IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0596623
(2004-05-28)
|
등록번호 |
US-8197611
(2012-06-12)
|
국제출원번호 |
PCT/EP2004/005817
(2004-05-28)
|
§371/§102 date |
20071121
(20071121)
|
국제공개번호 |
WO2005/119117
(2005-12-15)
|
발명자
/ 주소 |
- Strohmeier, Uwe
- Kopp, Gunnar
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
6 |
초록
▼
The invention relates to a method for introducing a pig-like tool into an operating pipeline, such as a fluid pipe. According to the invention the pipeline is drilled during operation and the tool is injected into the pipeline through the drilled hole. During a corresponding tool removal from the pi
The invention relates to a method for introducing a pig-like tool into an operating pipeline, such as a fluid pipe. According to the invention the pipeline is drilled during operation and the tool is injected into the pipeline through the drilled hole. During a corresponding tool removal from the pipeline a method is provided for prereconnaissance for the determination of a degree of contamination, cleaning, surveying, inspecting, repairing, etc. of pipelines by means of a corresponding, pig-like tool. The invention also relates to a device and a tool permitting the performance of the inventive method. Thus, otherwise unpiggable pipelines can be worked in a cost-efficient manner.
대표청구항
▼
1. A device for introducing a pig tool into an operating pipeline or a gas pipeline, the device comprising: a guidance means which is at least partly introduced into a spot drilled hole of the pipeline, said guidance means having a substantially straight first pipe part having an introductory sectio
1. A device for introducing a pig tool into an operating pipeline or a gas pipeline, the device comprising: a guidance means which is at least partly introduced into a spot drilled hole of the pipeline, said guidance means having a substantially straight first pipe part having an introductory section disposed at an angle with respect to a longitudinal axis of the pipeline and with a curved, channel-like extension which, in an introduced state, sits on a wall of the pipeline facing the spot drilled hole, at least one portion of said first pipe part being located at a location outside of said pipeline, said at least one portion of said first pipe part comprising a first pipe part inner diameter, said first pipe part inner diameter being substantially equal to an inner diameter of the pipeline;a pneumatically or hydraulically operated cylinder for injecting the tool into the pipeline, the tool comprising an outer tool diameter, said outer tool diameter being substantially equal to the inner diameter of the pipeline, the tool comprising support arms that are moveable in an inward direction and an outward direction; andan interior bulge substantially diametrically facing said curved, channel-like extension and extending over a partial circumference of said substantially straight first pipe part, wherein the bulge functions to guide the tool around an edge of the spot drilled hole. 2. The device of claim 1, wherein an engagement area of said curved extension has a tangent which is substantially parallel to the longitudinal axis of the pipeline. 3. The device of claim 1, wherein said guidance means has a further, curved second pipe part with a path bent with respect to a running direction of said first pipe part and disposed on an end remote from said introductory section. 4. The device of claim 3, wherein said bent path is substantially 90°. 5. The device of claim 3, wherein said second pipe part is locally oriented in a plane substantially parallel to a running plane of the pipeline in an introduced state of said guidance means and at an end thereof remote from said first pipe part. 6. The device of claim 3, further comprising a closing means disposed in a joining area between said first and said second pipe parts. 7. The device of claim 6, wherein said closing means is constructed as a slider for pressure-proof closure of said guidance means. 8. The device of claim 5, further comprising a transportation/storage container for the tool connectable to said guidance means at an end thereof remote from said introductory section. 9. The device of claim 8, wherein the tool is injected into the pipeline through said guidance means from said transportation/storage container. 10. The device of claim 8, wherein said transportation/storage container is disposed on a load support device. 11. The device of claim 10, wherein said load support device is mobile or transportable. 12. The device of claim 10, wherein said load support device is constructed as a load carring device. 13. The device of claim 6, further comprising a holding device for holding said guidance means in position against an operating pressure in the pipeline. 14. The device of claim 13, wherein said holding device is constructed as a ram means acting from an outside on said guidance means. 15. The device of claim 13, wherein said holding device is constructed to act on said guidance means in a vicinity of a bend. 16. The device of claim 13, further comprising a bushing with flange extension fittable to the pipeline and into which said guidance means is introduced. 17. The device of claim 16, wherein said closing means and said holding device are jointly connectable to said flange extension. 18. The device of claim 1, wherein said angle is between 30° and 90°. 19. The device of claim 18, wherein said angle is approximately 45°. 20. A device for introducing a pig tool into an operating pipeline or a gas pipeline, the device comprising: a pig tool structure comprising a plurality of support arms, said support arms being mounted for movement such that one or more of said support arms are movable in a radial inward direction and a radial outward direction with respect to at least a portion of a longitudinal axis of said pig tool structure;a guidance means at least partially introduced into a spot drilled hole of the pipeline for guiding the pig tool structure into the pipeline, said guidance means comprising a pipe, said pipe comprising an introductory pipe section disposed at an angle relative to a longitudinal axis of the pipeline, said introductory pipeline section comprising a first introductory pipe portion and a second introductory pipe portion, said second introductory pipe portion comprising a curved portion, at least a portion of said curved portion being in contact with the surface of the pipeline, said surface facing in a direction of the spot drilled hole, said pipe having an inner pipe surface, said inner pipe surface defining an interior bulge for changing an orientation of the pig tool structure, said interior bulge extending at least in a circumferential direction of said introductory pipe section, said first introductory pipe portion defining a first pig tool traveling path upstream of said interior bulge, said second introductory pipe portion defining a second pig tool traveling path downstream of said interior bulge, said first pig tool traveling path extending in a first pig tool path direction, said second pig tool traveling path extending in a second pig tool path direction, said first pig tool path direction being different from said second pig tool path direction; anda pneumatically or hydraulically operated cylinder for injecting the pig tool structure into the pipeline. 21. A device in accordance with claim 20, wherein at least a portion of said bulge is located opposite a portion of the pipeline defining said spot drilled hole, the pipeline having a pipeline inner diameter, said pig tool structure comprising a pig tool structure outer diameter, said pig tool structure outer diameter being substantially equal to the pipeline inner diameter, said pipe comprising a pipe portion, said pipe portion being located at a position outside of the pipeline, said pipe portion comprising a pipe portion inner diameter, said pipe portion inner diameter being substantially equal to the pipeline inner diameter. 22. A device in accordance with claim 21, wherein said interior bulge substantially diametrically faces in a direction of said curved portion. 23. A device in accordance with claim 20, wherein an engagement area of said curved portion has a tangent which is substantially parallel to the longitudinal axis of the pipeline. 24. A device in accordance with claim 20, wherein said pipe comprises a first pipe part and a further, curved second pipe part with a path bent with respect to a running direction of said first pipe part and disposed on an end remote from said introductory section, said first pipe part comprising said introductory pipe section. 25. A device in accordance with claim 24, wherein said bent path is substantially 90°. 26. A device in accordance with claim 24, wherein said second pipe part is locally oriented in a plane substantially parallel to a running plane of the pipeline in an introduced state of said guidance means and at an end thereof remote from said first pipe part. 27. A device in accordance with claim 24, further comprising a closing means disposed in a joining area between said first and said second pipe parts. 28. A device in accordance with claim 27, wherein said closing means is constructed as a slider for pressure-proof closure of said guidance means. 29. A device in accordance with claim 26, further comprising a transportation/storage container for the pig tool structure connectable to said guidance means at an end thereof remote from said introductory section. 30. A device in accordance with claim 29, wherein the pig tool structure is injected into the pipeline through said guidance means from said transportation/storage container. 31. A device in accordance with claim 29, wherein said transportation/storage container is disposed on a load support device. 32. A device in accordance with claim 31, wherein said load support device is mobile or transportable. 33. A device in accordance with claim 31, wherein said load support device is constructed as a load carrying device. 34. A device in accordance with claim 27, further comprising a holding device for holding said guidance means in position against an operating pressure in the pipeline. 35. A device in accordance with claim 34, wherein said holding device comprises a ram means acting from an outside on said guidance means. 36. A device in accordance with claim 34, wherein said holding device acts on said guidance means in a vicinity of a bend. 37. A system for introducing a pig tool into an operating pipeline or a gas pipeline, the device comprising: a pipeline comprising a pipeline inner diameter;a tool structure comprising a tool structure outer diameter and a plurality of support arms, said plurality of support arms being mounted for movement such that said support arms are movable in an inward direction and an outward direction, said tool structure outer diameter being substantially equal to said pipeline inner diameter;a guidance means at least partially introduced into a spot drilled hole of the pipeline for guiding the tool structure into the pipeline, said guidance means comprising a pipe, said pipe comprising an introductory pipe section and a pipe portion arranged at a location outside of said pipeline, said pipe portion comprising an inner pipe portion diameter, said inner pipe portion diameter being substantially equal to said pipeline inner diameter, said pipe being disposed at an angle relative to a longitudinal axis of the pipeline, said introductory pipe section comprising a curved portion, said curved portion comprising a curved outer surface portion, at least a portion of said curved outer surface portion defining an inner surface pipeline contact area for engaging an inner surface of the pipeline, the inner surface facing in a direction of the spot drilled hole, said introduction pipe section comprising an introductory outer surface portion, said introductory outer surface portion defining a pipe edge contact area for contacting at least a portion of the pipeline defining the spot drilled hole, said introductory pipe section having an inner introductory pipe section surface, said inner introductory pipe section surface defining an interior bulge at an end portion thereof for changing an orientation of the tool structure, said interior bulge being located opposite said pipe edge contact area, said interior bulge extending at least in a circumferential direction of said end portion of said introductory pipe section; anda pneumatically or hydraulically operated cylinder for injecting the tool into the pipeline. 38. A system in accordance with claim 37, wherein said interior bulge substantially diametrically faces in a direction of said curved portion, said introductory pipe section comprising a first introductory pipe section and a second introductory pipe section, said second introductory pipe section comprising said curved portion, said first introductory pipe section defining a first tool traveling path upstream of said interior bulge, said second introductory pipe portion defining a second tool traveling path downstream of said interior bulge, said first tool traveling path extending in a first tool path direction, said second tool traveling path extending in a second tool path direction, said first tool path direction being different from said second tool path direction.
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