CN114320168A - Special rotary guide drill bit for superhard stratum - Google Patents
Special rotary guide drill bit for superhard stratum Download PDFInfo
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- CN114320168A CN114320168A CN202210060407.8A CN202210060407A CN114320168A CN 114320168 A CN114320168 A CN 114320168A CN 202210060407 A CN202210060407 A CN 202210060407A CN 114320168 A CN114320168 A CN 114320168A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to the technical field of deep drilling, in particular to a rotary guiding special drill bit for a superhard stratum, which comprises a connecting body, a working main body and a cutting assembly, wherein the working main body is fixedly connected with the upper end of the connecting body, and the cutting assembly is fixedly connected with the working main body; the cutting assembly comprises a cutting block group and a cutting tooth group, the cutting block group is fixedly connected to the excircle of the working main body, and the cutting tooth group is arranged on the cutting block group. The connecting body is internally provided with a heat conducting cavity, a dry ice function chamber, a flow guide port group and a radiating hole group from top to bottom in sequence, a first flow guide port and a second flow guide port are arranged in the flow guide port group at intervals relatively, and a first radiating mesh and a second radiating mesh are arranged in the radiating hole group at intervals relatively. The invention solves the problems of untimely heat dissipation during the high-speed use of the drill bit and poor drilling effect when the drill bit faces a superhard stratum in the prior art.
Description
Technical Field
The invention relates to the technical field of deep drilling, in particular to a rotary steering special drill bit for a superhard stratum.
Background
The drill bit is a drilling tool, usually mainly is applied to the broken operation of tearing open that hard cubic, soil etc. go on, also can use sometimes to realize the manufacturing of time delay precision mould, and the drill bit general application environment among the prior art is comparatively single, and the cutting object generally is moderate hardness, and the heat that produces during the high-speed rotation of drill bit can only go on through plus spray cooling liquid, can not realize high-efficient quick cooling.
Chinese patent disclosure "CN 101310090," entitled earth-boring drill bit with casing component drilling capability, cutting elements for use with such an earth-boring drill bit, and methods of using such an earth-boring drill bit, specifically discloses a drill bit including a bit body having a face on which two different types of cutting elements are disposed, but without improving the cutting of ultra-hard formations and the high temperatures of the drilling process.
Disclosure of Invention
The invention aims to provide a drill bit special for rotary guiding of a superhard stratum, and solves the problems that in the prior art, the heat dissipation is not timely in the high-speed use process of the drill bit and the drilling effect is not good when the drill bit faces the superhard stratum.
The purpose of the invention is realized by the following technical scheme that the cutting device comprises a connecting body, a working main body and a cutting assembly, wherein the working main body is fixedly connected with the upper end of the connecting body, and the cutting assembly is fixedly connected with the working main body; the cutting assembly comprises a cutting block group and a cutting tooth group, the cutting block group is fixedly connected to the excircle of the working main body, and the cutting tooth group is arranged on the cutting block group; the connector is internally provided with a heat conduction cavity, a dry ice function chamber, a flow guide port group and a radiating hole group from top to bottom in sequence, a flow guide port and a second flow guide port are arranged at a relative interval in the flow guide port group, and a radiating mesh and a second radiating mesh are arranged at a relative interval in the radiating hole group.
It should be noted that the self-heat dissipation of the drill bit is realized through the arranged heat conduction cavity, the dry ice function chamber, the flow guide port group and the heat dissipation hole group.
The cutting block group comprises a first group and a second group, four first cutting blocks are arranged in the first group, three second cutting blocks are arranged in the second group, the four first cutting blocks are arranged on the excircle of the working main body at intervals, and the three second cutting blocks are respectively positioned between two adjacent first cutting blocks; the first cutting block and the second cutting block are both in a bar shape, and the extending directions of the first cutting block and the second cutting block are the same as the extending direction of the working main body; two liquid storage bags are arranged in the dry ice function chamber, the two liquid storage bags are spirally arranged, and two ends of the liquid storage bags are respectively connected with the top and the bottom of the inner wall of the dry ice function chamber.
It should be noted that multiple heat dissipation is achieved through the liquid storage bag.
The first diversion port is arranged above the first heat dissipation mesh, the second diversion port is arranged above the second heat dissipation mesh, and a transition block for connecting and fastening a drill bit is fixedly connected below the heat dissipation hole group; the first diversion port and the second diversion port are both provided with anti-leakage nets, and the thickness of each anti-leakage net is one tenth of that of the first heat dissipation net hole.
It should be noted that the dry ice pieces are prevented from falling out by the leakage-proof net.
Two rows of cutting teeth are arranged in the cutting tooth group, and two rows of cutting teeth are arranged on each first cutting block and each second cutting block; the liquid storage bag is made of elastic materials, and the thickness of the liquid storage bag is 100 nm.
It should be noted that, the liquid storage bag is made of elastic material to ensure that the liquid storage bag is not broken.
Two reinforcing teeth are fixedly connected to one ends of the three first cutting blocks, which are far away from the connecting body; the liquid storage bag is filled with cooling liquid.
It should be noted that the circulating cooling is realized by preventing the cooling liquid in the liquid storage zone.
One end of the working main body, which is far away from the connecting body, is provided with a rounded corner; the width of one end, far away from the connecting body, of each first cutting block is smaller than that of one end, near the connecting body, of each first cutting block; the width of one end, far away from the connecting body, of the second cutting block is smaller than that of one end, close to the connecting body, of the second cutting block; the opening rate of the anti-leakage net is 95%, and the thickness of the anti-leakage net is 90 nm; the aperture ratio of the first heat dissipation mesh and the second heat dissipation mesh is 83%.
It should be noted that the holes are formed on the leakage-proof net to ensure the smooth flow of the gas.
The working body is provided with a plurality of nozzles on the end face of one end far away from the connecting body, the nozzles comprise a first nozzle and a second nozzle, and the diameter of the first nozzle is larger than that of the second nozzle. The first nozzle is located at the front end of the second cutting block.
It should be noted that nozzles with different diameters are arranged to realize applications of different working scenarios.
The first cutting block and the second cutting block are both provided with a convex block, the convex block is positioned at one end, close to the connector, of the excircle of the working main body, the width of the convex block is equal to that of the first cutting block, and the thickness of the convex block is larger than that of the first cutting block. The cutting teeth are arranged on the convex block.
The cutting teeth are connected through the bumps, so that the strength of the cutting teeth is enhanced.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1, the straight-line section of the crown part is designed to have super lateral cutting capability, so that the drill bit is more suitable for the requirement of rotary guiding on the lateral cutting capability than a common drill bit, and meanwhile, the heat removal structure of heat can assist the heat reduction of the drill bit;
2. the double-row tooth design improves the service life of the drill bit by more than one time for the stratum with strong abrasiveness;
3. the combined design of the large nozzle and the small nozzle effectively prevents mud bags and enables rock debris to quickly and efficiently wash away from the well bottom;
4. the double-reverse-reaming design is beneficial to having a strong reverse-reaming function in case of meeting a resistance when the drill is tripped.
Drawings
FIG. 1 is a schematic representation of a linker of the invention;
FIG. 2 is one of the schematic views of the drill bit of the present invention;
FIG. 3 is a second schematic view of the drill bit of the present invention;
FIG. 4 is a third schematic view of the drill bit of the present invention.
Illustration of the drawings: 1-a linker; 2-a working body; 3-a first nozzle; 4-a second nozzle; 5-a first cutting block; 6-a second cutting block; 7-a bump; 8-cutting teeth; 9-reinforcing teeth; 11-a heat conducting cavity; 12-a dry ice functional compartment; 13-a first diversion port; 14-first heat dissipation mesh; 15-a transition block; 16-second heat dissipation mesh; 17-second diversion port; 18-liquid storage bag.
Detailed Description
Referring to the accompanying drawings for explaining the accompanying drawings 1-4, the embodiment provides the special drill for the rotary guiding of the superhard formation, which is mainly used for solving the problems of untimely heat dissipation during the high-speed use of the drill and poor drilling effect when facing the superhard formation in the prior art, and is already in the actual use stage.
The drill bit special for the rotary guiding of the superhard formation comprises a connecting body 1, a working main body 2 and a cutting assembly, wherein the working main body 2 is fixedly connected with the upper end of the connecting body 1, and the cutting assembly is fixedly connected with the working main body 2; the cutting assembly comprises a cutting block group and 8 cutting teeth, the cutting block group is fixedly connected to the excircle of the working main body 2, and the cutting block group is provided with 8 cutting teeth;
the connector 1 is internally provided with a heat conducting cavity 11, a dry ice function chamber 12, a flow guide port group and a radiating hole group from top to bottom in sequence, a first flow guide port 13 and a second flow guide port 17 are arranged in the flow guide port group at intervals relatively, and a first radiating mesh 14 and a second radiating mesh 16 are arranged in the radiating hole group at intervals relatively.
It should be noted that drilling and cutting are realized through the arranged connecting body 1, the working body 2 and the cutting assembly, self-heat dissipation of the whole drill bit is realized through the arranged heat conducting cavity 11, the dry ice function chamber 12, the flow guide port group and the heat dissipation hole group, specifically, the dry ice is placed through the dry ice function chamber 12, a large amount of heat is generated by the dry ice in the whole drill bit working process, the dry ice absorbs heat due to sublimation at the moment, so that the temperature of the whole brick is gradually reduced, the dry ice is changed into gas after sublimation, the gas is discharged from the first heat dissipation mesh 14 and the second heat dissipation mesh 16 in the drill bit continuously rotating process, and the whole drill bit working is not affected, on the other hand, the gas in the dry ice function chamber 12 is reduced, and the gas outside the drill bit enters the dry ice function chamber 12 under the action of air pressure, and the gas in the dry ice function chamber 12 is continuously flowing in the process that the drill bit continuously rotates to work, so that the effect of multiple temperature reduction is realized.
The cutting block group comprises a first group and a second group, wherein the first group is internally provided with four first cutting blocks 5, the second group is internally provided with three second cutting blocks 6, the four first cutting blocks 5 are arranged on the excircle of the working body 2 at intervals, and the three second cutting blocks 6 are respectively positioned between two adjacent first cutting blocks 5; the first cutting block 5 and the second cutting block 6 are both in a bar shape, and the extending directions of the first cutting block 5 and the second cutting block 6 are the same as the extending direction of the working body 2;
two liquid storage bags 18 are arranged in the dry ice function chamber 12, the two liquid storage bags 18 are spirally arranged, and two ends of the two liquid storage bags 18 are respectively connected with the top and the bottom of the inner wall of the dry ice function chamber 12.
It should be noted that the first cutting block 5 and the second cutting block 6 are arranged at intervals and have a crown structure, so as to improve the cutting effect. On the other hand, set up the liquid storage bag 18, realize producing thermal reabsorption to the drill bit through liquid storage bag 18, guarantee radiating validity.
The first diversion port 13 is arranged above the first heat dissipation mesh 14, the second diversion port 17 is arranged above the second heat dissipation mesh 16, and a transition block 15 for connecting and fastening a drill bit is fixedly connected below the heat dissipation hole group; the first diversion port 13 and the second diversion port 17 are both provided with anti-leakage nets, and the thickness of each anti-leakage net is one tenth of that of the first heat dissipation mesh 14. It should be noted that the first heat dissipation mesh 14 and the second heat dissipation mesh 16 are arranged to block the dry ice, so that the dry ice is prevented from scattering and being wasted. The arranged anti-leakage net prevents the dry ice from falling out in the rotating process of the drill bit from the first diversion port 13 and the second diversion port 17, and meanwhile, the thickness of the anti-leakage net is very small relative to the first heat dissipation mesh 14 and the second heat dissipation mesh 16, so that effective outflow of gas can be ensured.
Two rows of cutting teeth 8 are arranged in the cutting tooth 8 group, and two rows of cutting teeth 8 are arranged on each first cutting block 5 and each second cutting block 6; the liquid storage bag 18 is made of an elastic material and has a thickness of 100 nm.
It should be noted that, by arranging two rows of cutting teeth 8, the service life of the drill bit can be effectively prolonged. Meanwhile, the liquid storage bag 18 is made of elastic materials, so that in the process of rotating the drill bit, even if the liquid storage bag 18 rotates or deforms in the left-right direction or the like, liquid in the liquid storage bag cannot be broken to spill out.
One ends of the three first cutting blocks 5, which are far away from the connecting body 1, are fixedly connected with two reinforcing teeth 9; the liquid storage bag 18 is filled with cooling liquid.
It should be noted that, by containing the coolant in the reservoir 18, the reservoirs 18 with different thicknesses are used according to different use scenarios, and when the rotational speed of the drill reaches the maximum tensioning limit of the reservoir 18, the reservoir 18 is torn, and the coolant contained therein flows out of the dry ice function chamber 12 to reach the position of the cutting teeth 8, so as to cool the cutting teeth 8. In another embodiment of this embodiment, the reservoir 18 contains water, and the thickness and material of the reservoir 18 ensure that the drill bit will not break when the drill bit reaches the maximum rotation speed, which enables the books in the reservoir 18 to be recycled indefinitely.
One end of the working main body 2, which is far away from the connecting body 1, is provided with a rounded corner; the width of one end of the first cutting block 5, which is far away from the connector 1, is smaller than that of one end of the first cutting block 5, which is close to the connector 1; the width of one end of the second cutting block 6, which is far away from the connector 1, is smaller than that of one end of the second cutting block 6, which is close to the connector 1; the opening rate of the anti-leakage net is 95%, and the thickness of the anti-leakage net is 90 nm; the opening ratio of the first heat dissipation mesh 14 and the second heat dissipation mesh 16 is 83%.
It should be noted that the thickness of the anti-leakage net is set to 90nm, so that heat dissipation can be effectively improved, and meanwhile, the gas circulation of the anti-leakage net can be effectively ensured when the aperture ratio is 95%; the aperture ratio of the first heat dissipation mesh 14 and the second heat dissipation mesh 16 is 83%, so that the blocking of dry ice by the first heat dissipation mesh and the second heat dissipation mesh can be ensured, and meanwhile, the gas can also flow.
A plurality of nozzles are arranged on the end face of one end, far away from the connecting body 1, of the working main body 2, each nozzle comprises a first nozzle 3 and a second nozzle 4, and the diameter of each first nozzle 3 is larger than that of each second nozzle 4.
It should be noted that through setting up the different nozzles of diameter, realize the liquid blowout of different work scenes, effectively prevent the mud bag, can let the detritus rush away the shaft bottom fast and efficient.
The first nozzle 3 is located at the front end of the second cutting block 6. It should be noted that by arranging the first nozzle 3 with a larger diameter at the forefront, a fast spraying of the main scene is achieved. The first cutting block 5 and the second cutting block 6 are both provided with a lug 7, the lug 7 is positioned at one end of the excircle of the working main body 2 close to the connector 1, the width of the lug 7 is equal to that of the first cutting block 5, and the thickness of the lug 7 is greater than that of the first cutting block 5; the projection 7 is provided with cutting teeth 8.
It should be noted that the connection to the cutting block is achieved by the projection 7, while the connection to the cutting tooth 8 can also be enhanced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. Superhard stratum rotary steering special-purpose drill bit is characterized by comprising: the cutting machine comprises a connecting body (1), a working main body (2) and a cutting assembly, wherein the working main body (2) is fixedly connected with the upper end of the connecting body (1), and the cutting assembly is fixedly connected with the working main body (2); the cutting assembly comprises a cutting block group and a cutting tooth (8) group, the cutting block group is fixedly connected to the excircle of the working main body (2), and the cutting tooth (8) group is arranged on the cutting block group;
the dry ice thermal insulation connector is characterized in that a heat conduction cavity (11), a dry ice function chamber (12), a flow guide port group and a heat dissipation hole group are sequentially arranged in the connector (1) from top to bottom, a flow guide port (13) and a second flow guide port (17) are arranged at a relative interval in the flow guide port group, and a heat dissipation mesh (14) and a second heat dissipation mesh (16) are arranged at a relative interval in the heat dissipation hole group.
2. A superhard formation rotary steerable special drill bit according to claim 1, wherein the set of cutting blocks comprises a first set and a second set, the first set having four first cutting blocks (5) therein and the second set having three second cutting blocks (6) therein, the four first cutting blocks (5) being arranged at intervals on the excircle of the working body (2), the three second cutting blocks (6) being respectively located between two adjacent first cutting blocks (5); the first cutting block (5) and the second cutting block (6) are both in a bar shape, and the extending directions of the first cutting block (5) and the second cutting block (6) are the same as the extending direction of the working body (2);
two liquid storage bags (18) are arranged in the dry ice function chamber (12), the two liquid storage bags (18) are spirally arranged, and two ends of each liquid storage bag (18) are respectively connected with the top and the bottom of the inner wall of the dry ice function chamber (12).
3. A superhard formation rotary steerable special drill bit according to claim 2, wherein the first diversion port (13) is arranged above the first heat dissipation mesh (14), the second diversion port (17) is arranged above the second heat dissipation mesh (16), and a transition block (15) for connecting a fastening drill bit is fixedly connected below the heat dissipation mesh group;
the first diversion port 13 and the second diversion port (17) are both provided with anti-leakage nets, and the thickness of each anti-leakage net is one tenth of that of the first heat dissipation net hole 14.
4. A superhard formation rotary steerable specialized drill bit according to claim 2, wherein two rows of cutting teeth (8) are provided within the set of cutting teeth (8), two rows of cutting teeth (8) being provided on each of the first cutting block (5) and the second cutting block (6);
the liquid storage bag (18) is made of elastic materials, and the thickness of the liquid storage bag is 100 nm.
5. A superhard formation rotary steerable special drill bit according to claim 2, characterized in that two reinforcing teeth (9) are fixedly connected to one ends of the three first cutting blocks (5) far away from the connecting body (1); the liquid storage bag (18) is filled with cooling liquid.
6. A superhard formation rotary steerable special drill bit according to claim 3, characterized in that the end of the working body (2) remote from the connecting body (1) has a rounded corner; the width of one end, far away from the connecting body (1), of the first cutting block (5) is smaller than that of one end, close to the connecting body (1), of the first cutting block (5); the width of one end, far away from the connecting body (1), of the second cutting block (6) is smaller than that of one end, close to the connecting body (1), of the second cutting block (6);
the opening rate of the anti-leakage net is 95%, and the thickness of the anti-leakage net is 90 nm; the aperture ratio of the first heat dissipation mesh (14) and the second heat dissipation mesh (16) is 83%.
7. A superhard formation rotary steerable special drill bit according to claim 6, characterized in that a plurality of nozzles are arranged on the end face of the working body (2) far away from the connecting body (1), the nozzles comprise a first nozzle (3) and a second nozzle (4), the diameter of the first nozzle (3) is larger than that of the second nozzle (4); the opening rate of the anti-leakage net is 95%, and the thickness of the anti-leakage net is 90 nm; the aperture ratio of the first heat dissipation mesh (14) and the second heat dissipation mesh (16) is 83%.
8. A superhard formation rotary steerable specialized drill bit according to claim 7, wherein the first nozzle (3) is located at the front end of the second cutting block (6).
9. A superhard formation rotary steerable special drill bit according to claim 6, wherein the first cutting block (5) and the second cutting block (6) are provided with a lug (7), the lug (7) is positioned at one end of the excircle of the working body (2) close to the connecting body (1), the width of the lug (7) is equal to that of the first cutting block (5), and the thickness of the lug (7) is larger than that of the first cutting block (5).
10. A superhard formation rotary steerable special drill bit according to claim 9, characterized in that the cutting teeth (8) are provided on the lug (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210060407.8A CN114320168B (en) | 2022-01-19 | 2022-01-19 | Special drill bit for rotary guiding of superhard stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210060407.8A CN114320168B (en) | 2022-01-19 | 2022-01-19 | Special drill bit for rotary guiding of superhard stratum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114320168A true CN114320168A (en) | 2022-04-12 |
| CN114320168B CN114320168B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210060407.8A Active CN114320168B (en) | 2022-01-19 | 2022-01-19 | Special drill bit for rotary guiding of superhard stratum |
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| CN (1) | CN114320168B (en) |
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| CN203229436U (en) * | 2013-04-19 | 2013-10-09 | 金逹行有限公司 | Seawater desalination, resources comprehensive utilization and zero discharge treatment system |
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| CN108119064A (en) * | 2017-12-15 | 2018-06-05 | 武汉科技大学 | A kind of fast cooling punch device |
| CN108744264A (en) * | 2018-09-06 | 2018-11-06 | 赵海茜 | A kind of sewing wheel needle syringe needle |
| CN211566624U (en) * | 2019-12-30 | 2020-09-25 | 湖北宏岳塑胶有限公司 | PVC milling equipment |
| CN112483006A (en) * | 2020-12-08 | 2021-03-12 | 中国矿业大学 | Rock threaded hole drilling bit of rotary drilling rig and using method and application thereof |
| CN213501595U (en) * | 2020-10-28 | 2021-06-22 | 大连圣约乐器有限公司 | Timber engraving device is used in piano production |
| CN214303702U (en) * | 2020-12-29 | 2021-09-28 | 四川深远石油钻井工具股份有限公司 | Directional jetting cooling PDC drill bit |
| CN215057085U (en) * | 2021-06-01 | 2021-12-07 | 上海顺升地质勘察工程有限公司 | Drilling machine with cooling structure for geological exploration |
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- 2022-01-19 CN CN202210060407.8A patent/CN114320168B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203229436U (en) * | 2013-04-19 | 2013-10-09 | 金逹行有限公司 | Seawater desalination, resources comprehensive utilization and zero discharge treatment system |
| CN103801979A (en) * | 2014-02-10 | 2014-05-21 | 常州大学 | Dry cutting method for dry ice cooling |
| CN108119064A (en) * | 2017-12-15 | 2018-06-05 | 武汉科技大学 | A kind of fast cooling punch device |
| CN108744264A (en) * | 2018-09-06 | 2018-11-06 | 赵海茜 | A kind of sewing wheel needle syringe needle |
| CN211566624U (en) * | 2019-12-30 | 2020-09-25 | 湖北宏岳塑胶有限公司 | PVC milling equipment |
| CN213501595U (en) * | 2020-10-28 | 2021-06-22 | 大连圣约乐器有限公司 | Timber engraving device is used in piano production |
| CN112483006A (en) * | 2020-12-08 | 2021-03-12 | 中国矿业大学 | Rock threaded hole drilling bit of rotary drilling rig and using method and application thereof |
| CN214303702U (en) * | 2020-12-29 | 2021-09-28 | 四川深远石油钻井工具股份有限公司 | Directional jetting cooling PDC drill bit |
| CN215057085U (en) * | 2021-06-01 | 2021-12-07 | 上海顺升地质勘察工程有限公司 | Drilling machine with cooling structure for geological exploration |
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| CN114320168B (en) | 2023-07-21 |
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