CN220599736U - High-efficient chip removal drill bit - Google Patents
High-efficient chip removal drill bit Download PDFInfo
- Publication number
- CN220599736U CN220599736U CN202322373135.XU CN202322373135U CN220599736U CN 220599736 U CN220599736 U CN 220599736U CN 202322373135 U CN202322373135 U CN 202322373135U CN 220599736 U CN220599736 U CN 220599736U
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- Prior art keywords
- blades
- drill bit
- drill
- main
- chip
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Links
- 238000005553 drilling Methods 0.000 claims abstract description 22
- 230000036346 tooth eruption Effects 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 239000011435 rock Substances 0.000 abstract description 14
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a high-efficiency chip removal drill bit, which comprises: the drill bit comprises a drill bit main body, wherein a plurality of main blades and a plurality of auxiliary blades are fixedly arranged on the outer side wall of one end of the drill bit main body, the plurality of main blades and the plurality of auxiliary blades are arranged at intervals along the circumferential direction of the drill bit main body, a plurality of cutting teeth are uniformly distributed on the outer side wall of any main blade and any auxiliary blade, and chip grooves are formed between the adjacent blades; the tops of the main blades and the auxiliary blades are connected into a whole to divide the chip removing grooves into a plurality of areas which are not communicated with each other, and a nozzle is arranged in any chip removing groove and is communicated with drilling fluid. When the drill bit disclosed by the utility model works, broken rock scraps can be timely discharged from a drill bit chip groove under the assistance of the nozzle, and meanwhile, drilling fluid sprayed out of the nozzle is also used for cleaning cutting teeth, so that the surface of the drill bit is kept smooth, and the phenomenon of balling is avoided.
Description
Technical Field
The utility model relates to the technical field of drill bits. More particularly, the present utility model relates to a high efficiency chip removing drill bit.
Background
The PDC drill bit has simple structure, high mechanical drilling speed and long footage and is widely applied to petroleum exploitation. However, 60% -80% of shale stratum in petroleum drilling process is easy to be adhered to the surfaces of PDC drill bit and cutting teeth due to viscosity caused by hydration and expansion of shale cuttings, so that repeated cutting is caused when the drill bit cuts the stratum due to incapability of timely and circularly discharging the cuttings, and the cuttings are accumulated even mud and stuck drill are caused when serious; on one hand, the bit balling can lead to that the cutting teeth cannot directly contact with broken stratum, and meanwhile, the cutting teeth wrapped by rock scraps cannot be cooled in time, so that the local temperature of the cutting teeth composite layer is too high, the cutting failure is caused, the rock breaking efficiency is reduced, and the mechanical drilling speed is influenced; on the other hand, suction pressure can be generated during the tripping process, so that serious drilling accidents such as kick and blowout can be caused.
Disclosure of Invention
The utility model also aims to provide the high-efficiency chip removal drill bit which can remove chips in time, avoid the phenomena of balling and sticking and ensure construction safety.
To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a highly efficient chip removing drill, comprising:
the drill bit comprises a drill bit main body, wherein a plurality of main blades and a plurality of auxiliary blades are fixedly arranged on the outer side wall of one end of the drill bit main body, the plurality of main blades and the plurality of auxiliary blades are arranged at intervals along the circumferential direction of the drill bit main body, a plurality of cutting teeth are uniformly distributed on the outer side wall of any main blade and any auxiliary blade, and chip grooves are formed between the adjacent blades;
the tops of the main blades and the auxiliary blades are connected into a whole to divide the chip removing grooves into a plurality of areas which are not communicated with each other, and a nozzle is arranged in any chip removing groove and is communicated with drilling fluid.
Preferably, the outer side wall of any one of the main blades and any one of the auxiliary blades is also provided with a diversion trench, the diversion trench is arranged along the height direction of the drill bit main body, and the diversion trench is not contacted with the cutting teeth on the corresponding blade.
Preferably, the width of the diversion trench is between 5 and 20 mm.
Preferably, the widths of two adjacent diversion trenches are the same or different.
Preferably, the outer side walls of the bottoms of any one of the main blades and any one of the auxiliary blades are fixedly provided with gauge protection teeth.
Preferably, the other end of the drill bit body is fixedly connected with a connector, the connector is connected with a screw drilling tool or a rotary guiding device, and the screw drilling tool or the rotary guiding device is used for driving the drill bit body to rotate.
The utility model at least comprises the following beneficial effects: when the drill bit disclosed by the utility model is used for cutting a stratum, broken rock scraps are discharged from the chip removal groove, meanwhile, the nozzle is used for spraying drilling fluid to accelerate the discharge speed of the rock scraps from the chip removal groove, so that the rock scraps are timely discharged, the drilling fluid sprayed by the nozzle is also used for cleaning cutting teeth, the surface of the drill bit is kept smooth, and the balling phenomenon is avoided; the main blade and the auxiliary blade divide the chip removal groove into a plurality of small areas, and the nozzles in each area are used for independently and effectively cleaning the areas, so that turbulence between the nozzles is avoided, the water flow chip removal effect is improved, the phenomenon of rock debris accumulation is avoided, and the construction safety is ensured.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic elevational view of a high efficiency chip removing drill in accordance with the present utility model;
FIG. 2 is a schematic top view of the high efficiency chip removing drill of the present utility model;
FIG. 3 is a schematic diagram of the structure of the present utility model with different widths of the diversion trenches;
FIG. 4 is a schematic view of the flow guide groove with a gradually increasing cross section;
description of the specification reference numerals:
101. bit body 102, auxiliary blades 103, nozzles 104, cutting teeth 105, diversion trenches 106, junk slots 107, main blades 108, gage, 109, gage teeth 110, and connectors.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
It should be noted that, in the description of the present utility model, the terms "transverse", "longitudinal", "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 for convenience in describing the present utility model and simplifying 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.
As shown in fig. 1-4, the present utility model provides a high efficiency chip removing drill bit comprising:
the drill bit comprises a drill bit body 1, wherein a plurality of main blades 107 and a plurality of auxiliary blades 102 are fixedly arranged on the outer side wall of one end of the drill bit body, the plurality of main blades 107 and the plurality of auxiliary blades 102 are arranged at intervals along the circumferential direction of the drill bit body 1, a plurality of cutting teeth 104 are uniformly distributed on the outer side wall of any one of the main blades 107 and any one of the auxiliary blades 102, and chip grooves 106 are formed between the adjacent blades;
wherein, the tops of the main blades 107 and the auxiliary blades 102 are connected into a whole to divide the chip grooves 106 into a plurality of areas which are not communicated with each other, and a nozzle 103 is arranged in any chip groove 106, and the nozzle 103 is communicated with drilling fluid.
In the above technical solution, as shown in fig. 1 and fig. 2, a main blade 107 and an auxiliary blade 102 are provided on an outer sidewall of one end of a drill bit body 1, a plurality of cutting teeth 104 are embedded on the main blade 107 and the auxiliary blade 102, the cutting teeth 104 are diamond composite sheets, chip grooves 106 are provided between adjacent blades, the chip grooves 106 are used for providing chip removal flow channels for the drill bit, a nozzle 103 is provided in the chip grooves 106, a cavity is provided in the drill bit body 1, the cavity is communicated with the nozzle 103 and external drilling fluid, and the drilling fluid is ejected through the nozzle 103; when the drill bit works, the cutting teeth 104 are used for cutting rock, broken rock chips are discharged from the chip grooves 106, meanwhile, the nozzles 103 spray drilling fluid to accelerate the discharge speed of the rock chips from the chip grooves 106, so that the rock chips are discharged in time, and the drilling fluid sprayed by the nozzles 103 is also used for cleaning the cutting teeth 104, so that the surface of the drill bit is kept smooth, and the phenomenon of balling is avoided; the main blade 107 links to each other with the one end of vice blade 102 for drill bit junk slot 106 is divided into a plurality of little regions, and the nozzle 103 in every region is alone, effectively washs this region, has avoided the vortex between nozzle 103 and the nozzle 103, has improved rivers chip removal effect, avoids the detritus phenomenon of piling up, has guaranteed construction safety.
In another technical scheme, the outer side walls of any main blade 107 and any auxiliary blade 102 are further provided with guide grooves 105, the guide grooves 105 are formed along the height direction of the drill bit body 1, and the guide grooves 105 are not contacted with the cutting teeth 104 on the corresponding blades.
In the technical scheme, each main blade 107 and each auxiliary blade 102 are provided with the diversion trench 105, and rock fragments can be discharged from the diversion trench 105, so that the chip removal effect is improved, the diversion trench 105 is arranged close to the nozzle 103 on the corresponding side, and the drilling fluid sprayed out of the nozzle 103 can also clean the rock fragments in the diversion trench 105 to prevent the rock fragments from accumulating at the diversion trench 105 and causing blocking phenomenon; the guide grooves 105 on any blade can be provided in plurality, and the guide grooves 105 are arranged in parallel, so that the chip removal flow passage is further increased, and the chip removal effect is enhanced.
In another embodiment, the width of the diversion trench 105 is between 5 mm and 20 mm.
In the present technical solution, the width of the guide groove 105 is limited, and in this range, the guide effect of the guide groove can be ensured, and the influence on the embedding position of the cutting teeth due to the overlarge width of the guide groove can be avoided.
In another embodiment, the widths of two adjacent channels 105 are the same or different.
In the technical scheme, as shown in fig. 3, the width of the diversion trench 105 is in the range of 5-20 mm, the wider the width of the diversion trench 105 is, the better the chip removal effect is, and chip removal grooves 106 with proper width can be designed and formed on each blade according to actual working conditions; similarly, the chip removal effect can be improved by designing the flow guide grooves 105 with different shapes, and the flow guide grooves 105 can be designed into a structure with rectangular cross sections, as shown in fig. 4, or a structure with the cross sections gradually increasing from the top to the bottom of the drill bit so as to improve the chip removal effect.
In another technical scheme, gauge 108 is fixedly arranged on the outer side wall of the bottom of any main blade 107 and any auxiliary blade 102, and gauge teeth 109 are arranged on the gauge 108.
In this technical scheme, gauge teeth 109 are provided with a plurality of, and they are inlayed on the lateral wall of gauge 108 along gauge's direction of height interval, and gauge teeth 109 are used for the side cutting stratum, improve the cutting ability of drill bit.
In another technical scheme, the other end of the drill bit body 1 is fixedly connected with a connector 110, and the connector 110 is connected with a screw drilling tool or a rotary guiding device, and the screw drilling tool or the rotary guiding device is used for driving the drill bit body 1 to rotate.
In this technical scheme, connector 110 is cavity structure, and its inside and outside surface is equipped with internal thread and external screw thread respectively, is connected with the screw rod drilling tool through the internal screw thread, is connected with rotatory guider through the external screw thread, and screw rod drilling tool and rotatory guider all can be used to drive the drill bit rotation in order to cut the stratum, but rotatory guider cost is comparatively expensive, and use cost is higher, consequently, can select different drive arrangement according to the demand.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (6)
1. A high efficiency chip removal drill, comprising:
the drill bit comprises a drill bit main body, wherein a plurality of main blades and a plurality of auxiliary blades are fixedly arranged on the outer side wall of one end of the drill bit main body, the plurality of main blades and the plurality of auxiliary blades are arranged at intervals along the circumferential direction of the drill bit main body, a plurality of cutting teeth are uniformly distributed on the outer side wall of any main blade and any auxiliary blade, and chip grooves are formed between the adjacent blades;
the tops of the main blades and the auxiliary blades are connected into a whole to divide the chip removing grooves into a plurality of areas which are not communicated with each other, and a nozzle is arranged in any chip removing groove and is communicated with drilling fluid.
2. The efficient chip removal drill of claim 1, wherein the outer side walls of any one of the main blades and any one of the auxiliary blades are further provided with guide grooves, the guide grooves are formed in the height direction of the drill body, and the guide grooves are not in contact with cutting teeth on the corresponding blades.
3. The high efficiency chip removal drill as set forth in claim 2, wherein said channels have a width of between 5 and 20 mm.
4. The high efficiency chip removing drill of claim 2, wherein the widths of two adjacent channels are the same or different.
5. The efficient chip removal drill as defined in claim 1, wherein a gage is fixedly disposed on the outer sidewall of the bottom of either one of the primary blades and either one of the secondary blades, and gage teeth are disposed on the gage.
6. The efficient chip removal drill as defined in claim 1, wherein a connector is fixedly connected to the other end of the drill body, and the connector is connected to a screw drill or a rotary guide device for driving the drill body to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322373135.XU CN220599736U (en) | 2023-09-01 | 2023-09-01 | High-efficient chip removal drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322373135.XU CN220599736U (en) | 2023-09-01 | 2023-09-01 | High-efficient chip removal drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220599736U true CN220599736U (en) | 2024-03-15 |
Family
ID=90171895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322373135.XU Active CN220599736U (en) | 2023-09-01 | 2023-09-01 | High-efficient chip removal drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220599736U (en) |
-
2023
- 2023-09-01 CN CN202322373135.XU patent/CN220599736U/en active Active
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| GR01 | Patent grant |