CN103628836A - Multifunctional casing coupling repairing and connecting device - Google Patents
Multifunctional casing coupling repairing and connecting device Download PDFInfo
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- CN103628836A CN103628836A CN201310546676.6A CN201310546676A CN103628836A CN 103628836 A CN103628836 A CN 103628836A CN 201310546676 A CN201310546676 A CN 201310546676A CN 103628836 A CN103628836 A CN 103628836A
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- repairing
- outer cylinder
- connecting device
- cylinder
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Abstract
The invention relates to the technical field of oil field oil well repairing tools, in particular to a multifunctional casing coupling repairing and connecting device. The multifunctional casing coupling repairing and connecting device comprises an upper connector, a guiding shoe, an outer cylinder, a connecting cylinder and a slip, wherein the outer cylinder and the connecting cylinder are arranged between the upper connector and the guiding shoe in sequence, and the outer cylinder is internally connected with the slip. Positioning keys in the diameter direction of the inner wall of the outer cylinder are arranged inside a slip groove, the connection position between the upper connector and the outer cylinder is provided with a first sealing ring, the connection position between the outer cylinder and the connecting cylinder is provided with a second sealing ring, and the connecting position between the connecting cylinder and the guiding shoe is provided with an opening milling ring. By the adoption of the structure, construction is carried out easily and conveniently, sealing is easy to control, the repairing and connecting strength is effectively improved, and service life is prolonged. In addition, the multifunctional casing coupling repairing and connecting device has the advantages of being reasonable in design, simple in structure, convenient to use and the like. When used for replacing a damaged casing pipe underground, the multifunctional casing coupling repairing and connecting device is connected with a new casing pipe and the old casing pipe to enable the internal diameter to be kept unchangeable and plays a role in sealing, and a circulation channel is used for pouring mortar and fixing a well.
Description
Technical field
The present invention relates to oilfield repair outfit technical field, be specifically related to Multifunctional casing box cupling rejoining device.
Background technology
At present, many reasons causes down-hole casing to damage, and as chemical attack, stratum extruding or mechanical wear etc., for improving oil well output and recovery ratio, the reparation of casing failure well is extremely necessary.The difficult sealing of conventional traditional sleeve rejoining device, to control, is constructed numerous and diverse.
Summary of the invention
The object of this invention is to provide a kind of reasonable in design, simple in structure, easy to use, easy construction, sealing is easy to control, effectively improves and mend the Multifunctional casing box cupling rejoining device that connects intensity and increase the service life.
In order to solve the existing problem of background technology, the present invention is by the following technical solutions: Multifunctional casing box cupling rejoining device, 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 slips that connects, positioning key in described outer tube inner wall diametric(al) is located in slip groove, 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, and the junction of described connecting cylinder and guide shoe is provided with opening milling ring.
Further, the lateral wall of described slips is provided with and notes grey passage.
The present invention has following beneficial effect: Multifunctional casing box cupling rejoining device of the present invention, comprise top connection, guide shoe, be successively located at urceolus between top connection and guide shoe and connecting cylinder and with urceolus in the slips that connects; The present invention adopts said structure, and easy construction, sealing are easy to control, effectively raising is mended and connect intensity and increase the service life.In addition, the present invention has the features such as reasonable, simple in structure, easy to use of counting, and while damaging sleeve pipe for changing down-hole, connects new and old sleeve pipe, makes it to keep interior latus rectum constant, and seals, and utilizes circulation canal simultaneously, carries out and notes ash, cements the well.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
As Fig. 1, shown in Fig. 2, Multifunctional casing box cupling rejoining device, comprise top connection 1, guide shoe 9, be located at successively urceolus 3 and connecting cylinder 7 between described top connection 1 and guide shoe 9, and with described urceolus 3 in the slips 4 that connects, wherein, the inside and outside taper fit of slips and urceolus, positioning key 5 in described urceolus 3 inner diameter directions is located in slips 4 grooves, like this object of design be limit slips can only axially-movable, 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 6 with the junction of connecting cylinder 7, described connecting cylinder 7 is provided with opening milling ring 8 with the junction of guide shoe 9, adopt sealing ring can improve sealing performance.Wherein, the lateral wall of described slips 4 is provided with and notes grey passage.In the present embodiment, it is the screw thread that 193mm sleeve pipe 10 box cuplings 11 are connected that guide shoe lower end has with diameter, during construction operation, rejoining device connects the sleeve pipe that well cementation length used is 10～30, external diameter is 193mm to be transferred to after certain depth, and down-hole casing enters guide shoe, and milling ring is removed top burr, arrive slips lower end, because slip design internal diameter is less than sleeve pipe external diameter, the frictional resistance producing between slips and sleeve pipe causes slips up along the inner cone of urceolus, realizes slips and opens; Instrument is transferred to behind precalculated position, above carries urceolus, and the slips sleeve pipe of holding is noted ash well cementation by the cement passage outside slips.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.
Claims (2)
1. Multifunctional casing box cupling rejoining device, it is characterized in that, comprise top connection (1), guide shoe (9), be located at successively urceolus (3) and connecting cylinder (7) between described top connection (1) and guide shoe (9), and with described urceolus (3) in the slips (4) that connects, positioning key (5) in described urceolus (3) inner diameter direction is located in slips (4) groove, 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 (6) with the junction of connecting cylinder (7), described connecting cylinder (7) is provided with opening milling ring (8) with the junction of guide shoe (9).
2. Multifunctional casing box cupling rejoining device according to claim 1, is characterized in that, the lateral wall of described slips (4) is provided with notes grey passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310546676.6A CN103628836A (en) | 2013-11-07 | 2013-11-07 | Multifunctional casing coupling repairing and connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310546676.6A CN103628836A (en) | 2013-11-07 | 2013-11-07 | Multifunctional casing coupling repairing and connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103628836A true CN103628836A (en) | 2014-03-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310546676.6A Pending CN103628836A (en) | 2013-11-07 | 2013-11-07 | Multifunctional casing coupling repairing and connecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103628836A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2451717Y (en) * | 2000-05-30 | 2001-10-03 | 中国通化石油工具股份有限公司 | Packer type casing pipe rejoining device |
| CN2464926Y (en) * | 2000-05-30 | 2001-12-12 | 中国通化石油工具股份有限公司 | Lead seal cement pouring sleeve joint |
| US6742585B1 (en) * | 1999-11-24 | 2004-06-01 | Shell Oil Company | Sealing off openings through the wall of a well tubular |
| CN201100109Y (en) * | 2007-09-29 | 2008-08-13 | 华北石油管理局 | Return and complementary connector for self sealing card tile bushing |
| CN201588586U (en) * | 2009-10-14 | 2010-09-22 | 中国石油化工股份有限公司 | Slip sealed sleeve pup joint patch-connector |
| CN201650179U (en) * | 2009-12-18 | 2010-11-24 | 贵州高峰石油机械股份有限公司 | Packer type sleeve repairing and connecting device with spiral slip |
| CN203559845U (en) * | 2013-11-07 | 2014-04-23 | 江苏君鑫谊石油机械有限公司 | Multifunctional casing joint patching device |
-
2013
- 2013-11-07 CN CN201310546676.6A patent/CN103628836A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6742585B1 (en) * | 1999-11-24 | 2004-06-01 | Shell Oil Company | Sealing off openings through the wall of a well tubular |
| CN2451717Y (en) * | 2000-05-30 | 2001-10-03 | 中国通化石油工具股份有限公司 | Packer type casing pipe rejoining device |
| CN2464926Y (en) * | 2000-05-30 | 2001-12-12 | 中国通化石油工具股份有限公司 | Lead seal cement pouring sleeve joint |
| CN201100109Y (en) * | 2007-09-29 | 2008-08-13 | 华北石油管理局 | Return and complementary connector for self sealing card tile bushing |
| CN201588586U (en) * | 2009-10-14 | 2010-09-22 | 中国石油化工股份有限公司 | Slip sealed sleeve pup joint patch-connector |
| CN201650179U (en) * | 2009-12-18 | 2010-11-24 | 贵州高峰石油机械股份有限公司 | Packer type sleeve repairing and connecting device with spiral slip |
| CN203559845U (en) * | 2013-11-07 | 2014-04-23 | 江苏君鑫谊石油机械有限公司 | Multifunctional casing joint patching device |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140312 |