CN201679468U - Coiled tubing anchoring device - Google Patents
Coiled tubing anchoring device Download PDFInfo
- Publication number
- CN201679468U CN201679468U CN2010201216316U CN201020121631U CN201679468U CN 201679468 U CN201679468 U CN 201679468U CN 2010201216316 U CN2010201216316 U CN 2010201216316U CN 201020121631 U CN201020121631 U CN 201020121631U CN 201679468 U CN201679468 U CN 201679468U
- Authority
- CN
- China
- Prior art keywords
- coiled tubing
- anchoring device
- central tube
- movable slips
- annular space
- 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 - Fee Related
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Abstract
A coiled tubing anchoring device comprises an upper joint, a lower joint, a central pipe, an outer pipe and a movable slip, and is characterized in that the outer pipe and the central pipe are connected with the upper joint, the lower joint is connected with the outer pipe, and the movable slip is mounted in an annular space between the outer pipe and the central pipe. The coiled tubing anchoring device has the advantages that the device can realize anchorage during operational construction of coiled tubing, and guarantees normal smooth operation of the construction of the coiled tubing, the surface of the slip has small harm to the coiled tubing due to adoption of a segmental piston slip structure, the device is reasonable in structure and fine in anchorage effect, and has fine safety performance during operational construction of the continuous pipes and the like. The coiled tubing anchoring device is mainly applied to operational processes of coiled tubing in oil exploitation wells and similar projects.
Description
One, technical field
The utility model relates to oil exploitation underground work process tool, particularly a kind of coiled tubing anchoring device.
Two, background technology
The coiled tubing operation of oil exploitation is that oil exploitation contributes, but exists following shortcoming or deficiency in its operation process: 1. generation is slippery easily, influences operation and tubing string safety; 2. easily cause the damage of coiled tubing body; 3. because no suitable oil pipe anchoring device directly influences its job success ratio even cause operation failure and follow-up Petroleum Production to be difficult to carry out.
Three, summary of the invention
The purpose of this utility model provides a kind of improved coiled tubing anchoring device, adopts the hydraulic self-adaption anchoring structure, the shortcoming or the deficiency that effectively overcome or avoid existing in the art prior art.
Coiled tubing anchoring device described in the utility model, comprise top connection, lower contact, central tube, outer tube and movable slips, it is characterized in that the lower contact that is connected with top connection of described outer tube and central tube is connected with outer tube, movable slips is installed in the annular space between outer tube and the central tube.
Wherein, described central tube is connected with the top connection internal thread, and central tube is provided with outer shoulder.Leave an annular space between the outer tube of the upper end of described movable slips, top connection lower end and the central tube.Contact under the outer shoulder of described movable slips upper end one side shoulder and central tube and match.Described movable slips is inside and outside reducing component, and its top external diameter is big, and internal diameter is little, and the middle and lower part external diameter diminishes gradually, and it is big that internal diameter becomes, and top is equipped with interior outside seal may, seals mutually with outer pipe internal surface and central tube inner surface respectively.Leave an annular space between the outer tube of described lower contact upper end and the movable slips.Described outer tube is provided with two flowing holes, and last flowing hole is connected with the annular space of movable slips upper end, and following flowing hole is connected with the annular space of lower contact upper end.Described central tube top is connected with the top connection internal thread, and the bottom is free end at movable slips inner chamber.
The utility model has following advantage compared with prior art:
1, can realize grappling in the coiled tubing job execution process, make the coiled tubing job execution be able to normally carry out smoothly;
2, adopt the hydraulic self-adaption grappling, rational in infrastructure, grappling is firm, effective;
3, adopt distinguish piston type slips, its surface is little to the damage of coiled tubing, guarantees operation and ontological security in the coiled tubing job execution process.
Four, description of drawings
Accompanying drawing is a kind of example structure schematic diagram of the present utility model
Five, the specific embodiment:
Consult accompanying drawing, a kind of coiled tubing anchoring device comprises top connection 1, lower contact 5, central tube 2, outer tube 3 and movable slips 4.Outer tube 3 is connected with top connection 1 with central tube 2, and lower contact 5 is connected with outer tube 3.Movable slips 4 is installed in the annular space between outer tube 3 and the central tube 2.
Central tube 2 is connected with top connection 1 internal thread, and central tube 2 is provided with outer shoulder.Be provided with an annular space between upper end, top connection 1 lower end, outer tube 3 and the central tube 2 of movable slips 4.Contact under the outer shoulder of movable slips 4 upper ends one side shoulder and central tube 3 and match.Movable slips 4 is inside and outside reducing component, and its top external diameter is big, and internal diameter is little, and the middle and lower part external diameter diminishes gradually, and it is big that internal diameter becomes, and top is equipped with interior outside seal may 6, seals mutually with outer tube 3 inner surfaces and central tube 2 external surfaces respectively.Leave an annular space between the outer tube 3 of lower contact 5 upper ends and the movable slips 4.Outer tube 3 is provided with two flowing holes, and last flowing hole is connected with the annular space of movable slips upper end, and following flowing hole is connected with the annular space of lower contact 5 upper ends.Central tube 2 tops are connected with top connection 1 internal thread, and the bottom is free end at movable slips 4 inner chambers.In top connection 1, movable slips 4 and the lower contact 5 seal 6 is installed.
Claims (8)
1. coiled tubing anchoring device, comprise top connection, lower contact, central tube, outer tube and movable slips, it is characterized in that described outer tube is connected with top connection with central tube, lower contact is connected with outer tube, and movable slips is installed in the annular space between outer tube and the central tube.
2. coiled tubing anchoring device according to claim 1 is characterized in that described central tube is connected with the top connection internal thread, and central tube is provided with outer shoulder.
3. coiled tubing anchoring device according to claim 1 and 2 is characterized in that leaving an annular space between the outer tube of upper end, top connection lower end of described movable slips and the central tube.
4. coiled tubing anchoring device according to claim 1 and 2 is characterized in that contacting cooperation under the outer shoulder of described movable slips upper end one side shoulder and central tube.
5. coiled tubing anchoring device according to claim 1, it is characterized in that described movable slips is inside and outside reducing component, its top external diameter is big, internal diameter is little, the middle and lower part external diameter diminishes gradually, it is big that internal diameter becomes, and top is equipped with interior outside seal may, seals mutually with outer pipe internal surface and central tube inner surface respectively.
6. coiled tubing anchoring device according to claim 1 or 5 is characterized in that leaving an annular space between the outer tube of described lower contact upper end and the movable slips.
7. coiled tubing anchoring device according to claim 1 is characterized in that described outer tube is provided with two flowing holes, and last flowing hole is connected with the annular space of movable slips upper end, and following flowing hole is connected with the annular space of lower contact upper end.
8. coiled tubing anchoring device according to claim 1 is characterized in that described central tube top is connected with the top connection internal thread, and the bottom is free end at movable slips inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201216316U CN201679468U (en) | 2010-02-25 | 2010-02-25 | Coiled tubing anchoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201216316U CN201679468U (en) | 2010-02-25 | 2010-02-25 | Coiled tubing anchoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201679468U true CN201679468U (en) | 2010-12-22 |
Family
ID=43344516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201216316U Expired - Fee Related CN201679468U (en) | 2010-02-25 | 2010-02-25 | Coiled tubing anchoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201679468U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206992A (en) * | 2011-04-01 | 2011-10-05 | 西南石油大学 | Crawler and crawling method for continuous oil pipe |
| CN104213850A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Connector for coiled tubing and method for improving connection strength |
-
2010
- 2010-02-25 CN CN2010201216316U patent/CN201679468U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206992A (en) * | 2011-04-01 | 2011-10-05 | 西南石油大学 | Crawler and crawling method for continuous oil pipe |
| CN102206992B (en) * | 2011-04-01 | 2013-10-09 | 西南石油大学 | Crawler and crawling method for continuous oil pipe |
| CN104213850A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Connector for coiled tubing and method for improving connection strength |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20110225 |