CN202117577U - Internal slip type connector for continuous tube - Google Patents
Internal slip type connector for continuous tube Download PDFInfo
- Publication number
- CN202117577U CN202117577U CN2011201953815U CN201120195381U CN202117577U CN 202117577 U CN202117577 U CN 202117577U CN 2011201953815 U CN2011201953815 U CN 2011201953815U CN 201120195381 U CN201120195381 U CN 201120195381U CN 202117577 U CN202117577 U CN 202117577U
- Authority
- CN
- China
- Prior art keywords
- wall
- slips
- mandrel
- continuous tube
- slip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Abstract
The utility model discloses an internal slip type connector for a continuous tube, which is applied to work of the continuous tube of an oil field. The outer wall of the upper end of a core shaft is conical; a slip is sleeved on the outer wall of the upper end of the core shaft; the lower end of the slip is circular ring-shaped; the outer wall of the upper end of the slip is equipped with slip teeth; and the upper end of the slip is divided into 3-6 slip pieces; the core shaft is sleeved with a sealing connecting pipe; a sealing ring is displaced in the sealing groove; a screw thread is arranged on the outer wall of the lower end of the core shaft; the lower end of the core shaft is connected with a thrusting nut; a gasket is displaced between the thrusting nut and the sealing connecting pipe; a screw thread is arranged on the outer wall of the lower end of the sealing connecting pipe; the lower end of the sealing connecting pipe is in threaded connection with a lower joint; a central hole is formed on the lower joint. The connector can connect underground tools to the lower end of the continuous tube, and such a connection way can decrease the size of the appearance of the tools till the size of the tools is the same as the outside diameter of the continuous tube.
Description
Technical field
The utility model relates to the oilfield machinery technical field, and particularly operation is managed in the oil field continuously, is the connection special tool of connecting pipes.
Background technology
Existing continuous tube connector mainly contains holding screw connector and external slips connector.The pipe caliber is many greatly continuously, has enough spaces to realize being connected of holding screw and external slips.Because the oil pipe of domestic oil well is generally less, and general job all needs the continuous pipe of little caliber, and this has just limited the outside dimension of continuous pipe fastening means, can't use holding screw and external slips to realize that pipe is connected continuously.
The utility model content
The purpose of the utility model is: provide a kind of internal slip formula continuous tube connector, the mode that adopts internal slip to block continuous inside pipe wall connects, and realizes big caliber being connected between pipe and the less outside dimension instrument continuously.
The technical scheme that the utility model adopts is: the continuous tube connector of internal slip formula; Mainly form by mandrel, slips, sealed joint pipe, packing ring, push-tight nut and lower contact; It is characterized in that: mandrel has centre bore; The upper end outer wall of mandrel is conical, on the outer wall of mandrel upper end, is with slips; The lower end of slips is an annular, and slips upper end outer wall has slip insert, and the upper end of slips is divided into 3～6 slips lobes; On mandrel, be with sealed joint pipe, on the outer wall of the upper end of sealed joint pipe, annular seal groove arranged, sealing ring is arranged in seal groove; On the outer wall of the lower end of mandrel, screw thread is arranged, be connected with the push-tight nut, between push-tight nut and sealed joint pipe, packing ring is arranged in the mandrel lower end; On the outer wall of the lower end of sealed joint pipe, screw thread is arranged, the lower end screw thread of sealed joint pipe is connected with lower contact; Lower contact has centre bore; Described packing ring and push-tight nut are in the centre bore of lower contact.
There is external screw thread lower end in lower contact, and the lower end of lower contact has external screw thread to can be used for being connected with other continuous piping tools, realizes that pipe carries well operations under the instrument continuously.
In order to improve sealing, O type cushion rubber is arranged between sealed joint pipe and lower contact.
The operating principle of the continuous tube connector of summary internal slip formula.Consult Fig. 1.Axle 1 and slips 2 are inserted in the good continuous bore of polishing, tighten push-tight nut 7, make slips 2 inflating clip under the effect on axle 1 slope be close to continuous inside pipe wall.Sealing ring 3 on the sealed joint pipe 4 can guarantee that continuously the fluid in the pipe does not leak outside.When between continuous pipe and the instrument when stressed, slips 2 and continuously the clamping force between the inside pipe wall can impel slips 2 along moving on the slope of axle 1, impel the outer wall of slips 2 to expand greatlyyer, it is also tighter that slips 2 teeth are stung continuous inside pipe wall.
The beneficial effect of the utility model: the continuous tube connector of the utility model internal slip formula, can make downhole tool be connected the lower end of continuous pipe, and this connected mode can make the appearance and size of instrument diminish, reach with external diameter of pipe is the same big continuously.Be suitable for the multiple underground work of pipe continuously, like underground work such as sand washing, well-flushing, salvaging, brill millings.
Description of drawings
Fig. 1 is the continuous tube connector structural profile of a utility model internal slip formula sketch map.
Among the figure, 1-mandrel, 2-slips, 3-sealing ring, 4-sealed joint pipe, 5-O type cushion rubber, 6-packing ring, 7-push-tight nut, 8-lower contact.
The specific embodiment
Embodiment 1: with a continuous tube connector of internal slip formula is example, and the utility model is done further explain.
Consult Fig. 1.The continuous tube connector of the utility model internal slip formula mainly is made up of mandrel 1, slips 2, sealed joint pipe 4, packing ring 6, push-tight nut 7 and lower contact 8.
Mandrel 1 has centre bore, and the upper end outer wall of mandrel 1 is conical, and the tapering of the cone of mandrel 1 upper end outer wall is 1: 12.On mandrel 1 upper end outer wall, be with slips 2.The lower end of slips 2 is an annular, and slips 2 upper end outer walls have slip insert, and the upper end of slips 2 is divided into 6 slips lobes, promptly is evenly distributed with the striping of axial line cutting in the upper end of slips 2.On mandrel 1, be with sealed joint pipe 4, on the outer wall of the upper end of sealed joint pipe 4, the twice annular seal groove arranged, a sealing ring 3 is arranged respectively in seal groove.On the outer wall of the lower end of mandrel 1, screw thread is arranged, be connected with push-tight nut 7, a packing ring 6 is arranged between push-tight nut 7 and sealed joint pipe 4 in mandrel 1 lower end.On the outer wall of the lower end of sealed joint pipe 4, screw thread is arranged, the lower end screw thread of sealed joint pipe 4 is connected with lower contact 8.At sealed joint pipe 4 O type cushion rubber 5 is arranged between lower contact 8.Lower contact 8 has centre bore; There is external screw thread lower end in lower contact 8.Described packing ring 6 and push-tight nut 7 are in the centre bore of lower contact 8.
Claims (3)
1. continuous tube connector of internal slip formula; Mainly form by mandrel (1), slips (2), sealed joint pipe (4), packing ring (6), push-tight nut (7) and lower contact (8); It is characterized in that: mandrel (1) has centre bore; The upper end outer wall of mandrel (1) is conical, on the outer wall of mandrel (1) upper end, is with slips (2); The lower end of slips (2) is an annular, and slips (2) upper end outer wall has slip insert, and the upper end of slips (2) is divided into 3～6 slips lobes; On mandrel (1), be with sealed joint pipe (4), on the upper end outer wall of sealed joint pipe (4), annular seal groove arranged, sealing ring (3) is arranged in seal groove; On the lower end outer wall of mandrel (1), screw thread is arranged, be connected with push-tight nut (7), between push-tight nut (7) and sealed joint pipe (4), packing ring (6) is arranged in mandrel (1) lower end; On the lower end outer wall of sealed joint pipe (4), screw thread is arranged, the lower end screw thread of sealed joint pipe (4) is connected with lower contact (8); Lower contact (8) has centre bore; Described packing ring (6) and push-tight nut (7) are in the centre bore of lower contact (8).
2. the continuous tube connector of internal slip formula according to claim 1 is characterized in that: there is external screw thread the lower end in lower contact (8).
3. the continuous tube connector of internal slip formula according to claim 1 is characterized in that: between sealed joint pipe (4) and lower contact (8), O type cushion rubber (5) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201953815U CN202117577U (en) | 2011-06-10 | 2011-06-10 | Internal slip type connector for continuous tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201953815U CN202117577U (en) | 2011-06-10 | 2011-06-10 | Internal slip type connector for continuous tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202117577U true CN202117577U (en) | 2012-01-18 |
Family
ID=45458650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201953815U Expired - Lifetime CN202117577U (en) | 2011-06-10 | 2011-06-10 | Internal slip type connector for continuous tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202117577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775774A (en) * | 2014-01-11 | 2015-07-15 | 中国石油化工股份有限公司 | Quick insertion guide chain of continuous oil pipe injection head |
-
2011
- 2011-06-10 CN CN2011201953815U patent/CN202117577U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775774A (en) * | 2014-01-11 | 2015-07-15 | 中国石油化工股份有限公司 | Quick insertion guide chain of continuous oil pipe injection head |
| CN104775774B (en) * | 2014-01-11 | 2017-11-14 | 中国石油化工股份有限公司 | Coiled tubing injection head quick insertion drag chain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |