CN216381296U

CN216381296U - Downhole coiled tubing cuts and drags for integrative instrument

Info

Publication number: CN216381296U
Application number: CN202123265062.XU
Authority: CN
Inventors: 李小东; 李红伟; 赵建龙
Original assignee: Tianjin Guangzhi Technical Service Co ltd
Current assignee: Tianjin Guangzhi Technical Service Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-04-26
Anticipated expiration: 2031-12-23

Abstract

The utility model belongs to the technical field of downhole operation tools, in particular to a downhole coiled tubing cutting and fishing integrated tool, which aims at the problems of inconvenient operation and inconvenient replacement of a cutting knife when the coiled tubing is cut, and provides the following scheme, which comprises a connecting cylinder, wherein one side inner wall of the connecting cylinder is provided with a mounting groove, the bottom end side wall of the connecting cylinder is fixedly provided with a mounting frame, one side inner wall of the mounting frame is provided with a through groove, one side inner wall of the mounting frame is rotatably connected with a rotating rod, the outer surface of the rotating rod is tightly sleeved with a rotating gear, and a toothed plate meshed with the rotating gear is arranged in the mounting frame; according to the coiled tubing cutting device, the rotating gear can drive the toothed plate to move through rotation of the rotating rod, so that the cutting knife can move, the coiled tubing cutting operation is achieved, the cutting knife is fished when the cutting is completed through the arrangement of the two fishing plates, and the coiled tubing cutting and fishing integrated operation is achieved.

Description

Downhole coiled tubing cuts and drags for integrative instrument

Technical Field

The utility model relates to the technical field of downhole operation tools, in particular to a downhole coiled tubing cutting and fishing integrated tool.

Background

The coiled tubing is a tubing made of low carbon alloy steel and has good flexibility, and is also called as flexible tubing, and a roll of coiled tubing is several kilometers long. The coiled tubing operation equipment has the characteristics of operation under pressure and continuous lifting, and has small volume, quick operation period and low cost.

When salvaging coiled tubing among the prior art, need earlier with not complete cracked coiled tubing cut off salvage, so not only increased workman's intensity of labour, the cost is higher, influences salvage efficiency, when carrying out cutting operation, the cutting knife can produce the harm to the cutting efficiency of influence to it is inconvenient carrying out the in-process operation of salvaging.

Therefore, an underground coiled tubing cutting and fishing integrated tool is needed to solve the problem that coiled tubing is inconvenient to operate and replace a cutting knife when cutting.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cutting and fishing integrated tool for a down-hole coiled tubing, which solves the problems of inconvenient operation and inconvenient replacement of a cutting knife when the coiled tubing is cut.

In order to achieve the purpose, the utility model adopts the following technical scheme: a cutting and fishing integrated tool for a downhole continuous oil pipe comprises a connecting cylinder, wherein a mounting groove is formed in the inner wall of one side of the connecting cylinder, a mounting frame is fixed on the side wall of the bottom end of the connecting cylinder, a through groove is formed in the inner wall of one side of the mounting frame, a rotating rod is rotatably connected to the inner wall of one side of the mounting frame, a rotating gear is fixedly sleeved on the outer surface of the rotating rod, toothed plates meshed with the rotating gear are mounted inside the mounting frame and symmetrically arranged, a cutting knife is fixed on the inner wall of one side of each toothed plate, two limiting sleeves symmetrically arranged are fixed on the inner wall of one side of the mounting frame, a rotating motor fixed at one end of the rotating rod is mounted on the side wall of one side of the connecting cylinder, a supporting sleeve is fixed on the inner wall of one side of the mounting frame, and a sliding rod is slidably connected to the inner wall of one side of the supporting sleeve, the bottom side wall of the sliding rod and the side walls of the two sides of the toothed plate are hinged to support rods, and a moving assembly is arranged on the side wall of one side of the connecting cylinder.

Preferably, the movable assembly comprises a sliding plate fixed with the top side wall of the sliding rod, an extension spring fixed with one side wall of the sliding plate, the bottom end of the extension spring is fixed with the inside of one side of the supporting sleeve, the extension spring is sleeved on the outer surface of the sliding rod in a sliding manner, two symmetrically arranged connecting grooves are formed in the inner wall of one side of the connecting cylinder, the moving rod is connected to the inner wall of one side of each connecting groove in a sliding manner, a fishing plate is fixed to the side wall of one side of the moving rod, a lifting plate is connected to the side wall of one side of the connecting cylinder in a sliding manner, the lifting plate is fixed with the side wall of one side of the sliding plate, and a connecting rod is hinged between the lifting plate and the side wall of the two sides of the moving rod.

Preferably, the movable rod is connected with the inner wall of one side of the connecting cylinder in a sliding manner, and the lifting plate and the sliding plate are arranged in parallel.

Preferably, the sliding plate is slidably connected with the inner wall of one side of the connecting cylinder, and the sliding plate and the toothed plate are arranged in parallel.

Preferably, the cutting knife is connected with the inner wall of one side of the mounting frame in a sliding mode, and the toothed plate is connected with the inner wall of one side of the connecting cylinder in a sliding mode.

Preferably, the two toothed plates are arranged in a staggered manner, and the toothed plates are connected with the inner wall of one side of the limiting sleeve in a sliding manner.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the coiled tubing cutting device, the rotating gear can drive the toothed plate to move through rotation of the rotating rod, so that the cutting knife can move, the coiled tubing cutting operation is achieved, the cutting knife is fished when the cutting is completed through the arrangement of the two fishing plates, and the coiled tubing cutting and fishing integrated operation is achieved.

2. According to the utility model, the sliding rod is moved to drive the lifting plate to move when moving, so that the lifting plate is moved to realize the fishing operation of the cut continuous oil pipe, and the cutting knife is detachably arranged and is convenient to replace when being damaged.

Drawings

FIG. 1 is a schematic main sectional structure view of a downhole coiled tubing cutting and fishing integrated tool provided by the utility model;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is a schematic structural view of a downhole coiled tubing cutting and fishing integrated tool in a front view.

In the figure: 1. a connecting cylinder; 2. mounting grooves; 3. installing a frame; 4. a through groove; 5. rotating the rod; 6. a rotating gear; 7. a toothed plate; 8. a cutting knife; 9. a limiting sleeve; 10. rotating the motor; 11. a support sleeve; 12. a slide bar; 13. a support bar; 14. a moving assembly; 140. a sliding plate; 141. a tension spring; 142. connecting grooves; 143. a travel bar; 144. fishing out the plate; 145. a lifting plate; 146. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a downhole coiled tubing cutting and fishing integrated tool comprises a connecting cylinder 1, wherein one side inner wall of the connecting cylinder 1 is provided with a mounting groove 2, a mounting frame 3 is fixed on the bottom side wall of the connecting cylinder 1, one side inner wall of the mounting frame 3 is provided with a through groove 4, one side inner wall of the mounting frame 3 is rotatably connected with a rotating rod 5, the outer surface of the rotating rod 5 is tightly sleeved with a rotating gear 6, a toothed plate 7 meshed with the rotating gear 6 is installed inside the mounting frame 3, the two toothed plates 7 are symmetrically arranged, one side inner walls of the two toothed plates 7 are both fixed with a cutting knife 8, one side inner wall of the mounting frame 3 is fixed with two symmetrically arranged limiting sleeves 9, one side wall of the connecting cylinder 1 is provided with a rotating motor 10 fixed with one end of the rotating rod 5, one side inner wall of the mounting frame 3 is fixed with a supporting sleeve 11, one side inner wall of the supporting sleeve 11 is slidably connected with a sliding rod 12, articulated between the bottom lateral wall of slide bar 12 and the both sides lateral wall of dentate plate 7 have a bracing piece 13, and one side lateral wall of connecting cylinder 1 is provided with removal subassembly 14, and is concrete, through the rotation of dwang 5, makes running gear 6 can drive dentate plate 7 and remove to make cutting knife 8 remove, realize the cutting operation to coiled tubing, through the setting that removes subassembly 14, when cutting coiled tubing, improve the cutting to it and drag for efficiency.

The movable assembly 14 includes a sliding plate 140 fixed to a top side wall of the sliding rod 12, a telescopic spring 141 fixed to a side wall of one side of the sliding plate 140, a bottom end of the telescopic spring 141 fixed to an inside of one side of the support sleeve 11, the telescopic spring 141 slidably sleeved to an outer surface of the sliding rod 12, two symmetrically disposed connecting grooves 142 formed in an inner wall of one side of the connecting cylinder 1, a moving rod 143 slidably connected to an inner wall of one side of the connecting groove 142, a fishing plate 144 fixed to a side wall of one side of the moving rod 143, a lifting plate 145 slidably connected to a side wall of one side of the connecting cylinder 1, the lifting plate 145 fixed to a side wall of one side of the sliding plate 140, a connecting rod 146 hinged between the lifting plate 145 and a side wall of two sides of the moving rod 143, through two settings of dragging for board 144, make cutting knife 8 when the cutting is accomplished, drag for the operation to it, realize dragging for integrative operation to coiled tubing's cutting.

The shift bar 143 is with one side inner wall sliding connection of connecting cylinder 1, lifter plate 145 is parallel arrangement with sliding plate 140, sliding plate 140 is one side inner wall sliding connection of connecting cylinder 1, sliding plate 140 is parallel arrangement with castellated plate 7, one side inner wall sliding connection of cutting knife 8 and installing frame 3, castellated plate 7 is one side inner wall sliding connection of connecting cylinder 1, two castellated plates 7 are the setting of staggering, castellated plate 7 and one side inner wall sliding connection of stop collar 9, specifically, through the setting of dismantling of cutting knife 8, when cutting knife 8 produces the damage, be convenient for change the processing to it.

The working principle is as follows: when the continuous oil pipe needs to be cut, a power supply is started to drive the rotating motor 10 to drive the rotating rod 5 to rotate, the rotating rod 5 can drive the rotating gear 6 to rotate when rotating, and the two cutting knives 8 are moved through the meshing action of the rotating gear 6 and the toothed plate 7, so that the continuous oil pipe is cut; when the toothed plate 7 moves, the support rod 13 drives the sliding rod 12 to move, so that the sliding plate 140 can drive the lifting plate 145 to move, the connecting rod 146 can push the moving rod 143, the moving rod 143 can drive the fishing plate 144 to move when moving, and the two fishing plates 144 are arranged, so that the cutting knife 8 can fish the cutting knife when the cutting is finished, and the cutting and fishing integrated operation of the coiled tubing is realized; under long-time use, when cutting knife 8 produced the damage, through the setting of dismantling of cutting knife 8, be convenient for change the processing to it.

The rotating motor 10 is commercially available, and the rotating motor 10 is provided with a power supply, which belongs to the mature technology in the field and is fully disclosed, so repeated description in the specification is omitted.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides an integrative instrument is dragged for in coiled tubing cuts in pit, includes connecting cylinder (1), its characterized in that, mounting groove (2) have been seted up to one side inner wall of connecting cylinder (1), the bottom lateral wall of connecting cylinder (1) is fixed with installing frame (3), one side inner wall of installing frame (3) is provided with logical groove (4), one side inner wall of installing frame (3) rotates and is connected with dwang (5), the surface fastening of dwang (5) has cup jointed rotating gear (6), the internally mounted of installing frame (3) have with rotating gear (6) engaged with dentate plate (7), two dentate plate (7) are the symmetry and set up, two one side inner wall of dentate plate (7) all is fixed with cutting knife (8), one side inner wall of installing frame (3) is fixed with two stop collar (9) that are the symmetry and set up, connecting cylinder (1) one side lateral wall install with the fixed rotation motor (10) of one end of dwang (5), one side inner wall of installing frame (3) is fixed with supports cover (11), one side inner wall sliding connection who supports cover (11) has slide bar (12), the bottom lateral wall of slide bar (12) with it has bracing piece (13) to articulate between the both sides lateral wall of profile plate (7), one side lateral wall of connecting cylinder (1) is provided with removal subassembly (14).

2. The downhole coiled tubing cutting and fishing integrated tool according to claim 1, wherein the moving assembly (14) comprises a sliding plate (140) fixed to a side wall of a top end of the sliding rod (12), a telescopic spring (141) fixed to a side wall of one side of the sliding plate (140), a bottom end of the telescopic spring (141) is fixed to an inner portion of one side of the support sleeve (11), the telescopic spring (141) is slidably sleeved on an outer surface of the sliding rod (12), two symmetrically arranged connecting grooves (142) are formed in an inner wall of one side of the connecting cylinder (1), a moving rod (143) is slidably connected to an inner wall of one side of the connecting grooves (142), a fishing plate (144) is fixed to a side wall of one side of the moving rod (143), a lifting plate (145) is slidably connected to a side wall of one side of the connecting cylinder (1), and the lifting plate (145) is fixed to a side wall of one side of the sliding plate (140), a connecting rod (146) is hinged between the lifting plate (145) and the side wall of the two sides of the moving rod (143).

3. The tool as claimed in claim 2, wherein the moving rod (143) is slidably connected to an inner wall of one side of the connecting cylinder (1), and the lifting plate (145) is parallel to the sliding plate (140).

4. The tool as claimed in claim 2, wherein the sliding plate (140) is slidably connected to one side of the inner wall of the connecting cylinder (1), and the sliding plate (140) is parallel to the toothed plate (7).

5. The downhole coiled tubing cutting and fishing integrated tool according to claim 1, wherein the cutting knife (8) is slidably connected with the inner wall of one side of the mounting frame (3), and the toothed plate (7) is slidably connected with the inner wall of one side of the connecting cylinder (1).

6. The downhole coiled tubing cutting and fishing integrated tool according to claim 1, wherein the two toothed plates (7) are arranged in a staggered manner, and the toothed plates (7) are slidably connected with the inner wall of one side of the limiting sleeve (9).