CN2078789U - Diamond bit for petroleum drilling - Google Patents
Diamond bit for petroleum drilling Download PDFInfo
- Publication number
- CN2078789U CN2078789U CN 90225266 CN90225266U CN2078789U CN 2078789 U CN2078789 U CN 2078789U CN 90225266 CN90225266 CN 90225266 CN 90225266 U CN90225266 U CN 90225266U CN 2078789 U CN2078789 U CN 2078789U
- Authority
- CN
- China
- Prior art keywords
- diamond
- cutting unit
- bit
- oil drilling
- described oil
- 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.)
- Withdrawn
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a diamond bit for petroleum drilling, comprising a diamond cutting unit, a drill bit matrix body and a steel body. The miniature DC hand-held electric drill is suitable for drilling a hard rock, a hard rock layer and a soft and hard interlayer in petroleum core drilling. The diamond cutting unit is a concentric ring trapezoidal teeth sintered body, and the tip surface forms an arc labial surface of the drill bit, on the teeth part, a reinforcing diamond is arranged, and the cutting unit with different number of teeth alternately arranged mutually. An outer margin cutting apparatus is arranged between the cutting units with different number of teeth. When the soft and hard grounds are drilled, different rock smashing ways can be generated. The utility model has the advantages of high efficiency, long service life.
Description
The utility model relates to a kind of oil drilling diamond bit, and it comprises diamond cutting unit, bit matrix and steel body, is applicable to that petroleum coring creeps into hard rock, competent bed and interbedding of soft and hard rocks.
Extensively adopt natural diamy in the oil drilling, but since surface set natural diamond bit when creeping into hard, competent bed, blade tip is worn very soon, and easily bursts apart, and makes its too early disablement.To this, the natural diamond impregnated sintered body of Belgian DIAMANT BOART company's release LX type taper is inlayed step bit, is used for creeping under the high speed conditions of turbine a soft medium ground; Companies such as U.S. CHRISTENSEN, Belgian BOART have released the natural diamond impregnated round-arc bit of impregnation sintering, creep into the stronger stratum of abrasiveness; Germany EASTMAN company discloses the impregnated round-arc bit of a kind of SC279/D5RO edge pricker formula diamond, this drill bit is made up of diamond cutting unit, bit matrix and steel body, its cutting unit is the impregnated diamond hot pressed sintering piece that labial surface is arcuation, soldering is on bit body one by one, be suitable for creeping into the medium abrasive stratum, when creeping into the lower interbedding of soft and hard rocks of abrasiveness, drill bit is difficult for sword.Existing above-mentioned drill bit structure is single detritus form, or digs for pushing plough, or surfacing, thus essential according to the strict selection in a rock stratum of creeping into drill bit, otherwise will influence drilling efficiency and cost,
The purpose of this utility model is to overcome the single weak point of prior art detritus form, and provide a kind of existing ablation, can produce the circular arc stepped tooth structure drill bit of extruding plough pick effect again, make it in creeping into hard rock, competent bed and soft, hard alternating layers, good drilling effect is all arranged, thereby reduce drilling cost.
The purpose of this utility model can adopt following technical scheme to realize, it comprises diamond cutting unit, bit matrix and steel body, diamond cutting unit edge pricker is on the bit matrix that is sintered on the drill steel body, its special character is, the diamond cutting unit is a concentric ring stepped tooth sintered body, the end face of stepped tooth constitutes the arcuation labial surface of drill bit, the both sides and the bottom of cutting unit diamond cast layer are weld layers, there is the reinforcement diamond in tooth portion, the cutting unit of the different numbers of teeth is alternate, be staggered, and is equipped with the outer rim cutting element like the pyrometric cone bodily form therebetween.
The purpose of this utility model can also be expressed by following other measure,
The diamond cutting unit is according to the variation of drill bit bore, and its width is 8.6-15mm; The stepped tooth top width is 1.8-2.5mm, and the tooth bottom width is 3.5-5mm, and tooth depth is 2.5-3.5mm, and space width is 1.8-2.5mm; The thickness of both sides, diamond cutting unit weld layer is 0.2-1mm, and bottom weld layer thickness is 0.5-2mm; The adamantine concentration of toothed section is 90-120%, and is equipped with φ 1.5 diamond glomerocrysts or the reinforcement of 25-60SPC natural diamond; The stepped tooth end face constitutes drill bit arcuation labial surface, and its radius is the 0.5-0.85 of labial surface thickness; The outer rim width that is equipped with like triangular pyramidal outer rim cutting element along the labial surface outer rim between the different number of teeth cutting units is 6-10mm, and radical length is the 1/4-1/3 of carcass thickness, and exposure is in the little 2-4mm of aspect ratio cutting unit of carcass labial surface.
The utility model compared with prior art has following advantage: cutting unit is the stepped tooth globoidal structure, the arcuation flank of tooth and rock stratum fair wear and tear radian adapt, when creeping into soft rock, has plough pick effect, because alternate being staggered of cutting unit of the different numbers of teeth, in plough pick effect, also produce squeezing action, improve detritus efficient; When creeping into hard rock and competent bed, because alternate staggered cutting unit, labial surface constitutes approximate topped cutting face fully, has both guaranteed to creep into the annular area of grinding fragmentation, has increased the broken specific pressure of grinding again, thereby has realized good drilling efficiency; Basic structure form of the present utility model has overcome the single detritus form of existing drill bit, makes it to change according to the variation on stratum the detritus form, or plough pick extruding, or grinding, and higher drilling efficiency is all arranged.Simultaneously, because the utility model is taked the cutting unit toothed section to increase diamond concentration and is equipped with the reinforcement diamond, improved wear-resistant and the detritus performance, set up the outer rim cutting element in addition, the guarantor who had both increased drill bit directly acts on, and can control drilling liquid flow again, thereby has guaranteed the life-span of drill bit.So the utility model compared with prior art has strong, the applied range of compliance, the drilling efficiency height, creep into characteristics such as the life-span is long, thereby reach the purpose that reduces drilling cost.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is a circular arc stepped tooth edge pricker formula petroleum coring drill bit structure section head;
Fig. 2 is the attached view of Fig. 1;
Fig. 3 is bit cutting block construction figure.
Fig. 1 has explained typical structure of the present utility model, bit matrix 2 usefulness impregnation sintering methods are cemented on the drill steel body 5, tank 3 and external flume 4 in leaving on it, and leave the edge pricker groove of edge pricker diamond cutting unit 1, the gap of groove and cutting unit is 0.08-0.2mm, and the labial surface of bit matrix 2 is curved, and its radius is consistent with the arcuation labial surface radius of cutting unit 1, cutting unit 1 is concentric ring stepped tooth arcuation top surface structure, and its edge pricker is 0.5-2mm in the degree of depth of carcass.
Fig. 2 is the attached view of Fig. 1, has specifically explained drill bit labial surface structure, the cutting unit 1-1 of the different numbers of teeth, and 1-2 is alternate to be staggered, and its crest top land is approximate topped fully, produces different detritus modes when creeping into Different Strata to adapt to.Between cutting unit, be equipped with outer rim cutting element 6, it is like the pyrometric cone bodily form, the outer rim width is 6-10mm, radical length is the 1/4-1/3 of carcass 2 thickness, the little 2-4mm of aspect ratio cutting unit, when with thermally-stabilised diamond, can with the moulding simultaneously of bit matrix impregnation sintering, if use the monocrystalline diamond, can inlay pricker simultaneously with cutting unit.
Fig. 3 is bit cutting block construction figure, and each cutting unit all is concentric ring stepped tooths, and crest top land is the sintered body of arcuation, and the tooth top width of stepped tooth is 1.8-2.5mm, and the tooth bottom width is 3.5-5mm, and tooth depth is 2.5-3.5mm, and space width is 1.8-2.5mm.Cutting unit by both sides weld layer 7, bottom weld layer 10, contain diamond layer 8, no diamond layer 9, reinforcement diamond 11 and form.Contain the mating face arc of diamond layer and no diamond layer, consistent with the tooth top arcwall face, its radius is the 0.5-0.85 of drill bit labial surface width, and component has WC, W
2C and Ni, Cu, Co, Mn, proportioning is (WC+W
2C): (Ni+Cu+Co+Mn)==(55-70): (45-30).The thickness that contains diamond layer 8 is 5.5-8.5mm, and its diamond concentration is 90-120%, and diamond can be used 36-60 order diamond or 20-46 order particulate natural diamond.Both sides and bottom weld layer 7,10 are made up of compositions such as Wc, Ni, Cu, Co, and proportioning is Wc: (Ni+Cu+Co)=(50-65): (50-35), both sides weld layer 7 is thick to be 0.2-1mm, and bottom weld layer 10 is thick to be 0.5-2mm.It is φ 1.5-2 diamond glomerocrysts that cutting unit tooth portion and two ends are evenly equipped with reinforcement diamond 11, also available 25-60SPC natural diamond.
Fig. 1 is the specification digest accompanying drawing.
Claims (9)
1, a kind of oil drilling diamond bit, comprise diamond cutting unit, bit matrix and steel body, diamond cutting unit edge pricker is on the bit matrix that is sintered on the drill steel body, it is characterized in that the diamond cutting unit is a concentric ring stepped tooth sintered body, the end face of stepped tooth constitutes the arcuation labial surface of drill bit, the both sides and the bottom of cutting unit diamond cast layer are weld layers, there is the reinforcement diamond in tooth portion, the cutting unit of the different numbers of teeth is alternate, be staggered, and is equipped with the outer rim cutting element like the pyrometric cone bodily form therebetween.
2, by the described oil drilling diamond bit of claim 1, it is characterized in that the diamond cutting cell width is 8.6-15mm.
3, by the described oil drilling diamond bit of claim 1, it is characterized in that the diamond cutting unit, the stepped tooth top width is 1.8-2.5mm, tooth bottom width 3.5-5mm, and tooth depth is 2.5-3.5mm, space width is 1.8-2.5mm.
4, by the described oil drilling diamond bit of claim 1, it is characterized in that the thickness of both sides, diamond cutting unit weld layer is 0.2-1mm, bottom weld layer thickness is 0.5-2mm.
5, by the described oil drilling diamond bit of claim 1, it is characterized in that the diamond cutting unit adamantine concentration of toothed section is 90-120%.
6, by the described oil drilling diamond bit of claim 1, it is characterized in that diamond cutting unit tooth portion reinforcement diamond is a φ 1.5-2 diamond glomerocryst.
7, by the described oil drilling diamond bit of claim 1, it is characterized in that diamond cutting unit tooth portion reinforcement diamond is the 25-60SPC natural diamond.
8, by the described oil drilling diamond bit of claim 1, it is characterized in that drill bit arcuation labial surface radius is the 0.5-0.85 of labial surface thickness.
9, by the described oil drilling diamond bit of claim 1, it is characterized in that pyrometric cone bodily form outer rim cutting element outer rim width is 6-10mm, radical length is the 1/4-1/3 of carcass thickness, and exposure is in the little 2-4mm of aspect ratio cutting unit of carcass labial surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90225266 CN2078789U (en) | 1990-12-03 | 1990-12-03 | Diamond bit for petroleum drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90225266 CN2078789U (en) | 1990-12-03 | 1990-12-03 | Diamond bit for petroleum drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2078789U true CN2078789U (en) | 1991-06-12 |
Family
ID=4902726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90225266 Withdrawn CN2078789U (en) | 1990-12-03 | 1990-12-03 | Diamond bit for petroleum drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2078789U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100567696C (en) * | 2005-04-14 | 2009-12-09 | 霍利贝顿能源服务公司 | Matrix drill bits and manufacture method |
| CN101324175B (en) * | 2008-07-29 | 2011-08-31 | 贺端威 | Diamond-silicon carbide combination drill teeth for petroleum probe boring and manufacture method thereof |
| CN102268619A (en) * | 2011-06-03 | 2011-12-07 | 中南大学 | Preparation method of carbon-nanotube-reinforced polycrystalline diamond compact (PDC) material |
| CN103982139A (en) * | 2014-05-19 | 2014-08-13 | 中国有色桂林矿产地质研究院有限公司 | High matrix drilling tooth and preparation method thereof |
| CN104399992A (en) * | 2014-10-20 | 2015-03-11 | 四川川庆石油钻采科技有限公司 | Manufacturing method of double-cutting diamond impregnated insert |
| CN104499948A (en) * | 2014-10-20 | 2015-04-08 | 四川川庆石油钻采科技有限公司 | Double-cutting impregnated diamond segment |
| CN104741667A (en) * | 2015-03-23 | 2015-07-01 | 深圳市圆梦精密技术研究院 | Shell hole machining drill bit |
| CN104955595A (en) * | 2013-03-15 | 2015-09-30 | 哈里伯顿能源服务公司 | Directional solidification of polycrystalline diamond compact (PDC) drill bits |
| CN109630027A (en) * | 2017-10-06 | 2019-04-16 | 肯纳金属公司 | Thin-walled earth-boring tools and its manufacturing method |
| CN112828437A (en) * | 2020-12-30 | 2021-05-25 | 北京探矿工程研究所 | Diamond bit high frequency welding mould |
| CN113530455A (en) * | 2021-08-31 | 2021-10-22 | 中国地质大学（武汉） | Diamond bit combining concentric circular teeth and spiral teeth |
| US11986974B2 (en) | 2019-03-25 | 2024-05-21 | Kennametal Inc. | Additive manufacturing techniques and applications thereof |
| US11998987B2 (en) | 2017-12-05 | 2024-06-04 | Kennametal Inc. | Additive manufacturing techniques and applications thereof |
-
1990
- 1990-12-03 CN CN 90225266 patent/CN2078789U/en not_active Withdrawn
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614107B (en) * | 2005-04-14 | 2012-12-26 | 霍利贝顿能源服务公司 | Matrix drill bits and method of manufacture |
| CN100567696C (en) * | 2005-04-14 | 2009-12-09 | 霍利贝顿能源服务公司 | Matrix drill bits and manufacture method |
| CN101324175B (en) * | 2008-07-29 | 2011-08-31 | 贺端威 | Diamond-silicon carbide combination drill teeth for petroleum probe boring and manufacture method thereof |
| CN102268619A (en) * | 2011-06-03 | 2011-12-07 | 中南大学 | Preparation method of carbon-nanotube-reinforced polycrystalline diamond compact (PDC) material |
| CN102268619B (en) * | 2011-06-03 | 2012-08-08 | 中南大学 | Preparation method of carbon-nanotube-reinforced polycrystalline diamond compact (PDC) material |
| CN104955595A (en) * | 2013-03-15 | 2015-09-30 | 哈里伯顿能源服务公司 | Directional solidification of polycrystalline diamond compact (PDC) drill bits |
| US9993869B2 (en) | 2013-03-15 | 2018-06-12 | Halliburton Energy Services, Inc. | Directional solidification of polycrystalline diamond compact (PDC) drill bits |
| CN104955595B (en) * | 2013-03-15 | 2017-09-26 | 哈里伯顿能源服务公司 | The discontinuous method of matrix of rotary drilling-head, the method for manufacturing it and reduction rotary drill bit |
| CN103982139B (en) * | 2014-05-19 | 2016-06-08 | 中国有色桂林矿产地质研究院有限公司 | A kind of high carcass bores tooth and preparation method thereof |
| CN103982139A (en) * | 2014-05-19 | 2014-08-13 | 中国有色桂林矿产地质研究院有限公司 | High matrix drilling tooth and preparation method thereof |
| CN104499948A (en) * | 2014-10-20 | 2015-04-08 | 四川川庆石油钻采科技有限公司 | Double-cutting impregnated diamond segment |
| CN104399992B (en) * | 2014-10-20 | 2017-01-18 | 四川川庆石油钻采科技有限公司 | Manufacturing method of double-cutting impregnated insert |
| CN104399992A (en) * | 2014-10-20 | 2015-03-11 | 四川川庆石油钻采科技有限公司 | Manufacturing method of double-cutting diamond impregnated insert |
| CN104741667A (en) * | 2015-03-23 | 2015-07-01 | 深圳市圆梦精密技术研究院 | Shell hole machining drill bit |
| CN109630027A (en) * | 2017-10-06 | 2019-04-16 | 肯纳金属公司 | Thin-walled earth-boring tools and its manufacturing method |
| US11998987B2 (en) | 2017-12-05 | 2024-06-04 | Kennametal Inc. | Additive manufacturing techniques and applications thereof |
| US11986974B2 (en) | 2019-03-25 | 2024-05-21 | Kennametal Inc. | Additive manufacturing techniques and applications thereof |
| CN112828437A (en) * | 2020-12-30 | 2021-05-25 | 北京探矿工程研究所 | Diamond bit high frequency welding mould |
| CN112828437B (en) * | 2020-12-30 | 2022-07-12 | 北京探矿工程研究所 | High-frequency welding die for diamond drill bit |
| CN113530455A (en) * | 2021-08-31 | 2021-10-22 | 中国地质大学（武汉） | Diamond bit combining concentric circular teeth and spiral teeth |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2078789U (en) | Diamond bit for petroleum drilling | |
| US6843333B2 (en) | Impregnated rotary drag bit | |
| EP0127077B1 (en) | A rotatable drill bit | |
| CN206280004U (en) | A kind of mixing PDC drill bit with multiple cutting function | |
| CN108533183B (en) | PDC drill bit with passive rotary nozzle arranged on blade | |
| CA1212376A (en) | Diamond cutting element in a rotating bit | |
| CN110792397B (en) | Composite drill bit | |
| CN206816181U (en) | A kind of hard slipping formation diamond compound bit | |
| CN202850868U (en) | Composite diamond impregnated comprehensive drill bit | |
| CN201865582U (en) | Steel diamond drill bit | |
| CN104499948A (en) | Double-cutting impregnated diamond segment | |
| CN201695954U (en) | High-sharp sintered diamond bit embedded with iron wires | |
| CN107023261A (en) | A kind of hard slipping formation diamond compound bit and preparation method thereof | |
| CN2412684Y (en) | Diamond/hard metal composite piece | |
| CN2131968Y (en) | Diamond bit for petroleum drilling in super-soft stratum | |
| CN2667137Y (en) | Multifunction diamond inserted tooth protection composite sheet drilling bit | |
| CN2936732Y (en) | Diamond silicon polycrystal titanium-nickel composite structure | |
| CN201184132Y (en) | Polycrystalline diamond composite sheet | |
| CN211058725U (en) | Polycrystalline diamond composite blade wing type drill bit | |
| CN203729884U (en) | Diamond-impregnated drill bit with arc teeth | |
| CN212454263U (en) | Composite sheet for drill bit and drill bit | |
| CN102364032B (en) | Fixed cutting-tooth drilling bit | |
| CN1021708C (en) | Diamond composition material and drill bit made of it | |
| CN2403541Y (en) | Synneusis diamond hard alloy composite tooth | |
| CN2235011Y (en) | Hydraulic auxiliary rock-breaking bit with self-sharpening cutting teeth |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |