CN215761539U - Drill bit for petroleum drilling - Google Patents

Abstract

The utility model discloses a drill bit for petroleum drilling, and relates to the technical field of drill bits. The drill bit comprises a drill rod, a drill bit body and a sliding plate, wherein a connecting block is fixedly connected to the lower surface of the drill rod, an opening is formed in the upper surface of the drill bit body, a limiting groove is formed in the drill bit body, threaded holes are formed in the upper surface of the drill bit body and the bottom surface of the limiting groove, a limiting bolt is arranged in each threaded hole, a sliding groove is formed in the upper surface of the drill bit body, the sliding plate is arranged in each sliding groove, a fixing hole is formed in the upper surface of the sliding plate, the fixing bolt is arranged in each fixing hole, and cutting teeth are arranged on the lower surface of the drill bit body. According to the utility model, the drill rod and the connecting block penetrate through the opening, then the drill bit body is rotated to enable one side surface of the connecting block to be attached to the drill bit body, the limiting bolt is inserted into the threaded hole to limit the drill bit body, so that the installation of the drill bit is completed, and meanwhile, the sliding plate is moved to enable one side surface of the sliding plate to be closely attached to the drill rod, so that soil is effectively prevented from entering the interior of the drill bit body.

Description

Drill bit for petroleum drilling

Technical Field

The utility model belongs to the technical field of drill bits, and particularly relates to a drill bit for petroleum drilling.

Background

At present, a plurality of drill bits are used in petroleum and geological drilling sites, and are divided into a steel body and a matrix due to different manufacturing processes and used materials, but most of cutting teeth used by the drill bits are PDC composite sheets, namely the steel body PDC drill bit and the matrix PDC drill bit. The existing PDC drill bit has the advantages of high mechanical drilling speed, high footage, less drilling pressure, high adaptable drilling speed and the like in adaptation to stratum, is widely applied to petroleum and geological drilling, and brings great economic and social benefits to petroleum enterprises. The existing drill bit needs to be replaced after being worn in the using process, the existing drill bit is inconvenient to disassemble and assemble, a lot of workload is increased for workers, and the drill bit for petroleum drilling is provided aiming at the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a drill bit for petroleum drilling, which solves the problem that the existing drill bit is inconvenient to replace.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a drill bit for petroleum drilling, which comprises a drill bit, a drill bit body and a sliding plate, wherein the lower surface of the drill bit is fixedly connected with a connecting block, so that the connection with the drill bit body is more stable, the drill bit body is prevented from being separated from the drill bit body, the upper surface of the drill bit body is provided with an opening, a limiting groove is arranged inside the drill bit body, so that the connecting block can conveniently enter, the drill bit body is connected with the drill bit, the upper surface and the bottom surface of the limiting groove of the drill bit body are respectively provided with a threaded hole for conveniently arranging a limiting bolt, the limiting bolt is arranged inside the threaded hole for conveniently limiting the connecting block to freely rotate, the upper surface of the drill bit body is provided with a sliding groove for conveniently placing the sliding plate, the sliding plate is arranged inside the sliding groove, the upper surface of the sliding plate is provided with a fixing hole for conveniently arranging a fixing bolt, and the fixing bolt is arranged inside the fixing hole, the lower surface of the drill bit body is provided with cutting teeth, so that drilling is facilitated.

Further, the limiting bolt is in threaded connection with the drill bit body.

Further, the sliding plate is in sliding fit with the drill bit body, so that the sliding plate can slide conveniently.

Further, the fixing bolt is in threaded connection with the sliding plate.

Furthermore, the size of the opening is matched with the connecting block, so that the connecting block can penetrate through the opening to enter the limiting groove conveniently.

Further, the size and the opening of slide suit, and the slide of being convenient for can shelter from the opening, prevents that earth from getting into the inside of drill bit body.

The lower surface threaded connection of drill bit body has the guide to bore, plays the guide effect, effectively prevents the well slope, improves well drilling efficiency.

The utility model has the following beneficial effects:

according to the utility model, the drill rod and the connecting block penetrate through the opening, then the drill bit body is rotated to enable one side surface of the connecting block to be attached to the drill bit body, the limiting bolt is inserted into the threaded hole to limit the drill bit body, so that the installation of the drill bit is completed, and meanwhile, the sliding plate is moved to enable one side surface of the sliding plate to be closely attached to the drill rod, so that soil is effectively prevented from entering the interior of the drill bit body.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic top view of a drill bit for oil drilling;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic bottom view of a drill bit for oil drilling;

FIG. 4 is an elevation view of a drill bit for oil drilling;

fig. 5 is a schematic view of the cross-sectional structure a-a in fig. 4.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a drill stem; 2. connecting blocks; 3. a drill bit body; 4. an opening; 5. a limiting groove; 6. a threaded hole; 7. a limit bolt; 8. a slide plate; 9. fixing the bolt; 10. cutting teeth; 11. and guiding the drill.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate orientations or positional relationships, are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-5, the drill bit for oil drilling of the present invention comprises a drill rod 1, a drill bit body 3 and a sliding plate 8, wherein a connecting block 2 is fixedly connected to a lower surface of the drill rod 1, so as to facilitate more stable connection with the drill bit body 3 and prevent the drill bit body 3 from separating from the drill rod 1, an opening 4 is formed in an upper surface of the drill bit body 3, a limiting groove 5 is formed in the drill bit body 3, so as to facilitate the entry of the connecting block 2, so that the drill bit body 3 is connected with the drill rod 1, threaded holes 6 are formed in both an upper surface of the drill bit body 3 and a bottom surface of the limiting groove 5, so as to facilitate the arrangement of limiting bolts 7, so as to facilitate the free rotation of the connecting block 2, a limiting bolt 7 is formed in the threaded hole 6, a sliding groove is formed in the upper surface of the drill bit body 3, so as to facilitate the placement of the sliding plate 8, a fixing hole is formed in the upper surface of the sliding plate 8, so as to facilitate the arrangement of the fixing bolt 9, the fixing bolt 9 is arranged in the fixing hole, and the lower surface of the drill bit body 3 is provided with cutting teeth 10, so that drilling is facilitated.

The limiting bolt 7 is in threaded connection with the drill bit body 3.

The sliding plate 8 is in sliding fit with the drill bit body 3, so that the sliding plate 8 can slide conveniently.

The fixing bolt 9 is in threaded connection with the sliding plate 8.

The size of opening 4 suits with connecting block 2, is convenient for connecting block 2 to run through opening 4 and get into inside the spacing groove 5.

The size of slide 8 suits with opening 4, and the slide 8 of being convenient for can shelter from opening 4, prevents that earth from getting into the inside of drill bit body 3.

The lower surface threaded connection of drill bit body 3 has guide drill 11, plays the guide effect, effectively prevents the well slope, improves well drilling efficiency.

The drill bit for petroleum drilling comprises a drill rod 1 and a connecting block 2 which penetrate through an opening in the use process, a drill bit body 3 is rotated to enable one side face of the connecting block 2 to be attached to the drill bit body 3, a limiting bolt 7 is inserted into a threaded hole 6 to limit the drill bit body 3, and therefore installation of the drill bit is completed, and meanwhile a sliding plate 8 is moved to enable one side face of the sliding plate 8 to be closely attached to the drill rod 1, so that soil is effectively prevented from entering the drill bit body 3.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims (7)

1. A drill bit for oil drilling, including drilling rod (1), drill bit body (3) and slide (8), its characterized in that: the drill bit is characterized in that a connecting block (2) is fixedly connected to the lower surface of the drill rod (1), an opening (4) is formed in the upper surface of the drill bit body (3), a limiting groove (5) is formed in the inside of the drill bit body (3), threaded holes (6) are formed in the upper surface of the drill bit body (3) and the bottom surface of the limiting groove (5), limiting bolts (7) are arranged in the threaded holes (6), a sliding groove is formed in the upper surface of the drill bit body (3), a sliding plate (8) is arranged inside the sliding groove, a fixing hole is formed in the upper surface of the sliding plate (8), fixing bolts (9) are arranged inside the fixing hole, and cutting teeth (10) are arranged on the lower surface of the drill bit body (3).

2. Drill bit for oil drilling according to claim 1, characterized in that the limit bolt (7) is screwed to the drill bit body (3).

3. Drill bit for oil drilling according to claim 1, characterized in that the slide (8) is in sliding engagement with the bit body (3).

4. Drill bit for oil drilling according to claim 1, characterized in that the fixing bolt (9) is screwed to the slide plate (8).

5. Drill bit for oil drilling according to claim 1, characterised in that the size of the openings (4) is adapted to the connecting piece (2).

6. Drill bit for oil drilling according to claim 1, characterized in that the slide (8) is dimensioned to fit the opening (4).

7. Drill bit for oil drilling according to claim 1, characterized in that the lower surface of the bit body (3) is screwed with a pilot bit (11).

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