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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0795129 (2004-03-05) |
등록번호 | US-7325610 (2008-02-05) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 71 인용 특허 : 468 |
The present invention provides a method and apparatus for handling tubulars and drilling with tubulars such as casing into a formation. In one aspect of the invention, the apparatus comprises a circulating head and a cementing head operatively connectible to a gripping member. The circulating head
The present invention provides a method and apparatus for handling tubulars and drilling with tubulars such as casing into a formation. In one aspect of the invention, the apparatus comprises a circulating head and a cementing head operatively connectible to a gripping member. The circulating head is used to circulate drilling fluid while drilling with casing, and the cementing head is used to cement the casing string within the formation at a desired depth. The present invention also relates to methods and apparatus for isolating a tensile load from a drilling apparatus rotated by a top drive. In one aspect, the present invention provides a load isolator apparatus having an isolator body operatively connected to the top drive and a torque body at least partially disposed in the isolator body. In operation, the bearing assembly transfers the tensile load from the torque body to the isolator body.
The invention claimed is: 1. A method of forming a wellbore comprising: operatively connecting a circulating head cementing tool to a gripping mechanism member and a top drive, the gripping mechanism member having a radially movable gripping element; gripping a first casing with the gripping mechan
The invention claimed is: 1. A method of forming a wellbore comprising: operatively connecting a circulating head cementing tool to a gripping mechanism member and a top drive, the gripping mechanism member having a radially movable gripping element; gripping a first casing with the gripping mechanism member; sealingly engaging the first casing with a circulating seal member; rotating the circulating head cementing tool, the gripping mechanism member, and the first casing; and lowering the first casing into the wellbore, wherein lowering the first casing into the formation comprises rotating an earth removal member operatively connected to a lower end of the first casing while introducing fluid through the first casing; operatively connecting a cementing plug to the circulating head cementing tool; gripping a second casing with the gripping mechanism member; and lowering the second casing into the wellbore. 2. The method of claim 1, further comprising: releasing a portion of the cementing plug to plug fluid flow through the second casing; and introducing a physically alterable bonding material into the second casing. 3. The method of claim 2, wherein the portion of the cementing plug comprises at least one plug, and wherein releasing the portion of the cementing plug comprises releasing the at least one plug from the remainder of the cementing plug. 4. The method of claim 1, wherein the cementing plug comprises at least one plug having a bore therethrough. 5. The method of claim 4, wherein the cementing plug comprises a mandrel slidable upon introduction of fluid behind the mandrel. 6. The method of claim 5, wherein the mandrel biases at least one valve in the bore of the at least one plug in an open position. 7. The method of claim 6, wherein sliding the mandrel a first length closes the at least one valve on the at least one plug. 8. The method of claim 5, wherein releasing the portion of the cementing plug comprises sliding the mandrel a first length to release the at least one plug from a remainder of the cementing plug. 9. The method of claim 1, further comprising: providing a compensator apparatus within the gripping mechanism member, the compensator apparatus operatively connected to the top drive; and allowing the gripping mechanism to translate coaxially with the compensator apparatus relative to the top drive. 10. The method of claim 1, further comprising: providing an isolator body operatively connected to a top drive, the gripping mechanism member at least partially disposed within the isolator body; and allowing relative rotation between the isolator body and the gripping mechanism member. 11. The method of claim 10, wherein the isolator body transfers a tensile load from the gripping mechanism member to the isolator body. 12. The method of claim 1, further comprising flowing a fluid through a valve while lowering the first tubular into the formation. 13. The method of claim 12, further comprising introducing a physically alterable bonding material through the second tubular. 14. The method of claim 13, further comprising disposing the cementing plug between the fluid and the bonding material. 15. The method of claim 14, further comprising releasing a second cementing plug, whereby one of the cementing plugs is ahead of the bonding material and the other cementing plug is behind the bonding material. 16. The method of claim 12, further comprising removing the valve before connecting the cementing plug. 17. The method of claim 12, wherein the valve is a check valve. 18. The method of claim 1, further comprising urging an actuator member into engagement with the cementing plug, thereby releasing the cementing plug from the gripping mechanism. 19. The method of claim 18, wherein the actuator member comprises a dart or ball. 20. The method of claim 1, further comprising rotating at least a portion of the second casing while introducing fluid through the first casing. 21. The method of claim 1, further comprising axially moving a least a portion of the second casing while introducing fluid through the first casing. 22. The method of claim 1, wherein the cementing tool is adapted to convey a drilling fluid or cement. 23. The method of claim 1, further comprising pumping a fluid through the top drive, gripping mechanism, and the circulating head cementing tool. 24. The method of claim 1, wherein the gripping elements comprise slips. 25. A method of cementing a casing Within a formation, comprising: providing the casing with an earth removal member located at a lower end; providing a gripping mechanism connected to a cementing assembly and a top drive; gripping the casing with the gripping mechanism; sealingly engaging the casing with a circulating seal member; rotating and lowering the earth removal member to a depth within the formation; and cementing the casing within the formation using the cementing assembly. 26. The method of claim 25, wherein the gripping mechanism is a torque head. 27. The method of claim 25, wherein the gripping mechanism is a spear. 28. The method of claim 25, wherein cementing the casing comprises selectively releasing at least one plug into the casing at least one plug located within the cementing assembly. 29. The method of claim 28, wherein the at least one plug is released by axial movement of a slidable mandrel disposed within the cementing assembly. 30. The method of claim 28, wherein the at least one plug is released by at least one ball selectively launched into a flow stream using a plug injector disposed above the cementing assembly. 31. The method of claim 25, wherein sealingly engaging the casing comprises urging a first circulating seal member against the casing. 32. The method of claim 31, wherein urging the first circulating seal member against the casing activates a second circulating seal member. 33. The method of claim 25, further comprising rotating the gripping mechanism while cementing. 34. The method of claim 25, wherein cementing is performed without releasing the gripping and sealing engagement of the casing. 35. The method of claim 31, further comprising rotating the gripping mechanism while cementing. 36. The method of claim 35, wherein the gripping mechanism is a spear. 37. The method of claim 35, wherein the gripping mechanism is a torque head. 38. The method of claim 35, wherein cementing the casing comprises selectively releasing at least one plug into the casing at least one plug located within the cementing assembly. 39. The method of claim 31, wherein cementing the casing comprises selectively releasing at least one plug into the casing at least one plug located within the cementing assembly. 40. An apparatus for use in drilling with casing, comprising: a top drive having a fluid path; a gripping member having radially movable gripping elements; and a cementing head and the gripping member fluidly connected to the fluid path and rotatable by an output shaft of the top drive, wherein the casing includes a drill bit. 41. The apparatus of claim 40, wherein the cementing head is rotationally fixed relative to the gripping member. 42. The apparatus of claim 40, further comprising a cup seal adapted to engage an interior surface of the casing. 43. The apparatus of claim 42, wherein the cup seal is connected to the gripping member. 44. The apparatus of claim 40, further comprising a cement plug. 45. The apparatus of claim 40, wherein the gripping member is adapted to grip an exterior surface of the casing. 46. The apparatus of claim 40, wherein the gripping member is adapted to grip an interior surface of the casing. 47. The apparatus of claim 40, wherein the cementing head comprises a launching member. 48. A method of forming a wellbore comprising: operatively connecting a circulating head cementing tool to a gripping mechanism member and a top drive, the gripping mechanism member having a radially movable gripping element; gripping a first tubular with the gripping mechanism member; sealingly engaging the first tubular with a circulating seal member; rotating the circulating head cementing tool, the gripping mechanism member, and the first tubular; and lowering the first tubular into the wellbore; operatively connecting a cementing plug to the circulating head cementing tool, wherein the cementing plug comprises at least one plug having a bore therethrough and a mandrel slidable upon introduction of fluid behind the mandrel; gripping a second tubular with the gripping mechanism member; and lowering the second tubular into the wellbore. 49. The method of claim 48, wherein the mandrel biases at least one valve in the bore of the at least one plug in an open position. 50. The method of claim 49, wherein sliding the mandrel a first length closes the at least one valve on the at least one plug. 51. The method of claim 48, wherein releasing the portion of the cementing plug comprises sliding the mandrel a first length to release the at least one plug from a remainder of the cementing plug. 52. A method of forming a wellbore comprising: operatively connecting a circulating head cementing tool to a gripping mechanism member and a top drive, the gripping mechanism member having a radially movable gripping element; providing an isolator body operatively connected to the top drive, the gripping mechanism member at least partially disposed within the isolator body; allowing relative rotation between the isolator body and the gripping mechanism member; gripping a first tubular with the gripping mechanism member; sealingly engaging the first tubular with a circulating seal member; rotating the circulating head cementing tool, the gripping mechanism member, and the first tubular; and lowering the first tubular into the wellbore; operatively connecting a cementing plug to the circulating head cementing tool; gripping a second tubular with the gripping mechanism member; and lowering the second tubular into the wellbore. 53. The method of claim 52, wherein the isolator body transfers a tensile load from the gripping mechanism member to the isolator body.
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