CN104747091A - Diamond impregnated segment with tooth cavities - Google Patents
Diamond impregnated segment with tooth cavities Download PDFInfo
- Publication number
- CN104747091A CN104747091A CN201310750088.4A CN201310750088A CN104747091A CN 104747091 A CN104747091 A CN 104747091A CN 201310750088 A CN201310750088 A CN 201310750088A CN 104747091 A CN104747091 A CN 104747091A
- Authority
- CN
- China
- Prior art keywords
- impregnated
- segment
- diamond
- diamond segment
- tooth cave
- 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
Links
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 92
- 239000010432 diamond Substances 0.000 title claims abstract description 92
- 208000002925 dental caries Diseases 0.000 title abstract 6
- 239000002245 particle Substances 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 10
- 229910052582 BN Inorganic materials 0.000 claims description 6
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000005553 drilling Methods 0.000 abstract description 6
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 7
- 235000019994 cava Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000036346 tooth eruption Effects 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- GJNGXPDXRVXSEH-UHFFFAOYSA-N 4-chlorobenzonitrile Chemical compound ClC1=CC=C(C#N)C=C1 GJNGXPDXRVXSEH-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B10/56—Button-type inserts
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a diamond impregnated segment with one to five tooth cavities, comprising one to five cutting elements and a segment body. The cutting elements are inserted into the tooth cavities arranged in one side of the segment body. The tooth cavities are as many as the cutting elements. The tooth cavities are in one or multiple of shapes, such as cylinder, sector column, wedge, hexahedron, elliptic cylinder and prism; the cutting elements matching with the tooth cavities are also in one or multiple of the shapes, such as cylinder, sector column, wedge, hexahedron, elliptic cylinder and prism. The diamond impregnated segment is applied to the center of a diamond impregnated bit, is low in linear speed and generates little heat; the cutting elements can run normally; the cutting elements coordinate with the diamond impregnated segment, allowing double safety, coring of the diamond impregnated bit is well prevented, and drilling footage can be increased. The diamond impregnated segment is suitable for petroleum and geological drill bits.
Description
Technical field
The invention belongs to oil, Earth boring bits cutting element.
Background technology
At present, diamond-impregnated bit is widely used in oil, the drilling well of geology hard rock, the result of use achieved.Existing impregnated diamond segment is mainly: 1. for cutter head or the joint block of stone material saw, take cuboid as fundamental form, two of cuboid parallel surfaces are changed into the arc surface matched with the diameter sawed, for improving cutting-rate, longitudinal layered or formed wavy at cutting edge, for reducing sawing resistance, slot in cutter head both sides.2. impregnated piece on core bit, it is two parallel surfaces mate arc surface approximate cuboid with core bit, for improving drilling well timeliness at top design chamfering, layering, circumference fluting, pointed tooth, ball apical tooth, radial fluting, for reducing resistance, at inside and outside wall design groove, for strengthening weld strength, increasing welding plane, being designed to dihedral weld bond.These cutter heads or impregnated piece are all single impregnated block structures.These the impregnated piece heart portion for diamond-impregnated bit can not prevent from the bottom of one's heart well.
Summary of the invention
The present invention solves the problem that existing impregnated diamond segment can not prevent from the bottom of one's heart for the heart portion of diamond-impregnated bit very well, provides a kind of impregnated diamond segment with tooth cave.
A kind of impregnated diamond segment with tooth cave of the present invention, is made up of cutting element and impregnated diamond segment, and wherein, cutting element is embedded in the tooth cave of impregnated diamond segment side.
Such scheme comprises further:
Impregnated diamond segment is distributed with 1-5 tooth cave, and cooperation cutting element is 1-5 of same quantity with it.
The shape in tooth cave comprises cylindrical, fan cylindricality, wedge shape, hexahedron, elliptical cylinder-shape and prismatic one or more, and the shape of the cutting element coordinated with it comprises cylindrical, fan cylindricality, wedge shape, hexahedron, elliptical cylinder-shape and prismatic one or more equally.
Cutting element is artificial composite polycrystal-diamond, thermally-stabilised man-made polycrystalline diamond, cubic boron nitride block, abrasion-proof ceramic block or natural diamond particles.
Impregnated diamond segment is the sintered body of diamond particles and matrix powder.
After adopting this structure, cutting element on insert on the impregnated diamond segment in Novel belt tooth cave, the cutting element of insert and impregnated diamond segment collaborative work, play dual fail-safe effect.For the heart portion of diamond-impregnated bit, linear velocity is lower, and produce heat few, insert cutting element can normally work, and cuts heart portion rock.When insert cutting element damages, impregnated diamond segment can be taken over becomes primary cutting element cutting heart portion rock, the better phenomenon from the bottom of one's heart of prevention diamond-impregnated bit.The impregnated diamond segment in Novel belt tooth cave is used for the heart portion of diamond-impregnated bit simultaneously, ensure that heart portion rock cuts fast, there will not be heart portion rock core to withstand the phenomenon that drill bit affects rate of penetration, significantly can improve rate of penetration and the drilling depth of diamond-impregnated bit.
Accompanying drawing explanation
The impregnated diamond segment structural front view in the first band tooth cave of Fig. 1 .1
The diamond cast block structure left view in the first band tooth cave of Fig. 1 .2
The diamond cast block structure top view in the first band tooth cave of Fig. 1 .3
The impregnated diamond segment structural front view in Fig. 2 .1 the second band tooth cave
The diamond cast block structure left view in Fig. 2 .2 the second band tooth cave
The diamond cast block structure top view in Fig. 2 .3 the second band tooth cave
The impregnated diamond segment structural front view in the third band tooth cave of Fig. 3 .1
The diamond cast block structure left view in the third band tooth cave of Fig. 3 .2
The diamond cast block structure top view in the third band tooth cave of Fig. 3 .3
The impregnated diamond segment insert cutting element front view in the first band tooth cave of Fig. 4 .1
The impregnated diamond segment insert cutting element left view in the first band tooth cave of Fig. 4 .2
The impregnated diamond segment insert cutting element top view in the first band tooth cave of Fig. 4 .3
The impregnated diamond segment in Fig. 5 band tooth cave is installed in the schematic diagram on bit matrix
1. tooth cave, 2. impregnated diamond segment, 3. cutting element, 4. matrixes in figure.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in further detail.
Impregnated diamond segment with tooth cave is made up of cutting element and impregnated diamond segment.Tooth cave is the position of the cutting elements such as insert man-made polycrystalline diamond composite sheet (PDC), TSP (TSP) and/or cubic boron nitride block (CBN or PCBN), is positioned at the side of the impregnated diamond segment in band tooth cave.The shape of cutting element is cylindrical, fan cylindricality, wedge shape, hexahedron, elliptical cylinder-shape or prismatic, and the shape in tooth cave is cylindrical, fan cylindricality, wedge shape, hexahedron, elliptical cylinder-shape or prismatic for this reason.The impregnated diamond segment in every block band tooth cave can have 1,2,3,4 or 5 tooth caves, impregnated diamond segment is the cutting element playing suppletion after insert cutting element damages, and is the mixed sintering body of diamond particles and matrix material.Diamond particles is natural diamond particles, thermally-stabilised man-made polycrystalline diamond (TSP), synthetic diamond particles.Matrix material is tungsten carbide powder, copper powder, nickel powder, cobalt powder.
Embodiment one:
The impregnated diamond segment in the band tooth cave as shown in Fig. 1 .1, Fig. 1 .2, Fig. 1 .3 is by tooth cave 1, impregnated diamond segment 2 forms, and tooth cave 1 is the position of insert cutting element, is cylindrical hole in figure, insert PDC composite sheet etc., the concrete shape in hole is determined with using the shape of cutting teeth.Impregnated diamond segment 2 is mixed sintered bodies of diamond particles and matrix powder, diamond particles is natural diamond particles, diamond, TSP and cubic boron nitride block, and matrix powder is 20% ~ 70% tungsten carbide powder, 20% ~ 60% copper powder, 3% ~ 20% nickel powder, 10% ~ 60% cobalt powder.Cambered surface on impregnated diamond segment 2 and sphere concentrate for reducing stress, strengthens the weld strength of impregnated piece.The diameter in tooth cave 1 is identical with the width of impregnated diamond segment 2.
With the difference of the impregnated diamond segment with tooth cave shown in Fig. 1 .1, Fig. 1 .2 of embodiment one, Fig. 1 .3, embodiment two: the impregnated diamond segment in the band tooth cave as shown in Fig. 2 .1, Fig. 2 .2, Fig. 2 .3, is that the width of impregnated diamond segment 2 is larger than the diameter in tooth cave 1.Each cambered surface of the impregnated diamond segment with tooth cave is also along with change.
Embodiment three: the impregnated diamond segment in the band tooth cave as shown in Fig. 3 .1, Fig. 3 .2, Fig. 3 .3, be impregnated diamond segment 2 to be arranged 2 tooth caves 1 with the difference of the impregnated diamond segment with tooth cave shown in Fig. 1 .1, Fig. 1 .2 of embodiment one, Fig. 1 .3, be namely with the impregnated diamond segment in bidentate cave.
Can also design the impregnated diamond segment in band more than 3 tooth caves, the shape in tooth cave 1 changes with the change in shape of cutting element, and impregnated diamond segment 2 can be designed to more shape.
As shown in Fig. 4 .1, Fig. 4 .2, Fig. 4 .3, in the tooth cave 1 of the impregnated diamond segment 2 in band tooth cave, be installed with cutting element 3.Cutting element 3 than cylindrical, fans cylindricality, wedge shape, hexahedron, elliptical cylinder-shape or prismatic in addition, and the shape in tooth cave corresponds to cylindrical, fan cylindricality, wedge shape, hexahedron, elliptical cylinder-shape or prismatic for this reason.Cutting element 3 is artificial composite polycrystal-diamond, thermally-stabilised man-made polycrystalline diamond, cubic boron nitride block, abrasion-proof ceramic block and natural diamond particles.
As shown in Figure 5, the impregnated diamond segment 2 being installed with the band tooth cave of cutting element 3 is installed in matrix 4, and impregnated diamond segment 2 is designed to be conducive to improving with matrix 4 bonding strength and reduce the shape that stress is concentrated and the shape being conducive to improving stock-removing efficiency and application life.
When using at the scene, the impregnated diamond segment 2 being installed with the band tooth cave of cutting element 3 is installed in the matrix 4 in drill bit heart portion.When drill bit formation drilling, the linear velocity of heart portion cutting teeth is lower, and the heat of generation is less, and temperature is lower, generally can meet the job requirement of PDC composite sheet.From the working condition of PDC drill bit, PDC composite sheet can prevent phenomenon from the bottom of one's heart to occur very well.Facts have proved, PDC composite sheet is used for diamond-impregnated bit heart portion and can better prevents from the bottom of one's heart, and prevention diamond-impregnated bit damages in advance, is conducive to improving drilling depth.Meanwhile, because the pressure of the drill of PDC composite sheet cutting stratum needs and moment of torsion are lower than impregnated diamond segment, therefore speed-raising effect can be played.The cutting element 3 be installed in tooth cave 1 also can be cubic boron nitride block, abrasion-proof ceramic block, thermally-stabilised man-made polycrystalline diamond and natural diamond particles.When bore meet abrasiveness strong rock time, when the cutting elements such as composite sheet 3 are comparatively fast damaged, impregnated diamond segment 2 will continue to cut formation rock by cutting element as an alternative, continue to keep not by from the bottom of one's heart.This structure plays dual fail-safe effect from the bottom of one's heart to drill bit.
Claims (5)
1. the impregnated diamond segment with tooth cave, be made up of cutting element (3) and impregnated diamond segment (2), it is characterized in that: cutting element (3) is embedded in the tooth cave (1) of impregnated diamond segment (2) side.
2. the impregnated diamond segment in band tooth cave according to claim 1, is characterized in that: impregnated diamond segment (2) is distributed with 1-5 tooth cave (1), the 1-5 coordinating with it cutting element (3) to be same quantity.
3. the impregnated diamond segment in band tooth cave according to claim 1 and 2, it is characterized in that: the shape of tooth cave (1) comprises cylindrical, fan cylindricality, wedge shape, hexahedron, elliptical cylinder-shape and prismatic one or more, the shape of the cutting element (3) coordinated with it comprises cylindrical, fan cylindricality, wedge shape, hexahedron, elliptical cylinder-shape and prismatic one or more equally.
4. the impregnated diamond segment in band tooth cave according to claim 1 and 2, is characterized in that: cutting element (3) is artificial composite polycrystal-diamond, thermally-stabilised man-made polycrystalline diamond, cubic boron nitride block, abrasion-proof ceramic block or natural diamond particles.
5. the impregnated diamond segment in band tooth cave according to claim 1 and 2, is characterized in that: impregnated diamond segment (2) is the sintered body of diamond particles and matrix powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750088.4A CN104747091A (en) | 2013-12-31 | 2013-12-31 | Diamond impregnated segment with tooth cavities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750088.4A CN104747091A (en) | 2013-12-31 | 2013-12-31 | Diamond impregnated segment with tooth cavities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104747091A true CN104747091A (en) | 2015-07-01 |
Family
ID=53587270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310750088.4A Pending CN104747091A (en) | 2013-12-31 | 2013-12-31 | Diamond impregnated segment with tooth cavities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747091A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681126A (en) * | 2019-02-28 | 2019-04-26 | 桂林星钻超硬材料有限公司 | Semilune diamond compact |
| CN110056313A (en) * | 2018-01-18 | 2019-07-26 | 中石化石油工程技术服务有限公司 | The impregnated diamond composite block of PDC- |
| CN110052612A (en) * | 2018-01-18 | 2019-07-26 | 中石化石油工程技术服务有限公司 | Impregnated diamond composite block |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049892A (en) * | 1989-08-30 | 1991-03-13 | 中国地质大学武汉管理干部学院 | Manufacturing process of secondary moulding electroplated diamond bit |
| US20030215611A1 (en) * | 2001-12-11 | 2003-11-20 | 3M Innovative Properties Company | Film structures and methods of making film structures |
| CN2825917Y (en) * | 2005-08-26 | 2006-10-11 | 中国石化集团胜利石油管理局钻井工艺研究院 | Long-life PDC hole reaming bit |
| EP1331050B1 (en) * | 2002-01-24 | 2008-10-01 | M.E.P. Macchine Elettroniche Piegatrici S.p.A. | Expulsion device for bars or segments of bars |
| CN202215152U (en) * | 2011-05-08 | 2012-05-09 | 中国石油化工集团公司 | Diamond impregnated block with toothed holes |
-
2013
- 2013-12-31 CN CN201310750088.4A patent/CN104747091A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049892A (en) * | 1989-08-30 | 1991-03-13 | 中国地质大学武汉管理干部学院 | Manufacturing process of secondary moulding electroplated diamond bit |
| US20030215611A1 (en) * | 2001-12-11 | 2003-11-20 | 3M Innovative Properties Company | Film structures and methods of making film structures |
| EP1331050B1 (en) * | 2002-01-24 | 2008-10-01 | M.E.P. Macchine Elettroniche Piegatrici S.p.A. | Expulsion device for bars or segments of bars |
| CN2825917Y (en) * | 2005-08-26 | 2006-10-11 | 中国石化集团胜利石油管理局钻井工艺研究院 | Long-life PDC hole reaming bit |
| CN202215152U (en) * | 2011-05-08 | 2012-05-09 | 中国石油化工集团公司 | Diamond impregnated block with toothed holes |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056313A (en) * | 2018-01-18 | 2019-07-26 | 中石化石油工程技术服务有限公司 | The impregnated diamond composite block of PDC- |
| CN110052612A (en) * | 2018-01-18 | 2019-07-26 | 中石化石油工程技术服务有限公司 | Impregnated diamond composite block |
| CN109681126A (en) * | 2019-02-28 | 2019-04-26 | 桂林星钻超硬材料有限公司 | Semilune diamond compact |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |
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| WD01 | Invention patent application deemed withdrawn after publication |