CN106761428A - One kind is drilled with efficient chip removal preform composite polycrystal-diamond - Google Patents
One kind is drilled with efficient chip removal preform composite polycrystal-diamond Download PDFInfo
- Publication number
- CN106761428A CN106761428A CN201710149094.2A CN201710149094A CN106761428A CN 106761428 A CN106761428 A CN 106761428A CN 201710149094 A CN201710149094 A CN 201710149094A CN 106761428 A CN106761428 A CN 106761428A
- Authority
- CN
- China
- Prior art keywords
- diamond
- chip removal
- groove
- cutting edge
- efficient chip
- 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.)
- Granted
Links
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 60
- 239000010432 diamond Substances 0.000 title claims abstract description 60
- 239000002131 composite material Substances 0.000 title claims abstract description 51
- 238000005520 cutting process Methods 0.000 claims abstract description 83
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 18
- 239000011159 matrix material Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 11
- 239000011435 rock Substances 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003079 shale oil Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- E21B10/46—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
-
- 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
- E21B10/56—Button-type inserts
- E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
- E21B10/5673—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts having a non planar or non circular cutting face
Abstract
The invention discloses one kind probing efficient chip removal preform composite polycrystal-diamond, including polycrystalline diamond layer and the carbide matrix supporter bonding with polycrystalline diamond layer；Described polycrystalline diamond layer includes upper surface and outer fringe surface, and described upper surface forms the radial cutting edge tooth in center and groove for cuttings with the juncture area of outer fringe surface；Direction is connected and radially extends and is distributed in a ring at a certain angle for the cutting edge tooth and groove for cuttings.Structure of the invention has stronger sharpness and efficient chip removal advantage, and it can increase substantially drilling efficiency and prevent mud drum phenomenon, it is ensured that the stationarity of drilling platforms manipulation.
Description
Technical field
The invention belongs to super-hard compound material technical field, more particularly to a kind of probing efficient chip removal preform glomerocryst gold
Hard rock composite sheet, is mainly used in the fields such as oil drilling, engineering driving and mine locating.
Background technology
Diamond is considered as preferably creeping into material and machining material with the hardness of its superelevation, wearability, and glomerocryst
Diamond compact（PDC）Come out then turn into applications of diamond technograph on an important milestone.At present, PCD
Composite sheet is used in rotary drilling-head, the first-class instrument of diamond drill machine as superabrasive cutting elements, its be widely used in oil,
The fields such as natural gas probing.With the transformation of exploration theory, innovation, unconventionaloil pool（Such as shale oil, gas etc.）Exploration obtains fast
Exhibition is hailed, the drill bit design and its performance need of composite polycrystal-diamond that deeper bad ground is used constantly are lifted, especially
It is drilling competent bed, the stratum such as tough and tensile interlayer, often because difficult drilling depth, chip removal are obstructed etc., occurs collapsing tooth, or even bit freezing etc.
Serious drilling failure.
In view of above-mentioned extremely difficult formations drilled and drill bit easily occur collapsing tooth problem, patent CN200820070865.5 provides one
Plant and solve the problems, such as to collapse tooth because crackle is caused in extended surface, and it is still not competent in terms of efficient chip removal.The present invention proposes a kind of
Probing is given comprehensive with efficient chip removal preform composite polycrystal-diamond using its sharp cutting edge tooth and fluent chip discharging structure
Close and solve difficult drilling, collapse the problems such as tooth, mud drum.
The content of the invention
It is an object of the invention to the upper surface of polycrystalline diamond layer for passing through to change PCD composite sheets and outer fringe surface knot
Structure, there is provided a kind of probing of knife-edged is bored with efficient chip removal preform composite polycrystal-diamond, this PCD composite sheet for hardly possible
Difficult drilling can be overcome in spy stratum, is reduced and is collapsed tooth problem, it is to avoid the drilling failures such as mud drum occur, raising bit life and drilling well are flat
The manipulation stationarity of platform.
To achieve the above object, the technical solution adopted by the present invention is：
With efficient chip removal preform composite polycrystal-diamond, it includes polycrystalline diamond layer and and polycrystalline diamond for one kind probing
The bonding hard alloy supporter of layer.Wherein, the polycrystalline diamond layer includes upper surface and outer fringe surface, the upper surface
With outer fringe surface cutting edge tooth and groove for cuttings are formed at least part of juncture area.
Further, described cutting edge tooth is angled with polycrystalline diamond layer outer fringe surface and more than or equal to 90 °.
Further, described cutting edge tooth 0.3mm, the radical length of being not less than high is not less than 0.5 mm.
Further, described cutting edge tooth and groove for cuttings are radially extended and are distributed in a ring.
Further, the groove for cuttings is angled with polycrystalline diamond layer outer fringe surface and more than or equal to 90 °.
Further, described cutting edge tooth, chamfering is provided between groove for cuttings and outer fringe surface or without chamfering.
Further, the longitudinal angle between described cutting edge tooth and groove for cuttings is less than 60 °.
Further, there is appearance bits groove in polycrystalline diamond layer upper surface centre.
It is further, described that to hold bits groove rounded, square etc..
Further, the bits depth of groove of holding is less than polycrystalline diamond thickness 1/10.
Beneficial effects of the present invention are：The present invention is golden using this efficient chip removal preform glomerocryst in drilling drilling process
Used as wear-resisting cutting element, there is sharp cutting edge tooth and fluent groove for cuttings or appearance bits knot in its structure to hard rock composite sheet
Tooth is collapsed in structure, it is possible to decrease PCD composite sheets working region grinding heat, reduction, it is to avoid chip removal does not occur the drilling failures such as mud drum freely, can be big
Amplitude improves the manipulation stationarity of drilling well drilling efficiency and drilling platforms.
Brief description of the drawings
Fig. 1 is a kind of structural representation without the efficient chip removal preform composite polycrystal-diamond for holding bits structure in the present invention
Figure；
Fig. 2 is a kind of structural representation of the efficient chip removal preform composite polycrystal-diamond with bits structure is held in the present invention；
Fig. 3 is a kind of structural representation of the efficient chip removal preform composite polycrystal-diamond of four swords tooth；
Fig. 4 is the structural representation of the efficient chip removal preform composite polycrystal-diamond of another four swords tooth；
Fig. 5 is a kind of structural representation of the efficient chip removal preform composite polycrystal-diamond of five swords tooth；
Fig. 6 is the structural representation of the efficient chip removal preform composite polycrystal-diamond of another five swords tooth；
Fig. 7 is a kind of structural representation of the efficient chip removal preform composite polycrystal-diamond of eight swords tooth；
Fig. 8 is the structural representation of the efficient chip removal preform composite polycrystal-diamond of another eight swords tooth；
Fig. 9 is a kind of structural representation of the efficient chip removal preform composite polycrystal-diamond of ten swords tooth；
Figure 10 is the structural representation of the efficient chip removal preform composite polycrystal-diamond of another ten swords tooth；
Figure 11 is a kind of structural representation of the efficient chip removal preform composite polycrystal-diamond of 12 sword tooth；
Figure 12 is the structural representation of the efficient chip removal preform composite polycrystal-diamond of another 12 sword teeth.
Specific embodiment
In order to be more clearly understood that the present invention, below in conjunction with the embodiment content that the present invention is furture elucidated, but this hair
Bright content is not only limited to the following examples.Based on embodiment in the present invention, those of ordinary skill in the art are not doing
Go out that creative work precursor is lower to obtain other all embodiments, would fall within the category of present invention protection.
As illustrated in fig. 1 and 2, the present invention includes polycrystalline diamond layer 100 and the hard alloy supporter bonding with it
200.The polycrystalline diamond layer 100 includes upper surface 101 and outer fringe surface 102, the upper surface 101 and outer fringe surface 102
Cutting edge tooth 103 and groove for cuttings 104 are formed at least part of juncture area.Additionally, as illustrated with reference to fig. 2, the glomerocryst gold
Hard rock layer upper surface centre there are appearance bits groove 105.
Embodiment one
As shown in Figure 3 and Figure 4, it is the efficient chip removal preform composite polycrystal-diamond of the four sword teeth with similar structure.
With reference to shown in Fig. 3, the cutting edge tooth 103 of this four swords tooth composite sheet radially extends length 1.87mm, height 1.23mm, itself and outer rim
The angle on surface 102 is 90 °；And groove for cuttings 104 is connected with 22 ° with cutting edge tooth 103 and be distributed in a ring, itself and outer fringe surface
102 angle is 112 °.Chamfering is 0.35 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.With reference to Fig. 4
Shown, the cutting edge tooth 103 of this four swords tooth composite sheet radially extends length 1.83mm, height 1.23mm, itself and outer fringe surface 102
Angle be 99.5 °；And groove for cuttings 104 is connected with 33.2 ° with cutting edge tooth 103 and be distributed in a ring, itself and outer fringe surface 102
Angle be 123.2 °.Chamfering is 0.35 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.
Embodiment two
As shown in Figure 5 and Figure 6, it is the efficient chip removal preform composite polycrystal-diamond of the five sword teeth with similar structure.
With reference to shown in Fig. 5, the cutting edge tooth 103 of this five swords tooth composite sheet radially extends length 1.91mm, height 1.23mm, itself and outer rim
The angle on surface 102 is 90 °；And groove for cuttings 104 is connected with 20 ° with cutting edge tooth 103 and be distributed in a ring, itself and outer fringe surface
102 angle is 110 °.Chamfering is 0.35 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.With reference to Fig. 6
Shown, the cutting edge tooth 103 of this five swords tooth composite sheet radially extends length 1.87mm, height 1.23mm, itself and outer fringe surface 102
Angle be 100.1 °；And groove for cuttings 104 is connected with 35.6 ° with cutting edge tooth 103 and be distributed in a ring, itself and outer fringe surface
102 angle is 125.6 °.Chamfering is 0.35 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.
The efficient chip removal preform composite polycrystal-diamond that embodiment one and embodiment two are provided is applied to extremely hard rock
The probing of the bad grounds such as layer, tough and tensile interlayer, especially extremely hard rock stratum.This multiple-cutting-edge toothing also greatly improves the utilization rate of composite sheet
And reduce drilling cost etc..
Embodiment three
As shown in Figure 7 and Figure 8, it is the efficient chip removal preform composite polycrystal-diamond of the eight sword teeth with similar structure.
With reference to shown in Fig. 7, the cutting edge tooth 103 of this eight swords tooth composite sheet radially extends length 1.78mm, height 1.23mm, itself and outer rim
The angle on surface 102 is 90 °；And groove for cuttings 104 is connected with 23 ° with cutting edge tooth 103 and be distributed in a ring, itself and outer fringe surface
102 angle is 113 °.Chamfering is 0.40 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.With reference to Fig. 8
Shown, the cutting edge tooth 103 of this eight swords tooth composite sheet radially extends length 1.76mm, height 1.23mm, itself and outer fringe surface 102
Angle be 99.3 °；And groove for cuttings 104 is connected with 32.8 ° with cutting edge tooth 103 and be distributed in a ring, itself and outer fringe surface 102
Angle be 122.8 °.Chamfering is 0.40 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.
Example IV
Shown in refer to the attached drawing 9,10, its be the ten sword teeth with similar structure efficient chip removal preform polycrystalline diamond be combined
Piece.With reference to shown in Fig. 9, the cutting edge tooth 103 of this ten swords tooth composite sheet radially extends length 1.69mm, height 1.23mm, its with
The angle of outer fringe surface 102 is 90 °；And groove for cuttings 104 is connected with 25 ° with cutting edge tooth 103 and be distributed in a ring, itself and outer rim
The angle on surface 102 is 115 °.Chamfering is 0.40 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.Ginseng
Examine shown in Figure 10, the cutting edge tooth 103 of this ten swords tooth composite sheet radially extends length 1.68mm, height 1.23mm, itself and outer rim
The angle on surface 102 is 99.1 °；And groove for cuttings 104 is connected with 36.5 ° with cutting edge tooth 103 and be distributed in a ring, itself and outer rim
The angle on surface 102 is 126.5 °.Chamfering is 0.40 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.
Embodiment five
As is illustrated by figs. 11 and 12, its be the 12 sword teeth with similar structure efficient chip removal preform polycrystalline diamond be combined
Piece.With reference to shown in Figure 11, the cutting edge tooth 103 of this 12 sword tooth composite sheet radially extends length 1.72mm, height 1.23mm, its
It it is 90 ° with the angle of outer fringe surface 102；And groove for cuttings 104 is connected with 26 ° with cutting edge tooth 103 and be distributed in a ring, its with it is outer
The angle on edge surface 102 is 116 °.Chamfering is 0.40 mm between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102.
With reference to shown in Figure 12, the cutting edge tooth 103 of this 12 sword tooth composite sheet radially extends length 1.70mm, height 1.23mm, its with
The angle of outer fringe surface 102 is 99.7 °；And groove for cuttings 104 is connected with 38.3 ° with cutting edge tooth 103 and be distributed in a ring, its with
The angle of outer fringe surface 102 is 128.3 °.Chamfering is 0.40 between cutting edge tooth 103, groove for cuttings 104 and outer fringe surface 102
mm。
The efficient chip removal preform composite polycrystal-diamond that embodiment three, example IV and embodiment five are provided is applicable
In the probing of the bad grounds such as extremely hard rock stratum, tough and tensile interlayer, especially tough and tensile interlayer and deeper bad ground.This multiple-cutting-edge toothing
The problems such as difficult drilling in stratum, machine are fast to occur mud drum slowly and easily can be solved.
The foregoing is only the preferred embodiments of the present invention, it is noted that for those skilled in the art
For, under the premise of technical scheme is not departed from, some modifications or equivalent substitute can be also made, this is accordingly to be regarded as the present invention
Protection category.
Claims (10)
1. it is a kind of to drill with efficient chip removal preform composite polycrystal-diamond, including polycrystalline diamond layer and and polycrystalline diamond
The bonding hard alloy substrate of layer, it is characterised in that：Described polycrystalline diamond layer includes upper surface and outer fringe surface, described
The juncture area of upper surface and outer fringe surface form the radial cutting edge tooth in center and groove for cuttings.
It is 2. a kind of according to claim 1 to drill with efficient chip removal preform composite polycrystal-diamond, it is characterised in that：Institute
State cutting edge tooth and polycrystalline diamond layer outer fringe surface angled and more than or equal to 90 °.
It is 3. a kind of according to claim 1 to drill with efficient chip removal preform composite polycrystal-diamond, it is characterised in that：Institute
The cutting edge tooth and groove for cuttings stated are radially extended and are distributed in a ring.
It is 4. a kind of according to claim 1 to drill with efficient chip removal preform composite polycrystal-diamond, it is characterised in that：Institute
The cutting edge tooth stated is high to be not less than 0.3mm, and radical length is not less than 0.5 mm.
It is 5. a kind of according to claim 1 to drill with efficient chip removal preform composite polycrystal-diamond, it is characterised in that：Institute
State groove for cuttings and polycrystalline diamond layer outer fringe surface angled and more than or equal to 90 °.
It is 6. a kind of according to claim 1 to drill with efficient chip removal preform composite polycrystal-diamond, it is characterised in that：Institute
The cutting edge tooth stated, chamfering is provided between groove for cuttings and outer fringe surface or without chamfering.
7. according to claim 1 a kind of probing with efficient chip removal preform composite polycrystal-diamond, its special type is：Institute
The longitudinal angle stated between cutting edge tooth and groove for cuttings is less than 60 °.
It is 8. a kind of according to claim 1 to drill with efficient chip removal preform composite polycrystal-diamond, it is characterised in that：Institute
State polycrystalline diamond layer upper surface centre and there is appearance bits groove.
It is 9. a kind of according to claim 8 to drill with efficient chip removal preform composite polycrystal-diamond, it is characterised in that：Institute
The appearance bits groove stated is rounded, square etc..
It is 10. a kind of according to claim 8 to drill with efficient chip removal preform composite polycrystal-diamond, it is characterised in that：
Described appearance bits depth of groove is more than polycrystalline diamond thickness 1/10.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149094.2A CN106761428B (en) | 2017-03-14 | 2017-03-14 | A kind of efficient chip removal preform composite polycrystal-diamond of probing |
| PCT/CN2017/105474 WO2018166191A1 (en) | 2017-03-14 | 2017-10-10 | Drilling pre-formed polycrystalline diamond compact with efficient debris removal function |
| US16/297,718 US20190203539A1 (en) | 2017-03-14 | 2019-03-11 | Polycrystalline diamond compact |
| US17/170,869 US11873684B2 (en) | 2017-03-14 | 2021-02-08 | Polycrystalline diamond compact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149094.2A CN106761428B (en) | 2017-03-14 | 2017-03-14 | A kind of efficient chip removal preform composite polycrystal-diamond of probing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106761428A true CN106761428A (en) | 2017-05-31 |
| CN106761428B CN106761428B (en) | 2019-04-23 |
Family
ID=58961493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710149094.2A Active CN106761428B (en) | 2017-03-14 | 2017-03-14 | A kind of efficient chip removal preform composite polycrystal-diamond of probing |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20190203539A1 (en) |
| CN (1) | CN106761428B (en) |
| WO (1) | WO2018166191A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018166191A1 (en) * | 2017-03-14 | 2018-09-20 | 河南四方达超硬材料股份有限公司 | Drilling pre-formed polycrystalline diamond compact with efficient debris removal function |
| WO2019095511A1 (en) * | 2017-11-15 | 2019-05-23 | 河南四方达超硬材料股份有限公司 | High impact resistant non-planar polycrystalline diamond composite piece for drilling complex hard rock formation |
| CN112437827A (en) * | 2018-07-27 | 2021-03-02 | 贝克休斯控股有限责任公司 | Cutting elements configured to reduce impact damage and related tools and methods-alternative configurations |
| USD997219S1 (en) | 2021-10-14 | 2023-08-29 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a double-layer structure |
| US11772977B2 (en) | 2019-07-10 | 2023-10-03 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom |
| USD1006074S1 (en) | 2021-10-14 | 2023-11-28 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised triangular structure |
| USD1006073S1 (en) | 2021-10-14 | 2023-11-28 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised surface sloping to a peripheral extension |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11873684B2 (en) * | 2017-03-14 | 2024-01-16 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact |
| GB201907976D0 (en) * | 2019-06-04 | 2019-07-17 | Element Six Uk Ltd | A cutting element and methods of making same |
| US11208849B2 (en) | 2019-11-04 | 2021-12-28 | National Oilwell DHT, L.P. | Drill bit cutter elements and drill bits including same |
| US11578538B2 (en) | 2020-01-09 | 2023-02-14 | Schlumberger Technology Corporation | Cutting element with nonplanar face to improve cutting efficiency and durability |
| CA3165503A1 (en) * | 2020-02-05 | 2021-08-12 | Baker Hughes Oilfield Operations Llc | Cutting element with improved mechanical efficiency |
| CA216752S (en) * | 2021-12-01 | 2023-10-12 | Element Six Uk Ltd | Part of a welding machine |
| USD1011396S1 (en) * | 2021-12-01 | 2024-01-16 | Element Six (Uk) Limited | Friction stir welding tool assembly |
| USD1011395S1 (en) * | 2021-12-01 | 2024-01-16 | Element Six (Uk) Limited | Friction stir welding tool assembly |
| USD1004649S1 (en) * | 2022-05-24 | 2023-11-14 | Element Six (Uk) Limited | Friction stir welding tool assembly |
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- 2017-03-14 CN CN201710149094.2A patent/CN106761428B/en active Active
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2019
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| WO2019095511A1 (en) * | 2017-11-15 | 2019-05-23 | 河南四方达超硬材料股份有限公司 | High impact resistant non-planar polycrystalline diamond composite piece for drilling complex hard rock formation |
| CN112437827A (en) * | 2018-07-27 | 2021-03-02 | 贝克休斯控股有限责任公司 | Cutting elements configured to reduce impact damage and related tools and methods-alternative configurations |
| CN112437827B (en) * | 2018-07-27 | 2023-10-17 | 贝克休斯控股有限责任公司 | Cutting elements configured to reduce impact damage and related tools and methods-alternative configurations |
| US11772977B2 (en) | 2019-07-10 | 2023-10-03 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom |
| USD997219S1 (en) | 2021-10-14 | 2023-08-29 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a double-layer structure |
| USD1006074S1 (en) | 2021-10-14 | 2023-11-28 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised triangular structure |
| USD1006073S1 (en) | 2021-10-14 | 2023-11-28 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised surface sloping to a peripheral extension |
Also Published As
| Publication number | Publication date |
|---|---|
| US20190203539A1 (en) | 2019-07-04 |
| CN106761428B (en) | 2019-04-23 |
| WO2018166191A1 (en) | 2018-09-20 |
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