专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5651421A Rotary drill bits 失效
标题翻译：旋转钻头
公开(公告)号：US5651421A
公开(公告)日：1997-07-29
申请号：US541771
申请日：1995-10-10
申请人： Alex Newton , Malcolm R. Taylor , John M. Fuller , Andrew Murdock
发明人： Alex Newton , Malcolm R. Taylor , John M. Fuller , Andrew Murdock
IPC分类号： E21B10/42 , E21B10/43 , E21B10/54 , E21B10/55 , E21B10/60 , E21B10/16
CPC分类号： E21B10/43 , E21B10/55 , E21B10/602
摘要： A rotary drill bit for drilling holes in subsurface formations comprises a bit body having a shank for connection to a drill string, a number of circumferentially spaced blades on the bit body each extending outwardly away from the central axis of rotation of the bit, a number of cutters mounted side-by-side along each blade, and a passage in the bit body for supplying drilling fluid to the surface of the bit for cleaning and cooling the cutters. The blades comprise alternating primary and secondary blades. The cutters on the primary blades are primary cutters which are located at different radial distances from the bit axis so as to define a cutting profile which, in use, covers substantially the whole of the bottom of the bore hole being drilled. At least the majority of the cutters on the secondary blades are secondary cutters each of which is located at substantially the same radial distance from the bit axis as an associated primary cutter on the preceding primary blade.
摘要翻译：用于在地下构造中钻孔的旋转钻头包括具有用于连接到钻柱的柄的钻头体，钻头体上的多个周向间隔开的叶片每个从钻头的中心旋转轴线向外延伸，沿着每个叶片并排安装的切割器，以及钻头体中的用于向钻头表面提供钻井液的通道，用于清洁和冷却切割器。叶片包括交替的主叶片和次叶片。主叶片上的切割器是位于与钻头轴线不同的径向距离处的初级切割器，以便限定切割轮廓，该切割轮廓在使用中基本覆盖被钻孔的整个底部的底部。至少大多数次级叶片上的切割器是二次切割器，每个切割器位于与前一主叶片上的相关联的主切割器相比从钻头轴线基本相同的径向距离处。

2. 发明授权

US5697461A Rotary drill bit having a non-rotating gauge section 失效
标题翻译：旋转钻头具有非旋转规格部分
公开(公告)号：US5697461A
公开(公告)日：1997-12-16
申请号：US541995
申请日：1995-10-10
申请人： Alex Newton , John M. Fuller , Andrew Murdock , Daniel J. Sarik
发明人： Alex Newton , John M. Fuller , Andrew Murdock , Daniel J. Sarik
IPC分类号： E21B10/00 , E21B10/60 , E21B17/10 , E21B10/08
CPC分类号： E21B17/1092 , E21B10/00 , E21B10/602 , E21B17/1064
摘要： A rotary drill bit comprises a bit body, a shank for connection to a drill string, a plurality of cutters mounted on the bit body, and a gauge structure which extends around the bit body and, in use, engages the surrounding formation forming the sides of the borehole being drilled. At least a section of the gauge structure is rotatably mounted on the bit body so that, in use, the gauge section may remain substantially non-rotating in engagement with the formation while the bit body rotates relative to it. The external surface of the non-rotating gauge section may be formed with longitudinal grooves to permit the flow of drilling fluid past the gauge section to the annulus. Alternatively the outer surface of the gauge section may be generally cylindrical, in which case internal passages are provided through the gauge section, and/or the bit body, for the flow of drilling fluid past the gauge section to the annulus.
摘要翻译：旋转钻头包括钻头体，用于连接到钻柱的柄，安装在钻头体上的多个切割器以及围绕钻头体延伸的测量结构，并且在使用中与形成侧面的周围结构接合的钻孔。仪表结构的至少一部分可旋转地安装在钻头体上，使得在使用中，当钻头体相对于钻头体旋转时，测量部分可以保持与地层接合的基本不旋转。非旋转量规部分的外表面可以形成有纵向槽，以允许钻井液体流过量规部分流到环形空间。或者，量规部分的外表面可以是大致圆柱形的，在这种情况下，通过计量部分提供内部通道和/或钻头体，用于使钻井液体流过测量部分到环形空间。

3. 发明授权

US5649604A Rotary drill bits 失效
标题翻译：旋转钻头
公开(公告)号：US5649604A
公开(公告)日：1997-07-22
申请号：US538759
申请日：1995-10-03
申请人： John M. Fuller , Andrew Murdock
发明人： John M. Fuller , Andrew Murdock
IPC分类号： E21B10/42 , E21B10/43 , E21B10/56 , E21B10/567 , E21B10/46
CPC分类号： E21B10/43 , E21B10/5673
摘要： A rotary drill bit comprises a bit body having a shank for connection to a drill string, a plurality of cutters mounted on the bit body, each cutter having a cutting face, and means for supplying drilling fluid to the surface of the bit body to cool and clean the cutters. At least some of the cutters are lateral cutters located to act sideways on the formation being drilled, and the cutting faces of such lateral cutters are orientated to exhibit negative side rake and negative top rake with respect to the surface of the formation. The negative side rake angle is greater than 20.degree. and may be as much as 90.degree., and the negative top rake angle is also more than 20.degree.. A single cutter may include two cutting faces at different negative side rake angles, e.g. the cutter may comprise a generally cylindrical substrate formed at one end with two oppositely inclined surfaces meeting along a ridge, a facing table of polycrystalline diamond being bonded to the substrate surfaces and extending over the ridge.
摘要翻译：旋转钻头包括具有用于连接到钻柱的柄的钻头体，安装在钻头体上的多个切割器，每个切割器具有切割面，以及用于将钻井流体供应到钻头体的表面以冷却的装置并清洁刀具。至少一些切割器是位于在被钻孔的地层上侧向作用的横向切割器，并且这种横向切割器的切割面被定向成相对于地层的表面呈现负侧倾斜和负顶部倾斜。负侧前角大于20°，可高达90°，负顶角前倾角也大于20°。单个切割器可以包括处于不同负侧前角的两个切割面，例如。切割器可以包括在一端形成的大致圆柱形的基底，两个相对倾斜的表面沿着隆起相交，多晶金刚石的面对台被结合到基底表面并在脊上延伸。

4. 发明授权

US5819860A Rotary drill bits 失效
标题翻译：旋转钻头
公开(公告)号：US5819860A
公开(公告)日：1998-10-13
申请号：US834440
申请日：1997-04-16
申请人： Alex Newton , Steven Taylor , Andrew Murdock , John M. Clegg
发明人： Alex Newton , Steven Taylor , Andrew Murdock , John M. Clegg
IPC分类号： E21B10/00 , E21B10/54 , E21B10/55 , E21B10/56 , E21B10/567 , E21B10/60 , E21B17/10
CPC分类号： E21B10/567 , E21B10/00 , E21B10/55 , E21B10/60 , E21B10/602 , E21B17/1064 , E21B17/1092
摘要： A rotary drill bit for use in drilling holes in subsurface formations comprises a bit body having a leading face and a gauge region, a number of blades formed on the leading face of the bit and extending outwardly away from the axis of the bit so as to define between the blades a number of fluid channels leading towards the gauge region, a number of cutting elements mounted side-by-side along each blade, and a number of nozzles in the bit body for supplying drilling fluid to the fluid channels for cleaning and cooling the cutting elements. In at least one of the fluid channels, adjacent the gauge region, is an opening into an enclosed passage which passes internally through the bit body to an outlet which, in use, communicates with the annulus between the drill string and the wall of the borehole being drilled. The portion of the gauge region outwardly of the opening comprises a bearing surface which, in use bears against the wall of the bore hole and extends across the width of the channel.
摘要翻译：用于在地下地层中钻孔的旋转钻头包括具有前表面和表面区域的钻头体，形成在钻头的前表面上并且向外远离钻头的轴线延伸的多个刀片，以便在叶片之间限定通向仪表区域的许多流体通道，沿着每个叶片并排安装的多个切割元件，以及钻头体中的多个喷嘴，用于将钻井流体供应到用于清洁的流体通道和冷却切割元件。在靠近仪表区域的至少一个流体通道中，是通向内部通过钻头体的封闭通道的开口，该出口在使用中与钻柱和钻孔壁之间的环形空间连通正在钻测量区域在开口外部的部分包括支承表面，其在使用中抵靠钻孔的壁并且延伸穿过通道的宽度。

5. 发明申请

US20060213691A1 Stabilizer Arrangement 失效
标题翻译：稳定剂排列
公开(公告)号：US20060213691A1
公开(公告)日：2006-09-28
申请号：US11276978
申请日：2006-03-20
申请人： Steven Barton , Andrew Murdock , Graham Watson
发明人： Steven Barton , Andrew Murdock , Graham Watson
IPC分类号： E21B17/10
CPC分类号： E21B17/1092 , E21B17/1078
摘要： A stabilizer comprises a body having first and second ends, each of which is formed with a respective connector means, the body having an outer wall upon which is formed a plurality of the upstanding blades radially outer surfaces of which define gauge pads, flow channels being defined between adjacent ones of the blades, and at least one bridging region interconnecting two adjacent ones of the blades to form an enclosed passage communicating with an associated one of the flow channels, the bridging region having a surface defining part of an outer gauge surface of the stabilizer, the at least one bridging region being located intermediate and spaced from the first and second ends.
摘要翻译：稳定器包括具有第一和第二端部的主体，每个主体形成有相应的连接器装置，主体具有外壁，多个直立的叶片形成有多个直立的叶片，径向外表面限定了规格垫，流动通道为限定在相邻的叶片之间，以及至少一个桥接区域，其互连两个相邻的叶片，以形成与相关的一个流动通道连通的封闭通道，桥接区域具有限定部分外表面的外表面的表面所述稳定器，所述至少一个桥接区域位于所述第一端和所述第二端的中间和间隔开。

6. 发明授权

US06484822B2 Cutting structure for earth boring drill bits 有权
公开(公告)号：US06484822B2
公开(公告)日：2002-11-26
申请号：US09791052
申请日：2001-02-22
申请人： Dean Watson , Andrew Murdock , Steve Barton
发明人： Dean Watson , Andrew Murdock , Steve Barton
IPC分类号： E21B1026
CPC分类号： E21B10/43 , E21B7/064
摘要： A drill bit for drilling a borehole, the drill bit comprising a bit body 10 having an axis of rotation 12, a leading face, a plurality of blades 26 upstanding from the leading face, at least one of the blades terminating in a gauge pad 28 having a gauge surface 29 arranged, in use, to face a wall 30 of the borehole 32, the gauge surface 29 being devoid of cutting elements, the gauge surface 29 terminating at an end thereof remote from the blade at a junction 58 with a gauge pad end wall 56, wherein the gauge pad 28 carries a single cutter 62 having a face 64 and a cutting edge 65 located radially inward of the gauge surface 29, and wherein the junction 58 of the gauge surface 29 and the gauge pad end wall 56 crosses, radially, between the face 64 of the cutter 62 and the wall 30 of the borehole 32.

7. 发明授权

US5732783A In or relating to rotary drill bits 失效
标题翻译：在或与旋转钻头相关
公开(公告)号：US5732783A
公开(公告)日：1998-03-31
申请号：US584852
申请日：1996-01-11
申请人： David Truax , Douglas Caraway , Stephen M. Evans , Andrew Murdock
发明人： David Truax , Douglas Caraway , Stephen M. Evans , Andrew Murdock
IPC分类号： B22D19/06 , B22D19/14 , B22D19/16 , B22F3/12 , B22F7/06 , B22F7/08 , E21B10/46 , E21B10/54 , E21B10/08
CPC分类号： B22F7/08 , B22D19/06 , B22D19/14 , B22D19/16 , B22F3/1275 , B22F7/06 , C22C1/1015 , E21B10/46 , E21B10/54 , B22F2005/001 , B22F2998/00
摘要： A drill bit comprises a main body part having a shank for connection to a drill string, an end face, an internal passage for supplying drilling fluid to the end face, a number of blades extending from the end face outwardly and longitudinally of the central axis of rotation of the bit, and a number of cutters mounted on each said blade. Each blade comprises a central metal core at least partly surrounded by solid infiltrated matrix material. A method of manufacturing such a drill bit includes the steps of providing a metal mandrel having said shank and internal passage, and providing on the mandrel, so as to be supported by it, a number of blade cores each having a portion extending outwardly and longitudinally of the central axis of the mandrel, casting infiltrated matrix material around at least a part of each core and around at least a part of the mandrel to form the blades, and then removing portions of the cores so as to detach each core from support by the mandrel to leave within each blade a core which is substantially wholly supported by the surrounding matrix material.
摘要翻译：钻头包括具有用于连接到钻柱的柄的主体部分，端面，用于向端面提供钻井流体的内部通道，从端面向外和中心轴线的纵向延伸的多个叶片钻头的旋转以及安装在每个所述刀片上的多个切割器。每个叶片包括至少部分地被固体渗透的基质材料包围的中心金属芯。一种制造这种钻头的方法包括以下步骤：提供具有所述柄和内部通道的金属心轴，并且在心轴上提供由其支撑的多个刀片芯，每个刀片芯具有向外和纵向延伸的部分的心轴的中心轴线，围绕每个芯部的至少一部分并围绕心轴的至少一部分铸造渗透的基质材料以形成刀片，然后去除芯部分，以便通过心轴在每个叶片内离开基本上完全由周围基质材料支撑的芯。

8. 发明授权

US6089336A Rotary drill bits 失效
标题翻译：旋转钻头
公开(公告)号：US6089336A
公开(公告)日：2000-07-18
申请号：US834439
申请日：1997-04-16
申请人： Alex Nexton , Michael Tomczak , Steven Taylor , Andrew Murdock , John M. Clegg
发明人： Alex Nexton , Michael Tomczak , Steven Taylor , Andrew Murdock , John M. Clegg
IPC分类号： E21B10/00 , E21B10/26 , E21B10/54 , E21B10/55 , E21B10/60 , E21B17/10
CPC分类号： E21B10/55 , E21B10/003 , E21B10/26 , E21B10/60 , E21B10/602 , E21B17/1092
摘要： A rotary drill bit for use in drilling holes in subsurface formations comprises a bit body having a leading face and a gauge region, a number of blades formed on the leading face of the bit and extending outwardly away from the axis of the bit so as to define between the blades a number of fluid channels leading towards the gauge region, a number of cutting elements mounted side-by-side along each blade, and a number of nozzles in the bit body for supplying drilling fluid to the fluid channels for cleaning and cooling the cutting elements. In each of the fluid channels, adjacent the gauge region, is an opening into an enclosed passage which passes internally through the bit body to an outlet which, in use, communicates with the annulus between the drill string and the wall of the borehole being drilled. The gauge region of the drill bit comprises a substantially continuous bearing surface which extends around the whole of the gauge region.
摘要翻译：用于在地下地层中钻孔的旋转钻头包括具有前表面和表面区域的钻头体，形成在钻头的前表面上并且向外远离钻头的轴线延伸的多个刀片，以便在叶片之间限定通向仪表区域的许多流体通道，沿着每个叶片并排安装的多个切割元件，以及钻头体中的多个喷嘴，用于将钻井流体供应到用于清洁的流体通道和冷却切割元件。在每个流体通道中，邻近测量区域，是通向内部通过钻头体的封闭通道的开口，该出口在使用中与钻柱和钻孔壁之间的环空相连通。钻头的测量区域包括围绕整个测量区域延伸的基本上连续的支承表面。

9. 发明授权

US5944128A Matrix hard facing by lost wax process 失效
标题翻译：失落蜡过程中的矩阵硬面
公开(公告)号：US5944128A
公开(公告)日：1999-08-31
申请号：US19877
申请日：1998-02-06
申请人： David Truax , Douglas Caraway , Stephen M. Evans , Andrew Murdock
发明人： David Truax , Douglas Caraway , Stephen M. Evans , Andrew Murdock
IPC分类号： B22D19/06 , B22D19/14 , B22D19/16 , B22F3/12 , B22F7/06 , B22F7/08 , E21B10/46 , E21B10/54 , E21B10/08
CPC分类号： B22F7/08 , B22D19/06 , B22D19/14 , B22D19/16 , B22F3/1275 , B22F7/06 , C22C1/1015 , E21B10/46 , E21B10/54 , B22F2005/001 , B22F2998/00
摘要： A drill bit comprises a main body part having a shank for connection to a drill string, an end face, an internal passage for supplying drilling fluid to the end face, a number of blades extending from the end face outwardly and longitudinally of the central axis of rotation of the bit, and a number of cutters mounted on each said blade. Each blade comprises a central metal core at least partly surrounded by solid infiltrated matrix material. A method of manufacturing such a drill bit includes the steps of forming a main body part from metal, applying to the outer surface of the main body part a coating layer of wax which liquefies at elevated temperature, applying to the coated body part mold-forming material to provide a self-supporting mold surrounding the coated body part, and raising the temperature of the body and surrounding mold sufficiently to liquefy the coating material. The liquefied coating is then drained from the mold, and the cavities left by the coating material are packed with powdered matrix material, which is then infiltrated with a binder alloy at elevated temperature to form a solid infiltrated matrix layer, on the bit body part, corresponding to the layer of wax previously applied.
摘要翻译：钻头包括具有用于连接到钻柱的柄的主体部分，端面，用于向端面提供钻井流体的内部通道，从端面向外和中心轴线的纵向延伸的多个叶片钻头的旋转以及安装在每个所述刀片上的多个切割器。每个叶片包括至少部分地被固体渗透的基质材料包围的中心金属芯。一种制造这种钻头的方法包括以下步骤：从金属形成主体部分，向主体部分的外表面涂覆在高温下液化的蜡涂层，施加到涂覆体部分模具成型提供围绕涂覆体部分的自支撑模具的材料，并且充分提高主体和周围模具的温度以液化涂料。然后将液化的涂层从模具中排出，并且由涂料留下的空腔填充有粉末状基体材料，然后在高温下用粘合剂合金渗透以在钻头体部分上形成固体渗透的基质层，对应于以前应用的蜡层。

10. 发明授权

US6164390A Method of determining characteristics of a rotary drag-type drill bit 有权
标题翻译：确定旋转阻力式钻头特性的方法
公开(公告)号：US6164390A
公开(公告)日：2000-12-26
申请号：US245605
申请日：1999-02-05
申请人： Andrew Murdock , Clive Jarvis
发明人： Andrew Murdock , Clive Jarvis
IPC分类号： E21B7/08 , E21B7/10 , E21B10/04 , E21B10/42 , E21B10/43 , E21B44/00
CPC分类号： E21B10/43 , E21B7/10 , E21B10/04
摘要： A method of predicting the walk rate of a design of rotary drag-type drill bit of the kind where the leading face of the bit body is formed with a central depression, or cone, comprises the steps of: calculating the cone volume V.sub.cone of the bit; calculating that ratio ##EQU1## of the total torque generated by the cutters on the bit which is attributable to those cutters which are mounted in said cone; calculating a Walk Factor ##EQU2## and then determining the predicted walk rate W of the bit from a graph, or other database, relating previously established values of F for other drill bits to the respective walk rates W for those drill bits.
摘要翻译：一种用于预测钻头体的前表面形成有中心凹陷或锥体的旋转式拖曳钻头设计的行走速率的方法包括以下步骤：计算钻头体的锥体体积Vcone 位计算由刀具产生的总转矩对可归因于安装在所述锥体中的那些刀具的钻头上的比率; 计算步行因子，然后从图形或其他数据库中确定位的预测行走速率W，将先前建立的其他钻头的F值与这些钻头的相应行走速率W相关联。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式