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    Drill bit design for mitigation of stick slip
    1.
    发明授权
    Drill bit design for mitigation of stick slip 有权
    钻头设计，以减轻粘滑

    公开(公告)号：US09097065B2

    公开(公告)日：2015-08-04

    申请号：US13630780

    申请日：2012-09-28

    申请人： Baker Hughes Incorporated

    发明人： Thorsten Schwefe ,  Hatem Oueslati ,  Leroy W. Ledgerwood, III ,  Jayesh R. Jain ,  Danielle M. Fuselier

    IPC分类号： E21B10/00 ,  E21B10/42 ,  G06F17/50

    CPC分类号： E21B10/00 ,  E21B10/42 ,  G06F17/5086

    摘要： A method of designing an earth-boring rotary drill bit includes designing a bit body and cutting elements of the drill bit such that features of the drill bit other than cutting elements engage and rub against a subterranean formation being drilled by the drill bit at depths-of-cut beyond, but close to, an intended median depth-of-cut, and such that the amount of rubbing area between such features and the formation increases at a relatively rapid rate as the depth-of-cut increases beyond the intended median depth-of-cut. Such methods may be employed to mitigate the occurrence of the “stick-slip” phenomenon during drilling. A method of fabricating a drill bit includes configuring a bit body and cutting elements in accordance with such a design. Earth-boring drill bits include a bit body and cutting elements so configured.

    摘要翻译： 设计镗孔旋转钻头的方法包括设计钻头的钻头体和切削元件，使得除了切削元件之外的钻头的特征与钻头钻深的地下岩层接合并摩擦， 但是接近于预期的中间切削深度，并且使得这些特征和形成之间的摩擦面积的量以相对较快的速率增加，因为切削深度增加超过预期的中值 深度切割。 可以采用这种方法来减轻钻井过程中“粘滑”现象的发生。 一种制造钻头的方法包括根据这种设计配置钻头体和切削元件。 钻孔钻头包括钻头体和如此配置的切削元件。

    MULTI-CHAMFER CUTTING ELEMENTS HAVING A SHAPED CUTTING FACE, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS, AND RELATED METHODS
    3.
    发明申请
    MULTI-CHAMFER CUTTING ELEMENTS HAVING A SHAPED CUTTING FACE, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS, AND RELATED METHODS 有权
    具有形状切割面的多切割切割元件，包括这种切割元件的接地工具及相关方法

    公开(公告)号：US20160069140A1

    公开(公告)日：2016-03-10

    申请号：US14480293

    申请日：2014-09-08

    申请人： BAKER HUGHES INCORPORATED

    发明人： Suresh G. Patel ,  David A. Stockey ,  Alejandro Flores ,  Anthony A. DiGiovanni ,  Danny E. Scott ,  Leroy W. Ledgerwood, III

    IPC分类号： E21B10/567 ,  E21B10/43

    CPC分类号： E21B10/5673 ,  B24D3/008 ,  B24D18/00 ,  B24D99/005 ,  C23C16/27 ,  E21B10/43 ,  E21B10/55 ,  E21B10/573 ,  E21B2010/425

    摘要： A cutting element for an earth-boring tool includes a substrate and volume of superabrasive material positioned on the substrate. The volume of superabrasive material includes a cutting face having at least one recess extending into the volume of superabrasive material and/or at least one protrusion extending outward from the volume of superabrasive material. The volume of superabrasive material includes a first chamfer surface having a peripheral edge and a radially innermost edge. The peripheral edge of the first chamfer surface is located proximate a cutting edge of the volume of superabrasive material. A radial width of the first chamfer surface is between about 0.002 inch and about 0.045 inch. The volume of superabrasive material also includes a second chamfer surface having a peripheral edge and a radially innermost edge. The peripheral edge of the second chamfer surface is located adjacent the radially innermost edge of the first chamfer surface.

    摘要翻译： 用于钻孔工具的切割元件包括定位在基底上的基底和体积超大的磨料。 超级磨料材料的体积包括切割面，该切割面具有至少一个延伸到超硬磨料材料体积中的凹部和/或从超硬磨料材料的体积向外延伸的至少一个突起。 超级磨料的体积包括具有周缘和径向最内边缘的第一倒角表面。 第一倒角表面的周边边缘位于超磨料材料体积的切割边缘附近。 第一倒角表面的径向宽度在约0.002英寸至约0.045英寸之间。 超级磨料的体积还包括具有周边边缘和径向最内边缘的第二倒角表面。 第二倒角表面的周缘位于第一倒角表面的径向最内边缘附近。

    DRILL BIT DESIGN FOR MITIGATION OF STICK SLIP
    4.
    发明申请
    DRILL BIT DESIGN FOR MITIGATION OF STICK SLIP 有权
    用于缓解滑块的钻头设计

    公开(公告)号：US20130081880A1

    公开(公告)日：2013-04-04

    申请号：US13630780

    申请日：2012-09-28

    申请人： Baker Hughes Incorporated

    发明人： Thorsten Schwefe ,  Hatem Oueslati ,  Leroy W. Ledgerwood, III ,  Jayesh R. Jain ,  Danielle M. Fuselier

    IPC分类号： E21B10/00 ,  B21K5/04 ,  G06F17/50

    CPC分类号： E21B10/00 ,  E21B10/42 ,  G06F17/5086

    摘要： A method of designing an earth-boring rotary drill bit includes designing a bit body and cutting elements of the drill bit such that features of the drill bit other than cutting elements engage and rub against the subterranean formation being drilled by the drill bit at depths-of-cut beyond, but close to, an intended median depth-of-cut, and such that the amount of rubbing area between such features and the formation increases at a relatively rapid rate as the depth-of-cut increases beyond the intended median depth-of-cut. Such methods may be employed to mitigate the occurrence of the stick-slip phenomenon during drilling. A method of fabricating a drill bit includes configuring a bit body and cutting elements in accordance with such a design. Earth-boring drill bits include a bit body and cutting elements so configured.

    摘要翻译： 一种设计钻孔旋转钻头的方法包括设计钻头的钻头和切削元件，使得除了切削元件之外的钻头的特征与钻头在深度钻孔的地层接合并摩擦， 但是接近于预期的中间切削深度，并且使得这些特征和形成之间的摩擦面积的量以相对较快的速率增加，因为切削深度增加超过预期的中值 深度切割。 可以采用这种方法来减轻钻孔过程中粘滑现象的发生。 一种制造钻头的方法包括根据这种设计配置钻头体和切削元件。 钻孔钻头包括钻头体和如此配置的切削元件。