Coiled tubing fishing socket

Abstract

The utility model discloses a coiled tubing fishing socket which comprises a socket body, a screw rod is rotatably connected to the socket body, a ring body is in clearance fit with the socket body, a plurality of first rod bodies are rotatably connected to the ring body, second rod bodies are connected to the first rod bodies, and the second rod bodies are rotatably connected with the socket body. The multiple sets of second rod bodies are rotationally connected with wheel bodies. The screw rod is used for driving the ring body to move, the ring body can pull the multiple sets of second rod bodies to rotate outwards by means of the multiple sets of first rod bodies, then the placing positions of the multiple sets of wheel bodies are changed, the multiple sets of wheel bodies can make contact with the inner walls of oil pipes with different calibers, and then the barrel body is subjected to limiting moving operation; stability of salvage work can be guaranteed, and meanwhile the oil pipe salvage device is convenient to adapt to salvage work in oil pipes with different calibers.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil pipe operation related technical field especially relates to a continuous oil pipe fishing socket. BACKGROUND

[0002] The oil pipe fishing socket is a special tool for fishing the oil pipe falling into the oil well in oil exploitation and downhole operation, and its main function is to fish the tool falling into the oil pipe from the well through a specific structure. A continuous oil pipe fishing socket (authorized publication number: CN219387835U) is designed through a slide rod, a spring strip and a compression spring. The slide rod drives the fixed spring strip to move under the sliding of the slide rod. At this time, the spring strip drives the compression spring to stretch, which generates elastic force. Since the spring strip itself also has elastic force, when the spring strip contacts the inner wall of the oil pipe, it limits the fishing socket body, so that the fishing socket body is not easy to tilt and dislocate in the oil pipe, further enhancing the fishing effect of the equipment.

[0003] The existing fishing socket can move to a certain extent in the oil pipe, and is usually designed according to a certain specification of oil pipe, so it can only adapt to the use of corresponding oil pipe and lacks flexibility to a certain extent, which is not convenient to adapt to the fishing work in different caliber oil pipes. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a continuous oil pipe fishing socket.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A continuous oil pipe fishing socket, comprising a cylinder, a screw rod rotatably connected to the cylinder, an annular body gap-fitted to the cylinder, a plurality of first rod bodies rotatably connected to the annular body, a plurality of second rod bodies connected to the plurality of first rod bodies, the plurality of second rod bodies rotatably connected to the cylinder, and a plurality of wheel bodies rotatably connected to the plurality of second rod bodies.

[0007] Preferably, a threaded sleeve is threadedly connected to the cylinder, and a magnet is installed on the threaded sleeve.

[0008] Preferably, a plurality of slide rails are formed on the cylinder, and the plurality of slide rails are slidably connected to the annular body.

[0009] Preferably, a handle is connected to the screw rod.

[0010] Preferably, a lifting ring is connected to the cylinder.

[0011] Preferably, the plurality of wheel bodies are made of rubber material.

[0012] Preferably, the threaded sleeve is provided with a plurality of through holes.

[0013] The utility model discloses the beneficial effects are:

[0014] 1. Through the cooperation between the barrel, screw rod, ring body, first rod body, second rod body and wheel body, the movement of the ring body is driven by the screw rod, the ring body can be rotated outward by the first rod body and the second rod body, and the placement position of the wheel body is changed, so that the wheel body can contact the inner wall of the oil pipe with different diameters, and the barrel can be limited and moved, so that the stability of the fishing work is ensured, and the fishing work in the oil pipe with different diameters is convenient to adapt.

[0015] 2. Through the cooperation between the threaded sleeve, magnet and barrel, the threaded sleeve is connected with the barrel by threads, the magnet can be disassembled and assembled, the magnet can be replaced, and the stability of the magnetic fishing work is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a structure schematic diagram of coiled tubing fishing barrel;

[0017] Figure 2 For Figure 1 The structure schematic diagram of first rod body, second rod body and wheel body in the first aspect of the utility model;

[0018] Figure 3 For Figure 1 The structure schematic diagram of barrel, screw rod and ring body in the first aspect of the utility model;

[0019] Figure 4 For Figure 1 The structure schematic diagram of barrel, ring body and magnet in the first aspect of the utility model;

[0020] Figure 5 For Figure 1 The structure schematic diagram of barrel, threaded sleeve and slide rail in the first aspect of the utility model.

[0021] In the drawing: 1, barrel;2, screw rod;3, ring body;4, first rod body;5, second rod body;6, wheel body;7, threaded sleeve;8, magnet;9, handle;10, slide rail;11, lifting ring;12, through hole. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0023] Embodiment 1, refer to Figures 1 to 5A coiled tubing fishing socket, including a socket body 1, a screw rod 2 is rotatably connected at the socket body 1, a ring body 3 is gap-fitted at the socket body 1, the ring body 3 can move at the socket body 1, a plurality of first rod bodies 4 are rotatably connected at the ring body 3, a plurality of second rod bodies 5 are connected at the plurality of first rod bodies 4, the plurality of second rod bodies 5 are rotatably connected with the socket body 1, a plurality of wheel bodies 6 are rotatably connected at the plurality of second rod bodies 5, the plurality of wheel bodies 6 are used to contact with the inner wall of the oil pipe, the movement of the ring body 3 is driven by the screw rod 2, the ring body 3 can drive the plurality of first rod bodies 4 to pull the plurality of second rod bodies 5 to rotate outward synchronously, so that the positions of the plurality of wheel bodies 6 can be changed, and the plurality of wheel bodies 6 can contact with the inner wall of the oil pipe of different diameters to perform adaptive positioning and guiding.

[0024] In the embodiment, a threaded sleeve 7 is threadedly connected at the socket body 1, a magnet 8 is installed at the threaded sleeve 7, the magnet 8 is used to magnetically attract the metal tools falling into the oil pipe, a plurality of sliding rails 10 are processed at the socket body 1, the plurality of sliding rails 10 are slidably connected with the ring body 3, a handle 9 is connected at the screw rod 2, the handle 9 is used to drive the screw rod 2 to rotate, a lifting ring 11 is connected at the socket body 1, the lifting ring 11 is used to cooperate with the steel wire rope outside to pull the socket body 1, so that the socket body 1 can be conveniently sunk into or moved out of the oil pipe, the plurality of wheel bodies 6 are all made of rubber material, so that the contact friction force between the wheel bodies 6 and the oil pipe can be increased, a plurality of through holes 12 are formed at the threaded sleeve 7, the through holes 12 are used to pass the fluid in the oil pipe through the threaded sleeve 7 into the socket body 1, so that the fluid cannot affect the socket body 1 to probe into the oil pipe.

[0025] The working principle of the embodiment is as follows: in use, first, according to the diameter of the actual oil pipe, the handle 9 drives the screw rod 2 to drive the ring body 3 to move, the ring body 3 can drive the plurality of first rod bodies 4 to pull the plurality of second rod bodies 5 to rotate outward synchronously, so that the positions of the plurality of wheel bodies 6 can be adjusted, and the plurality of wheel bodies 6 can contact with the inner wall of the oil pipe to be limited, so that the socket body 1 can be stably lifted and moved, and the socket body 1 can contact with the tools falling into the oil pipe by the magnet 8, and the tools can be fished out by magnetic attraction.

[0026] The above is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A coiled tubing overshot, comprising a barrel (1), characterized in that: The barrel (1) is rotatably connected to a screw rod (2), the barrel (1) is loosely fitted with a ring body (3), the ring body (3) is rotatably connected to multiple groups of first rod bodies (4), the multiple groups of first rod bodies (4) are all connected to second rod bodies (5), the multiple groups of second rod bodies (5) are rotatably connected to the barrel (1), and the multiple groups of second rod bodies (5) are rotatably connected to wheel bodies (6).

2. The coiled tubing overshot according to claim 1, characterized in that: The cylinder (1) is threadedly connected to a threaded sleeve (7), and a magnet (8) is installed on the threaded sleeve (7).

3. The coiled tubing overshot according to claim 1, characterized in that: The cylinder (1) is processed with multiple sets of slide rails (10), and the multiple sets of slide rails (10) are slidably connected to the ring body (3).

4. The coiled tubing overshot according to claim 1, characterized in that: The screw rod (2) is connected to a handle (9).

5. The coiled tubing overshot according to claim 1, characterized in that: The cylinder (1) is connected with a hanging ring (11).

6. The coiled tubing overshot according to claim 1, characterized in that: The plurality of wheel bodies (6) are all made of rubber.

7. The coiled tubing overshot according to claim 2, characterized in that: The threaded sleeve (7) is provided with multiple groups of through holes (12).

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