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1. 发明申请

WO2007140010A3 CUTTING STRUCTURE FOR EARTH-BORING BIT TO REDUCE TRACKING 审中-公开
标题翻译：用于地板钻头的切割结构以减少跟踪
公开(公告)号：WO2007140010A3
公开(公告)日：2008-01-17
申请号：PCT/US2007012642
申请日：2007-05-29
申请人： BAKER HUGHES INC , FELDERHOFF FLOYD , ISBELL MATTHEW R , PESSIER RUDOLF C
发明人： FELDERHOFF FLOYD , ISBELL MATTHEW R , PESSIER RUDOLF C
IPC分类号： E21B10/16
CPC分类号： E21B10/16
摘要： An earth boring bit has cutting elements arranged to avoid tracking. The bit has a bit body having a bit axis of rotation. First, second and third cones are rotatably mounted to the bit body, each of the cones having a plurality of rows of cutting elements including a heel row and an adjacent row. The heel row of the first cone has at least equal the number of cutting elements as the heel rows of the other cones. The adjacent row of the second cone has at least 90 percent as many cutting elements as the heel row of the first cone. The heel row of the third cone has a pitch that is in the range from 20-50% greater than the heel rows of the first cone.
摘要翻译：地球钻头具有排列以避免跟踪的切割元件。该钻头具有一个具有位旋转轴的位体。首先，第二和第三锥体可旋转地安装到钻头体上，每个锥体具有多排切割元件，包括后跟行和相邻排。第一锥体的脚跟行至少等于其他锥体的跟部行的切割元件的数量。第二锥体的相邻行具有与第一锥体的后跟行一样多的切割元件的至少90％。第三锥体的后跟行具有比第一锥体的脚跟行大20-50％的间距。

2. 发明申请

WO2011017394A2 CUTTING ELEMENT PLACEMENT ON A FIXED CUTTER DRILL BIT TO REDUCE DIAMOND TABLE FRACTURE 审中-公开
标题翻译：切割元件放置在固定的切割钻头上，以减少钻石表的碎片
公开(公告)号：WO2011017394A2
公开(公告)日：2011-02-10
申请号：PCT/US2010044344
申请日：2010-08-04
申请人： BAKER HUGHES INC , GAVIA DAVID , FELDERHOFF FLOYD C , ISBELL MATTHEW R , DOSTER MICHAEL L
发明人： GAVIA DAVID , FELDERHOFF FLOYD C , ISBELL MATTHEW R , DOSTER MICHAEL L
IPC分类号： E21B10/42 , E21B10/54
CPC分类号： E21B10/43 , E21B10/55
摘要： A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface thereof covered by a portion of the blade. A backup cutter row comprising at least one cutter may also be included, and at least a portion of a cutting surface of at least some cutters in the backup cutter row is covered by a portion of the blade. Enhanced support for cutters is provided against impact loading.
摘要翻译：旋转牵引钻头包括主切割器行，其包括安装在叶片上的至少一个主切割器，主切割器列中的至少一些切割器具有其切割表面的一部分由叶片的一部分覆盖。还可以包括包括至少一个切割器的备用切割器排，并且备用切割器行中的至少一些切割器的切割表面的至少一部分被叶片的一部分覆盖。针对冲击载荷提供了对刀具的增强支撑。

3. 发明申请

WO2011017394A4 CUTTING ELEMENT PLACEMENT ON A FIXED CUTTER DRILL BIT TO REDUCE DIAMOND TABLE FRACTURE 审中-公开
标题翻译：在固定刀具钻头上切割元件以减少金刚石表面破裂
公开(公告)号：WO2011017394A4
公开(公告)日：2011-06-23
申请号：PCT/US2010044344
申请日：2010-08-04
申请人： BAKER HUGHES INC , GAVIA DAVID , FELDERHOFF FLOYD C , ISBELL MATTHEW R , DOSTER MICHAEL L
发明人： GAVIA DAVID , FELDERHOFF FLOYD C , ISBELL MATTHEW R , DOSTER MICHAEL L
IPC分类号： E21B10/42 , E21B10/54
CPC分类号： E21B10/43 , E21B10/55
摘要： A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface thereof covered by a portion of the blade. A backup cutter row comprising at least one cutter may also be included, and at least a portion of a cutting surface of at least some cutters in the backup cutter row is covered by a portion of the blade. Enhanced support for cutters is provided against impact loading.
摘要翻译：旋转刮刀头包括主切割器排，该主切割器排包括安装在刀片上的至少一个主切刀，主切刀行中的至少一些切刀具有由刀片的一部分覆盖的切割表面的一部分。还可以包括包括至少一个切割器的备用切割器排，并且备用切割器排中的至少一些切割器的切割表面的至少一部分被叶片的一部分覆盖。针对冲击载荷提供了对切割器的增强支持。

4. 发明申请

WO2008092130B1 ROTARY DRAG BIT AND METHODS THEREFOR 审中-公开
标题翻译：旋转拖动钻头及其方法
公开(公告)号：WO2008092130B1
公开(公告)日：2008-10-23
申请号：PCT/US2008052128
申请日：2008-01-25
申请人： BAKER HUGHES INC , MCCLAIN ERIC E , GAVIA DAVID , SNELL LANE E , HOINES JASON E , ISBELL MATTHEW R , DOSTER MICHAEL L
发明人： MCCLAIN ERIC E , GAVIA DAVID , SNELL LANE E , HOINES JASON E , ISBELL MATTHEW R , DOSTER MICHAEL L
IPC分类号： E21B10/43
CPC分类号： E21B10/55 , E21B10/43
摘要： A rotary drag bit includes a primary cutter row (141) comprising at least one primary cutter, and at least two additional cutters configured relative to one another (19, 20, 21). In one embodiment, the cutters are backup cutters of a cutter group located in respective first and second trailing cutter rows (153), oriented relative to one another, and positioned to substantially follow the at least one primary cutter The rotary drag bit life is extended by the backup cutter group, making the bit more durable and extending the life of the cutters In other of the embodiments, the cutters are configured to selectively engage a subterranean formation material being drilled, providing improved bit life and reduced stress upon the cutters Still other embodiments of rotary drag bits include backup cutter configurations having different backrake angles and siderake angles, including methods therefor.
摘要翻译：旋转刮刀钻头包括包括至少一个主切割器的主切割器行（141）和相对于彼此（19,20,21）构造的至少两个另外的切割器。在一个实施例中，切割器是位于相应的第一和第二拖尾切割器排（153）中的切割器组的后备切割器，其相对于彼此定向并且定位成基本跟随至少一个主切割器。旋转拖拉钻头寿命延长通过备用刀具组使钻头更耐用并且延长刀具的使用寿命。在其他实施例中，刀具被构造成选择性地接合正在钻探的地下地层材料，从而提供改善的钻头寿命并减小刀具上的应力。旋转刮刀钻头的实施例包括具有不同的后倾角和侧倾角的备用切割器配置，包括其方法。

5. 发明申请

WO2009135119A3 MODULAR HYBRID DRILL BIT 审中-公开
标题翻译：模块化混合钻头
公开(公告)号：WO2009135119A3
公开(公告)日：2010-02-25
申请号：PCT/US2009042514
申请日：2009-05-01
申请人： BAKER HUGHES INC , MCCORMICK RONNY , PESSIER RUDOLPH C O , NGUYEN DON Q , MARVEL TIM KING , ZAHRADNIK ANTON , DAMSCHEN MICHAEL STEVEN , CEPEDA KARLOS B , ISBELL MATTHEW R
发明人： MCCORMICK RONNY , PESSIER RUDOLPH C O , NGUYEN DON Q , MARVEL TIM KING , ZAHRADNIK ANTON , DAMSCHEN MICHAEL STEVEN , CEPEDA KARLOS B , ISBELL MATTHEW R
IPC分类号： E21B10/14 , E21B7/00 , E21B10/62
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, wherein 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. The slot defines a pair of generally opposed sides connected by a third side, the generally opposed sides being inclined toward one another to define a dovetail that corresponds with the shape of the bit leg. The bit body further comprises a shank that is configured for connection into the drillstring at its upper extent and has a generally cylindrical receptacle formed in its lower extent; and a bit body portion having a generally cylindrical upper extent, the receptacle being and dimensioned to receive the upper extent of the bit body, wherein the shank and bit body portions are secured together by welding.
摘要翻译：包括钻头本体的钻地钻头在其上端构造成用于连接到钻柱中。固定刀片从钻头体轴向向下悬挂。在与固定刀片相邻的钻头本体中形成轴向延伸的槽。通过槽与相应形状的钻头腿之间的接合，将钻头腿接收并保持在槽中，其中，除了通过相对于钻头体的轴向运动，钻头腿不能从槽移除。滚刀在其下部固定在钻头腿上。紧固件固定钻头腿以防止相对于钻头体的运动并且延伸穿过钻头腿中的长圆形孔并进入钻头体中，其中钻头腿可以相对于钻头体沿轴向运动以调节轧制刀具相对到固定刀片。槽限定了由第三侧连接的一对大致相对的侧面，大致相对的侧面朝向彼此倾斜以限定与钻头腿的形状对应的燕尾榫。钻头本体还包括构造成在其上部连接到钻柱中并且具有在其下部形成的大致圆柱形的容纳部的柄部; 以及具有大致圆柱形的上部延伸部分的钻头本体部分，所述容纳部的尺寸被设计成接收钻头本体的上部延伸部分，其中柄部和钻头本体部分通过焊接固定在一起。

6. 发明申请

WO2008091654A2 ROTARY DRAG BIT 审中-公开
标题翻译：旋转拖轮位
公开(公告)号：WO2008091654A2
公开(公告)日：2008-07-31
申请号：PCT/US2008000914
申请日：2008-01-24
申请人： BAKER HUGHES INC , SNELL LANE E , GAVIA DAVID , HOINES JASON E , HANFORD RYAN J , ISBELL MATTHEW R , MCCLAIN ERIC E , DOSTER MICHAEL L
发明人： SNELL LANE E , GAVIA DAVID , HOINES JASON E , HANFORD RYAN J , ISBELL MATTHEW R , MCCLAIN ERIC E , DOSTER MICHAEL L
IPC分类号： E21B10/43
CPC分类号： E21B10/55 , E21B10/43
摘要： A rotary drag bit includes a primary cutter row comprising at least one primary cutter and a multiple backup cutter group. The multiple backup cutter group comprises a first and second trailing cutter row, each comprising at least one cutter positioned to follow the at least one primary cutter. The rotary drag bit life is extended by the multiple backup cutter group, making the bit more durable and extending the life of the cutters. Further, the cutters of the multiple backup cutter group are configured to selectively engage a subterranean formation material being drilled, providing improved bit life and reduced stress upon the cutters. Other embodiments of rotary drag bits are provided.
摘要翻译：旋转牵引钻头包括主切割器行，其包括至少一个主切割器和多个备用切割器组。多个备用切割器组包括第一和第二拖尾切割器排，每个包括至少一个定位成跟随至少一个主切割器的切割器。旋转拖曳钻头寿命由多支撑刀具组延长，使钻头更耐用，延长刀具寿命。此外，多支撑切割器组的切割器构造成选择性地接合正被钻孔的地下地层材料，提供改善的钻头寿命并减小切割器上的应力。提供旋转阻力钻头的其他实施例。

7. 发明申请

WO2009135119A4 MODULAR HYBRID DRILL BIT 审中-公开
标题翻译：模块式混合钻头
公开(公告)号：WO2009135119A4
公开(公告)日：2010-04-29
申请号：PCT/US2009042514
申请日：2009-05-01
申请人： BAKER HUGHES INC , MCCORMICK RONNY , PESSIER RUDOLPH C O , NGUYEN DON Q , MARVEL TIM KING , ZAHRADNIK ANTON , DAMSCHEN MICHAEL STEVEN , CEPEDA KARLOS B , ISBELL MATTHEW R
发明人： MCCORMICK RONNY , PESSIER RUDOLPH C O , NGUYEN DON Q , MARVEL TIM KING , ZAHRADNIK ANTON , DAMSCHEN MICHAEL STEVEN , CEPEDA KARLOS B , ISBELL MATTHEW R
IPC分类号： E21B10/14 , E21B7/00 , E21B10/62
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, wherein 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. The slot defines a pair of generally opposed sides connected by a third side, the generally opposed sides being inclined toward one another to define a dovetail that corresponds with the shape of the bit leg. The bit body further comprises a shank that is configured for connection into the drillstring at its upper extent and has a generally cylindrical receptacle formed in its lower extent; and a bit body portion having a generally cylindrical upper extent, the receptacle being and dimensioned to receive the upper extent of the bit body, wherein the shank and bit body portions are secured together by welding.
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。轧机在其较小的范围内固定在钻头腿上。紧固件固定钻头腿相对于钻头体的运动，并延伸穿过钻头腿中的长方形孔并进入钻头体，其中钻头腿可以相对于钻头体轴向移动，以调节滚刀相对的突出到固定刀片。狭槽限定由第三侧连接的一对大致相对的侧面，大致相对的侧面相互倾斜以限定与钻头腿的形状对应的燕尾榫。钻头体还包括柄，其构造成用于在其上部部分处连接到钻柱中并且具有形成在其下部范围中的大致圆柱形的容置体; 并且具有大致圆柱形的上部的一部分主体部分，该容器的尺寸被设计成可容纳钻头体的上部范围，其中柄部和钻头本体部分通过焊接固定在一起。

8. 发明申请

WO2009064967A1 EARTH-BORING TOOLS ATTACHABLE TO A CASING STRING AND METHODS FOR THEIR MANUFACTURE 审中-公开
标题翻译：可套在套管上的地钻工具及其制造方法
公开(公告)号：WO2009064967A1
公开(公告)日：2009-05-22
申请号：PCT/US2008083528
申请日：2008-11-14
申请人： BAKER HUGHES INC , MCCLAIN ERIC E , ISBELL MATTHEW R , OLDHAM JACK THOMAS , THOMAS JOHN CLAYTON , BIRD MARC W
发明人： MCCLAIN ERIC E , ISBELL MATTHEW R , OLDHAM JACK THOMAS , THOMAS JOHN CLAYTON , BIRD MARC W
IPC分类号： E21B7/20 , E21B10/42 , E21B10/64
CPC分类号： E21B7/20 , E21B10/42 , E21B10/64 , Y10T29/49966
摘要： Casing bits include a crown having a substantially hollow interior. The bit crown has blades over a face portion thereof, the blades including a plurality of cutting elements attached thereto. The bit crown further includes a composite inlay (85) positioned at least within the substantially hollow interior. Casing bits also include case hardened outer surfaces radially outside the drill-out region. Casing bits further include short- substrate cutting elements. Methods of forming a casing bit are also disclosed.
摘要翻译：外壳钻头包括具有基本中空内部的顶部。钻头冠部在其表面部分上具有叶片，叶片包括附接到其上的多个切割元件。钻头冠还包括至少位于基本中空的内部内的复合嵌体（85）。套管钻头还包括在钻出区域径向外侧的表面硬化的外表面。套管钻头还包括短基体切割元件。还公开了形成套管钻头的方法。

9. 发明申请

WO2008091654B1 ROTARY DRAG BIT 审中-公开
标题翻译：旋转拖轮位
公开(公告)号：WO2008091654B1
公开(公告)日：2008-12-11
申请号：PCT/US2008000914
申请日：2008-01-24
申请人： BAKER HUGHES INC , SNELL LANE E , GAVIA DAVID , HOINES JASON E , HANFORD RYAN J , ISBELL MATTHEW R , MCCLAIN ERIC E , DOSTER MICHAEL L
发明人： SNELL LANE E , GAVIA DAVID , HOINES JASON E , HANFORD RYAN J , ISBELL MATTHEW R , MCCLAIN ERIC E , DOSTER MICHAEL L
IPC分类号： E21B10/43
CPC分类号： E21B10/55 , E21B10/43
摘要： A rotary drag bit (110) includes a primary cutter row (143) comprising at least one primary" cutter (11) and a multiple backup cutter, group (153). The multiple backup cutter group comprises a first and second trailing cutter row (154, 155), each comprising at least one cutter positioned to follow the at least one primary cutter. The rotary drag bit life is extended by the multiple backup cutter group, making the bit more durable and extending the life of the cutters. Further, the cutters of the multiple backup cutter group are configured to selectively engage a subterranean formation material being drilled, providing improved bit life and reduced stress upon the cutters. Other embodiments of rotary drag bits are provided.
摘要翻译：旋转牵引钻头（110）包括主切割器列（143），其包括至少一个主“切割器（11）”和多个备用切割器组（153），多个备用切割器组包括第一和第二拖尾切割器排每个包括至少一个定位成跟随至少一个主切割器的切割器，通过多个备用切割器组延伸旋转拖刀的寿命，使钻头更耐用并延长切割器的使用寿命，此外，多个备用切割器组的切割器被配置为选择性地接合正被钻孔的地下成形材料，提供改善的钻头寿命并减小切割器上的应力。提供旋转拖曳钻头的其它实施例。

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