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公开(公告)号：CA2675070A1
公开(公告)日：2008-07-31
申请号：CA2675070
申请日：2008-01-24
Applicant: BAKER HUGHES INC
Inventor： DOSTER MICHAEL L , MCCLAIN ERIC E , SNELL LANE E , GAVIA DAVID , HOINES JASON E , HANFORD RYAN J , ISBELL MATTHEW R
IPC: E21B10/43
Abstract: 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). T he multiple backup cutter group comprises a first and second trailing cutter row (154, 155), each comprising at least one cutter positioned to follow th e at least one primary cutter. The rotary drag bit life is extended by the m ultiple backup cutter group, making the bit more durable and extending the l ife of the cutters. Further, the cutters of the multiple backup cutter group are configured to selectively engage a subterranean formation material bein g drilled, providing improved bit life and reduced stress upon the cutters. Other embodiments of rotary drag bits are provided.
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公开(公告)号：CA2675070C
公开(公告)日：2012-05-29
申请号：CA2675070
申请日：2008-01-24
Applicant: BAKER HUGHES INC
Inventor： SNELL LANE E , GAVIA DAVID , HOINES JASON E , HANFORD RYAN J , ISBELL MATTHEW R , MCCLAIN ERIC E , DOSTER MICHAEL L
IPC: E21B10/43
Abstract: 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.
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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
Applicant: BAKER HUGHES INC , SNELL LANE E , GAVIA DAVID , HOINES JASON E , HANFORD RYAN J , ISBELL MATTHEW R , MCCLAIN ERIC E , DOSTER MICHAEL L
Inventor： SNELL LANE E , GAVIA DAVID , HOINES JASON E , HANFORD RYAN J , ISBELL MATTHEW R , MCCLAIN ERIC E , DOSTER MICHAEL L
IPC: E21B10/43
Abstract: 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.
Abstract translation: 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。
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Patent Agency Ranking
公开(公告)号：CA2675270C
公开(公告)日：2012-05-22
申请号：CA2675270
申请日：2008-01-25
Applicant: BAKER HUGHES INC
Inventor： MCCLAIN ERIC E , GAVIA DAVID , SNELL LANE E , HOINES JASON E , ISBELL MATTHEW R , DOSTER MICHAEL L
IPC: E21B10/43
Abstract: 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.
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公开(公告)号：CA2675270A1
公开(公告)日：2008-07-31
申请号：CA2675270
申请日：2008-01-25
Applicant: BAKER HUGHES INC
Inventor： DOSTER MICHAEL L , ISBELL MATTHEW R , HOINES JASON E , GAVIA DAVID , SNELL LANE E , MCCLAIN ERIC E
IPC: E21B10/43
Abstract: 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 cutt ers of a cutter group located in respective first and second trailing cutter rows (153), oriented relative to one another, and positioned to substantial ly follow the at least one primary cutter The rotary drag bit life is extend ed 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, prov iding improved bit life and reduced stress upon the cutters Still other embo diments of rotary drag bits include backup cutter configurations having diff erent backrake angles and siderake angles, including methods therefor.
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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
Applicant: BAKER HUGHES INC , SNELL LANE E , GAVIA DAVID , HOINES JASON E , HANFORD RYAN J , ISBELL MATTHEW R , MCCLAIN ERIC E , DOSTER MICHAEL L
Inventor： SNELL LANE E , GAVIA DAVID , HOINES JASON E , HANFORD RYAN J , ISBELL MATTHEW R , MCCLAIN ERIC E , DOSTER MICHAEL L
IPC: E21B10/43
Abstract: 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.
Abstract translation: 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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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
Applicant: BAKER HUGHES INC , MCCLAIN ERIC E , GAVIA DAVID , SNELL LANE E , HOINES JASON E , ISBELL MATTHEW R , DOSTER MICHAEL L
Inventor： MCCLAIN ERIC E , GAVIA DAVID , SNELL LANE E , HOINES JASON E , ISBELL MATTHEW R , DOSTER MICHAEL L
IPC: E21B10/43
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：WO2009058808A1
公开(公告)日：2009-05-07
申请号：PCT/US2008081510
申请日：2008-10-29
Applicant: BAKER HUGHES INC , GREEN JAMES C , DOSTER MICHAEL L , HOINES JASON E , WELCH ROBERT M , ROBERTS DANIELLE V
Inventor： GREEN JAMES C , DOSTER MICHAEL L , HOINES JASON E , WELCH ROBERT M , ROBERTS DANIELLE V
Abstract: A drill bit having a bit body includes a blade face surface on at least one blade extending longitudinally and radially outward over a face of the bit body. The blade face surface of the at least one blade includes a contact zone and a sweep zone. The sweep zone rotationally trials the contact zone with respect to a direction of intended bit rotation about a longitudinal axis of the bit body, which reduces rubbing contact when engaging with a subterranean formation.
Abstract translation: 具有钻头体的钻头包括在钻头体的表面上纵向和径向向外延伸的至少一个刀片上的刀片表面。 所述至少一个叶片的叶片表面包括接触区域和扫掠区域。 扫掠区域围绕钻头体的纵向轴线相对于预期的钻头旋转的方向旋转地试验接触区域，这在与地下地层接合时减少摩擦接触。
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