CN216130872U

CN216130872U - Long-life high-efficiency diamond bit for petroleum well wall coring

Info

Publication number: CN216130872U
Application number: CN202122746628.4U
Authority: CN
Inventors: 赵文
Original assignee: Beijing Tianrui Yongtai Technology Development Co ltd
Current assignee: Beijing Tianrui Yongtai Technology Development Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-03-25
Anticipated expiration: 2031-11-11

Abstract

The utility model discloses a long-life high-efficiency diamond bit for coring from a petroleum well wall, which comprises a support body, a matrix, a bulge, a gauge block, an inner water tank and an outer water tank, wherein a first lug, a second lug and a third lug are arranged in the matrix. The utility model belongs to the technical field of petroleum well drilling tools, and particularly relates to a long-life high-efficiency diamond drill bit for coring on a petroleum well wall, which has the advantages of improving the degree of regularity of a core to be drilled and the well diameter, improving the capability of breaking rocks by using single diamond particles, avoiding the problems of hole diameter change, drill sticking, unstable work and drill sticking, effectively ensuring the quality of coring operation, effectively prolonging the service life of the drill bit and having low manufacturing cost.

Description

Long-life high-efficiency diamond bit for petroleum well wall coring

Technical Field

The utility model belongs to the technical field of petroleum well drilling tools, and particularly relates to a long-life high-efficiency diamond bit for petroleum well wall coring.

Background

In the process of drilling oil exploration wells, a large number of coring bits are used for cutting cores for analysis and research so as to make development schemes, calculate oil field reserves, make production increasing measures and the like. In recent years, with the continuous development of manufacturing technology of diamond bits, diamond core bits have been widely used for drilling at home and abroad. At present, the main existing problem of diamond coring bit, current coring bit easily take place the sticking in irregular hole footpath, lead to the tripping operation number of times more, creep into the cost higher, and current drill bit is connected with the upper part of the body through helicitic texture, creeps into the in-process, easily takes place to connect and relaxs, breaks away from even, and the diamond distributes inhomogeneously, appears the phenomenon of matrix kerve easily, influences the drilling efficiency of drill bit.

SUMMERY OF THE UTILITY MODEL

Aiming at the situation and overcoming the defects of the prior art, the utility model provides the long-life high-efficiency diamond drill bit for coring of the petroleum well wall, which improves the rule degree of the core to be cored and the well diameter, improves the capability of breaking rocks by single diamond particles, avoids the problems of aperture change, drill jamming, unstable work and drill jamming, effectively ensures the quality of coring operation, effectively prolongs the service life of the drill bit and has the advantage of low manufacturing cost.

The technical scheme adopted by the utility model is as follows: the utility model provides an oil side of a well core is with long-life high efficiency diamond bit, includes supporter, matrix, arch, guarantor's footpath piece, interior basin and outer basin, the supporter lower part is located through the welding to the matrix, forms the welding layer, the supporter diapire is located to the arch, the matrix lateral wall is located to the guarantor's footpath piece, supporter and matrix intermediate position are located to the interior basin, the supporter lateral wall is located to outer basin, be equipped with lug one, lug two and lug three in the matrix.

Furthermore, the first bump, the second bump and the third bump are different in grain size, so that the situation that the drill bit is unstable in work due to the fact that the diamond is single in grain size can be prevented.

Furthermore, the first lug, the second lug and the third lug are arranged in a circular and uniform interval manner, so that the difference of internal and external abrasion of the tire body is prevented, the abnormal abrasion phenomenon that the top end of the tire body is deformed into a circular arc shape or a conical shape is reduced, and the problems of aperture change and drill jamming caused by abnormal abrasion are solved.

Furthermore, the bulges are arranged in an arc shape, so that the contact area between the support body and the tire body can be enlarged, a larger binding force is obtained, the drill jamming is avoided, and the drill tripping times are reduced.

Furthermore, the bulges are arranged at equal intervals, so that the contact area between the support body and the tire body can be enlarged.

Furthermore, the first bump, the second bump and the third bump are made of diamond materials.

After adopting the structure, the utility model has the following beneficial effects: according to the long-life high-efficiency diamond drill bit for coring of the petroleum well wall, the degree of regularity of a core to be cored and the well diameter can be improved through the arrangement of the gauge blocks, the occurrence of drill jamming is avoided, the capability of breaking rocks by single diamond particles is improved, the problems of aperture change, drill jamming and unstable work are solved, the work efficiency is improved, the quality of coring operation is effectively guaranteed, the service life of the drill bit is effectively prolonged, and the manufacturing cost is low.

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 view of a long-life high-efficiency diamond drill bit structure for oil well side-wall coring according to the present invention;

FIG. 2 is a schematic view of the bottom structure of a matrix of a long-life and high-efficiency diamond drill bit for oil sidewall coring according to the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 1.

In the drawings: 1. the tire comprises a support body, 2, a tire body, 3, a protrusion, 4, a gauge block, 5, an inner water tank, 6, an outer water tank, 7, a welding layer, 8, a first bump, 9, a second bump, 10 and a third bump.

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.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in figures 1-3, the diamond bit for coring from the well wall has long service life and high efficiency and comprises a support body 1, a matrix 2, a bulge 3, a gauge block 4, an inner water tank 5 and an outer water tank 6.

Preferably, in order to improve the working efficiency and prolong the service life of the drill bit, the matrix 2 is arranged on the lower part of the support body 1 through welding to form a welding layer 7, the bottom wall of the support body 1 is provided with a protrusion 3, the side wall of the matrix 2 is provided with a gauge block 4, an inner water tank 5 is arranged between the support body 1 and the matrix 2, the outer side wall of the support body 1 is provided with an outer water tank 6, and the matrix 2 is internally provided with a first projection 8, a second projection 9 and a third projection 10.

Preferably, in order to prevent the unstable operation of the drill bit caused by the single diamond particle size, the first bump 8, the second bump 9 and the third bump 10 have different particle sizes.

Preferably, in order to prevent the difference of the internal abrasion and the external abrasion of the tire body 2, avoid the abnormal abrasion phenomenon that the top end of the tire body 2 deforms into a circular arc shape or a conical shape, and overcome the problems of aperture change and drill clamping caused by abnormal abrasion, the first lug 8, the second lug 9 and the third lug 10 are arranged in a circular and uniform interval manner.

Preferably, in order to enlarge the contact area between the support body 1 and the tire body 2 and obtain larger binding force, drill jamming is avoided, and the drilling times are reduced, the protrusions 3 are arranged in an arc shape, and the protrusions 3 are arranged at equal intervals.

When the anti-jamming drilling tool is used specifically, the anti-jamming drilling tool is not prone to jamming due to the fact that the anti-jamming block 4 has the anti-jamming effect of the rock core and the outer well diameter, the support body 1 and the tire body 2 can be welded to prevent connection looseness and even separation in the drilling process as far as possible, the first lug 8, the second lug 9 and the third lug 10 are arranged in a circular and uniform interval mode, the difference in internal and external wear of the tire body 2 can be prevented, the phenomenon that the top end of the tire body 2 is deformed into a circular arc shape or a conical abnormal wear is reduced, and the problems of aperture change and jamming caused by abnormal wear are solved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides an oil side of a well coring is with long-life high efficiency diamond bit which characterized in that: including supporter, matrix, arch, guarantor footpath piece, interior basin and outer basin, the supporter lower part is located through the welding to the matrix, forms the welding layer, the supporter diapire is located to the arch, the matrix lateral wall is located to the guarantor footpath piece, supporter and matrix intermediate position are located to interior basin, the supporter lateral wall is located to the outer basin, be equipped with lug one, lug two and lug three in the matrix.

2. The long life high efficiency diamond drill bit for oil sidewall coring as set forth in claim 1, wherein: the first bump, the second bump and the third bump are made of diamond materials.

3. The long life high efficiency diamond drill bit for oil sidewall coring as set forth in claim 2, wherein: the first projection, the second projection and the third projection are arranged in a circular shape at uniform intervals.

4. The long life high efficiency diamond drill bit for oil sidewall coring as set forth in claim 3, wherein: the bulges are arranged in an arc shape.

5. The long life and high efficiency diamond bit for oil sidewall coring as set forth in claim 4, wherein: the bulges are arranged at equal intervals.

6. The long life and high efficiency diamond bit for oil sidewall coring as set forth in claim 4, wherein: the first bump, the second bump and the third bump are different in grain size.