CN203559845U - Multifunctional casing joint patching device - Google Patents
Multifunctional casing joint patching device Download PDFInfo
- Publication number
- CN203559845U CN203559845U CN201320698277.7U CN201320698277U CN203559845U CN 203559845 U CN203559845 U CN 203559845U CN 201320698277 U CN201320698277 U CN 201320698277U CN 203559845 U CN203559845 U CN 203559845U
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- China
- Prior art keywords
- outer barrel
- guide shoe
- barrel
- casing
- urceolus
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of oilfield and oilwell repairing tools, in particular to a multifunctional casing joint patching device. The multifunctional casing joint patching device comprises an upper connector, a guide shoe, an outer barrel, a connecting barrel and a slip internally connected with the outer barrel, wherein the outer barrel and the connecting barrel are sequentially arranged between the upper connector and the guide shoe; positioning keys in the direction of the inner wall diameter of the outer barrel are arranged in a slip groove; a first seal ring is arranged in the position where the upper connector and the outer barrel are connected; a second seal ring is arranged in the position where the outer barrel and the connecting barrel are connected; and an opened mill ring is arranged in the position where the connecting barrel and the guide shoe are connected. With the adoption of the structure, the construction is simple and convenient, the seal is easy to control, the patching strength is effectively improved, and the service life is prolonged; and besides, the multifunctional casing joint patching device has the characteristics of reasonable design, simple structure, convenience in use and the like, when the device is used for changing a damaged casing underground, a new casing and an old casing are connected, internal drift diameters are kept unchanged, the sealing effect is achieved, and simultaneously, grout injection and well cementation are performed by utilizing a circulating channel.
Description
Technical field
The utility model relates to oilfield repair outfit technical field, is 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 purpose of this utility model 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 utility model 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 the grey passage of note.
The utlity model has following beneficial effect: Multifunctional casing box cupling rejoining device described in the utility model, 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 utility model 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 utlity model has the features such as reasonable, simple in structure, easy to use of counting, while damaging sleeve pipe for changing down-hole, connect new and old sleeve pipe, make it to keep interior latus rectum constant, and seal, utilize circulation canal simultaneously, carry out note ash, cement the well.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in more 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 the grey passage of note.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, by the cement passage note ash well cementation outside slips.
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. 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 the grey passage of note.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320698277.7U CN203559845U (en) | 2013-11-07 | 2013-11-07 | Multifunctional casing joint patching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320698277.7U CN203559845U (en) | 2013-11-07 | 2013-11-07 | Multifunctional casing joint patching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559845U true CN203559845U (en) | 2014-04-23 |
Family
ID=50509573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320698277.7U Expired - Fee Related CN203559845U (en) | 2013-11-07 | 2013-11-07 | Multifunctional casing joint patching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559845U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628836A (en) * | 2013-11-07 | 2014-03-12 | 江苏君鑫谊石油机械有限公司 | Multifunctional casing coupling repairing and connecting device |
| CN111894504A (en) * | 2020-07-30 | 2020-11-06 | 合力（天津）能源科技股份有限公司 | Hydraulic sealing patch connector suitable for casing and oil pipe |
-
2013
- 2013-11-07 CN CN201320698277.7U patent/CN203559845U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628836A (en) * | 2013-11-07 | 2014-03-12 | 江苏君鑫谊石油机械有限公司 | Multifunctional casing coupling repairing and connecting device |
| CN111894504A (en) * | 2020-07-30 | 2020-11-06 | 合力（天津）能源科技股份有限公司 | Hydraulic sealing patch connector suitable for casing and oil pipe |
| CN111894504B (en) * | 2020-07-30 | 2022-04-08 | 合力（天津）能源科技股份有限公司 | Hydraulic sealing patch connector suitable for casing and oil pipe |
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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: 20141107 |
|
| EXPY | Termination of patent right or utility model |