CN102619473A - Bionic non-smooth polycrystalline diamond compact - Google Patents
Bionic non-smooth polycrystalline diamond compact Download PDFInfo
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- CN102619473A CN102619473A CN2012100831082A CN201210083108A CN102619473A CN 102619473 A CN102619473 A CN 102619473A CN 2012100831082 A CN2012100831082 A CN 2012100831082A CN 201210083108 A CN201210083108 A CN 201210083108A CN 102619473 A CN102619473 A CN 102619473A
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- smooth
- polycrystalline diamond
- bionic non
- bionic
- drill bit
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Abstract
The invention discloses a bionic non-smooth polycrystalline diamond compact. Bump-shaped or pit-shaped bionic non-smooth patterns are formed on the surface of a polycrystalline diamond layer, a bionic non-smooth pattern layer is formed in a polycrystalline diamond cutting layer, and the bump-shaped or pit-shaped bionic non-smooth patterns with the certain dimensions are regularly arrayed at certain intervals. The bionic non-smooth polycrystalline diamond compact has the advantages of long service life, high drilling speed, low energy consumption, high anti-sticking ability and the like. Cost is saved greatly. After the bionic non-smooth polycrystalline diamond compact is applied to a polycrystalline diamond compact (PDC) drill bit, the PDC drill bit can always keep fast drilling speed and wear resistance, local hydraulic states, cutting conditions and chip removal environments of teeth of the PDC drill bit are improved by the bionic non-smooth patterns, mechanical drilling speed of the drill bit can be increased, and the service life of the drilling bit is prolonged.
Description
Technical field
The invention belongs to the super-hard compound material technical field; Relate to soft creeping into to hard rock; Relate in particular to a kind of PDC composite sheet that is applicable to that various polycrystalline diamonds (PDC) drill bit is used; Also relate to the PDC composite sheet that the borings cutter head is used, particularly a kind of bionic, non-smooth composite polycrystal-diamond.
Background technology
Because desorption, drag reduction, characteristic such as wear-resisting become and save the new technique that material consume, raises the efficiency, reduces cost, playing revolutionary acting on based on the theoretical bionics techniques of bionic, non-smooth, is perverse new thought.The composite polycrystal-diamond goods are a lot of both at home and abroad at present, and the glomerocryst laminar surface mostly is the plane, for reducing the smear metal adhesion, also require the glomerocryst laminar surface to have higher fineness, wear into minute surface, make PDC composite sheet cost increase substantially.In addition; Make the PDC drill bit with these diamond compacts, because the origin of force of composite sheet is little, the rate of penetration of drill bit is very fast at the initial stage of creeping into; But along with the composite sheet working position weares and teares into the plane; The contact area of composite sheet and rock is strengthening, and causes PDC cutting position more and more blunt, and cutting speed reduces and wearing and tearing are accelerated.When these conventional PDC drill bits creep into hard rock; The weak point that exists be to use the life-span short, efficiency of breaking rock is low, unit drilling depth expense is high; Especially the extraction drilling tool has spent great amount of time owing to the wearing and tearing of drill bit are scrapped constantly when creeping into deep hole or superdeep holes, causes the consumption of great amount of manpower, financial resources.
Summary of the invention
The technical problem that the present invention will solve is to overcome the deficiency of above-mentioned prior art, and a kind of theoretical bionic, non-smooth composite polycrystal-diamond of bionic, non-smooth that uses is provided.
For realizing above-mentioned purpose, technical scheme of the present invention is: described bionic, non-smooth composite polycrystal-diamond is to be formed with convex closure shape or dimple-shaped bionic, non-smooth form at the polycrystalline diamond laminar surface.The bionic, non-smooth morphemic stratum forms in the polycrystalline diamond cutting lay.
Described convex closure shape or dimple-shaped bionic, non-smooth form with a certain size, spacing and rule arrange.
The bionic, non-smooth form is applied on the composite polycrystal-diamond structure design; Can alleviate the cutting adhesiveness of composite polycrystal-diamond; Improve composite polycrystal-diamond chip removal environment; Reduce the frictional resistance of composite polycrystal-diamond, improve the life-span of composite polycrystal-diamond and the purpose of stock-removing efficiency.
The present invention is applied to polycrystalline diamond (PDC) drill bit, can make the PDC drill bit remain fast drilling speed and abrasion resistance.The bionic, non-smooth form has been improved partial water mechanics state, machining condition and the chip removal environment of PDC bit teeth, can improve rate of penetration and application life.
Beneficial effect of the present invention: the present invention's bionic, non-smooth composite polycrystal-diamond, have the life-span long,
Characteristics such as drilling speed is high, low, the antiseized ability of energy consumption is strong are greatly practiced thrift cost, are improved the quality of products.
Description of drawings
Fig. 1 is that section is the composite polycrystal-diamond sketch map of the non-smooth morphology of convex closure shape.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is that section is the composite polycrystal-diamond sketch map of the non-smooth morphology of dimple-shaped.
Fig. 4 is the vertical view of Fig. 3.
The specific embodiment
See also Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the surface of polycrystalline diamond layer 2 is provided with a plurality of convex closure shape bionic, non-smooth forms 1, and is as depicted in figs. 1 and 2, or dimple-shaped bionic, non-smooth form 1, like Fig. 3 and shown in Figure 4; Polycrystalline diamond layer 2 is combined on the hard alloy substrate 3 through high temperature and high pressure method, and convex closure shape bionic, non-smooth form 1 is spherical.The diameter of convex closure and pit is 1.5mm; The height of spherical crown and pit depth are 0.5mm; The height of spherical crown and pit depth should be greater than the radiuses of ball; The centre of sphere distance of adjacent convex closure and pit is 2.5mm, and this distance should be less than bulb diameter, and convex closure shape bionic, non-smooth form 1 or dimple-shaped bionic, non-smooth form 1 are distributed in the surface of polycrystalline diamond layer according to even distribution mode.
Claims (2)
1. a bionic, non-smooth composite polycrystal-diamond is characterized in that: be to be formed with convex closure shape or dimple-shaped bionic, non-smooth form at the polycrystalline diamond laminar surface.
2. a kind of bionic, non-smooth composite polycrystal-diamond according to claim 1, it is characterized in that: described polycrystalline diamond layer is combined on the hard alloy substrate through high temperature and high pressure method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100831082A CN102619473A (en) | 2012-03-27 | 2012-03-27 | Bionic non-smooth polycrystalline diamond compact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100831082A CN102619473A (en) | 2012-03-27 | 2012-03-27 | Bionic non-smooth polycrystalline diamond compact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102619473A true CN102619473A (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100831082A Pending CN102619473A (en) | 2012-03-27 | 2012-03-27 | Bionic non-smooth polycrystalline diamond compact |
Country Status (1)
| Country | Link |
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| CN (1) | CN102619473A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603604A (en) * | 2013-11-21 | 2014-02-26 | 西南石油大学 | Balling-resistant PDC (polycrystalline diamond compact) drill bit with pits in surfaces of flow passages |
| CN114151017A (en) * | 2021-11-23 | 2022-03-08 | 中海石油(中国)有限公司 | Bionic eccentric polycrystalline diamond compact |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221654Y (en) * | 1995-04-24 | 1996-03-06 | 河南省科学院河南省计划经济委员会地理研究所 | Diamond-hard alloy composite drill tooth |
| US20110120782A1 (en) * | 2009-11-25 | 2011-05-26 | Us Synthetic Corporation | Polycrystalline diamond compact including a substrate having a raised interfacial surface bonded to a leached polycrystalline diamond table, and applications therefor |
| CN202520234U (en) * | 2012-03-27 | 2012-11-07 | 吉林大学 | Bionic non-smooth PDC (Polycrystalline Diamond Compact) |
-
2012
- 2012-03-27 CN CN2012100831082A patent/CN102619473A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221654Y (en) * | 1995-04-24 | 1996-03-06 | 河南省科学院河南省计划经济委员会地理研究所 | Diamond-hard alloy composite drill tooth |
| US20110120782A1 (en) * | 2009-11-25 | 2011-05-26 | Us Synthetic Corporation | Polycrystalline diamond compact including a substrate having a raised interfacial surface bonded to a leached polycrystalline diamond table, and applications therefor |
| CN202520234U (en) * | 2012-03-27 | 2012-11-07 | 吉林大学 | Bionic non-smooth PDC (Polycrystalline Diamond Compact) |
Non-Patent Citations (2)
| Title |
|---|
| > 20090325 仲崇梅等 仿生非光滑理论在钻探(井)工程中的应用与前景分析 22-25 1-2 第37卷, 第2期 * |
| 仲崇梅等: "仿生非光滑理论在钻探(井)工程中的应用与前景分析", <<石油钻探技术>> * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603604A (en) * | 2013-11-21 | 2014-02-26 | 西南石油大学 | Balling-resistant PDC (polycrystalline diamond compact) drill bit with pits in surfaces of flow passages |
| CN114151017A (en) * | 2021-11-23 | 2022-03-08 | 中海石油(中国)有限公司 | Bionic eccentric polycrystalline diamond compact |
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Application publication date: 20120801 |