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公开(公告)号：US07819208B2
公开(公告)日：2010-10-26
申请号：US12179915
申请日：2008-07-25
IPC分类号： E21B10/14
CPC分类号： E21B10/14
摘要： An earth-boring bit comprising a bit body configured at its upper extent for connection into a drillstring. A selected number of fixed blades extend downward from the bit body and a selected number of rolling cutters are mounted for rotation on the bit body. A plurality of rolling-cutter cutting elements are arranged on each rolling cutter and a plurality of fixed-blade cutting elements are arranged on each fixed blade. The selected number of fixed blades exceeds the selected number of rolling cutters by at least one.
摘要翻译： 一种钻地钻头，包括在其上部配置的钻头体，用于连接到钻柱。 选定数量的固定刀片从钻头体向下延伸，并且选择数量的滚刀被安装用于在钻头体上旋转。 在每个轧制刀具上设置有多个轧机切割元件，并且在每个固定刀片上布置有多个固定刀片切割元件。 所选数量的固定刀片至少超过选定数量的滚刀。
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公开(公告)号：US20100018777A1
公开(公告)日：2010-01-28
申请号：US12179915
申请日：2008-07-25
IPC分类号： E21B10/16
CPC分类号： E21B10/14
摘要： An earth-boring bit comprising a bit body configured at its upper extent for connection into a drillstring. A selected number of fixed blades extend downward from the bit body and a selected number of rolling cutters are mounted for rotation on the bit body. A plurality of rolling-cutter cutting elements are arranged on each rolling cutter and a plurality of fixed-blade cutting elements are arranged on each fixed blade. The selected number of fixed blades exceeds the selected number of rolling cutters by at least one.
摘要翻译： 一种钻地钻头，包括在其上部配置的钻头体，用于连接到钻柱。 选定数量的固定刀片从钻头体向下延伸，并且选择数量的滚刀被安装用于在钻头体上旋转。 在每个轧制刀具上设置有多个轧机切割元件，并且在每个固定刀片上布置有多个固定刀片切割元件。 所选数量的固定刀片至少超过选定数量的滚刀。
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公开(公告)号：US07845435B2
公开(公告)日：2010-12-07
申请号：US12061536
申请日：2008-04-02
申请人： Anton F. Zahradnik , Rudolf Carl Pessier , Don Q. Nguyen , Michael Steven Damschen , Karlos B. Cepeda , Tim King Marvel , Matt Meiners
发明人： Anton F. Zahradnik , Rudolf Carl Pessier , Don Q. Nguyen , Michael Steven Damschen , Karlos B. Cepeda , Tim King Marvel , Matt Meiners
CPC分类号： E21B10/14
摘要： A hybrid drill bit having both roller cones and fixed blades is disclosed, and a method of drilling. The cutting elements on the fixed blades form a continuous cutting profile from the perimeter of the bit body to the axial center. The roller cone cutting elements overlap with the fixed cutting elements in the nose and shoulder sections of the cutting profile between the axial center and the perimeter. The roller cone cutting elements crush and pre- or partially fracture formation in the confined and highly stressed nose and shoulder sections.
摘要翻译： 公开了一种具有滚子锥和固定叶片的混合钻头，以及一种钻孔方法。 固定刀片上的切割元件从钻头体的周边到轴向中心形成连续的切割轮廓。 滚子锥形切割元件与轴向中心和周边之间的切割轮廓的鼻部和肩部中的固定切割元件重叠。 滚子锥切割元件在受限和受应力高的鼻子和肩部部分挤压和预先或部分断裂形成。
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公开(公告)号：US20080264695A1
公开(公告)日：2008-10-30
申请号：US12061536
申请日：2008-04-02
申请人： Anton F. Zahradnik , Rudolf Carl Pessier , Don Q. Nguyen , Michael Steven Damschen , Karlos B. Cepeda , Tim King Marvel , Matt Meiners
发明人： Anton F. Zahradnik , Rudolf Carl Pessier , Don Q. Nguyen , Michael Steven Damschen , Karlos B. Cepeda , Tim King Marvel , Matt Meiners
IPC分类号： E21B10/14
CPC分类号： E21B10/14
摘要： A hybrid drill bit having both roller cones and fixed blades is disclosed, and a method of drilling. The cutting elements on the fixed blades form a continuous cutting profile from the perimeter of the bit body to the axial center. The roller cone cutting elements overlap with the fixed cutting elements in the nose and shoulder sections of the cutting profile between the axial center and the perimeter. The roller cone cutting elements crush and pre- or partially fracture formation in the confined and highly stressed nose and shoulder sections.
摘要翻译： 公开了一种具有滚子锥和固定叶片的混合钻头，以及一种钻孔方法。 固定刀片上的切割元件从钻头体的周边到轴向中心形成连续的切割轮廓。 滚子锥形切割元件与轴向中心和周边之间的切割轮廓的鼻部和肩部中的固定切割元件重叠。 滚子锥切割元件在受限和受应力高的鼻子和肩部部分挤压和预先或部分断裂形成。
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5.发明授权Hybrid drill bit with fixed cutters as the sole cutting elements in the axial center of the drill bit 有权混合钻头采用固定刀具作为钻头轴向中心的唯一切削元件公开(公告)号：US07841426B2
公开(公告)日：2010-11-30
申请号：US11784025
申请日：2007-04-05
申请人： Anton F. Zahradnik , Rolf Carl Pessier , Don Q. Nguyen , Michael Steven Damschen , Karlos B. Cepeda , Tim King Marvel , Matt Meiners
发明人： Anton F. Zahradnik , Rolf Carl Pessier , Don Q. Nguyen , Michael Steven Damschen , Karlos B. Cepeda , Tim King Marvel , Matt Meiners
IPC分类号： E21B10/14
摘要： A hybrid drill bit having both roller cones and fixed blades is disclosed. The cutting elements on the fixed blades form a continuous cutting profile from the perimeter of the bit body to the axial center. The roller cone cutting elements overlap with the fixed cutting elements in the nose and shoulder sections of the cutting profile between the axial center and the perimeter. The roller cone cutting elements crush and pre-fracture formation in the weak and highly stressed nose and shoulder sections.
摘要翻译： 公开了一种具有滚筒锥和固定叶片的混合钻头。 固定刀片上的切割元件从钻头体的周边到轴向中心形成连续的切割轮廓。 滚子锥形切割元件与轴向中心和周边之间的切割轮廓的鼻部和肩部中的固定切割元件重叠。 滚子锥切割元件在弱和高应力的鼻子和肩部部分中挤压和预先断裂形成。
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公开(公告)号：US08356398B2
公开(公告)日：2013-01-22
申请号：US13019929
申请日：2011-02-02
申请人： Ron D. McCormick , Rolf Carl Pessier , Don Q. Nguyen , Tim King Marvel , Matthew R. Isbell , Anton F. Zahradnik , Karlos B. Cepeda , Michael Steven Damschen , Steven M. Winnon
发明人： Ron D. McCormick , Rolf Carl Pessier , Don Q. Nguyen , Tim King Marvel , Matthew R. Isbell , Anton F. Zahradnik , Karlos B. Cepeda , Michael Steven Damschen , Steven M. Winnon
CPC分类号： E21B10/14 , E21B10/24 , E21B10/62 , Y10T29/49947 , Y10T29/49948 , Y10T29/49963
摘要： An earth-boring bit comprising a bit body is configured at its upper end for connection into a drillstring. A fixed blade depends axially downwardly from the bit body. An axially extending slot is formed in the bit body adjacent the fixed blade. A bit leg is received and retained in the slot by engagement between the slot and correspondingly shaped bit leg, wherein the bit leg cannot be removed from the slot except by axial movement relative to the bit body. A rolling cutter is secured to the bit leg at its lower extent. A fastener secures the bit leg against movement relative to the bit body and extends through oblong apertures in the bit leg and into the bit body, the bit leg can be moved axially relative to the bit body to adjust the projection of the rolling cutter relative to the fixed blade.
摘要翻译： 包括钻头体的钻孔位于其上端，用于连接到钻柱中。 固定刀片从钻头体轴向向下。 位于固定刀片附近的钻头体中形成有轴向延伸的槽。 一个小腿被接收并通过槽和对应的成形的位腿之间的接合保持在槽中，其中除了通过相对于钻头体的轴向运动之外，钻头腿不能从槽中移除。 滚刀在其较小的范围内固定在钻头腿上。 紧固件固定位腿抵抗相对于钻头体的运动，并且延伸穿过钻头腿中的长方形孔并进入钻头体，钻头腿可以相对于钻头体轴向移动，以调节滚刀的凸起相对于 固定刀片。
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7.发明申请Hybrid drill bit with fixed cutters as the sole cutting elements in the axial center of the drill bit 有权混合钻头采用固定刀具作为钻头轴向中心的唯一切削元件公开(公告)号：US20080296068A1
公开(公告)日：2008-12-04
申请号：US11784025
申请日：2007-04-05
申请人： Anton F. Zahradnik , Rolf Carl Pessier , Don Q. Nguyen , Michael Steven Damschen , Karlos B. Cepeda , Tim King Marvel , Matt Meiners
发明人： Anton F. Zahradnik , Rolf Carl Pessier , Don Q. Nguyen , Michael Steven Damschen , Karlos B. Cepeda , Tim King Marvel , Matt Meiners
IPC分类号： E21B10/06
摘要： A hybrid drill bit having both roller cones and fixed blades is disclosed. The cutting elements on the fixed blades form a continuous cutting profile from the perimeter of the bit body to the axial center. The roller cone cutting elements overlap with the fixed cutting elements in the nose and shoulder sections of the cutting profile between the axial center and the perimeter. The roller cone cutting elements crush and pre-fracture formation in the weak and highly stressed nose and shoulder sections.
摘要翻译： 公开了一种具有滚筒锥和固定叶片的混合钻头。 固定刀片上的切割元件从钻头体的周边到轴向中心形成连续的切割轮廓。 滚子锥形切割元件与轴向中心和周边之间的切割轮廓的鼻部和肩部中的固定切割元件重叠。 滚子锥切割元件在弱和高应力的鼻子和肩部部分中挤压和预先断裂形成。
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