CN218092970U - Hydraulic pressure formula fishing device that can move back - Google Patents
Hydraulic pressure formula fishing device that can move back Download PDFInfo
- Publication number
- CN218092970U CN218092970U CN202220847695.7U CN202220847695U CN218092970U CN 218092970 U CN218092970 U CN 218092970U CN 202220847695 U CN202220847695 U CN 202220847695U CN 218092970 U CN218092970 U CN 218092970U
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- China
- Prior art keywords
- fishing device
- dabber
- fishing
- slips
- coiled tubing
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Abstract
The utility model discloses a hydraulic pressure formula fishing device that can move back, include the top connection that is connected with coiled tubing, install the dabber on the top connection, slidable urceolus is installed outward to the dabber, install the slips that is used for elasticity dabber tip in the urceolus, hold-down mechanism is installed to dabber tip. The hydraulic retractable fishing spear is matched with the coiled tubing for use, and can be used for fishing fallen objects in a slim hole by being connected with the coiled tubing. The fishing spear is used for fishing the falling objects of the small borehole. The device is suitable for junk salvaging of horizontal wells, side drilling wells and inclined wells, and has the advantages of good passing ability, high withdrawal rate, high salvaging success rate and the like.
Description
Technical Field
The utility model relates to a technical field is salvaged to the oil, especially relates to a hydraulic pressure formula fishing device that can move back.
Background
The existing fishing tool is used for fishing by means of lifting and lowering of a pipe column or rotation of the pipe column in a mechanical mode when the pipe column is fished, and the coiled tubing cannot be fished by means of lifting and lowering or rotation of the pipe column due to the particularity of the coiled tubing. And because the particularity of self well condition in the pit, the stress condition is comparatively complicated among the tubular column fishing process, consequently when using current fishing spear to carry out junk and salvage, can not accurate judgement fishing spear whether get into in the junk to increase salvage cost. When the fishing needs to be released in other situations, the coiled tubing cannot be pulled out of the fishing tool in the modes of lifting and lowering or rotating the tubular column and the like, so that underground accidents are easily caused, and the underground situation is more complicated.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect or not enough, an object of the utility model is to provide a hydraulic pressure formula fishing device that can move back.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides a hydraulic pressure formula fishing device that can move back, includes the top connection that is connected with coiled tubing, install the dabber on the top connection, the urceolus is installed outward to the dabber, install slidable slips in the urceolus, hold-down mechanism is installed to the dabber tip.
The core shaft overcoat is equipped with the spring, the slips bottom compresses tightly with the spring mutually, urceolus tip and slips radial compression.
The end part of the slip is of a multi-petal structure which can be opened and closed.
The end part of the slip is of a uniform equal-dividing six-petal structure.
External threads are arranged outside the slips.
The pressing mechanism comprises a pressing cap installed at the end part of the slip.
And an alloy throttling nozzle is also arranged at the end part of the mandrel.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a hydraulic pressure formula fishing device that can move back uses with the cooperation of coiled tubing, and hydraulic pressure formula fishing spear that can move back is through being connected with coiled tubing, can carry out the junk of slim hole and salvage. The fishing spear is used for fishing the falling objects of the small borehole. The device is suitable for junk salvaging of horizontal wells, side drilling wells and inclined wells, and has the advantages of good passing ability, high withdrawal rate, high salvaging success rate and the like.
Compared with the traditional fishing tool, the traditional lower lifting or rotary pipe column fishing mode is changed, and once the fallen object is successfully fished or the lifting load is too heavy, the fallen object can be released through ball throwing or construction displacement improving, and secondary operation accidents can not be caused. Finally, the conical surface at the end part of the mandrel enables products to enter the interior of the fish easily, and fishing operation is facilitated.
Drawings
FIG. 1 is a schematic structural view of the hydraulic retractable fishing device of the present invention;
FIG. 2 is a side view of the slips of the present invention;
fig. 3 is a schematic view of the slip structure of the present invention.
In the figure, 1 — top joint; 2, a mandrel; 3-slips; 4, an outer barrel; 5, a slag saving nozzle; 6, pressing a cap; 7, a spring; 31-screw thread.
Detailed Description
The present invention will be described in detail with reference to the drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a hydraulic pressure formula fishing device that can move back, include the top connection 1 that is connected with coiled tubing, install dabber 2 on the top connection 1, slidable urceolus 4 is installed outward to dabber 2, install in the urceolus 4 and can slide slips 3, slips 3 is used for salvaging the junk, hold-down mechanism is installed to 2 tip of dabber.
Specifically, the mandrel 2 is sleeved with a spring 7, the bottom of the slip 3 is tightly pressed against the spring 7, and the end part of the outer cylinder 4 is radially tightly pressed against the slip 3. As shown in fig. 2, the ends of the slips 3 are in a multi-lobed configuration that can be opened and closed. Illustratively, the end part of the slip 3 is of a uniform equal-division hexavalve structure, the end part adopts a sawtooth external thread and a uniform-division slotting mode, and the thread is divided equally.
Preferably, as shown in fig. 3, the slip 3 is externally provided with an external thread 31 to facilitate fishing, so that the end clamping teeth can bite into the fish, thereby increasing the frictional resistance.
In addition, the pressing mechanism includes a pressing cap 6 mounted to an end of the slip 3.
The alloy throttling nozzle 5 is further installed at the end portion of the mandrel 2, the pressing cap 6 is installed at the end portion of the mandrel 2, the alloy throttling nozzle 5 is installed on the pressing cap 6, the pressing cap 6 can fix the alloy throttling nozzle 5 and can centralize and protect sawtooth-shaped external threads at the end portion of the slip 3; the alloy throttling nozzle 5 aims at:
1. the sand washing function prevents the influence on fishing caused by the settled sand or other impurities on the top of the fish; 2, throttling, releasing the hand, once the fish is lifted, dropping the steel ball on the alloy throttling nozzle in a lifting displacement or ball throwing mode, and hydraulically pushing the core shaft to move upwards to be separated from the fish.
The utility model discloses a working process and theory of operation do:
the utility model discloses well hydraulic pressure formula fishing device that can move back transfers fish upper portion along with coiled tubing, along with little discharge capacity wash behind sand setting or other impurity on fish upper portion, gets into the fish that the internal diameter of falling slightly is less than 3 external diameters of slips inside, along with the increase of lifting power, slips 3 and dabber 2 produce relative motion, force slips 3 to produce radial force, make it bite fish, realize the fishing operation. If the fish is stuck and can not be lifted, the steel ball falls on the alloy throttling 5 nozzle only by lifting or throwing, so that the hydraulic pushing core shaft is promoted to move upwards, and the fish can be separated from the steel ball.
For those skilled in the art, it is obvious that the above specific embodiments are only the preferred embodiments of the present invention, and therefore, the improvement and the change that some parts in the present invention may make are still embodied by the principle of the present invention, and the purpose of the present invention is still achieved by those skilled in the art, which all belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a hydraulic pressure formula fishing device that can move back which characterized in that includes top connection (1) that is connected with coiled tubing, install dabber (2) on top connection (1), urceolus (4) are installed outward to dabber (2), install slidable slips (3) in urceolus (4), hold-down mechanism is installed to dabber (2) tip.
2. The hydraulic retractable fishing device according to claim 1, characterized in that the mandrel (2) is externally sleeved with a spring (7), the bottom of the slip (3) is pressed against the spring (7), and the end of the outer cylinder (4) is radially pressed against the slip (3).
3. A hydraulic retractable fishing device according to claim 1, characterised in that the ends of the slips (3) are of a multi-lobed configuration that can be opened and closed.
4. A hydraulic retractable fishing device according to claim 3, characterised in that the ends of the slips (3) are of uniform equally-divided hexalobular configuration.
5. A hydraulic retractable fishing device according to claim 1 or 4, characterised in that the slips (3) are externally provided with an external thread (31).
6. A hydraulic retractable fishing device according to claim 1, characterised in that the hold-down mechanism comprises a hold-down cap (6) mounted to the end of the slips (3).
7. A hydraulic retractable fishing device according to claim 1 or 6, characterised in that an alloy throttling nozzle (5) is also mounted at the end of the mandrel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220847695.7U CN218092970U (en) | 2022-04-13 | 2022-04-13 | Hydraulic pressure formula fishing device that can move back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220847695.7U CN218092970U (en) | 2022-04-13 | 2022-04-13 | Hydraulic pressure formula fishing device that can move back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218092970U true CN218092970U (en) | 2022-12-20 |
Family
ID=84458393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220847695.7U Active CN218092970U (en) | 2022-04-13 | 2022-04-13 | Hydraulic pressure formula fishing device that can move back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218092970U (en) |
-
2022
- 2022-04-13 CN CN202220847695.7U patent/CN218092970U/en active Active
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