公开(公告)号：US20070193781A1

公开(公告)日：2007-08-23

申请号：US11677151

申请日：2007-02-21

申请人： Mark P. Blackman ,  Mark E. Williams ,  William C. Saxman ,  Michael B. Crawford ,  Gerald L. Pruitt ,  William W. King ,  Bruce A. Rohde

发明人： Mark P. Blackman ,  Mark E. Williams ,  William C. Saxman ,  Michael B. Crawford ,  Gerald L. Pruitt ,  William W. King ,  Bruce A. Rohde

IPC分类号： E21B10/18 ,  E21B10/22

CPC分类号： E21B10/25 ,  E21B10/18 ,  E21B10/24

摘要： A roller cone drill bit having a bit body with at least one support arm extending therefrom. Each support arm may have an interior surface and an exterior surface with an associated spindle extending inwardly from the interior surface. A respective cone assembly may be rotatably disposed on each spindle. A gap may be formed between interior portions of each cone assembly and exterior portions of the associated spindle with a fluid seal disposed in the gap to block fluid flow therethrough. Each cone assembly may include a generally circular backface disposed adjacent to the interior surface of the associated support arm. At least one fluid passageway may extend through each support arm to allow communication of fluid from the interior surface to an exterior surface of the support arm. A debris diverter insert having a generally hollow bore may be disposed within each fluid passageway.

摘要翻译： 一种辊锥钻头，其具有从其延伸的至少一个支撑臂的钻头体。 每个支撑臂可以具有内表面和外表面，其中相关的心轴从内表面向内延伸。 相应的锥形组件可以可旋转地设置在每个心轴上。 可以在每个锥形组件的内部部分和相关主轴的外部部分之间形成间隙，其中设置在间隙中的流体密封件以阻止流过其中的流体流动。 每个锥形组件可以包括邻近相关支撑臂的内表面设置的大致圆形背面。 至少一个流体通道可以延伸穿过每个支撑臂，以允许流体从内表面连通到支撑臂的外表面。 具有大致中空孔的碎屑转向器插入件可设置在每个流体通道内。

公开(公告)号：US07543660B2

公开(公告)日：2009-06-09

申请号：US11677158

申请日：2007-02-21

申请人： Michael B. Crawford ,  Mark E. Williams ,  William C. Saxman ,  Mark P. Blackman ,  Gerald L. Pruitt

发明人： Michael B. Crawford ,  Mark E. Williams ,  William C. Saxman ,  Mark P. Blackman ,  Gerald L. Pruitt

IPC分类号： E21B10/22 ,  E21B10/23

CPC分类号： E21B10/22 ,  E21B10/25

摘要： A roller cone drill bit having a bit body with at least one support arm extending from the bit body. Each support arm may have an associated spindle extending inwardly. A respective cone assembly may be rotatably disposed on each spindle. At least one diverter plug may be disposed in a hole formed in each support arm. A void space may be formed between one end of each diverter plug and the bottom of the associated hole. At least one fluid flow passageway may extend from the surface of the associated support arm to the void space to allow communication of fluid containing debris with the void space. Rotating action of the roller cone drill bit and associated cone assemblies may force packing of debris into the void space which results in biasing the diverter plug outwardly from the associated hole to contact adjacent portions of the associated cone assembly.

摘要翻译： 一种滚子锥钻头，其具有从钻头体延伸的至少一个支撑臂的钻头体。 每个支撑臂可以具有向内延伸的相关联的心轴。 相应的锥形组件可以可旋转地设置在每个心轴上。 至少一个分流器插头可以设置在形成在每个支撑臂中的孔中。 可以在每个分流器插头的一端和相关联的孔的底部之间形成空隙。 至少一个流体流动通道可以从相关联的支撑臂的表面延伸到空隙空间，以允许含有碎屑的流体与空隙空间连通。 滚子锥钻头和相关的锥形组件的旋转作用可能迫使碎屑堆积在空隙空间中，从而使分流器插头从相关孔向外偏压，以接触相关锥形组件的相邻部分。

公开(公告)号：US20070261891A1

公开(公告)日：2007-11-15

申请号：US11677166

申请日：2007-02-21

申请人： Mark E. Williams ,  Michael B. Crawford ,  William C. Saxman ,  Mark P. Blackman ,  Gerald L. Pruitt

发明人： Mark E. Williams ,  Michael B. Crawford ,  William C. Saxman ,  Mark P. Blackman ,  Gerald L. Pruitt

IPC分类号： E21B10/08

CPC分类号： E21B10/25

摘要： A roller cone drill bit having a bit body with at least one support arm extending from the bit body. Each support arm may have an interior surface and exterior surface with an associated spindle extending from the interior surface. A respective cone assembly may be rotatably disposed on each spindle. A gap formed between interior portions of each cone assembly and exterior portions of the associated spindle with a fluid seal disposed in the gap to block fluid flow therethrough. Each cone assembly includes a generally circular back surface disposed adjacent to the interior surface of the associated support arm. A flow diverter groove formed in the interior surface of each support arm spaced from the associated spindle. Each diverter groove having a variable geometry to enhance the flow of fluid containing downhole debris away from the associated real assembly, and each diverter groove having a variable geometry.

摘要翻译： 一种滚子锥钻头，其具有从钻头体延伸的至少一个支撑臂的钻头体。 每个支撑臂可以具有内表面和外表面以及从内表面延伸的相关心轴。 相应的锥形组件可以可旋转地设置在每个心轴上。 在每个锥形组件的内部部分和相关主轴的外部部分之间形成的间隙，其中设置在该间隙中的流体密封件以阻止流过其中的流体流动。 每个锥形组件包括邻近相关支撑臂的内表面设置的大致圆形的后表面。 形成在每个支撑臂的内表面中的与分配的主轴间隔开的分流槽。 每个分流槽具有可变的几何形状，以增强包含井下碎片的流体流离相关联的真实组件，并且每个分流槽具有可变的几何形状。

公开(公告)号：US20070193779A1

公开(公告)日：2007-08-23

申请号：US11677158

申请日：2007-02-21

申请人： Michael B. Crawford ,  Mark E. Williams ,  William C. Saxman ,  Mark P. Blackman ,  Gerald L. Pruitt

发明人： Michael B. Crawford ,  Mark E. Williams ,  William C. Saxman ,  Mark P. Blackman ,  Gerald L. Pruitt

IPC分类号： E21B10/00

CPC分类号： E21B10/22 ,  E21B10/25

摘要： A roller cone drill bit having a bit body with at least one support arm extending from the bit body. Each support arm may have an associated spindle extending inwardly. A respective cone assembly may be rotatably disposed on each spindle. At least one diverter plug may be disposed in a hole formed in each support arm. A void space may be formed between one end of each diverter plug and the bottom of the associated hole. At least one fluid flow passageway may extend from the surface of the associated support arm to the void space to allow communication of fluid containing debris with the void space. Rotating action of the roller cone drill bit and associated cone assemblies may force packing of debris into the void space which results in biasing the diverter plug outwardly from the associated hole to contact adjacent portions of the associated cone assembly.

摘要翻译： 一种滚子锥钻头，其具有从钻头体延伸的至少一个支撑臂的钻头体。 每个支撑臂可以具有向内延伸的相关联的心轴。 相应的锥形组件可以可旋转地设置在每个心轴上。 至少一个分流器插头可以设置在形成在每个支撑臂中的孔中。 可以在每个分流器插头的一端和相关联的孔的底部之间形成空隙。 至少一个流体流动通道可以从相关联的支撑臂的表面延伸到空隙空间，以允许含有碎屑的流体与空隙空间连通。 滚子锥钻头和相关联的锥形组件的旋转动作可以迫使碎屑堆积在空隙空间中，从而使分流器插头从相关孔向外偏压，以接触相关锥形组件的相邻部分。

公开(公告)号：US07484572B2

公开(公告)日：2009-02-03

申请号：US11677151

申请日：2007-02-21

申请人： Mark P. Blackman ,  Mark E. Williams ,  William C. Saxman ,  Michael B. Crawford ,  Gerald L. Pruitt ,  William W. King ,  Bruce A. Rohde

发明人： Mark P. Blackman ,  Mark E. Williams ,  William C. Saxman ,  Michael B. Crawford ,  Gerald L. Pruitt ,  William W. King ,  Bruce A. Rohde

IPC分类号： E21B10/22

CPC分类号： E21B10/25 ,  E21B10/18 ,  E21B10/24

摘要： A roller cone drill bit having a bit body with at least one support arm extending therefrom. Each support arm may have an interior surface and an exterior surface with an associated spindle extending inwardly from the interior surface. A respective cone assembly may be rotatably disposed on each spindle. A gap may be formed between interior portions of each cone assembly and exterior portions of the associated spindle with a fluid seal disposed in the gap to block fluid flow therethrough. Each cone assembly may include a generally circular backface disposed adjacent to the interior surface of the associated support arm. At least one fluid passageway may extend through each support arm to allow communication of fluid from the interior surface to an exterior surface of the support arm. A debris diverter insert having a generally hollow bore may be disposed within each fluid passageway.

摘要翻译： 一种辊锥钻头，其具有从其延伸的至少一个支撑臂的钻头体。 每个支撑臂可以具有内表面和外表面，其中相关的心轴从内表面向内延伸。 相应的锥形组件可以可旋转地设置在每个心轴上。 可以在每个锥形组件的内部部分和相关主轴的外部部分之间形成间隙，其中设置在间隙中的流体密封件以阻止流过其中的流体流动。 每个锥形组件可以包括邻近相关支撑臂的内表面设置的大致圆形背面。 至少一个流体通道可以延伸穿过每个支撑臂，以允许流体从内表面连通到支撑臂的外表面。 具有大致中空孔的碎屑转向器插入件可设置在每个流体通道内。

公开(公告)号：US06206116B1

公开(公告)日：2001-03-27

申请号：US09114787

申请日：1998-07-13

申请人： William C. Saxman

发明人： William C. Saxman

IPC分类号： E21B1016

CPC分类号： E21B10/50 ,  E21B10/16

摘要： A rotary cone drill bit is provided with at least one cutter cone assembly having a machined cutting structure which will maintain an effective cutting profile despite abrasion, erosion and/or wear of the associated cutting elements. The machined cutting structure may be formed on a generally cone shaped blank by a series of lathe turns and/or plunge cuts. The cutting elements may be formed with an aggressive cutting profile. For one application, the crest of each cutting element has the general configuration of an ogee curve. A layer of hardfacing material may be applied over all or selected portions of the machined cutting structure.

摘要翻译： 旋转锥形钻头设置有至少一个切割锥形组件，其具有加工的切割结构，其将保持有效的切割轮廓，尽管相关切割元件的磨损，侵蚀和/或磨损。 加工的切割结构可以通过一系列车床转弯和/或切入刀形成在大致锥形的坯料上。 切割元件可以形成为具有侵蚀性的切割轮廓。 对于一个应用，每个切割元件的顶点具有奥格曲线的一般配置。 可以在加工的切割结构的所有或选择的部分上施加一层表面硬化材料。

公开(公告)号：US4179000A

公开(公告)日：1979-12-18

申请号：US912624

申请日：1978-06-05

申请人： Howard E. Mitchell ,  William C. Saxman

发明人： Howard E. Mitchell ,  William C. Saxman

IPC分类号： E21B7/28 ,  E21B10/10 ,  E21B10/20 ,  E21B10/28 ,  E21C23/00

CPC分类号： E21B10/10 ,  E21B10/20 ,  E21B10/28 ,  E21B7/28

摘要： The body of a raise boring head is produced from a truncated cone. A variety of efficient and economical methods such as spin-forming, casting, rolling, etc. may be used in producing the truncated cone body. A multiplicity of rolling cutters positioned in cutter saddles are mounted on the truncated cone body. The mounting surfaces for the cutter saddles are on a continuous plane. The continuous plane can be produced on the truncated cone body in one turning operation. The raise boring head is self-cleaning due to the natural tendency of the cuttings to slide toward the periphery of the truncated cone body surface. The overall gross weight of the raise boring head is reduced and the strength-to-weight ratio is increased. The structural rigidity of the raise boring head is improved even though many of the structural components used in prior art raise boring heads have been eliminated.

摘要翻译： 镗孔的头部由截锥制成。 可以使用各种有效和经济的方法，例如旋转成型，铸造，轧制等，以生产截头锥体。 定位在切割器鞍座中的多个滚动切割机安装在截锥体上。 刀座的安装表面在连续的平面上。 在一个车削操作中，可以在截头锥体上产生连续平面。 由于切屑向截头锥体表面的周边滑动的自然倾向，起毛钻头是自清洁的。 升高镗头的总体毛重减少，强度重量比增加。 即使已经消除了现有技术中使用的许多结构部件，提高了镗头的结构刚度也得以改善。

公开(公告)号：US06390209B2

公开(公告)日：2002-05-21

申请号：US09796241

申请日：2001-02-28

申请人： William C. Saxman

发明人： William C. Saxman

IPC分类号： E21B1024

CPC分类号： E21B10/24

摘要： A pressure compensating assembly for use in roller cone drilling bits of the sealed bearing type. The compensating assembly includes a hollow body arranged to fit into a cavity in the bit connected with the lubrication system of the bit and the hollow body includes a normally open lubricant passageway extending therethrough. A seal encircles the body on one side of the lubricant passageway and is arranged to sealingly engage the bit and an elastomeric, cup-shaped diaphragm is located on the body and has a lip arranged to sealingly engage the bit on the other side of the lubricant passageway. The diaphragm having a protuberance on the side of the diaphragm facing the passageway and sized to enter and close the passageway. The body, seal, and diaphragm being assembled into a unitary cartridge for introduction into the bit as a unit.

摘要翻译： 用于密封轴承类型的滚子锥钻头的压力补偿组件。 补偿组件包括中空体，其被布置成装配在与钻头的润滑系统连接的钻头中的空腔中，并且中空体包括从其延伸穿过的常开润滑剂通道。 密封件在润滑剂通道的一侧上环绕主体并且被布置成密封地接合钻头，并且弹性的杯形隔膜位于主体上，并且具有唇部，其设置成密封地接合润滑剂另一侧上的钻头 通道。 隔膜在隔膜的面向通道的侧面具有突起，并且尺寸适于进入和关闭通道。 主体，密封件和隔膜被组装成一体式墨盒，用于作为一个单元引入钻头。

公开(公告)号：US06213228B1

公开(公告)日：2001-04-10

申请号：US09124173

申请日：1998-07-28

申请人： William C. Saxman

发明人： William C. Saxman

IPC分类号： E21B1024

CPC分类号： E21B10/24

摘要： A pressure compensating assembly for use in roller cone drilling bits of the sealed bearing type. The compensating assembly includes a hollow body arranged to fit into a cavity in the bit connected with the lubrication system of the bit and the hollow body includes a normally open lubricant passageway extending therethrough. A seal encircles the body on one side of the lubricant passageway and is arranged to sealingly engage the bit and an elastomeric, cup-shaped diaphragm is located on the body and has a lip arranged to sealingly engage the bit on the other side of the lubricant passageway. The diaphragm having a protuberance on the side of the diaphragm facing the passageway and sized to enter and close the passageway. The body, seal, and diaphragm being assembled into a unitary cartridge for introduction into the bit as a unit.

摘要翻译： 用于密封轴承类型的滚子锥钻头的压力补偿组件。 补偿组件包括中空体，其被布置成装配在与钻头的润滑系统连接的钻头中的空腔中，并且中空体包括从其延伸穿过的常开润滑剂通道。 密封件在润滑剂通道的一侧上环绕主体并且被布置成密封地接合钻头，并且弹性的杯形隔膜位于主体上，并且具有唇部，其设置成密封地接合润滑剂另一侧上的钻头 通道。 隔膜在隔膜的面向通道的侧面具有突起，并且尺寸适于进入和关闭通道。 主体，密封件和隔膜被组装成一体式墨盒，用于作为一个单元引入钻头。

公开(公告)号：US5429201A

公开(公告)日：1995-07-04

申请号：US178568

申请日：1994-01-07

申请人： William C. Saxman

发明人： William C. Saxman

IPC分类号： E21B10/10 ,  E21B10/16 ,  E21B10/28

CPC分类号： E21B10/10 ,  E21B10/16 ,  E21B10/28

摘要： A drill bit includes a rolling cutter having a plurality of circumferential rows of teeth protruding from the body of the cutter. At least one of the rows of teeth is a closed-end circumferential row located on the surface of the cutter along a closed-end circumferential path. The latter is a non-circular curve defined by a surface intersecting the body of the cutter obliquely with respect to its longitudinal axis.

摘要翻译： 钻头包括具有从切割器主体突出的多个周向排齿的滚动切割器。 齿排中的至少一排是沿封闭端圆周路径位于切割器表面上的封闭端周向列。 后者是由相对于其纵向轴线倾斜地与切割器主体相交的表面限定的非圆形曲线。