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1. 发明授权

US07568534B2 Dual-edge working surfaces for polycrystalline diamond cutting elements 有权
标题翻译：用于多晶金刚石切割元件的双边工作表面
公开(公告)号：US07568534B2
公开(公告)日：2009-08-04
申请号：US12037312
申请日：2008-02-26
申请人： Nigel Dennis Griffin , Peter Raymond Hughes , Andrew Bell
发明人： Nigel Dennis Griffin , Peter Raymond Hughes , Andrew Bell
IPC分类号： E21B7/00
CPC分类号： E21B10/567
摘要： A polycrystalline diamond cutting element for earth boring drill bits presents regions of different abrasion resistance to the earthen formation when in operation. The cutting element has an end working surface and a region which is substantially free of catalyzing material, forming a layer. In operation, this layer wears at a different rate than the underlying material causing a pair of protruding lips to form. The end working surface may be substantially planar or frusto-conical in form.
摘要翻译：用于镗孔钻头的多晶金刚石切割元件在操作时呈现出与土层形成不同的耐磨性的区域。切割元件具有端部工作表面和基本上不含催化材料的区域，形成层。在操作中，该层以与底层材料不同的速率磨损，导致形成一对突出的唇缘。端部工作表面可以是基本上平面的或截头圆锥形的。

2. 发明申请

US20080142275A1 Dual-Edge Working Surfaces for Polycrystalline Diamond Cutting Elements 有权
标题翻译：用于多晶金刚石切割元件的双刃加工面
公开(公告)号：US20080142275A1
公开(公告)日：2008-06-19
申请号：US12037312
申请日：2008-02-26
申请人： Nigel Dennis Griffin , Peter Raymond Hughes , Andrew Bell
发明人： Nigel Dennis Griffin , Peter Raymond Hughes , Andrew Bell
IPC分类号： E21B10/43
CPC分类号： E21B10/567
摘要： A polycrystalline diamond cutting element for earth boring drill bits presents regions of different abrasion resistance to the earthen formation when in operation. The cutting element has an end working surface and a region which is substantially free of catalyzing material, forming a layer. In operation, this layer wears at a different rate than the underlying material causing a pair of protruding lips to form. The end working surface may be substantially planar or frusto-conical in form.
摘要翻译：用于镗孔钻头的多晶金刚石切割元件在操作时呈现出与土层形成不同的耐磨性的区域。切割元件具有端部工作表面和基本上不含催化材料的区域，形成层。在操作中，该层以与底层材料不同的速率磨损，导致形成一对突出的唇缘。端部工作表面可以是基本上平面的或截头圆锥形的。

3. 发明申请

US20080142267A1 Multi-Edge Working Surfaces for Polycrystalline Diamond Cutting Elements 审中-公开
标题翻译：多晶金刚石切割元件的多边工作面
公开(公告)号：US20080142267A1
公开(公告)日：2008-06-19
申请号：US12038309
申请日：2008-02-27
申请人： Nigel Dennis Griffin , Peter Raymond Hughes , Andrew Bell
发明人： Nigel Dennis Griffin , Peter Raymond Hughes , Andrew Bell
IPC分类号： E21B10/52
CPC分类号： E21B10/567
摘要： A polycrystalline diamond cutting element for earth boring drill bits presents at least three regions of different abrasion resistance to the earthen formation when in operation. The cutting element has an end working surface and the regions, which are substantially free of catalyzing material, form a series of at least three layers. In operation, these layers wear at different rates causing a series of protruding lips. The end working surface may be substantially planar or frusto-conical in form.
摘要翻译：用于钻凿钻头的多晶金刚石切割元件在操作时呈现出与土层形成不同的耐磨性的至少三个区域。切割元件具有端部工作表面，并且基本上不含催化材料的区域形成一系列至少三层。在操作中，这些层以不同的速率磨损，导致一系列突出的嘴唇。端部工作表面可以是基本上平面的或截头圆锥形的。

4. 发明授权

US06861098B2 Polycrystalline diamond partially depleted of catalyzing material 有权
标题翻译：多晶金刚石部分耗尽催化材料
公开(公告)号：US06861098B2
公开(公告)日：2005-03-01
申请号：US10605471
申请日：2003-10-01
申请人： Nigel Dennis Griffin , Peter Raymond Hughes
发明人： Nigel Dennis Griffin , Peter Raymond Hughes
IPC分类号： B22F7/06 , B23B27/14 , C04B35/52 , C04B37/02 , C04B41/45 , C04B41/53 , C04B41/81 , C04B41/91 , E21B7/06 , E21B7/18 , E21B10/00 , E21B10/42 , E21B10/43 , E21B10/56 , E21B10/567 , E21B10/573 , E21B10/60 , E21B21/10 , F16C33/04 , B05D1/40
CPC分类号： E21B10/567 , C04B37/021 , Y10T407/27 , Y10T428/12493 , Y10T428/12625 , Y10T428/24942 , Y10T428/26 , Y10T428/265 , Y10T428/30
摘要： A method for forming a superhard polycrystalline diamond or diamond-like element with greatly improved resistance to thermal degradation without loss of impact strength. Collectively called PCD elements, these elements are formed with a binder-catalyzing material in a high-temperature, high-pressure process. The PCD element has a plurality of partially bonded diamond or diamond-like crystals forming at least one continuous diamond matrix, and the interstices among the diamond crystals forming at least one continuous interstitial matrix containing a catalyzing material. The element has a working surface and a body, where a portion of the interstitial matrix in the body adjacent to the working surface is substantially free of the catalyzing material to a depth from the working surface, the remaining interstitial matrix contains the catalyzing material, causing a 950 degrees C. temperature at the working surface to be less than 750 degrees C. at the depth.
摘要翻译：用于形成超硬多晶金刚石或类金刚石元件的方法，其具有大大提高的耐热降解性而不损失冲击强度。统称为PCD元件，这些元件在高温高压工艺中由粘合剂催化材料形成。 PCD元件具有形成至少一个连续金刚石基体的多个部分结合的金刚石或类金刚石晶体，并且金刚石晶体之间的间隙形成至少一个含有催化材料的连续间隙基质。该元件具有工作表面和主体，其中与工作表面相邻的主体中的间隙基质的一部分基本上没有催化材料到工作表面的深度，剩余的间隙基质含有催化材料，导致在工作表面的950摄氏度的温度在深度小于750摄氏度。

5. 发明授权

US06962214B2 Rotary seal for directional drilling tools 失效
标题翻译：定向钻具旋转密封
公开(公告)号：US06962214B2
公开(公告)日：2005-11-08
申请号：US09683358
申请日：2001-12-18
申请人： Peter Raymond Hughes , Nigel Dennis Griffin , Mark A. Colebrook
发明人： Peter Raymond Hughes , Nigel Dennis Griffin , Mark A. Colebrook
IPC分类号： B22F7/06 , B23B27/14 , C04B35/52 , C04B37/02 , C04B41/45 , C04B41/53 , C04B41/81 , C04B41/91 , E21B7/06 , E21B7/08 , E21B7/18 , E21B10/00 , E21B10/42 , E21B10/43 , E21B10/50 , E21B10/54 , E21B10/55 , E21B10/56 , E21B10/567 , E21B10/573 , E21B10/60 , E21B21/10 , F16C33/04 , E21B34/08
CPC分类号： C04B41/91 , B22F7/06 , B22F2005/001 , B22F2998/00 , B22F2999/00 , B23B27/145 , C04B35/52 , C04B41/459 , C04B41/53 , C04B41/81 , E21B21/10 , E21B2010/566 , F16K25/005 , B22F2207/03 , B22F1/0014 , C22C26/00
摘要： A rotary valve assembly for a rotary steerable tool is disclosed for directing flow of an abrasive laden drilling fluid; the valve assembly has a first sealing surface rotatably engaging a second sealing surface. At least one of the surfaces has at least about 5% of its area comprising interconnecting voids to an average depth of at least 0.02 mm. The interconnected voids allow fluid pressure to equalize between the sealing faces by flowing through the interconnecting voids to the sealing surfaces. Because the fit of the sealing surfaces of the valve is less than perfect, and because the voids on mating surfaces do not necessarily overlap, the 5% of the surface area comprising interconnected voids can easily translate to a 10% or more reduction in sealed area when both sealing surfaces have the interconnecting voids. The additional reduction in surface area subjected to differential pressure has substantially eliminated the hydraulic lock problem previously encountered upon startup.
摘要翻译：公开了一种用于旋转可操纵工具的旋转阀组件，用于引导含磨料的钻井液的流动; 阀组件具有可旋转地接合第二密封表面的第一密封表面。至少一个表面具有至少约5％的其面积包括相互连接的空隙，平均深度至少为0.02mm。互连的空隙允许流体压力通过流过互连空隙到密封表面在密封面之间相等。因为阀的密封表面的配合不完美，并且由于配合表面上的空隙不一定重叠，所以包括相互连接的空隙的表面积的5％可以容易地转化为10％或更多的密封面积的减小当两个密封表面都具有相互连接的空隙时。经受差压的表面积的额外减小基本上消除了起动时先前遇到的液压锁定问题。

6. 发明授权

US06878447B2 Polycrystalline diamond partially depleted of catalyzing material 有权
标题翻译：多晶金刚石部分耗尽催化材料
公开(公告)号：US06878447B2
公开(公告)日：2005-04-12
申请号：US10604007
申请日：2003-06-20
申请人： Nigel Dennis Griffin , Peter Raymond Hughes
发明人： Nigel Dennis Griffin , Peter Raymond Hughes
IPC分类号： B22F7/06 , B23B27/14 , C04B35/52 , C04B37/02 , C04B41/45 , C04B41/53 , C04B41/81 , C04B41/91 , E21B7/06 , E21B7/18 , E21B10/00 , E21B10/42 , E21B10/43 , E21B10/56 , E21B10/567 , E21B10/573 , E21B10/60 , E21B21/10 , F16C33/04 , B32B9/00
CPC分类号： E21B10/567 , C04B37/021 , Y10T407/27 , Y10T428/12493 , Y10T428/12625 , Y10T428/24942 , Y10T428/26 , Y10T428/265 , Y10T428/30
摘要： The present invention provides a superhard polycrystalline diamond or diamond-like element with greatly improved resistance to thermal degradation without loss of impact strength. Collectively called PCD elements, these elements are formed with a binder-catalyzing material in a high-temperature, high-pressure process. The PCD element has a plurality of partially bonded diamond or diamond-like crystals forming at least one continuous diamond matrix, and the interstices among the diamond crystals forming at least one continuous interstitial matrix containing a catalyzing material. The element has a working surface and a body, where a portion of the interstitial matrix in the body adjacent to the working surface is substantially free of the catalyzing material, and the remaining interstitial matrix contains the catalyzing material. This translates to higher wear resistance in cutting applications, higher heat transfer capacity in heat sink applications, and has advantages in numerous other applications including hollow dies, indentors, tool mandrels, and wear elements.
摘要翻译：本发明提供了超硬多晶金刚石或类金刚石元件，其具有大大提高的抗热降解性，而不损失冲击强度。统称为PCD元件，这些元件在高温高压工艺中由粘合剂催化材料形成。 PCD元件具有形成至少一个连续金刚石基体的多个部分结合的金刚石或类金刚石晶体，并且金刚石晶体之间的间隙形成至少一个含有催化材料的连续间隙基质。元件具有工作表面和主体，其中与工作表面相邻的主体中的间隙基质的一部分基本上不含催化材料，而剩余的间隙基质含有催化材料。这意味着切割应用中的耐磨性更高，散热片应用中的传热能力更强，并且在许多其他应用中具有优点，包括中空模具，压头，工具心轴和磨损元件。

7. 发明授权

US06481511B2 Rotary drill bit 有权
公开(公告)号：US06481511B2
公开(公告)日：2002-11-19
申请号：US09682471
申请日：2001-09-06
申请人： Terry R. Matthias , Nigel Dennis Griffin , Peter Raymond Hughes
发明人： Terry R. Matthias , Nigel Dennis Griffin , Peter Raymond Hughes
IPC分类号： E21B1046
CPC分类号： B22F7/06 , B22F2003/244 , B22F2005/001 , B22F2998/00 , B22F2999/00 , C04B35/52 , C04B35/645 , C04B37/021 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/405 , C04B2235/427 , C04B2235/442 , C04B2237/363 , C04B2237/401 , E21B10/567 , F16C33/043 , F16C2206/04 , Y10T407/27 , Y10T428/12493 , Y10T428/12625 , Y10T428/24942 , Y10T428/26 , Y10T428/265 , Y10T428/30 , B22F2207/03 , B22F1/0014 , C22C26/00
摘要： A rotary drill bit includes cutters arranged in a series of concentric rings, the cutters of one of the rings having a different wear resistance to the cutters of another of the rings with the result that the stability of the drill bit improves with wear. Although the wear resistance is different, the cutters have substantially the same impact toughness.

8. 发明授权

US06435058B1 Rotary drill bit design method 有权
公开(公告)号：US06435058B1
公开(公告)日：2002-08-20
申请号：US09682466
申请日：2001-09-06
申请人： Terry R. Matthias , Nigel Dennis Griffin , Peter Raymond Hughes
发明人： Terry R. Matthias , Nigel Dennis Griffin , Peter Raymond Hughes
IPC分类号： B21K504
CPC分类号： B22F7/06 , B22F2003/244 , B22F2005/001 , B22F2998/00 , B22F2999/00 , C04B35/52 , C04B35/645 , C04B37/021 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/405 , C04B2235/427 , C04B2235/442 , C04B2237/363 , C04B2237/401 , E21B10/567 , F16C33/043 , F16C2206/04 , Y10T407/27 , Y10T428/12493 , Y10T428/12625 , Y10T428/24942 , Y10T428/26 , Y10T428/265 , Y10T428/30 , B22F2207/03 , B22F1/0014 , C22C26/00
摘要： A method for use in designing rotary drill bits comprises determining locations in which cutters are to be provided, determining likely wear rates for cutters positioned at those locations, and using the likely wear rates to chose between relatively high and relatively low wear rate cutters for each location. The cutters all have substantially the same impact toughness.

9. 发明授权

US06749033B2 Polycrystalline diamond partially depleted of catalyzing material 有权
标题翻译：多晶金刚石部分耗尽催化材料
公开(公告)号：US06749033B2
公开(公告)日：2004-06-15
申请号：US10065600
申请日：2002-11-01
申请人： Nigel Dennis Griffin , Peter Raymond Hughes
发明人： Nigel Dennis Griffin , Peter Raymond Hughes
IPC分类号： E21B1046
CPC分类号： E21B10/567 , C04B37/021 , Y10T407/27 , Y10T428/12493 , Y10T428/12625 , Y10T428/24942 , Y10T428/26 , Y10T428/265 , Y10T428/30
摘要： The present invention provides a superhard polycrystalline diamond or diamond-like element with greatly improved resistance to thermal degradation without loss of impact strength. Collectively called PCD elements, these elements are formed with a binder-catalyzing material in a high-temperature, high-pressure process. The PCD element has a plurality of partially bonded diamond or diamond-like crystals forming at least one continuous diamond matrix, and the interstices among the diamond crystals forming at least one continuous interstitial matrix containing a catalyzing material. The element has a working surface and a body, where a portion of the interstitial matrix in the body adjacent to the working surface is substantially free of the catalyzing material, and the remaining interstitial matrix contains the catalyzing material. This translates to higher wear resistance in cutting applications, higher heat transfer capacity in heat sink applications, and has advantages in numerous other applications including hollow dies, indentors, tool mandrels, and wear elements.
摘要翻译：本发明提供了超硬多晶金刚石或类金刚石元件，其具有大大提高的抗热降解性，而不损失冲击强度。统称为PCD元件，这些元件在高温高压工艺中由粘合剂催化材料形成。 PCD元件具有形成至少一个连续金刚石基体的多个部分结合的金刚石或类金刚石晶体，并且金刚石晶体之间的间隙形成至少一个含有催化材料的连续间隙基质。元件具有工作表面和主体，其中与工作表面相邻的主体中的间隙基质的一部分基本上不含催化材料，而剩余的间隙基质含有催化材料。这意味着切割应用中的耐磨性更高，散热片应用中的传热能力更强，并且在许多其他应用中具有优点，包括中空模具，压头，工具心轴和磨损元件。

10. 发明授权

US06589640B2 Polycrystalline diamond partially depleted of catalyzing material 有权
公开(公告)号：US06589640B2
公开(公告)日：2003-07-08
申请号：US10065602
申请日：2002-11-01
申请人： Nigel Dennis Griffin , Peter Raymond Hughes
发明人： Nigel Dennis Griffin , Peter Raymond Hughes
IPC分类号： B32B900
CPC分类号： E21B10/567 , C04B37/021 , Y10T407/27 , Y10T428/12493 , Y10T428/12625 , Y10T428/24942 , Y10T428/26 , Y10T428/265 , Y10T428/30
摘要： The present invention provides a superhard polycrystalline diamond or diamond-like element with greatly improved resistance to thermal degradation without loss of impact strength. Collectively called PCD elements, these elements are formed with a binder-catalyzing material in a high-temperature, high-pressure process. The PCD element has a plurality of partially bonded diamond or diamond-like crystals forming at least one continuous diamond matrix, and the interstices among the diamond crystals forming at least one continuous interstitial matrix containing a catalyzing material. The element has a working surface and a body, where a portion of the interstitial matrix in the body adjacent to the working surface is substantially free of the catalyzing material, and the remaining interstitial matrix contains the catalyzing material. This translates to higher wear resistance in cutting applications, higher heat transfer capacity in heat sink applications, and has advantages in numerous other applications including hollow dies, indentors, tool mandrels, and wear elements.

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