CN203559847U - Novel multifunctional casing joint patching device - Google Patents
Novel multifunctional casing joint patching device Download PDFInfo
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- CN203559847U CN203559847U CN201320705835.8U CN201320705835U CN203559847U CN 203559847 U CN203559847 U CN 203559847U CN 201320705835 U CN201320705835 U CN 201320705835U CN 203559847 U CN203559847 U CN 203559847U
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- slips
- outer cylinder
- connecting cylinder
- urceolus
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Abstract
The utility model relates to the technical field of oil field oil well patching tools, in particular to a novel multifunctional casing joint patching device. The novel multifunctional casing joint patching device comprises an upper joint, a guiding shoe, an outer cylinder, a connecting cylinder and tapered slips internally connected with the outer cylinder, wherein the outer cylinder and the connecting cylinder are arranged between the upper joint and the guiding shoe sequentially; a push rod sleeved with a spring is arranged between the tops of the tapered slips and the outer cylinder wall; the slips are matched with dovetail keys through dovetail grooves in tapered surfaces; the dovetail keys are fixed on the inner tapered surface of the outer cylinder through bolts; a first sealing ring is arranged in the connection position of the upper joint and the outer cylinder; a second sealing ring is arranged in the connection position of the outer cylinder and the connecting cylinder; and a milling ring is arranged in the connection position of the connecting cylinder and the guiding shoe. With the adoption of the structure, cement injection and well drilling are realized by a circulation passage, the sealing performance is good, the patching strength is effectively improved, and the service life is prolonged. Besides, the novel multifunctional casing joint patching device has the advantages of reasonable design, simple structure, convenience in operation and the like.
Description
Technical field
The utility model relates to oilfield repair outfit technical field, is specifically related to Multifunction casing coupling rejoining device.
Background technology
At present, because of downhole corrosion environment, often there is tube wall breakage in oil well inner sleeve.The method of repairing in prior art is that special equipment is subsidized one section of new benefit pipe on casing damage place inwall, its shortcoming is to need import special equipment, complicated operation, rehabilitation cost is high, and breakage casing inner diameter is diminished, other instrument of G.I.H is hampered, and exists sealing part compressive property poor, it is low application life that benefit meets place.
Summary of the invention
The purpose of this utility model be to provide a kind of reasonable in design, simple in structure, easy to operate, utilize circulation canal carry out note ash, because of well, improve and mend the Multifunction casing coupling rejoining device that connects intensity and increase the service life.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions: Multifunction casing coupling rejoining device, comprise top connection, guide shoe, be located at successively urceolus and connecting cylinder between described top connection and guide shoe, and with described urceolus in the taper slips that connects, between the top of described taper slips and urceolus barrel, be provided with the push rod of socket spring, described slips coordinates with dovetail key by the dovetail groove on tapering face, described dovetail key is fixed on the internal taper face of described urceolus by screw, the junction of described top connection and urceolus is provided with the first sealing ring, the junction of described urceolus and connecting cylinder is provided with the second sealing ring, the junction of described connecting cylinder and guide shoe is provided with milling ring.
Further, described slips is four.
The utlity model has following beneficial effect: Multifunction casing coupling rejoining device described in the utility model, mainly comprise top connection, guide shoe, be successively located at urceolus between described top connection and guide shoe and connecting cylinder and with described urceolus in the taper slips that connects; The utility model adopts said structure, utilize circulation canal carry out note ash, because of well, good seal performance, effectively improves to mend and connects intensity and increase the service life.In addition, the utlity model has the features such as reasonable in design, simple in structure, easy to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In Fig. 2 Fig. 1, A-A is to sectional view.
Fig. 3 is schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done into lower detailed explanation,
As Fig. 1, Fig. 2, shown in Fig. 3, Multifunction casing coupling rejoining device, comprise top connection 1, guide shoe 12, be located at successively urceolus 3 and connecting cylinder 10 between described top connection 1 and guide shoe 12, and with described urceolus 3 in the taper slips 8 that connects, between the top of described taper slips 8 and urceolus 3 barrels, be provided with the push rod 5 of socket spring 4, described slips 8 coordinates with dovetail key 7 by the dovetail groove on tapering face, described dovetail key 7 is fixed on the internal taper face of described urceolus 3 by screw 6, the object of design is to limit slips can only move up and down like this, described top connection 1 is provided with the first sealing ring 2 with the junction of urceolus 3, described urceolus 3 is provided with the second sealing ring 9 with the junction of connecting cylinder 10, described connecting cylinder 10 is provided with milling ring 11 with the junction of guide shoe 12.Wherein, described slips 8 is four, in addition, it is the screw thread that 193mm sleeve pipe 13 box cuplings 14 are connected that the lower end of guide shoe 12 has with diameter, and during construction operation, rejoining device is that 193mm sleeve pipe is transferred with diameter, the box cupling that sleeve pipe is damaged in down-hole enters guide shoe by righting, opening milling ring is removed casing coupling top burr, and it is descending that instrument continues, and sleeve pipe withstands that slips is up to be opened.Casing coupling is introduced to slips, when slips is by after box cupling, slips is under the effect of deadweight and spring strength, and slips is descending, and contracted diameter contacts with the external surface of sleeve pipe, on carry instrument, the upper end of slips is withstood in the lower end of box cupling, and the resistance producing like this makes slips gripping sleeve, at this moment, by the circulation canal note ash between slips, carry out to mend connecing well cementation.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, other modifications that those of ordinary skills make the technical solution of the utility model or be equal to replacement, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of claim scope of the present utility model.
Claims (2)
1. Multifunction casing coupling rejoining device, it is characterized in that, comprise top connection (1), guide shoe (12), be located at successively urceolus (3) and connecting cylinder (10) between described top connection (1) and guide shoe (12), and with described urceolus (3) in the taper slips (8) that connects, between the top of described taper slips (8) and urceolus (3) barrel, be provided with the push rod (5) of socket spring (4), described slips (8) coordinates with dovetail key (7) by the dovetail groove on tapering face, described dovetail key (7) is fixed on the internal taper face of described urceolus (3) by screw (6), described top connection (1) is provided with the first sealing ring (2) with the junction of urceolus (3), described urceolus (3) is provided with the second sealing ring (9) with the junction of connecting cylinder (10), described connecting cylinder (10) is provided with milling ring (11) with the junction of guide shoe (12).
2. Multifunction casing coupling rejoining device according to claim 1, is characterized in that, described slips (8) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705835.8U CN203559847U (en) | 2013-11-11 | 2013-11-11 | Novel multifunctional casing joint patching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705835.8U CN203559847U (en) | 2013-11-11 | 2013-11-11 | Novel multifunctional casing joint patching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559847U true CN203559847U (en) | 2014-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320705835.8U Expired - Fee Related CN203559847U (en) | 2013-11-11 | 2013-11-11 | Novel multifunctional casing joint patching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628837A (en) * | 2013-11-11 | 2014-03-12 | 江苏君鑫谊石油机械有限公司 | Multifunctional novel patching connector for casing joint |
-
2013
- 2013-11-11 CN CN201320705835.8U patent/CN203559847U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628837A (en) * | 2013-11-11 | 2014-03-12 | 江苏君鑫谊石油机械有限公司 | Multifunctional novel patching connector for casing joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20141111 |
|
| EXPY | Termination of patent right or utility model |