公开(公告)号：US20050284660A1

公开(公告)日：2005-12-29

申请号：US11214524

申请日：2005-08-30

申请人： Mark Dykstra ,  William Heuser ,  Michael Doster ,  Theodore Zaleski ,  Jack Oldham ,  Terry Watts ,  Daniel Ruff ,  Rodney Walzel ,  Christopher Beuershausen

发明人： Mark Dykstra ,  William Heuser ,  Michael Doster ,  Theodore Zaleski ,  Jack Oldham ,  Terry Watts ,  Daniel Ruff ,  Rodney Walzel ,  Christopher Beuershausen

IPC分类号： E21B10/42 ,  E21B10/43 ,  E21B10/46 ,  E21B10/56 ,  E21B10/567 ,  E21B10/573 ,  E21B12/04 ,  E21B10/08

CPC分类号： E21B10/43 ,  E21B10/42 ,  E21B10/46 ,  E21B10/567 ,  E21B10/573 ,  E21B12/04 ,  E21B2010/566

摘要： A rotary drag bit and method for drilling subterranean formations, including a bit body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation material cut per bit rotation, as well as to control the amount of torque experienced by the bit and an optionally associated bottomhole assembly regardless of the effective weight-on-bit are all disclosed. The exterior of the bit preferably includes a plurality of blade structures carrying at least one such cutter thereon and including a sufficient amount of bearing surface area to contact the formation so as to generally distribute an additional weight applied to the bit against the bottom of the borehole without exceeding the compressive strength of the formation rock.

公开(公告)号：US20060278436A1

公开(公告)日：2006-12-14

申请号：US11507279

申请日：2006-08-21

申请人： Mark Dykstra ,  William Heuser ,  Michael Doster ,  Theodore Zaleski ,  Jack Oldham ,  Terry Watts ,  Daniel Ruff ,  Rodney Walzel ,  Christopher Beuershausen

发明人： Mark Dykstra ,  William Heuser ,  Michael Doster ,  Theodore Zaleski ,  Jack Oldham ,  Terry Watts ,  Daniel Ruff ,  Rodney Walzel ,  Christopher Beuershausen

IPC分类号： E21B10/62

CPC分类号： E21B10/43 ,  E21B10/42 ,  E21B10/46 ,  E21B10/567 ,  E21B10/573 ,  E21B12/04 ,  E21B2010/566

摘要： A rotary drilling apparatus and method for drilling subterranean formations, including a body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation material cut per rotation of the drilling apparatus, as well as to control the amount of torque experienced by the drilling apparatus and an optionally associated bottomhole assembly regardless of the effective weight-on-bit are all disclosed. The exterior of the drilling apparatus may include a plurality of blade structures carrying at least one such cutter thereon and including a sufficient amount of bearing surface area to contact the formation so as to generally distribute an additional weight applied to the drilling apparatus against the bottom of the borehole without exceeding the compressive strength of the formation rock.

摘要翻译： 一种用于钻探地下地层的旋转钻井设备和方法，包括：主体，其上设置有至少一个切割器，其上展现出减少或限制地暴露于地层，以便控制至少一个切割器的切割深度， 以便控制钻孔设备每旋转切割成形材料的体积，以及控制钻孔设备和任选相关的井下组件所经历的扭矩的数量，而不管有效的钻头位置如何。 钻孔设备的外部可以包括多个叶片结构，其在其上承载至少一个这样的切割器，并且包括足够量的轴承表面面积以接触地层，以便大体上分配施加到钻孔设备的附加重量， 钻孔不超过地层岩石的抗压强度。

公开(公告)号：US20080066581A1

公开(公告)日：2008-03-20

申请号：US11947613

申请日：2007-11-29

申请人： Anton Zahradnik ,  Eric Sullivan ,  R. Smith ,  Daniel Ruff ,  Danielle Roberts ,  Alan Massey

发明人： Anton Zahradnik ,  Eric Sullivan ,  R. Smith ,  Daniel Ruff ,  Danielle Roberts ,  Alan Massey

IPC分类号： B21K5/10 ,  E21B10/43 ,  E21B10/54

CPC分类号： B23K31/02 ,  E21B10/00 ,  E21B10/42

摘要： A shank configuration for rotary drill bits, is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.

摘要翻译： 公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。 柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。 可变形元件可以设置在柄和钻头体之间。 另外，柄可以包含碳当量小于约0.35％的材料。 可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。 此外，可以在多遍焊缝内形成应力状态。 还公开了一种制造方法。

公开(公告)号：US20060213693A1

公开(公告)日：2006-09-28

申请号：US11090932

申请日：2005-03-25

申请人： Anton Zahradnik ,  Eric Sullivan ,  R. Smith ,  Daniel Ruff ,  Danielle Roberts ,  Alan Massey

发明人： Anton Zahradnik ,  Eric Sullivan ,  R. Smith ,  Daniel Ruff ,  Danielle Roberts ,  Alan Massey

IPC分类号： E21B10/36

CPC分类号： B23K31/02 ,  E21B10/00 ,  E21B10/42

摘要： A shank configuration for rotary drill bits, is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.

摘要翻译： 公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。 柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。 可变形元件可以设置在柄和钻头体之间。 另外，柄可以包含碳当量小于约0.35％的材料。 可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。 此外，可以在多遍焊缝内形成应力状态。 还公开了一种制造方法。

公开(公告)号：US20080066970A1

公开(公告)日：2008-03-20

申请号：US11947624

申请日：2007-11-29

申请人： Anton Zahradnik ,  Eric Sullivan ,  R. Smith ,  Daniel Ruff ,  Danielle Roberts ,  Alan Massey

发明人： Anton Zahradnik ,  Eric Sullivan ,  R. Smith ,  Daniel Ruff ,  Danielle Roberts ,  Alan Massey

IPC分类号： E21B3/00

CPC分类号： B23K31/02 ,  E21B10/00 ,  E21B10/42

摘要： A shank configuration for rotary drill bits, is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.

摘要翻译： 公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。 柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。 可变形元件可以设置在柄和钻头体之间。 另外，柄可以包含碳当量小于约0.35％的材料。 可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。 此外，可以在多遍焊缝内形成应力状态。 还公开了一种制造方法。