removably positioned with said rod thread,wherein said rod and said nut disposed between said conduit and said lower member. 13. A rotating control apparatus, comprising: an outer member;an inner member disposed with said outer member, said inner member having a longitudinal passage;a seal having a height and supported from one of said members 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 inwardly from the plurality of bearings;a housing having a height to receive at least a portion of said inner member and said outer member and said housing having a lateral port;a flange having an outer diameter and a port, wherein said housing port communicating with said flange port while being aligned with said seal, wherein said flange outer diameter is at least eighty percent of said housing height; anda conduit disposed between said housing port and said flange, wherein said conduit having a width perpendicular to a height, and wherein said conduit width being greater than said conduit height at said housing port. 14. The apparatus of claim 13, further comprising an attachment member for attaching said housing to a lower member. 15. The apparatus of claim 13, wherein said flange outer diameter is substantially the same as said housing height. 16. The apparatus of claim 15, wherein said flange port having a flange port diameter that is at least fifty percent of said housing height. 17. The apparatus of claim 13, wherein said seal height is greater than fifty percent of said housing height. 18. The apparatus of claim 17, wherein said flange port having a flange port diameter that is at least fifty percent of said housing height. 19. The apparatus of claim 13, wherein said seal being fabricated from a rubber and said seal height is greater than fifty percent of said housing height. 20. The apparatus of claim 13, further comprising an attachment member for attaching said housing to a lower member, wherein said conduit width is greater than said conduit height for said conduit positioned above said attachment member, and said flange port is substantially circular. 21. The apparatus of claim 13, wherein said housing lateral port, and said flange port, each defining a flow area and all of said flow areas being aligned with said seal. 22. The apparatus of claim 13, wherein said flange port having a flange port diameter that is at least fifty percent of said housing height. 23. The apparatus of claim 13, wherein said attachment member having a plurality of openings for alignment of said housing with said lower member. 24. The apparatus of claim 23, further comprising: a rod having a rod thread disposed in one of said plurality of openings; anda nut removably positioned with said rod thread,wherein said rod and said nut disposed between said conduit and said lower member. 25. A system for managing the pressure of a fluid in a borehole while sealing a rotatable tubular, the system comprising: a housing having a height and communicating with the borehole, said housing having a lateral port defining a flow area;an outer member having an end rotatably adapted with an inner member having an end and having a longitudinal passage through which the tubular may extend;a plurality of bearings between said inner member and said outer member;a seal fabricated from a rubber having a height and supported by one of said members and configured for sealing with the rotatable tubular;said housing lateral port communicating with said rubber seal;a non-rubber support member for removably supporting said rubber seal with one of said members end wherein said rubber seal having height so that said seal height is greater than fifty percent of said housing height, wherein said rubber seal is aligned with all of said housing lateral port flow area;a flange having a port defining a flow area, wherein said housing lateral port communicating with said flange port and all of said flange port flow area and all of said housing lateral port flow area aligned with said seal; anda conduit disposed between said housing lateral port and said flange, wherein said conduit having a width perpendicular to a height, and wherein said conduit width being greater than said conduit height at said housing port. 26. The system of claim 25, further comprising: an attachment member for attaching said housing to a lower member. 27. The system of claim 25, wherein said conduit width is greater than said conduit height for said conduit positioned above said attachment member, and said flange port is substantially circular. 28. The system of claim 27, wherein said housing lateral port, said flange port and said conduit each having a flow area and all of said flow areas being aligned with said seal. 29. The system of claim 25, wherein said conduit is flexible. 30. The system of claim 25, wherein said flange having a flange outer diameter and wherein said flange outer diameter is at least eighty percent of said housing height. 31. The system of claim 25, wherein said flange having a flange outer diameter and wherein said flange outer diameter is substantially the same as said housing height. 32. The system of claim 25, wherein said flange having a flange outer diameter and wherein said flange outer diameter is at least eighty percent of said housing height. 33. The system of claim 25, wherein said flange port having a flange port diameter that is at least fifty percent of said housing height. 34. The system of claim 25, wherein said flange port having a flange port diameter. 35. The system of claim 25, wherein said attachment member having a plurality of openings for alignment with said lower member. 36. The system of claim 35, further comprising: a rod having a rod thread disposed in one of said plurality of openings; anda nut removably positioned with said rod thread,wherein said rod and said nut disposed between said conduit and said lower member. 37. A rotating control apparatus, comprising: an outer member;an inner member disposed with said outer member, said inner member having a longitudinal passage;a seal having a height and supported from one of said members 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 inwardly from the plurality of bearings;a housing having a height to receive at least a portion of said inner member and said outer member and said housing having a lateral port;a flange having an outer diameter and a port, wherein said flange port having a flange port diameter and wherein said housing port communicating with said flange port diameter while being aligned with said seal wherein said flange port diameter is at least fifty percent of said housing height; anda conduit disposed between said housing port and said flange, wherein said conduit having a width perpendicular to a height wherein said conduit width being greater than said conduit height at said housing lateral port. 38. The apparatus of claim 37, wherein said flange outer diameter is substantially the same as said housing height. 39. The apparatus of claim 37, wherein said flange outer diameter is at least eighty percent of said housing height. 40. The apparatus of claim 37, wherein said seal height is greater than fifty percent of said housing height. 41. The apparatus of claim 37, wherein said housing lateral port, and said flange port each defining a flow area and all of said flow areas being aligned with said seal. 42. The apparatus of claim 37, further comprising an attachment member for attachment of said housing with a lower member. 43. The apparatus of claim 42, wherein said conduit width is greater than said conduit height for said conduit positioned above said attachment member, and said flange port is substantially circular. 44. The system of claim 43, wherein said attachment member having a plurality of openings for alignment with said lower member. 45. The system of claim 44, further comprising: a rod having a rod thread disposed in one of said plurality of openings; anda nut removably positioned with said rod thread,wherein said rod and said nut disposed between said conduit and said lower member. 46. A system for forming a borehole using a rotatable tubular, the system comprising: a housing having a height and disposed above the borehole, said housing having a lateral port defining a flow area;a bearing assembly having an inner member and an outer member and being positioned with said housing, one of said members rotatable with the tubular relative to the other said member and one of said members having a longitudinal passage through which the tubular may extend;a seal aligned with all of said housing lateral port flow area and having a height to sealably engage the rotatable tubular with said bearing assembly;a plurality of bearings disposed between said inner member and said outer member;a flange having an outer diameter and a port, wherein said housing port communicating with said flange port;a lower member above the borehole;an attachment member for attaching said housing to said lower member;wherein said flange outer diameter is at least eighty percent of said housing height of said housing and said bearing assembly after said bearing assembly is positioned with said housing; anda conduit disposed between said housing port and said flange, wherein said conduit having a width perpendicular to a height, and wherein said conduit width being greater than said conduit height at said housing lateral port. 47. A system for managing the pressure of a fluid in a borehole while sealing a rotatable tubular, the system comprising: a housing having a height and communicating with the borehole, said housing having a lateral port;an outer member having an end rotatably adapted with an inner member having an end and having a longitudinal passage through which the tubular may extend;a plurality of bearings between said inner member and said outer member;a seal having a height and supported by one of said members for sealing with the rotatable tubular;said housing port communicating with and aligned with said seal;a support member configured for threadably supporting said seal with said inner member;a flange having an outer diameter and a port, wherein said flange port having a flange port diameter and wherein said housing port communicating with said flange port while being aligned with said seal wherein said flange port diameter is at least fifty percent of said housing height anda conduit disposed between said housing port and said flange, wherein said conduit having a width perpendicular to a height, and wherein said conduit width being greater than said conduit height at said housing lateral port. 48. The system of claim 47, further comprising: an attachment member for attaching said housing to a lower member. 49. The system of claim 48, wherein said attachment member having a plurality of openings for alignment with said lower member. 50. The system of claim 49, further comprising: a rod having a rod thread disposed in one of said plurality of openings; anda nut removably positioned with said rod thread,wherein said rod and said nut disposed between said conduit and said lower member. 51. A rotating control apparatus, comprising: an outer member;an inner member disposed with said outer member, said inner member having a longitudinal passage;a seal having a height and supported from one of said members and with the passage, wherein said seal height is greater than fifty percent of said housing height;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 inwardly from the plurality of bearings;a housing having a height to receive at least a portion of said inner member and said outer member and said housing having a lateral port;a flange having an outer diameter and a port,wherein said housing port communicating with said flange port while being aligned with said seal,wherein said flange outer diameter is at least eighty percent of said housing height, anda conduit disposed between said housing port and said flange, wherein said conduit having a width perpendicular to a height, and wherein said conduit width being greater than said conduit height at said housing port. 52. The system of claim 51, further comprising an attachment member for aligning said housing, wherein said attachment member having a plurality of openings for alignment with said lower member. 53. The system of claim 52, further comprising: a rod having a rod thread disposed in one of said plurality of openings; anda nut removably positioned with said rod thread,wherein said rod and said nut disposed between said conduit and said lower member.
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