CN216767304U - Well drilling abrasionproof instrument - Google Patents
Well drilling abrasionproof instrument Download PDFInfo
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- CN216767304U CN216767304U CN202220445407.5U CN202220445407U CN216767304U CN 216767304 U CN216767304 U CN 216767304U CN 202220445407 U CN202220445407 U CN 202220445407U CN 216767304 U CN216767304 U CN 216767304U
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- drill bit
- outer sleeve
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Abstract
The utility model discloses a well drilling anti-abrasion tool which comprises a drill stem, wherein the upper end of the drill stem is connected with a drill bit, the outer surface of the drill stem is sleeved with a column sleeve, the outer surface of the column sleeve is sleeved with an anti-abrasion outer sleeve, the outer surface of the drill bit is provided with a plurality of bulges, the outer surface of each bulge is provided with a plurality of drill grains, and the upper end of the drill bit is connected with a plurality of diamond drill bits. The anti-abrasion assembly is simple in structure, clear and understandable in structure, convenient to install the drill bit and convenient to maintain and replace, the column sleeve on the outer surface of the drill column is static relative to the drill column, the anti-abrasion effect is achieved through rotating and installing, the anti-abrasion outer sleeve can further reduce the friction coefficient of the outer sleeve body and the column sleeve, the column sleeve can be protected, the service life of the whole anti-abrasion assembly is prolonged, the practicability is high, and the anti-abrasion assembly is worthy of popularization and use.
Description
Technical Field
The utility model relates to the technical field of drilling, in particular to a drilling anti-abrasion tool.
Background
During drilling of extended reach wells and deep wells with dog leg degrees exceeding the standard, the drill string will bear large frictional resistance. The torque exceeds the bearing capacity of a drill string, so that the drilling tool is broken and fails, the drilling cannot be carried out, meanwhile, the rotary drill string and a casing pipe of the lower well wall are in contact friction, the casing pipe and the drill string are directly abraded due to the contact friction, the casing pipe is extremely easy to crush and break prematurely under complex geological conditions, the service life of an oil well is seriously affected, and oil and gas exploitation is seriously affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a well drilling wear-resistant tool.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a well drilling abrasionproof instrument, includes the drilling string, the drilling string upper end is connected with the drill bit, drilling string surface cover is equipped with the column jacket, column jacket surface cover is equipped with the abrasionproof overcoat, the drill bit surface is provided with a plurality of archs, bellied surface is provided with a plurality of brill lines, the drill bit upper end is connected with a plurality of buddha's warrior attendant drill bits.
Furthermore, a connecting column is connected to the upper end of the drill column, a connecting groove is formed in the upper end face of the drill bit, the upper end of the connecting column is fixedly connected in the connecting groove through a bolt, a connecting hole is formed in the upper end face of the connecting column, and the connecting hole is rotatably connected with the bolt through threads.
Furthermore, the column sleeve is rotatably sleeved on the outer surface of the drill column through a plurality of bearings, and a plurality of rotary seals are arranged between the column sleeve and the outer surface of the drill column.
Further, the abrasionproof overcoat includes the overcoat body, the both ends of overcoat body are provided with the overcoat slips respectively, the internal surface of overcoat slips is provided with the alloy coating, the surface of overcoat body is inlayed and is had the rubber protective shroud.
Furthermore, the outer diameter of the rubber retainer ring is larger than the outer diameters of the outer sleeve slip and the outer sleeve body, and the rubber retainer ring is a polyester retainer ring.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model is a well drilling wear-resistant tool, including drill stem and bit connected to it, wherein the drill stem is fitted with the column jacket on the external surface, the column jacket is fitted with the wear-resistant overcoat on the external surface, the wear-resistant effect is good, in addition, the surface of the bit has drilling pattern and diamond bit, the well drilling effect is good, the external diameter of the bit is greater than the diameter of the drill stem, in the course of drilling, when the drill stem and bit connected to it rotate, through the bearing, the column jacket is relatively static, make the drilling tool friction coefficient reduce to the lowest, improve service life;
2. in the process of drilling, when the outer sleeve body is contacted with the inner wall of the drilling well, the polyester guard ring on the outer sleeve body is firstly contacted with the inner wall of the drilling well, and is directly contacted with the inner wall of the drilling well relative to the metal outer sleeve, so that the effect of protecting the column sleeve is greatly played, and the advantage of the polyester material in the aspect of wear resistance is exerted;
3. in addition, the hard alloy coating on the inner wall of the jacket body is in contact with the outer surface of the column jacket, so that the wear resistance is improved, the service life of the column jacket is prolonged, the friction coefficient of the jacket body and the column jacket is reduced, and the effects of good wear resistance and low friction coefficient of the hard alloy material are exerted.
In conclusion, the anti-abrasion assembly is simple in structure, clear and understandable in structure, convenient to install drill bits and convenient to maintain and replace, the column sleeve on the outer surface of the drill column is static relative to the drill column, the anti-abrasion effect is achieved through rotating installation, the anti-abrasion outer sleeve can further reduce the friction coefficient of the outer sleeve body and the column sleeve and can protect the column sleeve, the service life of the whole anti-abrasion assembly is prolonged, the practicability is high, and the anti-abrasion assembly is worthy of popularization and use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.
Fig. 1 is a schematic perspective view of a well drilling wear-resistant tool according to the present invention;
FIG. 2 is a schematic view of a drill bit and drill string connection of a drilling anti-wear tool according to the present invention;
fig. 3 is a schematic sectional view of a drilling wear-resistant tool according to the present invention.
In the figure: 1-drill string, 2-column sleeve, 3-anti-wear outer sleeve, 4-drill bit, 5-drill grain, 6-bulge, 7-diamond drill bit, 8-connecting groove, 9-connecting column, 10-bolt, 11-connecting hole, 12-bearing, 13-rotary seal, 14-outer sleeve slip, 15-outer sleeve body and 16-alloy coating.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to 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. 1-3, a well drilling anti-abrasion tool comprises a drill string 1, wherein a drill bit 4 is connected to the upper end of the drill string 1, a column sleeve 2 is sleeved on the outer surface of the drill string 1, an anti-abrasion outer sleeve 3 is sleeved on the outer surface of the column sleeve 2, a plurality of protrusions 6 are arranged on the outer surface of the drill bit 4, a plurality of drill grains 5 are arranged on the outer surface of each protrusion 6, and a plurality of diamond drill bits 7 are connected to the upper end of each drill bit 4.
The utility model relates to a well drilling anti-abrasion tool, which comprises a drill stem 1 and a drill bit 4 connected with the drill stem 1, wherein the outer surface of the drill stem 1 is sleeved with a column sleeve 2, the outer surface of the column sleeve 2 is sleeved with an anti-abrasion outer sleeve 3, the anti-abrasion effect is good, in addition, the surface of the drill bit 4 is provided with drill grains 5 and a diamond drill bit 7, the well drilling effect is good, and the outer diameter of the drill bit 4 is larger than the diameter of the drill stem 1.
The drill bit is characterized in that the upper end of the drill string 1 is connected with a connecting column 9, the upper end face of the drill bit 4 is provided with a connecting groove 8, the upper end of the connecting column 9 is fixedly connected in the connecting groove 8 through a bolt 10, the upper end face of the connecting column 9 is provided with a connecting hole 11, and the connecting hole 11 is rotatably connected with the bolt 10 through threads.
The upper end of the drill string 1 is integrally connected with the connecting column 9, the connecting column 9 is connected with the drill bit 4 through the threads 10, the disassembly and the assembly are convenient, the maintenance and the replacement are convenient, and the practicability is high.
The column sleeve 2 is rotatably sleeved on the outer surface of the drill string 1 through a plurality of bearings 12, and a plurality of rotary seals 13 are arranged between the column sleeve 2 and the outer surface of the drill string 1.
In the drilling process, when the drill string 1 and the drill bit 4 connected with the drill string rotate, the column sleeve 2 is relatively static through the bearing 12, so that the friction coefficient of a drilling tool is reduced to the minimum, and the service life is prolonged.
In the process of drilling, when the outer sleeve body 15 is in contact with the inner wall of the drilling well, the polyester guard ring on the outer sleeve body 15 is firstly in contact with the inner wall of the drilling well, and is directly in contact with the inner wall of the drilling well relative to the metal outer sleeve, so that the effect of protecting the column sleeve is greatly played, and the advantage of the polyester material in the aspect of wear resistance is exerted;
in addition, the hard alloy coating 16 on the inner wall of the outer sleeve body 15 is in contact with the outer surface of the column sleeve 2, so that the wear resistance is increased, the service life of the column sleeve 2 is prolonged, and the friction coefficient of the outer sleeve body 15 and the column sleeve 2 is reduced. The effects of good wear resistance and low friction coefficient of the hard alloy material are exerted.
The working principle and the using process of the utility model are as follows: the utility model is a well drilling anti-abrasion tool, including the drill string 1 and drill bit 4 connected with it, wherein the outer surface of the drill string 1 is fitted with the column jacket 2, the outer surface of the column jacket 2 is fitted with the anti-abrasion overcoat 3, the anti-abrasion is effectual, in addition, the surface of the drill bit 4 has drill grain 5 and diamond bit 7, the well drilling is effectual, the external diameter of the drill bit 4 is greater than the diameter of the drill string 1;
in the drilling process, when the drill string 1 and the drill bit 4 connected with the drill string rotate, the column sleeve 2 is relatively static through the bearing 12, so that the friction coefficient of a drilling tool is reduced to the minimum, and the service life is prolonged;
in the process of drilling, when the outer sleeve body 15 is in contact with the inner wall of the drilling well, the polyester guard ring on the outer sleeve body 15 is firstly in contact with the inner wall of the drilling well, and is directly in contact with the inner wall of the drilling well relative to the metal outer sleeve, so that the effect of protecting the column sleeve is greatly played, and the advantage of the polyester material in the aspect of wear resistance is exerted;
in addition, the hard alloy coating 16 on the inner wall of the outer sleeve body 15 is in contact with the outer surface of the column sleeve 2, so that the wear resistance is improved, the service life of the column sleeve 2 is prolonged, the friction coefficient of the outer sleeve body 15 and the column sleeve 2 is reduced, and the effects of good wear resistance and low friction coefficient of a hard alloy material are exerted.
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 (5)
1. The utility model provides a well drilling abrasionproof instrument, includes drilling string (1), its characterized in that, drilling string (1) upper end is connected with drill bit (4), drilling string (1) surface cover is equipped with column jacket (2), column jacket (2) surface cover is equipped with abrasionproof overcoat (3), drill bit (4) surface is provided with a plurality of archs (6), the surface of arch (6) is provided with a plurality of brill line (5), drill bit (4) upper end is connected with a plurality of buddha's warrior attendant drill bits (7).
2. A drilling wear prevention tool according to claim 1, characterized in that a connection column (9) is connected to the upper end of the drill string (1), the upper end surface of the drill bit (4) is provided with a connection groove (8), the upper end of the connection column (9) is fixedly connected in the connection groove (8) by a bolt (10), the upper end surface of the connection column (9) is provided with a connection hole (11), and the connection hole (11) and the bolt (10) are rotatably connected by a thread.
3. A drilling wear tool according to claim 2, characterized in that the sleeve (2) is rotatably mounted around the outer surface of the drill string (1) by means of bearings (12), and that rotary seals (13) are provided between the sleeve (2) and the outer surface of the drill string (1).
4. A well wear prevention tool according to claim 3, characterized in that the wear prevention outer sleeve (3) comprises an outer sleeve body (15), wherein outer sleeve slips (14) are respectively arranged at two ends of the outer sleeve body (15), the inner surface of each outer sleeve slip (14) is provided with an alloy coating (16), and the outer surface of the outer sleeve body (15) is embedded with a rubber retainer.
5. A well wear tool according to claim 4, in which the rubber retainer has an outer diameter greater than the outer diameter of the outer slip (14) and outer sleeve body (15), the rubber retainer being a polyester retainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220445407.5U CN216767304U (en) | 2022-03-02 | 2022-03-02 | Well drilling abrasionproof instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220445407.5U CN216767304U (en) | 2022-03-02 | 2022-03-02 | Well drilling abrasionproof instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216767304U true CN216767304U (en) | 2022-06-17 |
Family
ID=81958640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220445407.5U Active CN216767304U (en) | 2022-03-02 | 2022-03-02 | Well drilling abrasionproof instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216767304U (en) |
-
2022
- 2022-03-02 CN CN202220445407.5U patent/CN216767304U/en active Active
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