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1. 发明授权

US07946362B2 Matrix drill bits with back raked cutting elements 有权
标题翻译：带背面切削元件的矩阵钻头
公开(公告)号：US07946362B2
公开(公告)日：2011-05-24
申请号：US11687472
申请日：2007-03-16
申请人： Nuno Da Silva , Valérie Sillen , Nicolas Luyckx
发明人： Nuno Da Silva , Valérie Sillen , Nicolas Luyckx
IPC分类号： E21B10/54
CPC分类号： E21B10/42
摘要： A matrix drill bit and method of manufacturing a matrix bit having back raked cutting elements is disclosed. In one aspect, a matrix drill bit for well drilling includes a matrix bit body that has a front area in a direction of drilling and two or more diamond impregnated cutting blades protruding from the front area of the matrix bit body. The cutting blades each have a front external surface protruding from the front area of the matrix bit body and present a plurality of back raked downhole interface surfaces in the direction of drilling. The downhole interface surfaces span a leading face and a trailing face where the leading face extends to a first height and the trailing face extends to a second height and the first height is greater than the second height.
摘要翻译：公开了一种矩阵钻头和制造具有背斜切割元件的矩阵钻头的方法。在一个方面，用于钻井的矩阵钻头包括矩阵钻头体，其具有在钻孔方向上的前区域和从矩阵钻头体的前部区域突出的两个或多个金刚石浸渍切割刀片。切割刀片各自具有从矩阵钻头体的前部区域突出的前部外表面，并在钻孔方向上呈现多个后倾的井下界面表面。井下接口表面跨越前导面和后表面，其中前表面延伸到第一高度，并且后表面延伸到第二高度，并且第一高度大于第二高度。

2. 发明授权

US07621349B2 Drill bit with a fixed cutting structure 有权
标题翻译：钻头采用固定切割结构
公开(公告)号：US07621349B2
公开(公告)日：2009-11-24
申请号：US11816808
申请日：2005-02-23
申请人： Nuno Da Silva , Nicolas Luyckx
发明人： Nuno Da Silva , Nicolas Luyckx
IPC分类号： E21B21/00 , E21B10/36
CPC分类号： E21B10/602
摘要： The invention concerns a drill bit (1) with stationary cutting structure, comprising a tool body (2) and several blades (3), which consist of a metal matrix impregnated with abrasive particles, and which are fixed to the tool body while extending forward therefrom, said blades (3) forming jointly a front cutting surface (7), and having radial channels (4) for drilling fluid which mutually separate the blades (3) and are open outwards. The invention is characterized in that it further comprises, through at least one radial fluid channel (2) arranged between two said blades (3), at least one bridge (6, 6′, 6″) which connects said two blades, by being arranged between the tool body (2) and said front cutting surface (7).
摘要翻译：本发明涉及具有静止切割结构的钻头（1），其包括工具主体（2）和多个叶片（3），其由浸渍有磨料颗粒的金属基体组成，并且固定在工具本体上同时向前延伸所述叶片（3）共同形成前切割表面（7），并且具有用于钻出流体的径向通道（4），所述径向通道相互分离叶片（3）并向外敞开。本发明的特征在于，其还包括通过布置在两个所述叶片（3）之间的至少一个径向流体通道（2），至少一个连接所述两个叶片的桥（6,6'，6“），其通过布置在工具主体（2）和所述前切割表面（7）之间。

3. 发明申请

US20080135306A1 Drill Bit With A Fixed Cutting Structure 有权
标题翻译：钻头与固定切割结构
公开(公告)号：US20080135306A1
公开(公告)日：2008-06-12
申请号：US11816808
申请日：2005-02-23
申请人： Nuno Da Silva , Nicolas Luyckx
发明人： Nuno Da Silva , Nicolas Luyckx
IPC分类号： E21B10/60
CPC分类号： E21B10/602
摘要： The invention concerns a drill bit (1) with stationary cutting structure, comprising a tool body (2) and several blades (3), which consist of a metal matrix impregnated with abrasive particles, and which are fixed to the tool body while extending forward therefrom, said blades (3) forming jointly a front cutting surface (7), and having radial channels (4) for drilling fluid which mutually separate the blades (3) and are open outwards. The invention is characterized in that it further comprises, through at least one radial fluid channel (2) arranged between two said blades (3), at least one bridge (6, 6′, 6″) which connects said two blades, by being arranged between the tool body (2) and said front cutting surface (7).
摘要翻译：本发明涉及具有静止切割结构的钻头（1），其包括工具主体（2）和多个叶片（3），其由浸渍有磨料颗粒的金属基体组成，并且固定在工具本体上同时向前延伸所述叶片（3）共同形成前切割表面（7），并且具有用于钻出流体的径向通道（4），所述径向通道相互分离叶片（3）并向外敞开。本发明的特征在于，其还包括通过布置在两个所述叶片（3）之间的至少一个径向流体通道（2），至少一个连接所述两个叶片的桥（6,6'，6“），其通过布置在工具主体（2）和所述前切割表面（7）之间。

4. 发明申请

US20070215389A1 Matrix Drill Bits With Back Raked Cutting Elements 有权
标题翻译：具有背面切削元件的矩阵钻头
公开(公告)号：US20070215389A1
公开(公告)日：2007-09-20
申请号：US11687472
申请日：2007-03-16
申请人： Nuno Da Silva , Valerie Sillen , Nicolas Luyckx
发明人： Nuno Da Silva , Valerie Sillen , Nicolas Luyckx
IPC分类号： E21B10/08
CPC分类号： E21B10/42
摘要： A matrix drill bit and method of manufacturing a matrix bit having back raked cutting elements is disclosed. In one aspect, a matrix drill bit for well drilling includes a matrix bit body that has a front area in a direction of drilling and two or more diamond impregnated cutting blades protruding from the front area of the matrix bit body. The cutting blades each have a front external surface protruding from the front area of the matrix bit body and present a plurality of back raked downhole interface surfaces in the direction of drilling. The downhole interface surfaces span a leading face and a trailing face where the leading face extends to a first height and the trailing face extends to a second height and the first height is greater than the second height.
摘要翻译：公开了一种矩阵钻头和制造具有背斜切割元件的矩阵钻头的方法。在一个方面，用于钻井的矩阵钻头包括矩阵钻头体，其具有在钻孔方向上的前区域和从矩阵钻头体的前部区域突出的两个或多个金刚石浸渍切割刀片。切割刀片各自具有从矩阵钻头体的前部区域突出的前部外表面，并在钻孔方向上呈现多个后倾的井下界面表面。井下接口表面跨越前导面和后表面，其中前表面延伸到第一高度，并且后表面延伸到第二高度，并且第一高度大于第二高度。

5. 发明授权

US09022143B2 Wear indicators for drilling equipment 有权
标题翻译：钻井设备磨损指标
公开(公告)号：US09022143B2
公开(公告)日：2015-05-05
申请号：US13513533
申请日：2011-06-03
申请人： Olivier Dupont , Nuno Da Silva
发明人： Olivier Dupont , Nuno Da Silva
IPC分类号： E21B12/02
CPC分类号： E21B12/02
摘要： Described herein is a wear indicator (100) for use in a drill bit or a core head. The wear indicator (100) comprises an elongate element that forms part of the drill bit. The elongate element has a plurality of numbers (110, 120, 130, 140, 150, 160, 170, 180) formed along its length, each number (110, 120, 130, 140, 150, 160, 170, 180) being formed as a void and corresponds to a level of wear in accordance with the IADC dull grading system. As the drill becomes worn, the wear indicator (100) wears at the same rate to reveal one of the numbers (110, 120, 130, 140, 150, 160, 170, 180). The numbers range from “1” to “8” where the number “1” illustrates the least wear and the number “8” indicates the most wear. When unworn, none of the numbers are visible.
摘要翻译：这里描述的是用于钻头或芯头的磨损指示器（100）。磨损指示器（100）包括形成钻头的一部分的细长元件。细长元件具有沿着其长度形成的多个数字（110,120,130,140,150,160,170,180），每个数字（110,120,130,140,150,160,170,180）为形成为空隙，并且对应于根据IADC暗沉分级系统的磨损程度。当钻头磨损时，磨损指示器（100）以相同的速率磨损以显示数字（110,120,130,140,150,160,170,180）中的一个。数字范围从“1”到“8”，数字“1”表示最少的磨损，数字“8”表示最大的磨损。没有人看不到任何数字。

6. 发明申请

US20140102791A1 Wear Indicators for Drilling Equipment 有权
标题翻译：钻孔设备磨损指标
公开(公告)号：US20140102791A1
公开(公告)日：2014-04-17
申请号：US13513533
申请日：2011-06-03
申请人： Olivier Dupont , Nuno Da Silva
发明人： Olivier Dupont , Nuno Da Silva
IPC分类号： E21B12/02
CPC分类号： E21B12/02
摘要： Described herein is a wear indicator (100) for use in a drill bit or a core head. The wear indicator (100) comprises an elongate element that forms part of the drill bit. The elongate element has a plurality of numbers (110, 120, 130, 140, 150, 160, 170, 180) formed along its length, each number (110, 120, 130, 140, 150, 160, 170, 180) being formed as a void and corresponds to a level of wear in accordance with the IADC dull grading system. As the drill becomes worn, the wear indicator (100) wears at the same rate to reveal one of the numbers (110, 120, 130, 140, 150, 160, 170, 180). The numbers range from “1” to “8” where the number “1” illustrates the least wear and the number “8” indicates the most wear. When unworn, none of the numbers are visible.
摘要翻译：这里描述的是用于钻头或芯头的磨损指示器（100）。磨损指示器（100）包括形成钻头的一部分的细长元件。细长元件具有沿着其长度形成的多个数字（110,120,130,140,150,160,170,180），每个数字（110,120,130,140,150,160,170,180）为形成为空隙，并且对应于根据IADC暗沉分级系统的磨损程度。当钻头磨损时，磨损指示器（100）以相同的速率磨损以显示数字（110,120,130,140,150,160,170,180）中的一个。数字范围从“1”到“8”，数字“1”表示最少的磨损，数字“8”表示最大的磨损。没有人看不到任何数字。

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