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公开(公告)号：US11313176B2
公开(公告)日：2022-04-26
申请号：US16175920
申请日：2018-10-31
IPC分类号： E21B10/54 , E21B10/32 , E21B29/00 , E21B10/42 , B33Y70/00 , B33Y80/00 , C22C32/00 , B23K103/18 , B33Y10/00 , B23K101/00 , B23K15/00 , B22F5/00
摘要： A downhole cutting tool includes a tool body with a cutting element or cutting element pocket thereon. At least a portion of the tool body or an attachment thereto is a metal matrix composite formed from metal carbide particles dispersed in a continuous metal matrix. The metal carbide particles make up less than 45 wt % of the metal matrix composite and/or less than 30 vol % of the metal matrix composite. The continuous metal matrix may also be formed from a metal or metal alloy other than Ni—Si—B and/or have a transverse rupture strength greater than 150 ksi and a fracture toughness over 22 ksi*in0.5.
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公开(公告)号：US10309156B2
公开(公告)日：2019-06-04
申请号：US14206280
申请日：2014-03-12
IPC分类号： E21B10/567 , E21B10/43 , E21B10/55
摘要： A cutting tool may include a tool body, blades extending from the tool body, and primary cutting elements and backup cutting elements are on each of blades. The backup cutting elements may be behind and at approximately the same radial distance from the axis of the tool body as a corresponding primary cutting element, where the primary cutting elements include cutting elements having a first non-planar shape and the backup cutting elements include cutting elements having a second, different non-planar shape.
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3.发明申请公开(公告)号：US20190136636A1
公开(公告)日：2019-05-09
申请号：US16240877
申请日：2019-01-07
IPC分类号： E21B10/573 , E21B10/567 , E21B10/52 , E21B10/55 , B24D3/06 , B24D18/00
摘要： A cutting element may include a substrate including a plurality of metal carbide particles and a first metal binder having a first metal binder content; an outer layer of polycrystalline diamond material at an end of the cutting element, the polycrystalline diamond material including a plurality of interconnected diamond particles; and a plurality of interstitial regions disposed among the interconnected diamond particles, the plurality of interstitial regions containing a second metal binder having a second metal binder content. The cutting element also includes at least one transition zone between the substrate and the outer layer, the at least one transition zone including a plurality of refractory metal carbide particles and a third metal binder having a third metal binder content, the third metal binder content being less than the first metal binder content and the second metal binder content.
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4.发明授权Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance 有权具有改善的耐磨性，热稳定性和耐冲击性的多晶金刚石材料公开(公告)号：US08852546B2
公开(公告)日：2014-10-07
申请号：US13676070
申请日：2012-11-13
CPC分类号： E21B10/55 , B01J3/06 , B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/0685 , B24D3/10 , B24D18/0009 , C01B32/25 , E21B10/567 , E21B2010/563 , Y10T428/30
摘要： PCD materials comprise a diamond body having bonded diamond crystals and interstitial regions disposed among the crystals. The diamond body is formed from diamond grains and a catalyst material at high pressure/high temperature conditions. The diamond grains have an average particle size of about 0.03 mm or greater. At least a portion of the diamond body has a high diamond volume content of greater than about 93 percent by volume. The entire diamond body can comprise high volume content diamond or a region of the diamond body can comprise the high volume content diamond. The diamond body includes a working surface, a first region substantially free of the catalyst material, and a second region that includes the catalyst material. At least a portion of the first region extends from the working surface to depth of from about 0.01 to about 0.1 mm.
摘要翻译： PCD材料包括具有结合的金刚石晶体和布置在晶体之间的间隙区域的金刚石体。 金刚石体在高压/高温条件下由金刚石晶粒和催化剂材料形成。 金刚石晶粒的平均粒径为约0.03mm以上。 金刚石体的至少一部分具有大于约93体积％的高金刚石体积含量。 整个钻石体可以包括高体积的钻石，或者金刚石体的区域可以包括高体积的钻石。 金刚石体包括工作表面，基本上不含催化剂材料的第一区域和包括催化剂材料的第二区域。 第一区域的至少一部分从工作表面延伸至约0.01至约0.1mm的深度。
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公开(公告)号：US20190128072A1
公开(公告)日：2019-05-02
申请号：US16175920
申请日：2018-10-31
摘要： A downhole cutting tool includes a tool body with a cutting element or cutting element pocket thereon. At least a portion of the tool body or an attachment thereto is a metal matrix composite formed from metal carbide particles dispersed in a continuous metal matrix. The metal carbide particles make up less than 45 wt % of the metal matrix composite and/or less than 30 vol % of the metal matrix composite. The continuous metal matrix may also be formed from a metal or metal alloy other than Ni—Si—B and/or have a transverse rupture strength greater than 150 ksi and a fracture toughness over 22 ksi*in0.5.
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公开(公告)号：US10174561B2
公开(公告)日：2019-01-08
申请号：US14533716
申请日：2014-11-05
IPC分类号： E21B10/573 , E21B10/55 , E21B10/567 , B24D3/06 , B24D18/00 , E21B10/52
摘要： A cutting element may include a substrate including a plurality of metal carbide particles and a first metal binder having a first metal binder content; an outer layer of polycrystalline diamond material at an end of the cutting element, the polycrystalline diamond material including a plurality of interconnected diamond particles; and a plurality of interstitial regions disposed among the interconnected diamond particles, the plurality of interstitial regions containing a second metal binder having a second metal binder content. The cutting element also includes at least one transition zone between the substrate and the outer layer, the at least one transition zone including a plurality of refractory metal carbide particles and a third metal binder having a third metal binder content, the third metal binder content being less than the first metal binder content and the second metal binder content.
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公开(公告)号：US09033070B2
公开(公告)日：2015-05-19
申请号：US14456436
申请日：2014-08-11
发明人： Yuelin Shen , Youhe Zhang , Zhou Yong , Jiaqing Yu , Madapusi K. Keshavan
IPC分类号： E21B10/62 , E21B10/52 , E21B10/567 , E21B10/573
CPC分类号： E21B10/52 , E21B10/5673 , E21B10/573 , Y10T29/49947 , Y10T29/49963
摘要： A cutting element for a drill bit includes an outer support element and an inner rotatable cutting element, a portion of which is disposed in the outer support element, where the inner rotatable cutting element has a body with a non-planar cutting face.
摘要翻译： 用于钻头的切割元件包括外部支撑元件和内部可旋转切割元件，其一部分设置在外部支撑元件中，其中内部可旋转切割元件具有非平面切割面的主体。
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8.发明申请POLYCRYSTALLINE DIAMOND MATERIALS HAVING IMPROVED ABRASION RESISTANCE, THERMAL STABILITY AND IMPACT RESISTANCE 有权具有改善耐磨性，耐热稳定性和耐冲击性的多晶金刚石材料公开(公告)号：US20130067827A1
公开(公告)日：2013-03-21
申请号：US13676070
申请日：2012-11-13
IPC分类号： B01J3/06
CPC分类号： E21B10/55 , B01J3/06 , B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/0685 , B24D3/10 , B24D18/0009 , C01B32/25 , E21B10/567 , E21B2010/563 , Y10T428/30
摘要： PCD materials comprise a diamond body having bonded diamond crystals and interstitial regions disposed among the crystals. The diamond body is formed from diamond grains and a catalyst material at high pressure/high temperature conditions. The diamond grains have an average particle size of about 0.03 mm or greater. At least a portion of the diamond body has a high diamond volume content of greater than about 93 percent by volume. The entire diamond body can comprise high volume content diamond or a region of the diamond body can comprise the high volume content diamond. The diamond body includes a working surface, a first region substantially free of the catalyst material, and a second region that includes the catalyst material. At least a portion of the first region extends from the working surface to depth of from about 0.01 to about 0.1 mm
摘要翻译： PCD材料包括具有结合的金刚石晶体和布置在晶体之间的间隙区域的金刚石体。 金刚石体在高压/高温条件下由金刚石晶粒和催化剂材料形成。 金刚石晶粒的平均粒径为约0.03mm以上。 金刚石体的至少一部分具有大于约93体积％的高金刚石体积含量。 整个钻石体可以包括高体积的钻石，或者金刚石体的区域可以包括高体积的钻石。 金刚石体包括工作表面，基本上不含催化剂材料的第一区域和包括催化剂材料的第二区域。 第一区域的至少一部分从工作表面延伸至约0.01至约0.1mm的深度
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9.发明授权公开(公告)号：US10287825B2
公开(公告)日：2019-05-14
申请号：US14613144
申请日：2015-02-03
发明人： Chen Chen , Huimin Song , Liang Zhao , Youhe Zhang , Michael G. Azar , Xiaoge Gan , Madapusi K. Keshavan , Zhijun Lin , Bala Durairajan , Michael L. Stewart
IPC分类号： E21B10/56 , E21B10/567 , E21B10/573
摘要： A cutting element may include a substrate, an upper surface of the substrate including a crest, the crest transitioning into a depressed region, and an ultrahard layer on the upper surface, thereby forming a non-planar interface between the ultrahard layer and the substrate. A top surface of the ultrahard layer includes a cutting crest extending along at least a portion of a diameter of the cutting element, the top surface having a portion extending laterally away from the cutting crest having a lesser height than a peak of the cutting crest.
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公开(公告)号：US10267095B2
公开(公告)日：2019-04-23
申请号：US15131186
申请日：2016-04-18
发明人： Madapusi K. Keshavan
摘要： A carbide composite for a downhole tool may be formed by depositing a first layer on a substrate, and a second layer at least partially adjacent to the first layer. The first and second layers may each include carbides, metal binders, organic binders, or a combination thereof. The first and second carbide layers may have a different particle size, particle shape, carbide concentration, metal binder concentration, or organic binder concentration from one another.
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