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公开(公告)号：US4343371A
公开(公告)日：1982-08-10
申请号：US144515
申请日：1980-04-28
IPC分类号： E21B10/14 , E21B10/16 , E21B10/52 , E21B10/56 , E21B10/567
CPC分类号： E21B10/567 , E21B10/14 , E21B10/16 , E21B10/52
摘要： A hybrid rock bit is disclosed wherein a pair of opposing extended nozzle drag bit legs are positioned adjacent a pair of opposed tungsten carbide roller cones. The extended nozzle face nearest the hole bottom has a multiplicity of diamond inserts mounted therein. The diamond inserts are strategically positioned to remove the ridges between the kerf rows in the hole bottom formed by the inserts in the roller cones.
摘要翻译： 公开了一种混合岩石钻头，其中一对相对的延伸喷嘴拖曳钻头腿邻近一对相对的碳化钨辊锥定位。 最靠近孔底部的延伸的喷嘴面具有安装在其中的多个金刚石刀片。 金刚石刀片有策略地定位，以去除由滚子锥体中的刀片形成的孔底部的切口排之间的脊。
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公开(公告)号：US4359112A
公开(公告)日：1982-11-16
申请号：US161199
申请日：1980-06-19
CPC分类号： E21B10/567 , E21B10/04 , E21B10/14 , E21B10/60
摘要： This concept discloses a new technique which uses brazing or diffusion bonding methods to attach a diamond disk to a wedge-shaped steel support platform on a hybrid type of bit. The invention is primarily concerned with the attachment of the innermost diamond cutting disk on the wedge-shaped drag bit face portion of the hybrid bit. It is particularly difficult to secure any kind of cutting structure to the innermost portion of a rock bit because of the lack of material available to secure the cutting structure to the drag bit face. Space limitations on the drag bit face prevent the use of conventional interference fit diamond insert studs for the innermost cutters.
摘要翻译： 该概念公开了一种使用钎焊或扩散粘合方法将金刚石盘附接到混合型钻头上的楔形钢支撑平台的新技术。 本发明主要涉及最里面的金刚石切割盘与混合钻头的楔形拖曳钻头面部分的连接。 由于缺少可用于将切割结构固定到拖曳钻头面的材料，因此特别难以将任何种类的切割结构固定到岩石钻头的最内部。 阻力位面上的空间限制可以防止对最内侧刀具使用常规的过盈配合金刚石刀片螺柱。
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公开(公告)号：US4203496A
公开(公告)日：1980-05-20
申请号：US951978
申请日：1978-10-16
CPC分类号： E21B10/083 , E21B10/50 , E21B10/52
摘要： A Zublin type rotary drill bit is disclosed having a main body rotating about a main axis. The bit body includes a journl pin extending downwardly therefrom, with the journal pin forming a second axis disposed at an angle with respect to the main axis. The journal pin has a cutter rotatively mounted thereon, with the cutter having a spherical outer surface which has a plurality of inner rows of tungsten carbide mounted thereon. The gage row of the cutter is also formed on the spherical outer surface and defines a plane intersecting the intersection of the main and second axes. The cutter gage row is formed by a plurality of inserts having synthetic diamond cutting surfaces, which are facing downwardly toward the apex of the cutter, in order to scrape the sides of the bore hole during the downwardly traveling portion of the gage insert travel cycle. The cutter also has a heel portion which is located adjacent the backside of the gage inserts for protecting the inserts during the upwardly traveling portion of the gage insert travel cycle.
摘要翻译： 公开了一种苏布兰式旋转钻头，其主体围绕主轴线旋转。 钻头体包括从其向下延伸的螺纹销，轴颈销形成相对于主轴线成一定角度设置的第二轴线。 轴颈销具有可旋转地安装在其上的切割器，切割器具有球形外表面，其具有安装在其上的多个内排碳化钨。 切割器的规格行也形成在球形外表面上并且限定与主轴和第二轴相交的平面。 切割量规列由具有合成金刚石切割表面的多个插入件形成，该表面向下朝向切割器的顶点朝下，以便在量规插入件行进循环的向下行进部分期间刮擦钻孔的侧面。 刀具还具有邻近量规插入件的后侧的跟部，用于在量规插入件行进循环的向上行进部分期间保护插入件。
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公开(公告)号：US4185706A
公开(公告)日：1980-01-29
申请号：US961579
申请日：1978-11-17
申请人： William Baker, III , Joe W. Vincent
发明人： William Baker, III , Joe W. Vincent
摘要： This invention teaches the use of cavitation inducing nozzles in combination with rock bits. The cavitation nozzles enhance the drilling rate by creating catastrophic implosion waves which erode solid material at the bottom of the hole while reducing the localized pressure at the rock tooth interface. Localized pressure reduction reduces the tendency for the cuttings to adhere to the bottom of the hole due to differential pressure.
摘要翻译： 本发明教导了使用气蚀诱导喷嘴与岩石钻头的组合。 空化喷嘴通过产生灾难性的内爆波来增加钻孔速率，这会在孔的底部侵蚀固体材料，同时降低岩石界面处的局部压力。 局部压力降低降低了由于压差而导致切屑粘附到孔底部的趋势。
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公开(公告)号：US4253533A
公开(公告)日：1981-03-03
申请号：US91649
申请日：1979-11-05
申请人： William Baker, III
发明人： William Baker, III
IPC分类号： E21B10/56 , E21B10/567 , E21B10/60 , E21B12/04 , E21B10/46
CPC分类号： E21B10/567 , E21B10/60 , E21B12/04
摘要： A diamond studded insert drag bit is disclosed having a multiplicity of individual diamond insert cutter blanks inserted in the face of the bit. The diamond insert blanks are so positioned to maximize penetration of the bit in a borehole. The bit further includes one or more wear pads adjacent the multiplicity of diamond insert cutter blanks, the wear pads serving to channel the flow of drilling mud emanating from fluid passages formed in the face of the bit. The wear pads seal off a portion of the borehole bottom thereby directing hydraulic fluid across the face and over each of the strategically positioned diamond cutter blanks.
摘要翻译： 公开了一种具有插入钻头表面的多个单独的金刚石刀片切割器坯料的镶嵌钻石镶嵌钻头。 金刚石刀片坯料被定位成使钻头在钻孔中的穿透最大化。 该钻头还包括与多个金刚石刀片切割器坯件相邻的一个或多个耐磨垫片，该磨损垫用于引导从形成在钻头表面的流体通道发出的钻井泥浆的流动。 磨损垫密封钻孔底部的一部分，从而引导液压流体穿过表面和每个策略性定位的金刚石切割器坯料。
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公开(公告)号：US4189014A
公开(公告)日：1980-02-19
申请号：US933628
申请日：1978-08-14
申请人： James H. Allen , William Baker, III
发明人： James H. Allen , William Baker, III
CPC分类号： E21B10/18
摘要： A drill bit having three cone-shaped cutters is formed with two drilling fluid nozzles on opposite sides of one of the cutters and with an enlarged return passage for the drilling fluid being formed between the other two cutters. Flow restrictors adjacent the two nozzles restrict the flow of return fluid in those areas. A flow diverter in the dome area of the bit extends into the space between the cutters to better direct fluid across the bottom of the hole where cuttings are being generated by the cutter teeth.
摘要翻译： 具有三个锥形切割器的钻头在其中一个切割器的相对侧上形成有两个钻井流体喷嘴，并且在其它两个切割器之间形成有用于钻井流体的扩大返回通道。 与两个喷嘴相邻的流量限制器限制了这些区域中回流流体的流动。 钻头的圆顶区域中的分流器延伸到切割器之间的空间中，以更好地将流体穿过孔的底部，由切割齿产生切屑。
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