초록 ▼

A crossover tool has an internal sleeve rotatably positioned within an external sleeve, and each of the sleeves has ports alignable with ports on the other sleeve. After deploying the crossover tool downhole and diverting fluid flow below the tool, fluid flow communicated into the internal sleeve te

A crossover tool has an internal sleeve rotatably positioned within an external sleeve, and each of the sleeves has ports alignable with ports on the other sleeve. After deploying the crossover tool downhole and diverting fluid flow below the tool, fluid flow communicated into the internal sleeve tends to rotate it relative to the external sleeve until the ports are substantially aligned so that wear to the components is substantially reduced. The ports themselves may facilitate the rotation and alignment. For example, ports on the internal sleeve may produce tangentially exiting fluid flow. Alternatively, an additional outlet may be defined in the internal sleeve and eccentrically located to its rotation axis. Furthermore, an internal sleeve or insert may partially block fluid flow through the ports to allow greater fluid flow through the additional outlet to enhance rotation of the internal sleeve.

대표청구항 ▼

1. A downhole crossover tool for delivering fluid flow out an external sleeve disposed on external tubing in a wellbore, the external sleeve having a first axial bore and having an external port in a side of the external sleeve, the external port communicating the first axial bore outside the extern

1. A downhole crossover tool for delivering fluid flow out an external sleeve disposed on external tubing in a wellbore, the external sleeve having a first axial bore and having an external port in a side of the external sleeve, the external port communicating the first axial bore outside the external sleeve, the crossover tool comprising: internal tubing disposed in the external tubing and having first and second tubular members; andan internal sleeve rotatably disposed on the internal tubing with first and second bearing assemblies, the first and second bearing assemblies positioned respectively between first and second ends of the internal sleeve and the first and second tubular members, the internal sleeve having a second axial bore, the internal sleeve rotatably positioned within the first axial bore of the external sleeve and having an internal port in a side of the internal sleeve, the internal port communicating the second axial bore outside the internal sleeve and being alignable with the external port of the external sleeve,wherein the internal sleeve is adapted to rotate relative to the external sleeve in response to fluid flow communicated into the second axial bore at least until the internal port aligns with the external port. 2. The tool of claim 1, wherein the internal sleeve has a side port being alignable with the external port of the external sleeve, the side port being eccentrically located relative to a rotational axis of the internal sleeve. 3. The tool of claim 2, wherein in response to the fluid communicated into the second axial bore passing through the side port, the internal sleeve is adapted to rotate relative to the external sleeve at least until the side port aligns with the external port. 4. The tool of claim 2, wherein the internal sleeve comprises a barrier body positioned in the second axial bore and at least partially obstructing fluid flow through the internal port. 5. The tool of claim 4, wherein the barrier body comprises a material intended to disintegrate in the wellbore. 6. The tool of claim 4, wherein the barrier body comprises a cylindrical sleeve positioned within the second axial bore of the internal sleeve and at least partially covering the internal port. 7. The tool of claim 6, wherein the cylindrical sleeve has a plurality of perforations permitting restricted fluid flow therethrough. 8. The tool of claim 4, wherein the barrier body defines the side port being alignable with the external port on the external sleeve and being eccentrically located relative to the rotational axis of the internal sleeve. 9. The tool of claim 8, wherein in response to the fluid communicated into the second axial bore passing through the side port, the internal sleeve is adapted to rotate relative to the external sleeve at least until the side port aligns with the external port. 10. The tool of claim 1, wherein the internal port defines an exit direction substantially tangential to a rotational axis of the internal sleeve, and wherein in response to tangentially exiting fluid from the internal port, the internal sleeve is adapted to rotate relative to the external sleeve at least until the internal port aligns with the external port. 11. The tool of claim 1, wherein the internal sleeve defines a flow passage extending therethrough from the first end to the second end, the flow passage being separate from the second axial bore and permitting fluid flow between the first and second ends of the internal sleeve. 12. The tool of claim 1, wherein the internal sleeve defines at least one fluid passage being separate from the second axial bore and extending from the first end of the internal sleeve to the second end of the internal sleeve. 13. The tool of claim 12, wherein the first tubular member comprises a first internal member disposed inside a first external member, and wherein the second tubular member comprises a second internal member disposed inside a second external member, the first and second internal members communicating with the second axial bore of the internal sleeve, the first and second external members communicating with the at least one fluid passage of the internal sleeve. 14. A downhole crossover tool for delivering fluid flow out an external sleeve disposed on external tubing in a wellbore, the external sleeve having a first axial bore and having an external port communicating with the first axial bore, the crossover tool comprising: internal tubing disposed in the external tubing and having first and second tubular members; andan internal sleeve rotatably disposed on the internal tubing with first and second bearing assemblies, the first and second bearing assemblies positioned respectively between first and second ends of the internal sleeve and the first and second tubular members, the internal sleeve having a second axial bore, the internal sleeve rotatably positioned within the first axial bore of the external sleeve, the internal sleeve having an internal port communicating with the second axial bore and being alignable with the external port, the internal sleeve having a side port communicating with the second axial bore and being alignable with the external port,wherein the internal sleeve is adapted to rotate relative to the external sleeve in response to fluid flow communicated into the second axial bore and through the side port at least until the side port aligns with the external port. 15. The tool of claim 14, wherein the side port is eccentrically located relative to a rotational axis of the internal sleeve. 16. The tool of claim 14, wherein the internal sleeve comprises a barrier body positioned in the second axial bore and at least partially obstructing fluid flow through the internal port. 17. The tool of claim 16, wherein the barrier body comprises a material intended to disintegrate in the wellbore. 18. The tool of claim 16, wherein the barrier body comprises a cylindrical sleeve positioned within the second axial bore of the internal sleeve and at least partially covering the internal port. 19. The tool of claim 18, wherein the cylindrical sleeve has a plurality of perforations permitting restricted fluid flow therethrough. 20. The tool of claim 16, wherein the barrier body of the internal sleeve has the side port. 21. The tool of claim 16, wherein the internal sleeve comprises a main body having the second axial bore in which the barrier body positions, wherein the main body of the internal sleeve has the side port. 22. The tool of claim 14, wherein the internal sleeve defines a flow passage extending therethrough from the first end to the second end, the flow passage being separate from the second axial bore and permitting fluid flow between the first and second ends of the internal sleeve. 23. A downhole crossover tool for delivering fluid flow out an external sleeve disposed on external tubing in a wellbore, the external sleeve having a first axial bore and having an external port in a side of the external sleeve, the external port communicating the first axial bore outside the external sleeve, the crossover tool comprising: internal tubing disposed in the external tubing and having first and second tubular members; andinternal means disposed on the internal tubing and positioned in the first axial bore of the external sleeve for communicating fluid flow from a second axial bore to the first axial bore through an internal port in a side of the internal means;means disposed respectively between first and second ends of the internal means and the first and second tubular members of the internal tubing for rotatably supporting the internal means within the first axial bore of the external sleeve; andmeans for rotating the internal means relative to the external sleeve at least until the internal port aligns with the external port. 24. The tool of claim 23, wherein the means for rotating the internal means relative to the external sleeve comprises: fluid communicating means for communicating fluid flow eccentrically from the second axial bore to the first axial bore, the fluid communicating means being alignable with the external port of the external means. 25. The tool of claim 24, further comprising means for at least partially obstructing fluid flow through the internal port. 26. The tool of claim 25, wherein the means for at least partially obstructing fluid comprises means for disintegrating within the wellbore. 27. The tool of claim 25, wherein the means for at least partially obstructing fluid flow through the internal port comprises the fluid communicating means for communicating fluid flow eccentrically from the second axial bore to the first axial bore. 28. The tool of claim 25, wherein the internal means comprises means for communicating fluid flow separate from the first axial bore from one end of the internal means to an opposite end of the internal means. 29. The tool of claim 23, wherein the means for rotating the internal means relative to the external sleeve comprises means for producing tangentially exiting fluid flow from the internal port of the internal means. 30. A downhole crossover tool for delivering fluid flow out an external sleeve disposed on external tubing in a wellbore, the external sleeve having a first axial bore and having an external port communicating with the first axial bore, the crossover tool comprising: internal tubing disposed in the external tubing and having first and second tubular members; andan internal sleeve having a main body and a barrier body, the main body rotatably disposed on the internal tubing with first and second bearing assemblies, the first and second bearing assemblies positioned respectively between first and second ends of the main body and the first and second tubular members, the main body having a second axial bore and rotatably positioned within the first axial bore of the external sleeve, the main body having an internal port communicating with the second axial bore and being alignable with the external port, the barrier body positioned in the second axial bore of the main body and at least partially obstructing fluid flow through the internal port, the internal sleeve having a side port communicating with the second axial bore and being alignable with the external port,wherein the internal sleeve is adapted to rotate relative to the external sleeve in response to fluid flow communicated into the second axial bore and through the side port at least until the side port aligns with the external port. 31. The tool of claim 30, wherein the side port is eccentrically located relative to a rotational axis of the internal sleeve. 32. The tool of claim 30, wherein the barrier body comprises a material intended to disintegrate in the wellbore. 33. The tool of claim 30, wherein the barrier body comprises a cylindrical sleeve positioned within the second axial bore of the main body and at least partially covering the internal port. 34. The tool of claim 30, wherein the barrier body has a plurality of perforations permitting restricted fluid flow therethrough. 35. The tool of claim 30, wherein the internal tubing comprises first and second tubular members, and wherein the first and second bearing assemblies are positioned respectively between the first and second ends of the main body and the first and second tubular members. 36. The tool of claim 30, wherein the barrier body of the internal sleeve has the side port. 37. The tool of claim 30, wherein the main body of the internal sleeve has the side port. 38. The tool of claim 30, wherein the main body defines a flow passage extending therethrough from the first end to the second end, the flow passage being separate from the second axial bore and permitting fluid flow between the first and second ends of the internal sleeve.