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1.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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2.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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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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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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公开(公告)号：US20100288561A1
公开(公告)日：2010-11-18
申请号：US12465377
申请日：2009-05-13
申请人： Anton F. Zahradnik , Ron D. McCormick , Rudolf C. Pessier , Jack T. Oldham , Michael S. Damschen , Don Q. Nguyen , Matt Meiners , Karlos B. Cepeda , Mark P. Blackman
发明人： Anton F. Zahradnik , Ron D. McCormick , Rudolf C. Pessier , Jack T. Oldham , Michael S. Damschen , Don Q. Nguyen , Matt Meiners , Karlos B. Cepeda , Mark P. Blackman
摘要： A bit body is configured at its upper extent for connection into a drillstring. At least one fixed blade extends downwardly from the bit body, and has a radially outermost gage surface. A plurality of fixed cutting elements is secured to the fixed blade, preferably in a row at its rotationally leading edge. At least one bit leg is secured to the bit body and a rolling cutter is mounted for rotation on the bit leg. At least one stabilizer pad is disposed between the bit leg and the fixed blade, the stabilizer pad extending radially outward to substantially the gage surface. The radially outermost gage surface of each blade can extend axially downward parallel to the bit axis or angled (non-parallel), spirally or helically, relative to the bit axis.
摘要翻译： 一个位体在其上部配置用于连接到一个钻柱。 至少一个固定刀片从钻头体向下延伸，并具有径向最外面的表面。 多个固定切割元件固定在固定刀片上，优选地在其旋转前缘处成行。 至少一个位腿被固定到钻头体上，并且滚动切割器被安装成用于在钻头腿上旋转。 至少一个稳定器垫设置在钻头腿和固定刀片之间，稳定器垫径向向外延伸到基本上为表面。 每个叶片的径向最外面的表面可以平行于钻头轴线轴向向下延伸，或相对于钻头轴线螺旋状或螺旋状地成角度（非平行）延伸。
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公开(公告)号：US08459378B2
公开(公告)日：2013-06-11
申请号：US12465377
申请日：2009-05-13
申请人： Anton F. Zahradnik , Ron D. McCormick , Rudolf C. Pessier , Jack T. Oldham , Michael S. Damschen , Don Q. Nguyen , Matt Meiners , Karlos B. Cepeda , Mark P. Blackman
发明人： Anton F. Zahradnik , Ron D. McCormick , Rudolf C. Pessier , Jack T. Oldham , Michael S. Damschen , Don Q. Nguyen , Matt Meiners , Karlos B. Cepeda , Mark P. Blackman
IPC分类号： E21B10/00
摘要： A bit body is configured at its upper extent for connection into a drillstring. At least one fixed blade extends downwardly from the bit body, and has a radially outermost gage surface. A plurality of fixed cutting elements is secured to the fixed blade, preferably in a row at its rotationally leading edge. At least one bit leg is secured to the bit body and a rolling cutter is mounted for rotation on the bit leg. At least one stabilizer pad is disposed between the bit leg and the fixed blade, the stabilizer pad extending radially outward to substantially the gage surface. The radially outermost gage surface of each blade can extend axially downward parallel to the bit axis or angled (non-parallel), spirally or helically, relative to the bit axis.
摘要翻译： 一个位体在其上部配置用于连接到一个钻柱。 至少一个固定刀片从钻头体向下延伸，并具有径向最外面的表面。 多个固定切割元件固定在固定刀片上，优选地在其旋转前缘处成行。 至少一个位腿被固定到钻头体上，并且滚动切割器被安装成用于在钻头腿上旋转。 至少一个稳定器垫设置在钻头腿和固定刀片之间，稳定器垫径向向外延伸到基本上为表面。 每个叶片的径向最外面的表面可以平行于钻头轴线轴向向下延伸，或相对于钻头轴线螺旋状或螺旋状地成角度（非平行）延伸。
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公开(公告)号：US20090126998A1
公开(公告)日：2009-05-21
申请号：US12271033
申请日：2008-11-14
申请人： Anton F. Zahradnik , Rudolf Carl Pessier , Don Q. Nguyen , Matthew J. Meiners , Karlos B. Cepeda , Michael S. Damschen , Mark P. Blackman , Jack T. Oldham , Ronny D. McCormick
发明人： Anton F. Zahradnik , Rudolf Carl Pessier , Don Q. Nguyen , Matthew J. Meiners , Karlos B. Cepeda , Michael S. Damschen , Mark P. Blackman , Jack T. Oldham , Ronny D. McCormick
摘要： A hybrid earth-boring bit comprising a bit body having a central axis, at least one, preferably three fixed blades, depending downwardly from the bit body, each fixed blade having a leading edge, and at least one rolling cutter, preferably three rolling cutters, mounted for rotation on the bit body. A rolling cutter is located between two fixed blades.
摘要翻译： 一种混合式钻孔钻头，包括具有中心轴线的钻头体，至少一个，优选三个固定刀片，从钻头体向下倾斜，每个固定刀片具有前缘，以及至少一个滚刀，优选三个滚刀 ，安装在钻头体上旋转。 轧机位于两个固定刀片之间。
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公开(公告)号：US08678111B2
公开(公告)日：2014-03-25
申请号：US12271033
申请日：2008-11-14
申请人： Anton F. Zahradnik , Rudolf Carl Pessier , Don Q. Nguyen , Matthew J. Meiners , Karlos B. Cepeda , Michael S. Damschen , Mark P. Blackman , Jack T. Oldham , Ronny D. McCormick
发明人： Anton F. Zahradnik , Rudolf Carl Pessier , Don Q. Nguyen , Matthew J. Meiners , Karlos B. Cepeda , Michael S. Damschen , Mark P. Blackman , Jack T. Oldham , Ronny D. McCormick
摘要： A hybrid earth-boring bit comprising a bit body having a central axis, at least one, preferably three fixed blades, depending downwardly from the bit body, each fixed blade having a leading edge, and at least one rolling cutter, preferably three rolling cutters, mounted for rotation on the bit body. A rolling cutter is located between two fixed blades.
摘要翻译： 一种混合式钻孔钻头，包括具有中心轴线的钻头体，至少一个，优选三个固定刀片，从钻头体向下倾斜，每个固定刀片具有前缘，以及至少一个滚刀，优选三个滚刀 ，安装在钻头体上旋转。 轧机位于两个固定刀片之间。
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公开(公告)号：US20100071959A1
公开(公告)日：2010-03-25
申请号：US12238311
申请日：2008-09-25
申请人： Anton F. Zahradnik , Don Q. Nguyen , Eric Sullivan , Terry J. Koltermann , Aaron J. Dick , Scott S. Shu
发明人： Anton F. Zahradnik , Don Q. Nguyen , Eric Sullivan , Terry J. Koltermann , Aaron J. Dick , Scott S. Shu
CPC分类号： F16C43/02 , E21B10/20 , E21B10/22 , F16C17/04 , F16C2352/00
摘要： An apparatus and method for retaining a roller cone on a bearing pin of a drillbit body.
摘要翻译： 一种用于将滚子锥体保持在钻孔体的轴承销上的装置和方法。
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