公开(公告)号：US20080179108A1

公开(公告)日：2008-07-31

申请号：US12020492

申请日：2008-01-25

申请人： Eric E. McClain ,  David Gavia ,  Lane E. Snell ,  Jason E. Hoines ,  Matthew R. Isbell ,  Michael L. Doster

发明人： Eric E. McClain ,  David Gavia ,  Lane E. Snell ,  Jason E. Hoines ,  Matthew R. Isbell ,  Michael L. Doster

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 at least two additional cutters configured relative to one another. In one embodiment, the cutters are backup cutters of a cutter group located in respective first and second trailing cutter rows, 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： 旋转牵引钻头包括主切割器行，其包括至少一个主切割器，以及至少两个相对于彼此配置的附加切割器。 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行中的切割器组的备用切割器，其相对于彼此定向并且被定位成基本上跟随至少一个主切割器。 旋转拖曳钻头的寿命由后备刀具组延长，使钻头更耐用，延长刀具的使用寿命。 在其他实施例中，切割器被配置为选择性地接合正在钻孔的地下地层材料，提供改善的钻头寿命并减少切割器上的应力。 旋转拖曳钻头的其他实施例包括具有不同的反向角度和擒挡角度的后备刀具配置，包括其方法。

公开(公告)号：US07861809B2

公开(公告)日：2011-01-04

申请号：US12019814

申请日：2008-01-25

申请人： David Gavia ,  Ryan J. Hanford ,  Lane E. Snell ,  Jason E. Hoines ,  Matthew R. Isbell ,  Eric E. McClain ,  Michael L. Doster

发明人： David Gavia ,  Ryan J. Hanford ,  Lane E. Snell ,  Jason E. Hoines ,  Matthew R. Isbell ,  Eric E. McClain ,  Michael L. Doster

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 groups 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个支撑刀具组延长，使刀头更加耐用，延长刀具的使用寿命。 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，从而提供改善的钻头寿命并减小刀具上的应力。 提供旋转阻力钻头的其他实施例。

公开(公告)号：US07762355B2

公开(公告)日：2010-07-27

申请号：US12020492

申请日：2008-01-25

申请人： Eric E. McClain ,  David Gavia ,  Lane E. Snell ,  Jason E. Hoines ,  Matthew R. Isbell ,  Michael L. Doster

发明人： Eric E. McClain ,  David Gavia ,  Lane E. Snell ,  Jason E. Hoines ,  Matthew R. Isbell ,  Michael L. Doster

IPC分类号： E21B10/46

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 at least two additional cutters configured relative to one another. In one embodiment, the cutters are backup cutters of a backup cutter group located in respective first and second trailing cutter rows, 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： 旋转牵引钻头包括主切割器行，其包括至少一个主切割器，以及至少两个相对于彼此配置的附加切割器。 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行中的备用切割器组的备用切割器，其相对于彼此定向并且被定位成基本上跟随至少一个主切割器。 旋转拖曳钻头的寿命由后备刀具组延长，使钻头更耐用，延长刀具的使用寿命。 在其他实施例中，切割器被配置为选择性地接合正在钻孔的地下地层材料，提供改善的钻头寿命并减少切割器上的应力。 旋转拖曳钻头的其他实施例包括具有不同的反向角度和擒挡角度的后备刀具配置，包括其方法。

公开(公告)号：US20080179106A1

公开(公告)日：2008-07-31

申请号：US12019814

申请日：2008-01-25

申请人： David Gavia ,  Ryan J. Hanford ,  Lane E. Snell ,  Jason E. Hoines ,  Matthew R. Isbell ,  Eric E. McClain ,  Michael L. Doster

发明人： David Gavia ,  Ryan J. Hanford ,  Lane E. Snell ,  Jason E. Hoines ,  Matthew R. Isbell ,  Eric E. McClain ,  Michael L. Doster

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 groups 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个支撑刀具组延长，使刀头更加耐用，延长刀具的使用寿命。 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。

公开(公告)号：US09920614B2

公开(公告)日：2018-03-20

申请号：US13454359

申请日：2012-04-24

申请人： Tu Tien Trinh ,  Eric Sullivan ,  Lane E. Snell

发明人： Tu Tien Trinh ,  Eric Sullivan ,  Lane E. Snell

IPC分类号： E21B45/00

CPC分类号： E21B45/00

摘要： The disclosure, in one aspect, provides a method of drilling a wellbore that includes features of drilling the wellbore using a drilling assembly that includes a drill bit that further includes a weight sensor and a torque sensor, determining weight-on-bit using measurements from the weight sensor and torque-on-bit using measurement from the torque sensor during drilling of the wellbore, obtaining measurements for rotational speed of the drill bit and rate of penetration of the drill bit during drilling of the wellbore, determining mechanical specific energy of the bottomhole assembly using the determined weight-on-bit, torque-on-bit and obtained rotational speed of the drill bit and the obtained rate of penetration of the drill bit, and altering a drilling a parameter in response to the determined mechanical specific energy.

公开(公告)号：US20120279783A1

公开(公告)日：2012-11-08

申请号：US13454359

申请日：2012-04-24

申请人： Tu Tien Trinh ,  Eric Sullivan ,  Lane E. Snell

发明人： Tu Tien Trinh ,  Eric Sullivan ,  Lane E. Snell

IPC分类号： E21B7/04 ,  E21B47/024

CPC分类号： E21B45/00

摘要： The disclosure, in one aspect, provides a method of drilling a wellbore that includes features of drilling the wellbore using a drilling assembly that includes a drill bit that further includes a weight sensor and a torque sensor, determining weight-on-bit using measurements from the weight sensor and torque-on-bit using measurement from the torque sensor during drilling of the wellbore, obtaining measurements for rotational speed of the drill bit and rate of penetration of the drill bit during drilling of the wellbore, determining mechanical specific energy of the bottomhole assembly using the determined weight-on-bit, torque-on-bit and obtained rotational speed of the drill bit and the obtained rate of penetration of the drill bit, and altering a drilling a parameter in response to the determined mechanical specific energy.

摘要翻译： 在一个方面，本公开提供了一种钻井井的方法，其包括使用钻井组件钻井的特征，所述钻井组件包括钻头，该钻头组件还包括重量传感器和扭矩传感器，使用来自 重量传感器和钻头上的扭矩传感器在钻井期间使用来自扭矩传感器的测量，在钻井期间获得钻头的旋转速度和钻头的穿透速率的测量，确定钻井中的机械比能 使用所确定的钻头重量，钻头转矩和获得的钻头转速以及所获得的钻头的穿透速率，以及响应于所确定的机械比能而改变钻孔参数。