CN218030117U

CN218030117U - Special mill shoe for horizontal well drilling plug

Info

Publication number: CN218030117U
Application number: CN202222688876.2U
Authority: CN
Inventors: 巩建芳; 张志涛; 张洪河
Original assignee: Dongying Zhongcheng Petroleum Technology Co ltd
Current assignee: Dongying Zhongcheng Petroleum Technology Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2022-12-13
Anticipated expiration: 2032-10-13

Abstract

The utility model relates to a milling tool technical field discloses a special junk mill of horizontal well drilling plug, including drilling the plug main part, it is provided with the ring channel to bore plug main part external diameter bottom, the ring channel outer wall is provided with a plurality of draw-in grooves, it is provided with the fixed slot to bore plug main part bottom, it is provided with the milling head to bore plug main part below, milling head top end fixedly connected with solid fixed ring, gu fixed ring outer wall is provided with a plurality of draw-in grooves, the draw-in groove inner wall is provided with the card post, the ring channel outer wall is provided with first semi-ring and second semi-ring, first semi-ring front end both sides all are provided with the mounting groove, first semi-ring rear end both sides all are provided with the thread groove, second semi-ring front end both sides all are provided with the thread groove. The utility model discloses in, through the joint of solid fixed ring and fixed slot to and the fixed of card post, and inject the simplification that has realized the installation to the card post through the semi-ring, save time, consequently can improve repair efficiency.

Description

Special mill shoe for horizontal well drilling plug

Technical Field

The utility model relates to a milling tool technical field especially relates to a special junk mill of horizontal well drilling plug.

Background

In the process of working of an oil well and a water well, when damaged fish in the well cannot be normally fished, a well repairing tool needs to be used for repairing, and the grinding shoe is a common well repairing tool and is used for grinding and milling the fallen objects in the well.

In the prior art, when the grinding shoe is used, the grinding shoe is usually welded on a drill plug in a welding mode, so that when the grinding shoe is large in loss and needs to be replaced, a cutting gun needs to be used for cutting and replacing the grinding shoe, the grinding shoe needs to be connected again through welding after replacement, and time is wasted in the process.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a special milling shoe for a horizontal well drilling plug.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a special junk mill of horizontal well drilling plug, is including boring the stopper main part, it is provided with the ring channel to bore stopper main part external diameter bottom, the ring channel outer wall is provided with a plurality of draw-in grooves, it is provided with the fixed slot to bore stopper main part bottom, it is provided with the milling head to bore stopper main part below, milling head top end fixedly connected with solid fixed ring, gu fixed ring outer wall is provided with a plurality of draw-in grooves, the draw-in groove inner wall is provided with the card post, the ring channel outer wall is provided with first semi-ring and second semi-ring, first semi-ring front end both sides all are provided with the mounting groove, first semi-ring rear end both sides all are provided with the thread groove, second semi-ring front end both sides all are provided with the thread groove, the equal threaded connection of thread groove inner wall has the screw, the equal fixedly connected with spiral shell head of screw front end.

As a further description of the above technical solution:

the outer wall of the milling head is fixedly connected with a plurality of milling teeth, and the milling teeth are made of tungsten steel.

As a further description of the above technical solution:

the grinding and milling teeth are equal in spacing distance.

As a further description of the above technical solution:

the outer wall of the milling head is provided with a plurality of grooves, and one ends of the inner sides of the grooves are provided with transverse water holes.

As a further description of the above technical solution:

the shape of the fixing ring is matched with that of the fixing groove.

As a further description of the above technical solution:

the annular groove, the first semi-ring and the second semi-ring are matched in shape.

As a further description of the above technical solution:

the screw head and the mounting groove are matched in shape.

As a further description of the above technical solution:

the drill plug main body and the milling head are internally provided with through holes.

The utility model discloses following beneficial effect has:

the utility model discloses in, realized the simplification to the junk mill installation through mounting structure to can save time, and then improve repair efficiency, solved the installation to the junk mill in the background art and be through the welded mode, consequently more troublesome when changing.

Drawings

FIG. 1 is a front perspective view of a horizontal well drilling plug special-purpose grind shoe provided by the present invention;

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

fig. 3 is a bottom perspective view of a special milling shoe for a horizontal well drilling plug provided by the utility model;

FIG. 4 is a schematic perspective view of a ring groove structure of a special milling shoe for a horizontal well drill plug provided by the present invention;

FIG. 5 is a schematic perspective view of a fixing ring structure of a special grinding shoe for a horizontal well drilling plug provided by the present invention;

FIG. 6 is a schematic perspective view of a fixing groove structure of a special milling shoe for a horizontal well drilling plug provided by the present invention;

FIG. 7 is a schematic perspective view of a mounting groove structure of a special milling shoe for a horizontal well drilling plug provided by the present invention;

fig. 8 is a schematic perspective view of a thread groove structure of a special milling shoe for a horizontal well drilling plug provided by the utility model.

Illustration of the drawings:

1. a first half ring; 2. grinding the milling head; 3. a transverse water hole; 4. a groove; 5. grinding and milling teeth; 6. drilling a plug body; 7. a screw head; 8. mounting grooves; 9. an annular groove; 10. clamping the column; 11. a fixing ring; 12. a card slot; 13. fixing grooves; 14. a screw; 15. a second half ring; 16. a thread groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-8, the present invention provides an embodiment: a special milling shoe for a drilling plug of a horizontal well comprises a drilling plug main body 6, wherein the bottom of the outer diameter of the drilling plug main body 6 is provided with a ring groove 9, the outer wall of the ring groove 9 is provided with a plurality of clamping grooves 12, the bottom end of the drilling plug main body 6 is provided with a fixing groove 13, a milling head 2 is arranged below the drilling plug main body 6, the top end of the milling head 2 is fixedly connected with a fixing ring 11, the outer wall of the fixing ring 11 is provided with a plurality of clamping grooves 12, the inner wall of the clamping groove 12 is provided with a clamping column 10, the outer wall of the ring groove 9 is provided with a first half ring 1 and a second half ring 15, both sides of the front end of the first half ring 1 are provided with mounting grooves 8, both sides of the rear end of the first half ring 1 are provided with thread grooves 16, both sides of the front end of the second half ring 15 are provided with thread grooves 16, the equal threaded connection of 16 inner walls of thread groove has screw 14, the equal fixedly connected with spiral shell head 7 in screw 14 front end, gu fixed ring 11 injects in fixed slot 13, at this moment insert card post 10 in draw-in groove 12, later install first semi-ring 1 and second semi-ring 15 on ring channel 9, thereby keep off card post 10, prevent card post 10 roll-off, twist and move spiral shell head 7 and take screw 14 to rotate along thread groove 16, because the screw 14 roll-off is prevented to the screw thread effect, thereby the installation of milling head 2 has been realized and has been dismantled, when restoreing the horizontal well, because the loss of milling tooth 5 is too big, lead to needing often to change, consequently simplify the change process through this structure, thereby save time, repair efficiency has been improved.

A plurality of grinding and milling teeth 5 of 2 outer wall fixedly connected with of milling head, the material of grinding and milling tooth 5 sets up to the wolfram steel, consequently can increase certain life when using because the material is the wolfram steel, the spacing distance of grinding and milling tooth 5 equals, 2 outer walls of milling head are provided with a plurality of recesses 4, recess 4 inboard one end all is provided with horizontal water eyes 3, bore stopper

main part

6 and 2 inside through-holes that all are provided with of milling head, in the use, can prevent through-hole blocking through horizontal water eyes 3, solid fixed ring 11 agrees with mutually with fixed slot 13 shape, ring channel 9, first semi-ring 1 agrees with mutually with second semi-ring 15 shape, spiral shell 7 agrees with mutually with mounting groove 8 shape, the shape agrees with and improves the installation effectiveness at the in-process of installation.

The working principle is as follows: at first, fixed ring 11 is inserted into fixed slot 13, at this moment, card post 10 is inserted into draw-in groove 12, later install first semi-ring 1 and second semi-ring 15 on ring channel 9, thereby block card post 10, prevent card post 10 roll-off, twist and move spiral shell head 7 and take screw 14 to rotate along thread groove 16, because the screw thread effect prevents screw 14 roll-off, thereby realized the installation dismantlement to milling head 2, when restoreing the horizontal well, when milling tooth 5 loss degree is too big, can save time when needing to be changed, improve repair efficiency.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a special junk mill of horizontal well drilling plug, includes drilling plug main part (6), its characterized in that: the drill plug is characterized in that an annular groove (9) is formed in the bottom of the outer diameter of the drill plug body (6), a plurality of clamping grooves (12) are formed in the outer wall of the annular groove (9), fixing grooves (13) are formed in the bottom end of the drill plug body (6), a milling head (2) is arranged below the drill plug body (6), a fixing ring (11) is fixedly connected to the top end of the milling head (2), the fixing ring (11) is provided with a plurality of clamping grooves (12), clamping grooves (12) are provided with clamping columns (10), the outer wall of the annular groove (9) is provided with a first semi-ring (1) and a second semi-ring (15), mounting grooves (8) are formed in the two sides of the front end of the first semi-ring (1), threaded grooves (16) are formed in the two sides of the rear end of the first semi-ring (1), threaded grooves (16) are formed in the two sides of the front end of the second semi-ring (15), screws (14) are connected to the inner wall of the threaded grooves (16), and screw heads (7) are fixedly connected to the front ends of the screws (14).

2. The special milling shoe for the horizontal well drilling plug according to claim 1, characterized in that: the outer wall of the milling head (2) is fixedly connected with a plurality of milling teeth (5), and the milling teeth (5) are made of tungsten steel.

3. The horizontal well drilling plug special-purpose grind shoe of claim 2, characterized in that: the intervals of the grinding and milling teeth (5) are equal.

4. The special milling shoe for the horizontal well drilling plug according to claim 1, characterized in that: the outer wall of the milling head (2) is provided with a plurality of grooves (4), and one ends of the inner sides of the grooves (4) are provided with transverse water holes (3).

5. The horizontal well drilling plug special-purpose grind shoe of claim 1, characterized in that: the shapes of the fixing ring (11) and the fixing groove (13) are matched.

6. The horizontal well drilling plug special-purpose grind shoe of claim 1, characterized in that: the annular groove (9), the first semi-ring (1) and the second semi-ring (15) are matched in shape.

7. The horizontal well drilling plug special-purpose grind shoe of claim 1, characterized in that: the screw head (7) and the mounting groove (8) are matched in shape.

8. The horizontal well drilling plug special-purpose grind shoe of claim 1, characterized in that: the drill plug body (6) and the milling head (2) are internally provided with through holes.