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：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：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。