CN221096413U - Five-blade quick PDC drill bit with high stability - Google Patents
Five-blade quick PDC drill bit with high stability Download PDFInfo
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- CN221096413U CN221096413U CN202322689592.XU CN202322689592U CN221096413U CN 221096413 U CN221096413 U CN 221096413U CN 202322689592 U CN202322689592 U CN 202322689592U CN 221096413 U CN221096413 U CN 221096413U
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- drill bit
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- teeth
- wing
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- 230000036346 tooth eruption Effects 0.000 claims abstract description 37
- 238000005520 cutting process Methods 0.000 claims description 25
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 14
- 238000004140 cleaning Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a high-stability five-blade quick PDC drill bit which comprises a drill bit body, and a first blade, a gage blade, a second blade, a third blade and a fourth blade which are arranged on the drill bit body, wherein the distribution angles of the first blade, the gage blade, the second blade, the third blade and the fourth blade in the circumferential direction of the drill bit body are respectively 0 degree, 55 degree, 113 degree, 184 degree and 263 degree; the first blade, the second blade, the third blade and the fourth blade are all provided with a plurality of cutting teeth. According to the high-stability five-blade quick PDC drill bit, the distribution angles of the five blades arranged on the drill bit body can improve the stability of the drill bit in the drilling process; and the gauge protection blades in the five blades are not provided with cutting teeth for gauge protection during the drilling process.
Description
Technical Field
The utility model relates to the technical field of drill bits, in particular to a high-stability five-blade quick PDC drill bit.
Background
Currently, in marine drilling, directional and horizontal drilling is often required due to the influence of geological conditions. In order to increase the oil layer crossing area, improve the yield and recovery ratio, the PDC drill bit has higher requirements on the stability. The PDC drill bit in the prior art, the arrangement of the distribution angle of the blades and the distribution of the cutting teeth on the blades is focused on the aggressiveness of the drill bit, the tool face is unstable in the high continuous drilling process, and the drilling track is difficult to control, so that the drilling operation is influenced.
Disclosure of utility model
In order to overcome the defects of the prior art, the utility model aims to provide the high-stability five-blade quick PDC drill bit, and the distribution angles of the five blades arranged on the drill bit body can improve the stability of the drill bit in the drilling process; and the gauge protection blades in the five blades are not provided with cutting teeth for gauge protection during the drilling process.
The utility model adopts the following technical scheme:
The utility model provides a quick PDC drill bit of five wings of high stability, includes the drill bit body and sets up first wing, gauge protection wing, second wing, third wing and fourth wing on the drill bit body, first wing, gauge protection wing second wing third wing and fourth wing are in the circumferencial direction interval distribution of drill bit body, just first wing, gauge protection wing second wing third wing and fourth wing are 0, 55, 113, 184, 263 respectively in the circumferencial direction of drill bit body the distribution angle; the first blade, the second blade, the third blade and the fourth blade are all provided with a plurality of cutting teeth.
Further, the sections of the first blade, the second blade, the third blade and the fourth blade in the axial direction of the drill body are divided into an inner cone portion, an outer shoulder portion, a diameter-cutting portion and a diameter-retaining portion;
two cutting teeth are arranged on the inner cone part of the first blade, two cutting teeth are arranged on the outer shoulder part of the first blade, and one cutting tooth is arranged on the cutting diameter part of the first blade;
three cutting teeth are arranged on the outer shoulder part of the second blade;
Two cutting teeth are arranged on the inner cone part of the third blade, and two cutting teeth are arranged on the outer shoulder part of the third blade;
Three cutting teeth are arranged on the outer shoulder part of the fourth blade;
The gage blades are distributed between gage portions of the first blade and the second blade.
Further, the gauge protection parts of the first blade, the second blade, the third blade and the fourth blade are all provided with a plurality of gauge protection teeth.
Further, three gauge teeth are arranged on the gauge part of the first blade; three gauge teeth are arranged on the gauge part of the second blade; three gauge teeth are arranged on the gauge part of the third blade; and two gauge teeth are arranged on the gauge part of the fourth blade.
Further, the bottom ends of the first blade, the gauge protection blade, the second blade, the third blade and the fourth blade are all provided with a plurality of inverted eye-scribing teeth.
Further, the drill bit body is provided with a plurality of flushing nozzles.
Compared with the prior art, the utility model has the beneficial effects that:
The first blade and the gauge protection blade on the drill bit body are distributed at an angle of 55 degrees, the gauge protection blade and the second blade are distributed at an angle of 58 degrees, the angle difference between the first blade and the third blade for cutting is 113 degrees, and the setting of the gauge protection blade can enable a large chip removal space to be formed between the first blade and the second blade, so that slurry can be discharged rapidly in the cutting process, meanwhile, the radial direction of the drill bit body can play a supporting role, and the stability in use of the drill bit is improved. In addition, the angle difference between the fourth blade and the first blade is 97 degrees, the distribution angles of the second blade and the third blade are different by 71 degrees, the distribution angles of the third blade and the fourth blade are different by 79 degrees, so that the distribution angle difference among the first blade, the second blade, the third blade and the fourth blade in the circumferential direction of the drill bit body is larger than 70 degrees, and a larger chip removal space can be formed between the blades and the blades, thereby facilitating the rapid discharge of slurry.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of another view angle structure of the present utility model;
Fig. 3 is a cross-sectional view of a bit body of the present utility model.
In the figure: 10. a bit body; 11. a nozzle; 21. a first blade; 22. a second blade; 23. a third blade; 24. a fourth blade; 30. a gauge protection blade; 40. cutting teeth; 50. gauge teeth; 61. an inner cone; 62. an outer shoulder; 63. a diameter cutting part; 64. and a gauge portion.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and detailed description below:
In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
The high-stability five-blade quick PDC drill bit shown in fig. 1, 2 and 3 comprises a drill bit body 10, a first blade 21, a gauge cutter 30, a second blade 22, a third blade 23 and a fourth blade 24, wherein the first blade 21, the gauge cutter 30, the second blade 22, the third blade 23 and the fourth blade 24 are arranged on the drill bit body 10 at intervals in the circumferential direction of the drill bit body 10, and the distribution angles of the first blade 21, the gauge cutter 30, the second blade 22, the third blade 23 and the fourth blade 24 in the circumferential direction of the drill bit body 10 are 0 DEG, 55 DEG, 113 DEG, 184 DEG and 263 DEG respectively. Specifically, the first blade 21, the second blade 22, the third blade 23, and the fourth blade 24 are all provided with a plurality of cutting teeth 40, and the gage blade 30 is not provided with cutting teeth 40.
On the basis of the above structure, six blades can be arranged on the drill bit body 10, five blades are arranged in 360-degree circumference, and as the distribution angles of the first blade 21, the gauge protection blade 30, the second blade 22, the third blade 23 and the fourth blade 24 in the circumferential direction of the drill bit body 10 are respectively 0 DEG, 55 DEG, 113 DEG, 184 DEG and 263 DEG, the distribution angles of the first blade 21 and the gauge protection blade 30 on the drill bit body 10 are different by 55 DEG, the distribution angles of the gauge protection blade 30 and the second blade 22 are different by 58 DEG, and the angle difference between the first blade 21 and the third blade 23 for cutting is 113 DEG, namely, the setting of the gauge protection blade 30 can enable a large chip removal space to be formed between the first blade 21 and the second blade 22, so that the slurry can be discharged quickly in the cutting process, and meanwhile, the radial direction of the drill bit body 10 can play a supporting role, and the stability of the drill bit is improved. In addition, the angle difference between the fourth blade 24 and the first blade 21 is 97 °, the distribution angles of the second blade 22 and the third blade 23 are different by 71 °, and the distribution angles of the third blade 23 and the fourth blade 24 are different by 79 °, so that the distribution angle differences of the first blade 21, the second blade 22, the third blade 23 and the fourth blade 24 in the circumferential direction of the drill bit body 10 are all greater than 70 °, and a large chip removing space can be formed between the blades, thereby facilitating the rapid discharge of mud.
The drill bit is characterized in that the blades are arranged at the angles, so that the mud, rock fragments and the like can be discharged rapidly, the cutting speed of the stratum is facilitated, and the working efficiency of the drill bit is improved.
In the drilling process of the drill bit, the gauge protection blades 30 are matched with the first blade 21, the second blade 22, the third blade 23 and the fourth blade 24 to be distributed at intervals in the circumferential direction, meanwhile, the angle distribution difference between two adjacent blades in the circumferential direction can be shortened, the bearing capacity of each blade in the drilling process of the drill bit is relatively balanced, and the stress is uniform when the drill bit drills into a stratum, so that the drill bit is more stable.
Further, the cross sections of the first, second, third and fourth blades 21, 23, 24 in the axial direction of the bit body 10 are divided into an inner cone 61, an outer shoulder 62, a diameter-cutting portion 63 and a diameter-retaining portion 64 (see fig. 3).
Specifically, the inner cone 61 of the first blade 21 is provided with two cutting teeth 40, the outer shoulder 62 of the first blade 21 is provided with two cutting teeth 40, and the diameter cutting portion 63 of the first blade 21 is provided with one cutting tooth 40. While the outer shoulder 62 of the second blade 22 is provided with three cutting teeth 40, i.e., neither the inner taper 61 nor the diameter-cutting 63 of the second blade 22 is provided with cutting teeth 40. The inner taper portion 61 of the third blade 23 is provided with two cutting teeth 40, and the outer shoulder portion 62 of the third blade 23 is provided with two cutting teeth 40, that is, the cutting diameter portion 63 of the third blade 23 is not provided with the cutting teeth 40. Finally, the outer shoulder 62 of the fourth blade 24 is provided with three cutting teeth 40, i.e., neither the inner taper 61 nor the diameter-cutting 63 of the second blade 22 is provided with cutting teeth 40.
In addition, the gauge protection blades 30 are distributed between the gauge protection portions 64 of the first blade 21 and the second blade 22, so that the gauge protection blades 30 are not provided with the cutting teeth 40, and the gauge protection blades 30 are located between the gauge protection portions 64 of the first blade 21 and the second blade 22, so that the gauge protection function can be achieved, and the gauge protection blades 30 serving as the gauge protection blades 30 can cooperate with the gauge protection portions 64 of the first blade 21, the second blade 22, the third blade 23 and the fourth blade 24 during the drill bit driving process, so that the gauge protection support function is achieved, and the drill bit use stability is improved.
Since the distribution angles of the first blade 21, the gage blade 30, the second blade 22, the third blade 23, and the fourth blade 24 in the circumferential direction of the bit body 10 are 0 °, 55 °, 113 °, 184 °, 263 °, respectively, the blades disposed at such angles ensure that more cutting teeth 40 can be distributed on the bit body 10, and that the cutting teeth 40 on the respective blades are distributed densely and densely.
Specifically, two cutting teeth 40 are disposed on the inner cone 61 of the first blade 21 and the third blade 23, and the inner cone 61 of the second blade 22 and the fourth blade 24 are not disposed to the cutting teeth 40, so that a blade distribution structure with long and short intervals can be formed. In the rotation process, the first blade 21, the second blade 22, the third blade 23 and the fourth blade 24 are all continuously spaced, that is, the cutting teeth 40 on the inner cone 61 of the first blade 21 and the third blade 23 continuously act in the rotation direction.
In addition, since the outer shoulder 62 of each blade is located at the junction of the end face and the side face of the bit body 10, a stronger cutting force is required when the bit drills, at least one cutting tooth 40 is distributed on each of the first, second, third and fourth blades 21, 22, 23 and 24, and the outer shoulder cutting force is maintained. While the diameter-cut portion 63 at the side of the bit body 10 is distributed with at least one cutting tooth 40, so that stable cutting penetration performance can be maintained in the radial direction.
The cutting teeth 40 are distributed in the number, so that the density distribution is proper, the cutting force can be improved, and the cutting stability can be maintained.
Further, the gauge parts 64 of the first blade 21, the second blade 22, the third blade 23 and the fourth blade 24 are provided with a plurality of gauge teeth 50, and the gauge surfaces formed by the gauge teeth are larger and have long gauge length in cooperation with the effect of the gauge blades 30, so that the support of the contact well wall is more, the stability is high, and the strength of the blades in the use process of the drill bit can be maintained.
Further, the bottom ends of the first blade 21, the gauge protection blade 30, the second blade 22, the third blade 23 and the fourth blade 24 are all provided with a plurality of inverted eye teeth, the inverted eye teeth arranged at the bottom ends of the respective blades can play a role in trimming the well wall in the drilling process, and the inverted eye teeth can also play a role in cutting in the drilling process so as to eliminate necking and other phenomena, so that the drilling process is smooth.
More specifically, in this embodiment, three gauge teeth 50 may be provided on the gauge portion 64 of the first blade 21, three gauge teeth 50 may be provided on the gauge portion 64 of the second blade 22, and three gauge teeth 50 may be provided on the gauge portion 64 of the third blade 23; the gauge portion 64 of the fourth blade 24 is provided with two gauge teeth 50, so that the three gauge teeth 50 of the first blade 21, the gauge teeth 50 of the second blade 30, the three gauge teeth 50 of the third blade 23, and the two gauge teeth 50 of the fourth blade can form a relatively balanced gauge support force in the circumferential direction of the bit body 10, and the gauge structure is more stable.
Further, a plurality of flushing nozzles 11 are provided on the bit body 10. Specifically, on the drill bit body 10, the nozzles 11 are arranged between two adjacent blades, when in use, the nozzles 11 can be communicated with an external cleaning pipeline, and cleaning water can be sprayed through the nozzles 11 in the drilling process, so that the effect of cleaning rock debris can be enhanced, and the phenomenon of bit balling can be effectively prevented.
It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the utility model as defined in the appended claims.
Claims (6)
1. The utility model provides a quick PDC drill bit of five wings of high stability, its characterized in that includes the drill bit body and sets up first wing, gage sword, second wing, third wing and fourth wing on the drill bit body, first wing, gage sword, second wing, third wing and fourth wing are in the circumferencial direction interval distribution of drill bit body, just first wing, gage sword, second wing, third wing and the distribution angle of fourth wing in the circumferencial direction of drill bit body is 0, 55, 113, 184, 263 respectively; the first blade, the second blade, the third blade and the fourth blade are all provided with a plurality of cutting teeth.
2. The high stability five-bladed rapid PDC bit of claim 1 wherein the cross-sections of the first, second, third, and fourth blades in the axial direction of the bit body are divided into an inner cone, an outer shoulder, a gage, and a gage;
two cutting teeth are arranged on the inner cone part of the first blade, two cutting teeth are arranged on the outer shoulder part of the first blade, and one cutting tooth is arranged on the cutting diameter part of the first blade;
three cutting teeth are arranged on the outer shoulder part of the second blade;
Two cutting teeth are arranged on the inner cone part of the third blade, and two cutting teeth are arranged on the outer shoulder part of the third blade;
Three cutting teeth are arranged on the outer shoulder part of the fourth blade;
The gage blades are distributed between gage portions of the first blade and the second blade.
3. The high stability five-blade fast PDC drill bit of claim 2, wherein the gage portions of the first blade, the second blade, the third blade, and the fourth blade are each provided with a plurality of gage teeth.
4. The high stability five-blade rapid PDC drill bit of claim 3 wherein three of the gage teeth are provided on the gage portion of the first blade; three gauge teeth are arranged on the gauge part of the second blade; three gauge teeth are arranged on the gauge part of the third blade; and two gauge teeth are arranged on the gauge part of the fourth blade.
5. The high stability five-bladed rapid PDC bit of any of claims 1-4, wherein the bottom ends of the first, gauge protection, second, third, and fourth blades are each a plurality of inverted reaming teeth.
6. The high stability five-blade fast PDC bit of any of claims 1-4 wherein a plurality of flushing nozzles are provided on the bit body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322689592.XU CN221096413U (en) | 2023-10-08 | 2023-10-08 | Five-blade quick PDC drill bit with high stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322689592.XU CN221096413U (en) | 2023-10-08 | 2023-10-08 | Five-blade quick PDC drill bit with high stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221096413U true CN221096413U (en) | 2024-06-07 |
Family
ID=91317493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322689592.XU Active CN221096413U (en) | 2023-10-08 | 2023-10-08 | Five-blade quick PDC drill bit with high stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221096413U (en) |
-
2023
- 2023-10-08 CN CN202322689592.XU patent/CN221096413U/en active Active
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