US20190368276A1 - Polycrystalline diamond compact - Google Patents

Polycrystalline diamond compact Download PDF

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Publication number
US20190368276A1
US20190368276A1 US16/541,133 US201916541133A US2019368276A1 US 20190368276 A1 US20190368276 A1 US 20190368276A1 US 201916541133 A US201916541133 A US 201916541133A US 2019368276 A1 US2019368276 A1 US 2019368276A1
Authority
US
United States
Prior art keywords
curved surface
polycrystalline diamond
diamond compact
cemented carbide
carbide substrate
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.)
Abandoned
Application number
US16/541,133
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English (en)
Inventor
Dongpeng Zhao
Weifeng DU
Shanshan Ma
Tongjian Niu
Haijiang Fang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SF Diamond Co Ltd
Original Assignee
SF Diamond Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SF Diamond Co Ltd filed Critical SF Diamond Co Ltd
Assigned to SF DIAMOND CO., LTD. reassignment SF DIAMOND CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DU, Weifeng, FANG, Haijiang, MA, Shanshan, NIU, Tongjian, ZHAO, Dongpeng
Publication of US20190368276A1 publication Critical patent/US20190368276A1/en
Abandoned legal-status Critical Current

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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
    • E21B10/46—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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2204/00—End product comprising different layers, coatings or parts of cermet
    • 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

Definitions

  • This disclosure relates to the field of composite materials, and more particularly, to a polycrystalline diamond compact (PDC).
  • PDC polycrystalline diamond compact
  • Polycrystalline diamond compacts are composed of diamond and a cemented carbide substrate and are widely used in manufacturing of drill bits.
  • conventional PDCs have a flat surface, exhibit relatively low working efficiency, and the cutting edges of the PDCs tend to break down.
  • a polycrystalline diamond compact comprising a cemented carbide substrate and a polycrystalline diamond layer disposed on the cemented carbide substrate.
  • the polycrystalline diamond layer is nonplanar and comprises a first curved surface, a second curved surface, and a side surface directly connected to the cemented carbide substrate.
  • the first curved surface is connected to the second curved surface.
  • the joint of the first curved surface and the second curved surface protrudes to form a first cutting edge.
  • the joints of the first curved surface and the second curved surface and the side surface protrudes to form a plurality of second cutting edges.
  • the first cutting edge has an included angle formed by an edge of the first curved surface and an edge of the second curved surface, and the included angle is between 10 and 179°.
  • the second cutting edges each have an included angle formed by the first curved surface and the side surface or the second curved surface and the side surface, and the included angle is between 10 and 179°.
  • the polycrystalline diamond layer comprises a chamfer.
  • the nonplanar polycrystalline diamond layer is formed by contact or non-contact processing or a combination thereof, such as electrical discharge machining, laser processing and so on.
  • the design of the non-planar polycrystalline diamond layer improves the impact resistance of the polycrystalline diamond compact.
  • the arrangement of the first and second cutting edges functioning as cutter teeth reduces the cutting resistance of the polycrystalline diamond compact.
  • the polycrystalline diamond compact exhibits relatively high drilling efficiency, and no failure such as teeth collapse occurs.
  • FIG. 1 is a schematic diagram of a polycrystalline diamond compact according to one embodiment of the disclosure.
  • FIG. 2 is a left view of the polycrystalline diamond compact in FIG. 1 .
  • FIGS. 1-2 shows a polycrystalline diamond compact comprising a cemented carbide substrate 200 and a polycrystalline diamond layer 100 disposed on the cemented carbide substrate.
  • the polycrystalline diamond layer 100 is nonplanar and comprises a first curved surface 101 , a second curved surface 101 ′, and a side surface 300 connected to the cemented carbide substrate 200 .
  • the first curved surface 101 is connected to the second curved surface 101 ′.
  • a joint of the first curved surface 101 and the second curved surface 101 ′ protrudes to form a first cutting edge 104 .
  • Joints of the first curved surface 101 or the second curved surface 101 ′ and the side surface 300 protrudes to form a plurality of second cutting edges 103 .
  • the polycrystalline diamond layer 100 comprises a chamfer 102 disposed between the first curved surface and the side surface, and between the second curved surface and the side surface.
  • the polycrystalline diamond compact has a diameter of 15.88 mm and a height of 13.2 mm.
  • the polycrystalline diamond compact is prepared by high temperature and high-pressure sintering combined with laser processing.
  • the first cutting edge formed by an edge of the first curved surface and an edge of the second curved surface has an included angle of 148.5°.
  • the second cutting edges formed by the first curved surface and the side surface or the second curved surface and the side surface is 169.3°.
  • the chamber of the polycrystalline diamond layer has a width of 0.56 mm.
  • the minimum thickness of the polycrystalline diamond layer is 2.0 mm.
US16/541,133 2017-10-16 2019-08-14 Polycrystalline diamond compact Abandoned US20190368276A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201721327355.7U CN207453880U (zh) 2017-10-16 2017-10-16 一种用于油气钻探的多功能非平面聚晶金刚石复合片
CN201721327355.7 2017-10-16
PCT/CN2017/118761 WO2019075917A1 (zh) 2017-10-16 2017-12-26 一种用于油气钻探的多功能非平面聚晶金刚石复合片

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/118761 Continuation-In-Part WO2019075917A1 (zh) 2017-10-16 2017-12-26 一种用于油气钻探的多功能非平面聚晶金刚石复合片

Publications (1)

Publication Number Publication Date
US20190368276A1 true US20190368276A1 (en) 2019-12-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US16/541,133 Abandoned US20190368276A1 (en) 2017-10-16 2019-08-14 Polycrystalline diamond compact

Country Status (3)

Country Link
US (1) US20190368276A1 (zh)
CN (1) CN207453880U (zh)
WO (1) WO2019075917A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11578538B2 (en) 2020-01-09 2023-02-14 Schlumberger Technology Corporation Cutting element with nonplanar face to improve cutting efficiency and durability
USD997219S1 (en) * 2021-10-14 2023-08-29 Sf Diamond Co., Ltd. Polycrystalline diamond compact with a double-layer structure
US11873684B2 (en) * 2017-03-14 2024-01-16 Sf Diamond Co., Ltd. Polycrystalline diamond compact

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111720061B (zh) * 2019-03-19 2022-06-03 中国石油化工股份有限公司 非平面切削齿、固定齿钻头及其制造方法
CN110500039A (zh) 2019-07-10 2019-11-26 河南四方达超硬材料股份有限公司 带延伸的聚晶金刚石复合片
CN110328372B (zh) * 2019-08-06 2021-07-02 金华中烨超硬材料有限公司 聚晶复合刀具及3c刀具用聚晶金刚石复合片制备工艺
CN111075357A (zh) * 2019-12-13 2020-04-28 深圳市海明润超硬材料股份有限公司 一种多面弧形金刚石复合片
CN113482541B (zh) * 2021-08-17 2022-08-12 中国地质大学（北京） 一种高稳定性非平面齿pdc钻头
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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080264696A1 (en) * 2005-12-20 2008-10-30 Varel International, Ind., L.P. Auto adaptable cutting structure
CN201513124U (zh) * 2009-09-21 2010-06-23 深圳市海明润实业有限公司 犁削型金刚石复合片钻齿
US9371699B2 (en) * 2011-10-26 2016-06-21 Baker Hughes Incorporated Plow-shaped cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods
US10287825B2 (en) * 2014-03-11 2019-05-14 Smith International, Inc. Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elements
CN204729011U (zh) * 2015-07-03 2015-10-28 河南四方达超硬材料股份有限公司 一种低切削阻力曲面结构聚晶金刚石复合片
CN106703704A (zh) * 2016-12-09 2017-05-24 中国石油天然气集团公司 提高破岩效率的非平面切削齿及金刚石钻头
CN106984906B (zh) * 2017-05-04 2019-04-02 河南四方达超硬材料股份有限公司 石油钻头用曲面聚晶金刚石复合片的激光加工方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11873684B2 (en) * 2017-03-14 2024-01-16 Sf Diamond Co., Ltd. Polycrystalline diamond compact
US11578538B2 (en) 2020-01-09 2023-02-14 Schlumberger Technology Corporation Cutting element with nonplanar face to improve cutting efficiency and durability
USD997219S1 (en) * 2021-10-14 2023-08-29 Sf Diamond Co., Ltd. Polycrystalline diamond compact with a double-layer structure

Also Published As

Publication number Publication date
CN207453880U (zh) 2018-06-05
WO2019075917A1 (zh) 2019-04-25

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