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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0740705 (2013-01-14) |
등록번호 | US-8714240 (2014-05-06) |
발명자 / 주소 |
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출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 0 인용 특허 : 358 |
A system and method for reducing repairs to radial seals used in a rotating control head used while drilling is disclosed. Also, a system and method to detect leaks in the rotating control head and a latching system to latch the rotating control head to a housing is disclosed.
1. A method for cooling a first seal configured for sealing a first member moveable relative to a second member in a rotating control head, comprising: circulating a cooling medium through a passageway between the first member and the second member of the rotating control head adjacent to the first
1. A method for cooling a first seal configured for sealing a first member moveable relative to a second member in a rotating control head, comprising: circulating a cooling medium through a passageway between the first member and the second member of the rotating control head adjacent to the first seal; andconfiguring the passageway so the cooling medium circulates relative to the first seal more than once for multiple passes of the cooling medium adjacent to the first seal. 2. The method of claim 1 further comprising the step of: spiraling the cooling medium about the first seal in the rotating control head. 3. The method of claim 1 wherein the cooling medium is a substance that is liquefiable on warming. 4. The method of claim 1 further comprising a second seal and further comprising the step of sealing between the first member that is moveable relative to the second member in the rotating control head with the first seal and the second seal. 5. The method of claim 4 further comprising the step of: regulating the pressure between the first seal and the second seal. 6. The method of claim 4 further comprising the step of: allowing a flow of fluid to pass the second seal at a different rate than a flow of fluid pass the first seal. 7. The method of claim 1 wherein a rotating control head, comprising: one of the members having a thermal transfer surface;the first seal positioned with one of the members for sealing the first member and the second member while the first member moves relative to the second member;the cooling medium including a thermal transfer fluid circulated with at least one of the members; andthe thermal transfer surface configured to transfer thermal units through the multiple passes of the thermal transfer fluid adjacent the terminal transfer surface. 8. The method of claim 7 further comprising a second seal positioned with one of the members and for sealing the first member and the second member. 9. The method of claim 8 further comprising the first seal allowing a first predetermined flow of the thermal transfer fluid to pass by the first seal, and the second seal allowing a second predetermined flow of the thermal transfer fluid to pass by the second seal and the second predetermined flow is different than the first predetermined flow. 10. The method of claim 8 wherein one of the seals allows flow of fluid at a first predetermined pressure and the other seal allows flow of fluid at a second predetermined pressure different than the first predetermined pressure. 11. A method for cooling a first seal and a second seal in a rotating control head, comprising: circulating a cooling medium through the rotating control head adjacent to the first seal more than once;regulating the cooling medium relative to the first seal; andsealing between a first member that moves relative to a second member in the rotating control head with the first seal and the second seal wherein one of the seals allows flow of fluid at a first predetermined pressure and the other seal allows flow of fluid at a second predetermined pressure, the first predetermined pressure is different than the second predetermined pressure. 12. The method of claim 11, wherein the fluid is the cooling medium. 13. The method of claim 11 further comprising the step of: spiraling the cooling medium about the first seal in the rotating control head. 14. The method of claim 11 further comprising a seal carrier to hold the first seal and wherein the cooling medium flows in a passageway making at least one revolution around the seal carrier. 15. The method of claim 11, wherein the fluid and the cooling medium are oil. 16. The method of claim 15 further comprising the step of: allowing flow of fluid to pass the second seal at a different flow rate than the flow of fluid pass the first seal. 17. The method of claim 11 further comprising the step of: regulating the pressure between the first seal and the second seal. 18. The method of claim 11, further comprising bearings between the first member and the second member, wherein the fluid and the cooling medium are oil used to pressure the bearings. 19. A method for cooling a first seal configured for sealing a first member moveable relative to a second member in a rotating control head, comprising: circulating a cooling medium unidirectionally through a passageway between the first member and the second member of the rotating control head adjacent to the first seal; andconfiguring the passageway so the cooling medium circulates adjacent to the first seal. 20. The method of claim 19 further comprising the step of: circulating the cooling medium about the first seal in the rotating control head more than once. 21. The method of claim 19 further comprising a second seal and further comprising the step of sealing between the first member that moves relative to the second member in the rotating control head with the first seal and the second seal; andallowing flow of fluid to pass the second seal at a different rate than the flow of fluid pass the first seal. 22. A method for cooling a first seal in a rotating control head, comprising: circulating a cooling medium through the rotating control head with multiple passes adjacent to the first seal; andspiraling the cooling medium about the first seal in the rotating control head. 23. A method for cooling a first seal configured for sealing a first member moveable relative to a second member in a rotating control head, comprising: circulating a cooling oil through a passageway between the first member and the second member of the rotating control head adjacent to the first seal; andconfiguring the passageway so the cooling oil passes relative to the first seal more than once adjacent to the first seal. 24. The method of claim 23 further comprising the step of: spiraling the cooling oil about the first seal in the rotating control head. 25. The method of claim 23 wherein the cooling oil is liquefiable on warming. 26. The method of claim 23 further comprising a second seal and further comprising the step of sealing between the first member that is moveable relative to the second member in the rotating control head with the first seal and the second seal. 27. The method of claim 26 further comprising the step of: regulating the pressure between the first seal and the second seal. 28. The method of claim 26 further comprising the step of: allowing a flow of the oil to pass the second seal at a different rate than a flow of the oil pass the first seal. 29. The method of claim 23 wherein a rotating control head, comprising: one of the members having a thermal transfer surface;the first seal positioned with one of the members for sealing the first member and the second member while the first member moves relative to the second member;the cooling oil is a thermal transfer oil circulated with at least one of the members; andthe thermal transfer surface transferring thermal units through the multiple passes of the thermal transfer oil adjacent the terminal transfer surface. 30. The method of claim 29 further comprising a second seal positioned with one of the members and for sealing the first member and the second member. 31. The method of claim 30 further comprising the first seal allowing a first predetermined flow of the thermal transfer oil to pass by the first seal, and the second seal allowing a second predetermined flow of the thermal transfer oil to pass by the second seal and the second predetermined flow is different than the first predetermined flow. 32. The method of claim 30 wherein one of the seals allows flow of the oil at a first predetermined pressure and the other seal allows flow of the oil at a second predetermined pressure different than the first predetermined pressure. 33. A method for cooling a first seal and a second seal in a rotating control head, comprising: circulating a cooling medium through the rotating control head adjacent to the first seal more than once;regulating the cooling medium relative to the first seal; andsealing between a first member that moves relative to a second member in the rotating control head with the first seal and the second seal wherein one of the seals allows flow of an oil at a first predetermined pressure and the other seal allows flow of said oil at a second predetermined pressure, the first predetermined pressure is different than the second predetermined pressure. 34. The method of claim 33, wherein said oil is the cooling medium. 35. The method of claim 33 further comprising the step of: spiraling the cooling medium about the first seal in the rotating control head. 36. The method of claim 33 further comprising a seal carrier to hold the first seal and wherein the cooling medium flows in a passageway making at least one revolution around the seal carrier. 37. The method of claim 33 further comprising the step of: regulating the pressure between the first seal and the second seal. 38. The method of claim 33 further comprising the step of: allowing flow of said oil to pass the second seal at a different flow rate than the flow of said oil pass the first seal. 39. The method of claim 33, further comprising bearings between the first member and the second member, wherein the cooling medium is said oil used to lubricate the bearings. 40. A method for cooling a first seal configured for sealing an inner member moveable relative to an outer member in a rotating control head, comprising: circulating a cooling medium unidirectionally through a passageway between the said inner member and said outer member of the rotating control head adjacent to the first seal; andconfiguring the passageway so the cooling medium passes adjacent to the first seal. 41. The method of claim 40 further comprising the step of: circulating the cooling medium about the first seal in the rotating control head more than once. 42. The method of claim 40 further comprising a second seal and further comprising the step of sealing between said inner member that moves relative to said outer member in the rotating control head with the first seal and the second seal; andallowing flow of fluid to pass the second seal at a different rate than the flow of fluid pass the first seal. 43. A method for cooling a first annular seal in a rotating control head, comprising: circulating a cooling medium through the rotating control head with multiple passes adjacent to the first annular seal; andspiraling the cooling medium about the first annular seal in the rotating control head. 44. A method for cooling a first seal and a second seal in a rotating control head, comprising: circulating a cooling medium through the rotating control head with multiple passes adjacent to the first seal;regulating the cooling medium relative to the first seal;sealing between a first member that moves relative to a second member in the rotating control head with the first seal and the second seal; andallowing a flow of fluid to pass the second seal at a different rate than a flow of fluid pass the first seal. 45. The method of claim 44, wherein the fluid is the cooling medium. 46. The method of claim 44 further comprising the step of: spiraling the cooling medium about the first seal in the rotating control head. 47. The method of claim 44 wherein the cooling medium is a substance that is liquefiable on warming. 48. The method of claim 44 further comprising the step of: regulating the pressure between the first seal and the second seal. 49. The method of claim 44 wherein a rotating control head, comprising: one of the members having a thermal transfer surface;the first seal positioned with one of the members for sealing the first member and the second member while the first member moves relative to the second member;the cooling medium including a thermal transfer fluid circulated with at least one of the members; andthe thermal transfer surface configured to transferring thermal units through the multiple passes of the thermal transfer fluid adjacent the terminal transfer surface. 50. The method of claim 49 further comprising the first seal allowing a first predetermined flow of the thermal transfer fluid to pass by the first seal, and the second seal allowing a second predetermined flow of the thermal transfer fluid to pass by the second seal and the second predetermined flow is different than the first predetermined flow. 51. The method of claim 49 wherein one of the seals allows flow of fluid at a first predetermined pressure and the other seal allows flow of fluid at a second predetermined pressure different than the first predetermined pressure. 52. The method of claim 44 further comprising a seal carrier to hold the first seal and wherein the cooling medium flows in a passageway making at least one revolution around the seal carrier. 53. The method of claim 44, wherein the fluid and the cooling medium are oil. 54. The method of claim 44, further comprising bearings between the first member and the seal member, wherein the fluid and the cooling medium are oil used to pressure the bearings.
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