CN105756562A - Steel body PDC (Polycrystalline Diamond Compact) directional bit for directional drilling under coal mine - Google Patents
Steel body PDC (Polycrystalline Diamond Compact) directional bit for directional drilling under coal mine Download PDFInfo
- Publication number
- CN105756562A CN105756562A CN201610237516.7A CN201610237516A CN105756562A CN 105756562 A CN105756562 A CN 105756562A CN 201610237516 A CN201610237516 A CN 201610237516A CN 105756562 A CN105756562 A CN 105756562A
- Authority
- CN
- China
- Prior art keywords
- steel body
- pdc
- bit
- coal mine
- directional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
Abstract
The invention relates to a steel body PDC (Polycrystalline Diamond Compact) directional bit for directional drilling under a coal mine. The steel body PDC directional bit comprises a bit steel body, at least three blade edges and impregnated diamond gauge protection blocks, wherein the outer side face of one end of the bit steel body is provided with a thread; a plurality of blade edges are welded on the bottom surface of the other end of the bit steel body; PDC cutting teeth are welded on the outermost sides of the blade edges; the PDC cutting teeth are distributed in a scraper form; a plurality impregnated diamond gauge protection blocks are uniformly welded on the outer side wall of the other end of the bit steel body; the plurality of impregnated diamond gauge protection blocks form a gauge protection surface; the gauge protection surface is vertical to the PDC cutting teeth. The steel body PDC directional bit for directional drilling under the coal mine disclosed by the invention has the beneficial effects that 1, the steel body PDC directional bit has high branch expanding capability and good gauge protection effect, and can replace a flat-bottom tire-body PDC directional bit; 2, the steel body PDC directional bit has high production efficiency and low production cost, can be subjected to secondary repair, and can be used repeatedly.
Description
Technical field
The invention belongs to underground coal mine drilling operation field, be specifically related to a kind of underground coal mine directional drilling steel body type PDC lead bit.
Background technology
Gas pumping, anti-construction of harnessing the river have important function in Safety of Coal Mine Production, and Technology of Directional Drilling is because having the advantage of keyhole track, is widely applied in recent years.
But when directional drilling construction, to there is the PDC lead bit of deflecting function admirable, efficient directional drilling could be realized.The lead bit adopted at present mostly is platybasic type matrix-type PDC drill bit, and it has the drawback that PDC cuts tooth irrational distribution, and cutting resistance is big, and is limited to manufacturing technology, and PDC cuts tooth positioning precision and still has much room for improvement, and complex procedures, production cost is higher.
Summary of the invention
Goal of the invention: the present invention is directed to above-mentioned prior art Problems existing and make improvement, namely the invention discloses a kind of underground coal mine directional drilling steel body type PDC lead bit, it has stronger opens branch capability, stronger gauge effect, platybasic type matrix-type PDC lead bit can be replaced, not only can improve efficiency of construction, and there is higher production efficiency and relatively low production cost, and secondary reparation can be carried out, it is achieved the recycling of steel body type PDC lead bit.
Technical scheme: a kind of underground coal mine directional drilling steel body type PDC lead bit, including drilling bit steel body, at least three wing and impregnated with diamond gauge block,
The lateral surface of one end of described drilling bit steel body is provided with screw thread,
The bottom surface weldering of the other end of described drilling bit steel body is provided with multiple wing, and the outermost weldering of described wing is provided with PDC and cuts tooth, and it is scraper type distribution that described PDC cuts tooth,
The lateral wall of the other end of described drilling bit steel body is uniformly welded and is provided with multiple described impregnated with diamond gauge block, and multiple impregnated with diamond gauge blocks form gage surface, and it is vertical that described gage surface cuts tooth with described PDC.
Further, described drilling bit steel body material is steel alloy.
Further, outermost end PDC cutting tooth centre-to-centre spacing is equal.
Further, the height of the sword of going out that described PDC cuts tooth is 1～2mm.
Further, the matrix composition of described impregnated with diamond gauge block is according to quality meter, including 55wt% tungsten carbide, the nickel of 7wt%, the manganese of 5wt% and 33wt% bronze powder.
Further, the diamond concentration of described impregnated with diamond gauge block is 75%～120%.
Beneficial effect: a kind of underground coal mine directional drilling steel body type PDC lead bit disclosed by the invention has the advantages that
1, there is stronger branch capability of opening, stronger gauge effect, platybasic type matrix-type PDC lead bit can be replaced；
2, there is higher production efficiency and relatively low production cost, and secondary reparation can be carried out, it is achieved the recycling of steel body type PDC lead bit.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of underground coal mine directional drilling steel body type PDC lead bit disclosed by the invention；
Wherein:
1-drilling bit steel body 2-PDC cuts tooth
3-impregnated with diamond gauge block
Detailed description of the invention:
Below the specific embodiment of the present invention is described in detail.
Specific embodiment 1
As it is shown in figure 1, a kind of underground coal mine directional drilling steel body type PDC lead bit includes 1, four wings of drilling bit steel body and impregnated with diamond gauge block 3,
The lateral surface of one end of drilling bit steel body 1 is provided with screw thread,
The bottom surface weldering of the other end of drilling bit steel body 1 is provided with four wings, and the outermost weldering of wing is provided with PDC and cuts tooth 2, PDC cutting tooth 2 distribution in scraper type,
The lateral wall of the other end of drilling bit steel body 1 is uniformly welded and is provided with multiple impregnated with diamond gauge block 3, and multiple impregnated with diamond gauge blocks 3 form gage surface, and it is vertical that gage surface cuts tooth 2 with PDC.
Further, drilling bit steel body 1 material is steel alloy.
Further, PDC cutting tooth 2 centre-to-centre spacing of outermost end is equal.
Further, the height of the sword of going out that PDC cuts tooth 2 is 1mm.
Further, the matrix composition of impregnated with diamond gauge block 3 is according to quality meter, including 55wt% tungsten carbide, the nickel of 7wt%, the manganese of 5wt% and 33wt% bronze powder.
Further, the diamond concentration of impregnated with diamond gauge block 3 is 75%.
Underground coal mine directional drilling steel body type PDC lead bit disclosed by the invention has stronger opens branch capability, stronger gauge effect, platybasic type matrix-type PDC lead bit can be replaced, not only can improve efficiency of construction, and there is higher production efficiency and relatively low production cost, and secondary reparation can be carried out, it is achieved the recycling of steel body type PDC lead bit.
Specific embodiment 2
Roughly the same with specific embodiment 1, differ only in:
A kind of underground coal mine directional drilling steel body type PDC lead bit includes three wings；
The height of the sword of going out that PDC cuts tooth 2 is 2mm；
The diamond concentration of impregnated with diamond gauge block 3 is 120%.
Specific embodiment 3
Roughly the same with specific embodiment 1, differ only in:
A kind of underground coal mine directional drilling steel body type PDC lead bit includes six wings；
The height of the sword of going out that PDC cuts tooth 2 is 1.5mm；
The diamond concentration of impregnated with diamond gauge block 3 is 90%.
Above embodiments of the present invention are elaborated.But the present invention is not limited to above-mentioned embodiment, in the ken that art those of ordinary skill possesses, it is also possible to make a variety of changes under the premise without departing from present inventive concept.
Claims (6)
1. a underground coal mine directional drilling steel body type PDC lead bit, it is characterised in that include drilling bit steel body, at least three wing and impregnated with diamond gauge block,
The lateral surface of one end of described drilling bit steel body is provided with screw thread,
The bottom surface weldering of the other end of described drilling bit steel body is provided with multiple wing, and the outermost weldering of described wing is provided with PDC and cuts tooth, and it is scraper type distribution that described PDC cuts tooth,
The lateral wall of the other end of described drilling bit steel body is uniformly welded and is provided with multiple described impregnated with diamond gauge block, and multiple impregnated with diamond gauge blocks form gage surface, and it is vertical that described gage surface cuts tooth with described PDC.
2. a kind of underground coal mine directional drilling steel body type PDC lead bit according to claim 1, it is characterised in that described drilling bit steel body material is steel alloy.
3. a kind of underground coal mine directional drilling steel body type PDC lead bit according to claim 1, it is characterised in that it is equal that outermost end PDC cuts tooth centre-to-centre spacing.
4. a kind of underground coal mine directional drilling steel body type PDC lead bit according to claim 1, it is characterised in that the height of the sword of going out that described PDC cuts tooth is 1～2mm.
5. a kind of underground coal mine directional drilling steel body type PDC lead bit according to claim 1, it is characterized in that, the matrix composition of described impregnated with diamond gauge block is according to quality meter, including 55wt% tungsten carbide, the nickel of 7wt%, the manganese of 5wt% and 33wt% bronze powder.
6. a kind of underground coal mine directional drilling steel body type PDC lead bit according to Claims 1 to 5 any one, it is characterised in that the diamond concentration of described impregnated with diamond gauge block is 75%～120%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237516.7A CN105756562A (en) | 2016-04-15 | 2016-04-15 | Steel body PDC (Polycrystalline Diamond Compact) directional bit for directional drilling under coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237516.7A CN105756562A (en) | 2016-04-15 | 2016-04-15 | Steel body PDC (Polycrystalline Diamond Compact) directional bit for directional drilling under coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105756562A true CN105756562A (en) | 2016-07-13 |
Family
ID=56333997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610237516.7A Pending CN105756562A (en) | 2016-04-15 | 2016-04-15 | Steel body PDC (Polycrystalline Diamond Compact) directional bit for directional drilling under coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105756562A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023261A (en) * | 2017-06-14 | 2017-08-08 | 吉林大学 | A kind of hard slipping formation diamond compound bit and preparation method thereof |
| CN108119065A (en) * | 2017-11-13 | 2018-06-05 | 中国石油天然气股份有限公司 | Diamond-impregnated bit cutting tooth and its manufacturing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5099929A (en) * | 1990-05-04 | 1992-03-31 | Dresser Industries, Inc. | Unbalanced PDC drill bit with right hand walk tendencies, and method of drilling right hand bore holes |
| CN2161715Y (en) * | 1993-05-23 | 1994-04-13 | 胜利石油管理局钻井工艺研究院 | Steel body PDC drill bit with step diameter keeping structure |
| CN201106405Y (en) * | 2007-10-17 | 2008-08-27 | 大港油田集团有限责任公司 | Steel body PDC drilling bit |
| CN201225096Y (en) * | 2008-07-17 | 2009-04-22 | 武汉六吉科技有限公司 | Novel inner concave multiple-wing composite teeth diamond composite sheet drill head |
| CN204024492U (en) * | 2014-09-04 | 2014-12-17 | 廊坊市鼎鑫联拓工贸有限公司 | A kind of PDC steel body bit and nozzle thereof |
| CN204082014U (en) * | 2014-08-06 | 2015-01-07 | 四川万吉金刚石钻头有限公司 | A kind of combined type PDC drill bit |
| CN205532306U (en) * | 2016-04-15 | 2016-08-31 | 陕西太合科技有限公司 | Colliery is steel style PDC directional bit for directional drilling in pit |
-
2016
- 2016-04-15 CN CN201610237516.7A patent/CN105756562A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5099929A (en) * | 1990-05-04 | 1992-03-31 | Dresser Industries, Inc. | Unbalanced PDC drill bit with right hand walk tendencies, and method of drilling right hand bore holes |
| CN2161715Y (en) * | 1993-05-23 | 1994-04-13 | 胜利石油管理局钻井工艺研究院 | Steel body PDC drill bit with step diameter keeping structure |
| CN201106405Y (en) * | 2007-10-17 | 2008-08-27 | 大港油田集团有限责任公司 | Steel body PDC drilling bit |
| CN201225096Y (en) * | 2008-07-17 | 2009-04-22 | 武汉六吉科技有限公司 | Novel inner concave multiple-wing composite teeth diamond composite sheet drill head |
| CN204082014U (en) * | 2014-08-06 | 2015-01-07 | 四川万吉金刚石钻头有限公司 | A kind of combined type PDC drill bit |
| CN204024492U (en) * | 2014-09-04 | 2014-12-17 | 廊坊市鼎鑫联拓工贸有限公司 | A kind of PDC steel body bit and nozzle thereof |
| CN205532306U (en) * | 2016-04-15 | 2016-08-31 | 陕西太合科技有限公司 | Colliery is steel style PDC directional bit for directional drilling in pit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023261A (en) * | 2017-06-14 | 2017-08-08 | 吉林大学 | A kind of hard slipping formation diamond compound bit and preparation method thereof |
| CN107023261B (en) * | 2017-06-14 | 2023-08-25 | 吉林大学 | Hard slipping stratum diamond composite drill bit and preparation method thereof |
| CN108119065A (en) * | 2017-11-13 | 2018-06-05 | 中国石油天然气股份有限公司 | Diamond-impregnated bit cutting tooth and its manufacturing method |
| CN108119065B (en) * | 2017-11-13 | 2020-03-10 | 中国石油天然气股份有限公司 | Diamond-impregnated bit cutting tooth and manufacturing method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |