CN203822232U - Withdrawable fishing spear with milling function - Google Patents
Withdrawable fishing spear with milling function Download PDFInfo
- Publication number
- CN203822232U CN203822232U CN201420105307.3U CN201420105307U CN203822232U CN 203822232 U CN203822232 U CN 203822232U CN 201420105307 U CN201420105307 U CN 201420105307U CN 203822232 U CN203822232 U CN 203822232U
- Authority
- CN
- China
- Prior art keywords
- lance
- fishing
- bar
- spear
- drags
- 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
Links
Abstract
The utility model discloses a withdrawable fishing spear with a milling function. The withdrawable fishing spear comprises a spear claw, a fishing lever and a spear claw control mechanism, wherein the spear claw sleeves the fishing lever, the upper end of the spear claw is connected with the spear claw control mechanism, and the lower end of the spear claw is inserted in a groove formed in the outer wall of the fishing lever; the diameter of the outer wall, at which the groove is positioned, of the fishing lever is gradually increased from top to bottom, and the outer wall is of an expanded conical design; the bottom end of the fishing lever is provided with a reduced conical head and a smashed alloy; the spear claw control mechanism comprises a rail pin bolt, a rotary ring and a press cap; the outer wall of the fishing lever is provided with a rail; the rail pin bolt moves in the rail and is connected with the outer rotary ring capable of controlling self operation; the outer side of the rotary ring is provided with the press cap; the upper end of the spear claw is connected inside the press cap. The withdrawable fishing spear integrates a milling function and a fishing function; once well repair can be realized by once fishing by virtue of one fishing tool. The withdrawable fishing spear can be used for overcoming the defect that once well repair is realized by multiple times of fishing by virtue of multiple fishing tools due to single function of an existing fishing tool.
Description
Technical field
The utility model relates to workover tool, and specifically a kind of reversible with milling function drags for lance.
Background technology
The on-the-spot fishing tool kind using is a lot of at present, but drilling completion runs into screen cloth in horizontal well, when soft metal braid etc., can cause that fishing tool is descending to be hampered or to be damaged, after must being lowered to milling tool and clearing up, then salvage, this just causes underground work operation to increase, job execution cycle stretch-out, causes operating cost to increase, and also affects the normal production of oil-water well.
Summary of the invention
The purpose of this utility model is to provide a kind of reversible with milling function to drag for lance, integrates milling, salvages function, and a well workover only needs a set of fishing tool once to salvage.The deficiency that overcomes existing fishing tool function singleness, causes a well workover to need many cover fishing tools repeatedly to salvage.
In order to reach above-mentioned purpose, the utility model has adopted following technical scheme, a kind of reversible with milling function drags for lance, comprise lance pawl, drag for bar, lance pawl controlling organization, described lance pawl empty set is being dragged for bar outside, and lance pawl upper end connects and be arranged on equally the lance pawl controlling organization that drags for being used on bar and control lance pawl and change operating position, and lower end is inserted in drags in the groove that bar outer wall offers, described groove is residing drag for bar outer wall from top to bottom diameter become gradually greatly, be enlarged diameter type conical design.
Described bottom of dragging for bar from top to bottom diameter diminishes gradually, for diameter reduced conical head, describedly offer hydrophthalmia in the middle of dragging for bar bottom diameter reduced conical head, hydrophthalmia is offered middle through hole and is communicated with dragging for bar middle part, described in drag for the fluid hole that offers through hole in oblique same connection around the hydrophthalmia of bar bottom.
On the taper surface of described diameter reduced conical head, be provided with broken alloy.
The upper semisection diameter of described hydrophthalmia is greater than the diameter of lower semisection, and hydrophthalmia has the variable diameter design of throttling function.
Described lance pawl controlling organization comprises track pin, change, pressure cap, the described bar outer wall that drags for is offered track, track pin runs in track, described track is divided into long track and the short track offered separately, described track pin connects change outside and that control self-operating, described change arranged outside has pressure cap, and described lance pawl upper end is connected to pressure cap inner side.
Described lance pawl controlling organization also comprises spring, described in drag for bar upper end and connect center-pole, center-pole upper end connects top connection, described spring housing is dragging for bar and center-pole outside, and spring upper end withstands on top connection lower end, spring lower end withstands on the upper end of pressure cap.
Between described long track and short track, be provided with the inclined-plane of being convenient to track pin dislocation.
Compared to prior art, the utlity model has following beneficial effect:
Take such scheme, descending while running into screen cloth, soft metal braid etc. when salvaging, dragging for bar afterbody has broken alloy, can rid, ensure that dragging for lance salvages smoothly.This tool set milling, salvaging function are integrated, and save material, save time, and have greatly improved operating efficiency.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of reversible with milling function of the present utility model drags for lance;
Fig. 2 is the structural representation (comprising the expanded view of pin track and groove) that drags for bar;
Fig. 3 and Fig. 4 are respectively A-A, the B-B sectional view of Fig. 2;
Fig. 5 is the structural representation that drags for bar afterbody.
In figure: top connection 1, center-pole 2, spring 3, pressure cap 4, track pin 5, change 6, lance pawl 7, drag for bar 8, groove 9, broken alloy 10, fluid hole 11, hydrophthalmia 12.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides the use of reference with explanation, is not used for the utility model to be limited.
As Figure 1-5, a kind of reversible with milling function drags for lance, described center-pole 2 front ends are connected in and drag on bar 8, rear end is connected in top connection 1, drag for bar 8 middle parts and be provided with long and short track, track pin 5 is controlled in this length track and is moved by change 6, the conical head that lower end is hole enlargement, and center is provided with intercommunicating pore.Drag for bar 8 afterbodys fluted 9, lance pawl 7 embeds in groove 9, prevents that when rotated lance pawl 8 is out of shape.On groove 9 upper ends have, carry step, be convenient to put and put on tubing string.Dragging for bar 8 tail surface has broken alloy 10, realizes milling function, cleaning top of fish obstruction.Drag for bar 8 afterbody places and have oblique fluid hole 11(3-6), be evenly distributed on milling groove place, flushable bottom sand setting.Drag for hydrophthalmia 12 undergauges at bar afterbody place.Play the effect of throttling.Spring 3 is installed in center-pole 2 and is dragged on bar 8, and upper end contacts with top connection 1, and lower end is located on pressure cap 4.
When dragging for lance and going into the well, pin 5 is positioned at short track, and lance pawl 7, in groove 9, does not contact with dragging for bar 8 conical sections, and lance pawl 7 is in contraction state.When running into screen cloth, when soft metal braid etc., lance is dragged in rotation, drags for the broken alloy 10 on bar 8 conical section surfaces, realizes milling function, removes top of fish obstruction.In the time dragging for lance and contact and insert fish chamber, lance pawl 7 promotes pin 5 and moves, change simultaneously 6 is rotated and is driven pin 5 to enter long track, now upper lifting pipe post, lance pawl 7 contacts with dragging for bar 8 conical surfaces, lance pawl 7 diameter swells, fish is caught, meanwhile, spring is pressed in lance pawl 7 in fish chamber, prevents from throwing off in the middle of fishing tool.If want to throw off fish, make pin 5 enter after short track upper lifting pipe post again as long as transfer tubing string.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (7)
1. a reversible with milling function drags for lance, it is characterized in that, comprise lance pawl, drag for bar, lance pawl controlling organization, described lance pawl empty set is being dragged for bar outside, and lance pawl upper end connects to be arranged on equally drags for being used on bar and controls lance pawl and change the lance pawl controlling organization of operating position, lower end is inserted in drags in the groove that bar outer wall offers, described groove is residing drag for bar outer wall from top to bottom diameter become gradually greatly, be enlarged diameter type conical design.
2. a kind of reversible with milling function according to claim 1 drags for lance, it is characterized in that, described bottom of dragging for bar from top to bottom diameter diminishes gradually, for diameter reduced conical head, the described middle hydrophthalmia of offering of bar bottom diameter reduced conical head that drags for, hydrophthalmia is offered middle through hole and is communicated with dragging for bar middle part, described in drag for the fluid hole that offers through hole in oblique same connection around the hydrophthalmia of bar bottom.
3. a kind of reversible with milling function according to claim 2 drags for lance, it is characterized in that, is provided with broken alloy on the taper surface of described diameter reduced conical head.
4. a kind of reversible with milling function according to claim 2 drags for lance, it is characterized in that, the upper semisection diameter of described hydrophthalmia is greater than the diameter of lower semisection, and hydrophthalmia has the variable diameter design of throttling function.
5. a kind of reversible with milling function according to claim 1 drags for lance, it is characterized in that, described lance pawl controlling organization comprises track pin, change, pressure cap, the described bar outer wall that drags for is offered track, track pin runs in track, and described track is divided into long track and the short track offered separately, and described track pin connects change outside and that control self-operating, described change arranged outside has pressure cap, and described lance pawl upper end is connected to pressure cap inner side.
6. a kind of reversible with milling function according to claim 5 drags for lance, it is characterized in that, described lance pawl controlling organization also comprises spring, the described bar upper end of dragging for connects center-pole, center-pole upper end connects top connection, described spring housing is dragging for bar and center-pole outside, and spring upper end withstands on top connection lower end, and spring lower end withstands on the upper end of pressure cap.
7. a kind of reversible with milling function according to claim 5 drags for lance, it is characterized in that, between described long track and short track, is provided with the inclined-plane of being convenient to track pin dislocation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105307.3U CN203822232U (en) | 2014-03-10 | 2014-03-10 | Withdrawable fishing spear with milling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105307.3U CN203822232U (en) | 2014-03-10 | 2014-03-10 | Withdrawable fishing spear with milling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822232U true CN203822232U (en) | 2014-09-10 |
Family
ID=51477745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420105307.3U Expired - Fee Related CN203822232U (en) | 2014-03-10 | 2014-03-10 | Withdrawable fishing spear with milling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822232U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533332A (en) * | 2014-12-29 | 2015-04-22 | 中国石油化工股份有限公司 | Downhole string cutting and fishing integrated tool and construction method thereof |
| CN107916906A (en) * | 2017-12-05 | 2018-04-17 | 中国石油集团渤海钻探工程有限公司 | A kind of handling can move back the fishing spear of back-off |
-
2014
- 2014-03-10 CN CN201420105307.3U patent/CN203822232U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533332A (en) * | 2014-12-29 | 2015-04-22 | 中国石油化工股份有限公司 | Downhole string cutting and fishing integrated tool and construction method thereof |
| CN104533332B (en) * | 2014-12-29 | 2017-02-22 | 中国石油化工股份有限公司 | Downhole string cutting and fishing integrated tool and construction method thereof |
| CN107916906A (en) * | 2017-12-05 | 2018-04-17 | 中国石油集团渤海钻探工程有限公司 | A kind of handling can move back the fishing spear of back-off |
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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: 20140910 Termination date: 20180310 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |