WO2019075917A1 - 一种用于油气钻探的多功能非平面聚晶金刚石复合片 - Google Patents

一种用于油气钻探的多功能非平面聚晶金刚石复合片 Download PDF

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WO2019075917A1
WO2019075917A1 PCT/CN2017/118761 CN2017118761W WO2019075917A1 WO 2019075917 A1 WO2019075917 A1 WO 2019075917A1 CN 2017118761 W CN2017118761 W CN 2017118761W WO 2019075917 A1 WO2019075917 A1 WO 2019075917A1
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polycrystalline diamond
planar
oil
gas drilling
curved surfaces
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PCT/CN2017/118761
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French (fr)
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赵东鹏
杜卫锋
马姗姗
牛同健
方海江
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河南四方达超硬材料股份有限公司
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Publication of WO2019075917A1 publication Critical patent/WO2019075917A1/zh
Priority to US16/541,133 priority Critical patent/US20190368276A1/en

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    • 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
    • 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

  • the invention belongs to the technical field of super-hard composite materials, and mainly relates to oil and gas drilling, engineering excavation, tools and equipment for prospecting, and the like, and particularly relates to a multifunctional non-planar polycrystalline diamond composite sheet for oil and gas drilling.
  • the polycrystalline diamond compact is prepared by sintering high-quality diamond micropowder and cemented carbide substrate by high temperature and high pressure process, which takes into account the high hardness and wear resistance of diamond and the high impact resistance of cemented carbide.
  • polycrystalline diamond compacts are considered to be ideal drilling materials because of their excellent comprehensive properties, and are important supporting materials in drilling such as oil and natural gas.
  • the more demanding polycrystalline diamond compact is suitable for more complex and deeper layer drilling applications.
  • Those skilled in the art and manufacturers have different methods for improving the performance of the polycrystalline diamond compact, and adjusting the polycrystalline layer structure of the polycrystalline diamond compact is one of the important ways to improve the overall performance.
  • Patent 201520471001.4 discloses a low-cutting resistance curved-structure polycrystalline diamond compact sheet, which solves the drilling efficiency of complex formations, but the utilization rate and chip removal effect are not ideal.
  • Patent No. 201521102644.8 discloses a multi-blade shaped polycrystalline diamond composite sheet, which solves the drilling efficiency and utilization rate of a complicated formation, but has problems such as poor chip removal passage.
  • the present invention proposes a multifunctional non-planar polycrystalline diamond compact for oil and gas drilling, which not only provides a feasible solution for solving complicated difficult drilling into the formation, but also realizes smooth discharge passage and targeted solutions for different rock formations. The solution realizes the application of one tooth and multiple strata, greatly improves the problem of diamond bit selection and complex selection of the ground, and can provide customers with double choice for different hard formations.
  • the object of the present invention is to provide a multi-functional non-planar polycrystalline diamond composite sheet with high utilization rate, high efficiency chip removal and single selection of teeth to solve different formation drilling by improving the surface structure of the polycrystalline layer of the polycrystalline diamond composite sheet.
  • This versatile non-planar polycrystalline compact sheet is simplified in drilling complex formations, and greatly increases the life of diamond bits and reduces the overall cost of drilling.
  • a multifunctional non-planar polycrystalline diamond compact for oil and gas drilling comprising a polycrystalline diamond layer and a cemented carbide substrate bonded to the polycrystalline diamond layer; wherein the polycrystalline diamond layer is a non-planar structure
  • the non-planar structure is a curved surface formed by an angle between the two curved surfaces and between the two curved surfaces and the outer edge surface; the sharp cutting cutting teeth formed by the angle between the two curved surfaces, the angle ranges from 10° to 179° .
  • the two curved surfaces are connected by a curved surface or a non-arc surface transition.
  • the two curved surfaces and the outer edge surface are formed at a certain angle by a wide blunt convex cutting edge, and the angle ranges from 10° to 179°.
  • the wide blunt convex cutting edge has an angle ranging from 10° to 179°.
  • non-planar polycrystalline diamond layer is chamfered or chamfered.
  • the non-planar polycrystalline diamond layer is prepared by a single sintering method, such as a high temperature and high pressure sintering molding method.
  • non-planar polycrystalline diamond layer is subjected to contact processing, non-contact processing, or a combination thereof, such as an electric discharge machining method, a laser processing method, or the like.
  • the invention provides a multifunctional non-planar polycrystalline diamond composite sheet with simple structure, high utilization rate, high efficiency chip removal and single selection of teeth to solve different formation drilling.
  • multifunctional non-planar polycrystalline diamond composite sheets are used as supporting materials, and the structure forms a chip evacuation channel with a curved surface, and at the same time, there are sharp cutting edges and wide blunt convex cutting edges for different rock layers.
  • Drilling, etc., sharp cutting teeth can be applied to extremely hard and complex formations with its tipped teeth, which can quickly break rock and improve drilling efficiency; the wide blunt-edged cutting teeth can be applied to softer formations.
  • the shape of the blade teeth excavates the large rock formation and improves the drilling efficiency.
  • the composite sheet layout has double cutting edges, which can be reused and reduced in cost.
  • the non-planar structure does not have a stress concentration region, which can greatly reduce the serious failure phenomena such as chipping and delamination of the polycrystalline diamond compact in the application.
  • Figure 1 is a schematic view showing the structure of an embodiment of the present invention
  • Figure 2 is a left side view of Figure 1.
  • the present invention comprises a polycrystalline diamond layer 100 and a cemented carbide substrate 200 bonded thereto.
  • the polycrystalline diamond layer 100 is a non-planar structure which is composed of two curved surfaces 101, 101'. A curved surface formed by a certain angle between the two curved surfaces 101, 101' and the outer edge surface 300.
  • the two curved surfaces 101, 101' form a sharp cutting edge 104 at an angle, and the wide curved projection cutting teeth 103 are formed at an angle between the two curved surfaces 101, 101' and the outer edge surface 300.
  • This non-planar polycrystalline diamond layer is provided with a chamfer 102.
  • the multifunctional non-planar polycrystalline diamond compact selected in this embodiment has a diameter of 15.88 mm and a height of 13.2 mm.
  • the multifunctional polycrystalline diamond layer is prepared by high temperature and high pressure sintering molding method combined with laser processing molding method, wherein the sharp cutting edge formed by the two curved surfaces has an angle of 148.5°, and the two curved surfaces and the outer edge surface form a wide blunt convex with 68.9°. The angle between the cutting edges is 169.3°.
  • the non-planar polycrystalline diamond layer has a chamfer of 0.56 mm and the lowest polycrystalline diamond layer has a thickness of about 2.0 mm.
  • the multifunctional polycrystalline diamond composite sheet was compared with the control group (conventional planar structure polycrystalline diamond composite sheet of the same specification) for laboratory comparison test.
  • the comparison test results show that compared with the traditional planar structure polycrystalline diamond compact, the multi-functional non-planar polycrystalline diamond compact uses the wide blunt raised cutting teeth to grind the Rockwell hardness of about 6 grades in the same grinding load.
  • the rock removal efficiency increased by 83% under force conditions, and there was no failure phenomenon such as chipping and delamination.
  • the invention has industrial applicability.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Earth Drilling (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

一种用于油气钻探的多功能非平面聚晶金刚石复合片，包括聚晶金刚石层（100）以及与聚晶金刚石层（100）相粘结的硬质合金基体（200）；聚晶金刚石层（100）为非平面结构，其是由两曲面（101、101'）间以及两曲面（101、101'）与外缘表面（300）间以一定角度所构成的曲面；两曲面（101、101'）间以一定的角度构成锋利切削刃齿（104），两曲面（101、101'）与外缘表面（300）间以一定的角度构成宽钝凸起切削刃齿（103）。

Description

一种用于油气钻探的多功能非平面聚晶金刚石复合片 技术领域
本发明属于超硬复合材料技术领域，其主要涉及油气钻探、工程掘进、探矿用工具及设备等等，尤其涉及一种用于油气钻探的多功能非平面聚晶金刚石复合片。
 背景技术
聚晶金刚石复合片是将优质的金刚石微粉与硬质合金基体经高温高压工艺烧结制备而成，其兼顾了金刚石的高硬度高耐磨以及硬质合金的高抗冲击的综合性能。目前，聚晶金刚石复合片以其优异的综合性能被认为是理想的钻进材料，在石油、天然气等钻探中是重要的支撑性材料。然而，随着钻探理念的革新，极需求更优异的聚晶金刚石复合片适用于更为复杂、较深地层钻探的应用。本领域技术人员及制造商改善聚晶金刚石复合片性能的方法各不相同，而通过调整聚晶金刚石复合片的聚晶层结构是提高综合性能的重要途径之一。
专利201520471001.4公开一种低切削阻力曲面结构聚晶金刚石复合片，其解决了复杂地层的钻进效率，但利用率及排屑效果并不理想。专利201521102644.8公开一种多刃异形结构聚晶金刚石复合片，其解决了复杂地层的钻进效率及利用率，但存在排屑通道不畅等问题。鉴于上述问题，本发明提出一种用于油气钻探的多功能非平面聚晶金刚石复合片，不但为解决复杂难钻进地层提供可行性方案，而且实现排屑通道顺畅以及不同岩层提供针对性解决方案，实现一齿多地层应用，大大改善金刚石钻头选齿、地层选齿复杂化问题，可针对不同硬质地层为客户提供双重选择。
 技术问题
本发明的目的在于通过改善聚晶金刚石复合片的聚晶层表面结构，提供一种高利用率、高效排屑且单一选齿解决不同地层钻进的多功能非平面聚晶金刚石复合片，使得此多功能非平面聚晶复合片在钻进复杂地层变得简单化，且大幅度提高金刚石钻头寿命、降低钻井综合成本。
 技术解决方案
为实现上述目的，本发明采用的技术方案为：
一种用于油气钻探的多功能非平面聚晶金刚石复合片，其包括聚晶金刚石层及与聚晶金刚石层相粘结的硬质合金基体；其中，所述聚晶金刚石层是非平面结构，所述非平面结构是由两曲面间以及两曲面与外缘表面间以一定角度所构成的曲面；所述两曲面间以一定角度构成的锋利切削刃齿，此角度范围为10°~179°。
进一步，所述两曲面以弧面或非弧面过渡相连接。
进一步，所述两曲面与外缘表面间以一定角度构成的宽钝凸起切削刃齿，此角度范围为10°~179°。
进一步，所述宽钝凸起切削刃齿的角度范围为10°~179°。
进一步，所述非平面聚晶金刚石层设有倒角或无倒角。
进一步，所述非平面聚晶金刚石层采用一次烧结成型法制备，比如高温高压烧结成型法等。
进一步，所述非平面聚晶金刚石层采用接触式加工、非接触式加工成型法或及其组合，比如电火花加工成型法、激光加工成型法等。
 有益效果
本发明提供一种结构简单、高利用率、高效排屑且单一选齿解决不同地层钻进的多功能非平面聚晶金刚石复合片。在实际油气钻探过程中，利用此类多功能非平面聚晶金刚石复合片作为支撑材料，其结构以曲面形成排屑通道且同时存在锋利切削刃齿和宽钝凸起切削刃齿可针对不同岩层钻进等等，锋利切削刃齿可利用其尖端刃齿部位应用于极硬的复杂地层，快速破岩、提高钻进效率；宽钝凸起的切削刃齿可应用于较软地层，利用其刃齿形状挖掘大块岩层、提高钻进效率，同时该复合片布局均还有双重刃齿，可重复使用、降低成本等。另一方面，此非平面结构不存在应力集中区域亦可大大降低聚晶金刚石复合片在应用中出现的崩齿、脱层等严重失效现象。
 附图说明
图1是本发明中实施例的结构示意图；
图2是图1的左视图。
 本发明的最佳实施方式
为了更清楚地理解本发明，下面将结合实施例进一步阐明本发明的内容，但本发明的内容不仅局限于下面的实施例。基于本发明中实施例，本领域普通技术人员在没有做出创造性劳动前体下所获得其它所有实施例，均将属于本发明保护的范畴。
如图1和图2所示，本发明包括聚晶金刚石层100及与其相粘结的硬质合金基体200，聚晶金刚石层100为非平面结构，其是由两曲面101、101’间和两曲面101、101’与外缘表面300间以一定角度构成的曲面。两曲面101、101’以一定角度构成锋利切削刃齿104，而两曲面101、101’与外缘表面300间以一定角度构成宽钝凸起切削刃齿103。此非平面聚晶金刚石层设有倒角102。
 本发明的实施方式
本实施例中选取的多功能非平面聚晶金刚石复合片的直径为15.88 mm、高度为13.2 mm。此多功能聚晶金刚石层采用高温高压烧结成型法结合激光加工成型法制备而成，其中两曲面构成的锋利切削刃齿夹角为148.5°，两曲面与外缘表面以68.9°构成宽钝凸起切削刃齿的夹角为169.3°。非平面聚晶金刚石层倒角为0.56 mm，最低聚晶金刚石层厚度约为2.0 mm。此多功能聚晶金刚石复合片与对照组（同规格的传统平面结构聚晶金刚石复合片）进行实验室对比试验。
对比测试结果表明，相对于传统平面结构聚晶金刚石复合片，此多功能非平面聚晶金刚石复合片利用锋利切削刃齿磨削洛氏硬度8-9级岩石时，切削阻力降低38 %、岩石去除效率提高56 %，且未出现崩齿、脱层等失效现象。
对比测试结果表明，相对于传统平面结构聚晶金刚石复合片，此多功能非平面聚晶金刚石复合片利用宽钝凸起切削刃齿磨削洛氏硬度6级左右岩石时，在相同磨削载荷力条件下岩石去除效率提高83 %，且未出现崩齿、脱层等失效现象。
以上所述仅为本发明的优选实施例，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明的技术方案前提下，还可做出若干修改或等同替代，这均视为本发明的保护范畴。
 工业实用性
本发明具有工业实用性。

Claims (7)

  1. 一种用于油气钻探的多功能非平面聚晶金刚石复合片，其特征在于：包括聚晶金刚石层及与聚晶金刚石层相粘结的硬质合金基体；其中，所述聚晶金刚石层是非平面结构，所述非平面结构是由两曲面间以及两曲面与外缘表面间以一定角度所构成的曲面；所述两曲面间以一定角度构成的锋利切削刃齿，此角度范围为10°~179°。
  2. 根据权利要求1所述的一种用于油气钻探的多功能非平面聚晶金刚石复合片，其特征在于：所述两曲面以弧面或非弧面过渡相连接。
  3. 根据权利要求1所述的一种用于油气钻探的多功能非平面聚晶金刚石复合片，其特征在于：所述两曲面与外缘表面间以一定角度构成的宽钝凸起切削刃齿，此角度范围为10°~179°。
  4. 根据权利要求1所述的一种用于油气钻探的多功能非平面聚晶金刚石复合片，其特征在于：所述宽钝凸起切削刃齿的角度范围为10°~179°。
  5. 根据权利要求1所述的一种用于油气钻探的多功能非平面聚晶金刚石复合片，其特征在于：所述非平面聚晶金刚石层设有倒角或无倒角。
  6. 根据权利要求1所述的一种用于油气钻探的多功能非平面聚晶金刚石复合片，其特征在于：所述非平面聚晶金刚石层采用一次烧结成型法制备，比如高温高压烧结成型法等。
  7. 根据权利要求1所述的一种用于油气钻探的多功能非平面聚晶金刚石复合片，其特征在于：所述非平面聚晶金刚石层采用接触式加工、非接触式加工成型法或及其组合，比如电火花加工成型法、激光加工成型法等。
     
PCT/CN2017/118761 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 WO2019075917A1 (zh)

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US11873684B2 (en) * 2017-03-14 2024-01-16 Sf Diamond Co., Ltd. Polycrystalline diamond compact
USD924949S1 (en) 2019-01-11 2021-07-13 Us Synthetic Corporation Cutting tool
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
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