IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
UP-0366078
(2006-03-02)
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| 등록번호 |
US-7836946
(2011-01-22)
|
|
발명자
/ 주소 |
- Bailey, Thomas F.
- Chambers, James W.
- Hannegan, Don M.
- Gravouia, Mark F.
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| 출원인 / 주소 |
|
| 대리인 / 주소 |
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| 인용정보 |
피인용 횟수 :
42 인용 특허 :
326 |
초록
▼
A system and method for reducing wear to radial seals in a rotating control device. The seals may be cooled by a thermal transfer fluid circulating through a passageway making more than one pass. Also, the differential pressure between multiple seals may be regulated and lowered, thereby increasing
A system and method for reducing wear to radial seals in a rotating control device. The seals may be cooled by a thermal transfer fluid circulating through a passageway making more than one pass. Also, the differential pressure between multiple seals may be regulated and lowered, thereby increasing seal life.
대표청구항
▼
We claim: 1. A thermal transfer system adapted for use with a rotating control head, comprising: a first member movable relative to a second member; one of the members having a thermal transfer surface; a first seal positioned with one of the members for sealing the first member with the second mem
We claim: 1. A thermal transfer system adapted for use with a rotating control head, comprising: a first member movable relative to a second member; one of the members having a thermal transfer surface; a first seal positioned with one of the members for sealing the first member with the second member while the first member moves relative to the second member; a thermal transfer fluid circulated with at least one of the members; said second member defining a passageway formed to extend around the thermal transfer surface more than once; and the thermal transfer surface transferring thermal units through the thermal transfer fluid in said passageway circulated around the thermal transfer surface. 2. The system of claim 1 further comprising: a seal carrier; the thermal transfer surface comprises a surface of the seal carrier; the seal carrier being a component of one of the members; and the first seal positioned with the seal carrier for sealing the first member with the second member while the first member moves relative to the second member. 3. The system of claim 2, wherein said passageway comprises: a spiral slot. 4. The system of claim 3 wherein the spiral slot circulates a unidirectional flow of the thermal transfer fluid. 5. The system of claim 2 further comprising a port formed in the seal carrier to communicate with the first seal and to regulate the pressure of the fluid on the first seal. 6. The system of claim 2 further comprising a second seal positioned with the seal carrier and for sealing the first member and the second member. 7. The system of claim 6 further comprising a port formed in the seal carrier to communicate with the first seal and the second seal and to regulate the pressure of the fluid between the first seal and the second seal. 8. The system of claim 6 further comprising the first seal allowing a first flow of the thermal transfer fluid to pass by the first seal, and the second seal allowing a second flow of the thermal transfer fluid to pass by the second seal, wherein the second flow is greater than the first flow. 9. The system of claim 6 wherein one of the seals allows flow of fluid at a first pressure and the other seal allows flow of fluid at a second pressure, wherein the first pressure is higher than the second pressure. 10. The system of claim 1, wherein said passageway comprises: a spiral slot. 11. The system of claim 10 wherein the spiral slot circulates a unidirectional flow of the thermal transfer fluid. 12. The system of claim 1 further comprising: at least one bearing in fluid communication with the first member and the second member. 13. The system of claim 12 wherein the thermal transfer fluid communicates with the at least one bearing. 14. The system of claim 12 further comprising a tubular wherein one of the members having a bore sized to receive the tubular. 15. The system of claim 12 wherein the at least one bearing comprising: a radial bearing, and a thrust bearing. 16. The system of claim 1 wherein the thermal transfer fluid is an unctuous combustible substance that is at least liquefiable on warming. 17. The system of claim 1 further comprising a port formed in one of the members to communicate with the first seal and to regulate the pressure of the fluid on the first seal. 18. The system of claim 1 further comprising a second seal positioned with one of the members and for sealing the first member and the second member. 19. The system of claim 18 further comprising a port formed in one of the members to communicate with the first seal and the second seal and to regulate the pressure of the fluid between the first seal and the second seal. 20. The system of claim 18 further comprising the first seal allowing a first flow of the thermal transfer fluid to pass by the first seal, and the second seal allowing a second flow of the thermal transfer fluid to pass by the second seal, wherein the second flow is greater than the first flow. 21. The system of claim 18 wherein one of the seals allows flow of fluid at a first pressure and the other seal allows flow of fluid at a second pressure, wherein the first pressure is higher than the second pressure. 22. A system adapted for use with a rotating control head, comprising: a first member movable relative to a second member; a passageway formed in one of said members; a unidirectional flow of a fluid in said passageway for circulating the fluid into, with and out of the rotating control head; a first seal positioned with one of the members for providing a predetermined flow value of the fluid between the first member and the second member; and a port formed in one of the members, the port communicating with the first seal to regulate the fluid flowing by the first seal. 23. The system of claim 22 further comprising a second seal positioned with the first member and the second member, wherein one of the seals allows flow of fluid at a first pressure and the other seal allows flow of fluid at a second pressure. 24. The system of claim 22 further comprising a second seal positioned with the first member and the second member, wherein the first seal allowing a first flow of the fluid to pass by the first seal, and the second seal allowing a second flow of the fluid to pass by the second seal, wherein the second flow is different than the first flow. 25. A thermal transfer system adapted for use with a rotating control head, comprising: a first member movable relative to a second member; one of the members having a thermal transfer surface; a first seal positioned with one of the members for sealing the first member with the second member while the first member moves relative to the second member; a second seal positioned with one of the members for sealing the first member with the second member, wherein the first seal allows flow of fluid at a first pressure and the second seal allows flow of fluid at a second pressure different than the first pressure; a thermal transfer fluid circulated with at least one of the members; said second member defining a passageway formed to extend about the thermal transfer surface; and the thermal transfer surface transferring thermal units through a unidirectional flow of the thermal transfer fluid in said passageway traversing about the thermal transfer surface. 26. The system of claim 25, wherein said passageway comprises a spiral slot formed on one of the members adjacent the thermal transfer surface. 27. A thermal transfer system adapted for use with a rotating control head, comprising: a first member movable relative to a second member; a seal carrier having a thermal transfer surface; the seal carrier being a component of one of the members; a first seal positioned with the seal carrier for sealing the first member and the second member; a thermal transfer fluid circulated with at least one of the members; said second member defining a passageway formed to extend around the thermal transfer surface more than once; and the thermal transfer surface transferring thermal units through the thermal transfer fluid in said passageway adjacent the first seal. 28. The system of claim 27, wherein the first seal positioned with the seal carrier for sealing the first member with the second member while the first member moves relative to the second member. 29. The system of claim 27, wherein said passageway comprises: a tortuous path formed on one of the members adjacent the first seal. 30. The system of claim 29, wherein the tortuous path comprise: a spiral slot adjacent the first seal. 31. The system of claim 30 wherein said passageway comprises a spiral slot that circulates a unidirectional flow of the thermal transfer fluid. 32. The system of claim 29 wherein the tortuous path circulates a unidirectional flow of the thermal transfer fluid. 33. The system of claim 27 further comprising: at least one bearing in fluid communication with the first member and the second member. 34. The system of claim 33 wherein the thermal transfer fluid communicates with the at least one bearing. 35. The system of claim 27 wherein the thermal transfer fluid is a liquid. 36. The system of claim 35 wherein the liquid is an unctuous combustible substance. 37. The system of claim 27 wherein the thermal transfer fluid is a gas. 38. The system of claim 27 further comprising a port formed in one of the members to communicate with the first seal and to regulate the pressure of the fluid on the first seal. 39. The system of claim 27 further comprising a second seal positioned with one of the members and for sealing the first member and the second member. 40. The system of claim 39 further comprising a port formed in one of the members to communicate with the first seal and the second seal and to regulate the pressure of the fluid between the first seal and the second seal. 41. The system of claim 39 further comprising the first seal allowing a first flow of the thermal transfer fluid to pass by the first seal, and the second seal allowing a second flow of the thermal transfer fluid to pass by the second seal, wherein the second flow is greater than the first flow. 42. The system of claim 39 wherein one of the seals allows flow of fluid at a first pressure and the other seal allows flow of fluid at a second pressure, wherein the first pressure is higher than the second pressure. 43. The system of claim 27 further comprising a port formed in the seal carrier to communicate with the first seal and to regulate the pressure of the fluid on the first seal. 44. The system of claim 27 further comprising a second seal positioned with the seal carrier and for sealing the first member and the second member. 45. The system of claim 44 further comprising a port formed in the seal carrier to communicate with the first seal and the second seal and to regulate the pressure of the fluid between the first seal and the second seal. 46. The system of claim 44 further comprising the first seal allowing a first flow of the thermal transfer fluid to pass by the first seal, and the second seal allowing a second flow of the thermal transfer fluid to pass by the second seal, wherein the second flow is greater than the first flow. 47. The system of claim 44 wherein one of the seals allows flow of fluid at a first pressure and the other seal allows flow of fluid at a second pressure, wherein the first pressure is higher than the second pressure. 48. A system adapted for use with a rotating control head, comprising: a first member movable relative to a second member; a passageway formed in one of said members; a unidirectional flow of a fluid in said passageway for circulating the fluid with the rotating control head; one of the members having a seal carrier; a first seal positioned with the seal carrier for sealing the first member with the second member while providing a predetermined flow value of the fluid between the first member and the second member; and a port formed in the seal carrier, the port communicating with the first seal to regulate the fluid flowing by the first seal. 49. The system of claim 48 further comprising a second seal positioned with the first member and the second member, wherein one of the seals allows flow of fluid at a first pressure and the other seal allows flow of fluid at a second pressure. 50. The system of claim 48 further comprising a second seal positioned with the first member and the second member, wherein the first seal allowing a first flow of the fluid to pass by the first seal, and the second seal allowing a second flow of the fluid to pass by the second seal, wherein the second flow is different than the first flow. 51. A thermal transfer system adapted for use with a rotating control head, comprising: a first member movable relative to a second member; one of the members having a thermal transfer surface; a first seal positioned with one of the members for sealing the first member with the second member; a second seal positioned with one of the members for sealing the first member with the second member, wherein the first seal allows flow of fluid at a first pressure and the second seal allows flow of fluid at a second pressure different than the first pressure; a thermal transfer fluid circulated with at least one of the members; said second member defining a passageway formed to extend around the thermal transfer surface more than once; and the thermal transfer surface transferring thermal units through the thermal transfer fluid in said passageway adjacent the first seal and the second seal. 52. The system of claim 51, wherein said passageway comprises a spiral slot formed on one of the members that extends around the thermal transfer surface adjacent the first seal and the second seal more than once. 53. A thermal transfer system adapted for use with a first member rotatable relative to a second member, comprising: the second member having a seal carrier; the seal carrier having a surface adjacent to a portion of the second member; the second member having at least one passageway adjacent to the seal carrier surface; and the at least one passageway extending more than once around the seal carrier surface. 54. The system of claim 53 wherein the seal carrier having a seal. 55. The system of claim 53 wherein the passageway is a spiral slot formed with one of the members. 56. A thermal transfer system adapted for use with a first member rotatable relative to a second member, comprising: the second member having a seal carrier; the seal carrier having a surface adjacent to a portion of the second member; the second member having at least one passageway defined by the seal carrier surface; and the at least one passageway extending a distance equal to more than once around the seal carrier along a tortuous path on the seal carrier surface. 57. A thermal transfer system adapted for use with a first member rotatable relative to a second member, comprising: the second member having a seal carrier; the seal carrier being adjacent to the first member; at least one passageway in the second member defined by the seal carrier; and the at least one passageway making at least one revolution around the seal carrier wherein the passageway comprises a spiral slot formed with one of the members. 58. A thermal transfer system adapted for use with a rotating control head, comprising: a first member movable relative to a second member; the second member having a seal carrier; the seal carrier being adjacent to the first member; at least one passageway in the second member defined by the seal carrier; and the at least one passageway making at least more than one revolution around the seal carrier. 59. A thermal transfer system adapted for use with a rotating control head, comprising: a first member movable relative to a second member; a first seal positioned with one of the members for sealing the first member with the second member; and a second seal positioned with one of the members for sealing the first member with the second member, wherein the first seal allows flow of fluid at a first predetermined pressure and the second seal allows flow of fluid at a second predetermined pressure different than the first predetermined pressure.
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