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    Casing and liner drilling shoes with portions configured to fail responsive to pressure, and related methods
    1.
    发明授权
    Casing and liner drilling shoes with portions configured to fail responsive to pressure, and related methods 有权
    套管和衬垫钻具，其配置为响应压力失效的部件及相关方法

    公开(公告)号：US08225887B2

    公开(公告)日：2012-07-24

    申请号：US13177874

    申请日：2011-07-07

    申请人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    发明人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    IPC分类号： E21B17/14 ,  E21B10/26 ,  E21B7/20

    CPC分类号： E21B10/55 ,  E21B7/20 ,  E21B10/08 ,  E21B10/26 ,  E21B10/42 ,  E21B10/567 ,  E21B17/07 ,  E21B17/14

    摘要： A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough. Cutting elements and methods of use may be included. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element may be included. Differing abrasive material amount, characteristics, and size of cutting elements may be included. Telescoping casing sections and bits may be included. Embodiments may include: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts.

    摘要翻译： 套管钻头，其可以包括复合结构，用于将套管部分钻入地下地层中，并且其可以包括构造成通过其钻孔的部分。 可以包括切割元件和使用方法。 可以包括粘合剂，焊料，电剥离材料和切割元件的钎焊固定。 可以包括不同的研磨材料量，特性和切割元件的尺寸。 可以包括伸缩套管段和位。 实施例可以包括：从鼻部延伸的至少一个量具部分，形成在多个叶片中的至少一个叶片中的至少一个旋转拖尾槽，可移动刀片，包括超级磨料的前端面，钻井液中的至少一个 喷嘴和套筒，用于优先破坏的凹槽，固定到鼻部的至少一个滚动锥体，至少一个传感器，离散切割元件保持结构和冲击插入件。

    CASING SHOES HAVING DRILLABLE AND NON-DRILLABLE CUTTING ELEMENTS IN DIFFERENT REGIONS AND RELATED METHODS
    2.
    发明申请
    CASING SHOES HAVING DRILLABLE AND NON-DRILLABLE CUTTING ELEMENTS IN DIFFERENT REGIONS AND RELATED METHODS 有权
    具有不同区域可钻削和不可钻削切割元件的鞋子及相关方法

    公开(公告)号：US20110259606A1

    公开(公告)日：2011-10-27

    申请号：US13178144

    申请日：2011-07-07

    申请人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    发明人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    IPC分类号： E21B17/14 ,  E21B19/16

    CPC分类号： E21B10/55 ,  E21B7/20 ,  E21B10/08 ,  E21B10/26 ,  E21B10/42 ,  E21B10/567 ,  E21B17/07 ,  E21B17/14

    摘要： A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from a nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts.

    摘要翻译： 公开了一种套管钻头，其可以包括复合结构，用于将套管部分钻入地下地层中，并且其可以包括构造成穿过其中的部分。 公开了切割元件和使用方法。 公开了粘合剂，焊料，电解剥离材料和切割元件的钎焊固定。 公开了不同的研磨材料量，特性和切割元件的尺寸。 公开了伸缩套管段和钻头。 公开的方面和实施例包括：从鼻部延伸的至少一个量具部分，形成在多个叶片中的至少一个叶片中的至少一个旋转拖尾槽，可动刀片，包括超级磨料的前端面，至少一个 钻井液喷嘴和套筒，用于优先失效的槽，至少一个固定到鼻部的滚动锥体，至少一个传感器，离散切割元件保持结构和冲击插入件。

    Casing and liner drilling shoes having spiral blade configurations, and related methods
    3.
    发明授权
    Casing and liner drilling shoes having spiral blade configurations, and related methods 有权
    具有螺旋叶片配置的套管和衬板钻石鞋及相关方法

    公开(公告)号：US08167059B2

    公开(公告)日：2012-05-01

    申请号：US13178061

    申请日：2011-07-07

    申请人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    发明人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    IPC分类号： E21B7/14 ,  E21B7/20 ,  E21B17/22

    CPC分类号： E21B10/55 ,  E21B7/20 ,  E21B10/08 ,  E21B10/26 ,  E21B10/42 ,  E21B10/567 ,  E21B17/07 ,  E21B17/14

    摘要： A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from a nose portion, at least one rotationally trailing groove formed in at least one of a plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts.

    摘要翻译： 公开了一种套管钻头，其可以包括复合结构，用于将套管部分钻入地下地层中，并且其可以包括构造成穿过其中的部分。 公开了切割元件和使用方法。 公开了粘合剂，焊料，电解剥离材料和切割元件的钎焊固定。 公开了不同的研磨材料量，特性和切割元件的尺寸。 公开了伸缩套管段和钻头。 公开的方面和实施例包括：从鼻部延伸的至少一个量具部分，形成在多个叶片中的至少一个叶片中的至少一个旋转后缘槽，可动刀片，包括超级磨料材料的前端面，至少一个 钻井液喷嘴和套筒，用于优先失效的槽，至少一个固定到鼻部的滚动锥体，至少一个传感器，离散切割元件保持结构和冲击插入件。

    CASING SHOES INCLUDING CUTTING ELEMENTS, CUTTING ELEMENTS FOR EARTH-BORING TOOL, AND RELATED METHODS
    4.
    发明申请
    CASING SHOES INCLUDING CUTTING ELEMENTS, CUTTING ELEMENTS FOR EARTH-BORING TOOL, AND RELATED METHODS 审中-公开
    包括切割元件，切割元件，用于接地工具的外壳和相关方法

    公开(公告)号：US20110266069A1

    公开(公告)日：2011-11-03

    申请号：US13178103

    申请日：2011-07-07

    申请人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    发明人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    IPC分类号： E21B17/14 ,  E21B10/56

    CPC分类号： E21B10/55 ,  E21B7/20 ,  E21B10/08 ,  E21B10/26 ,  E21B10/42 ,  E21B10/567 ,  E21B17/07 ,  E21B17/14

    摘要： A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from a nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts.

    摘要翻译： 公开了一种套管钻头，其可以包括复合结构，用于将套管部分钻入地下地层中，并且其可以包括构造成穿过其中的部分。 公开了切割元件和使用方法。 公开了粘合剂，焊料，电解剥离材料和切割元件的钎焊固定。 公开了不同的研磨材料量，特性和切割元件的尺寸。 公开了伸缩套管段和钻头。 公开的方面和实施例包括：从鼻部延伸的至少一个量具部分，形成在多个叶片中的至少一个叶片中的至少一个旋转拖尾槽，可动刀片，包括超级磨料的前端面，至少一个 钻井液喷嘴和套筒，用于优先失效的槽，至少一个固定到鼻部的滚动锥体，至少一个传感器，离散切割元件保持结构和冲击插入件。

    CASING AND LINER DRILLING SHOES WITH PORTIONS CONFIGURED TO FAIL RESPONSIVE TO PRESSURE, AND RELATED METHODS
    5.
    发明申请
    CASING AND LINER DRILLING SHOES WITH PORTIONS CONFIGURED TO FAIL RESPONSIVE TO PRESSURE, AND RELATED METHODS 有权
    具有配置为对压力无效的部件的外壳和内衬钻孔鞋及相关方法

    公开(公告)号：US20110259608A1

    公开(公告)日：2011-10-27

    申请号：US13177874

    申请日：2011-07-07

    申请人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    发明人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    IPC分类号： E21B23/00 ,  E21B17/14

    CPC分类号： E21B10/55 ,  E21B7/20 ,  E21B10/08 ,  E21B10/26 ,  E21B10/42 ,  E21B10/567 ,  E21B17/07 ,  E21B17/14

    摘要： A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts.

    摘要翻译： 公开了一种套管钻头，其可以包括复合结构，用于将套管部分钻入地下地层中，并且其可以包括构造成穿过其中的部分。 公开了切割元件和使用方法。 公开了粘合剂，焊料，电解剥离材料和切割元件的钎焊固定。 公开了不同的研磨材料量，特性和切割元件的尺寸。 公开了伸缩套管段和钻头。 公开的方面和实施例包括：从鼻部延伸的至少一个量具部分，形成在多个叶片中的至少一个叶片中的至少一个旋转拖尾槽，可移动刀片，包括超级磨料的前端面，至少一个 钻井液喷嘴和套筒，用于优先失效的槽，至少一个固定到鼻部的滚动锥体，至少一个传感器，离散切割元件保持结构和冲击插入件。

    CASING AND LINER DRILLING BITS AND REAMERS, CUTTING ELEMENTS THEREFOR, AND METHODS OF USE
    6.
    发明申请
    CASING AND LINER DRILLING BITS AND REAMERS, CUTTING ELEMENTS THEREFOR, AND METHODS OF USE 有权
    铸造和内衬钻井钻头和钻头，切割元件及其使用方法

    公开(公告)号：US20080223575A1

    公开(公告)日：2008-09-18

    申请号：US12129308

    申请日：2008-05-29

    申请人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    发明人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    IPC分类号： E21B33/14

    CPC分类号： E21B10/55 ,  E21B7/20 ,  E21B10/08 ,  E21B10/26 ,  E21B10/42 ,  E21B10/567 ,  E21B17/07 ,  E21B17/14

    摘要： A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts.

    摘要翻译： 公开了一种套管钻头，其可以包括复合结构，用于将套管部分钻入地下地层中，并且其可以包括构造成穿过其中的部分。 公开了切割元件和使用方法。 公开了粘合剂，焊料，电解剥离材料和切割元件的钎焊固定。 公开了不同的研磨材料量，特性和切割元件的尺寸。 公开了伸缩套管段和钻头。 公开的方面和实施例包括：从鼻部延伸的至少一个量具部分，形成在多个叶片中的至少一个叶片中的至少一个旋转拖尾槽，可移动刀片，包括超级磨料的前端面，至少一个 钻井液喷嘴和套筒，用于优先失效的槽，至少一个固定到鼻部的滚动锥体，至少一个传感器，离散切割元件保持结构和冲击插入件。

    Casing and liner drilling shoes having integrated operational components, and related methods
    7.
    发明授权
    Casing and liner drilling shoes having integrated operational components, and related methods 有权
    具有集成运行部件的套管和衬板钻石鞋及相关方法

    公开(公告)号：US08297380B2

    公开(公告)日：2012-10-30

    申请号：US13177948

    申请日：2011-07-07

    申请人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    发明人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    IPC分类号： E21B17/14 ,  E21B10/26 ,  E21B7/20

    CPC分类号： E21B10/55 ,  E21B7/20 ,  E21B10/08 ,  E21B10/26 ,  E21B10/42 ,  E21B10/567 ,  E21B17/07 ,  E21B17/14

    摘要： Casing shoes comprise a nose portion having an inner profile and an outer profile. At least one cutting structure is on the outer profile. A stem section extends longitudinally from the nose portion. At least one of a float valve mechanism, a cementing stage tool, a float collar mechanism, and a landing collar structure is disposed within the stem section. Methods of installing sections of casing within wellbores comprise advancing the at least one section of casing into contact with subterranean formation material with a casing shoe attached thereto. At least one of a float valve mechanism, a cementing stage tool, a float collar mechanism, and a landing collar structure is carried within the casing shoe into the wellbore. The wellbore is drilled or reamed using at least one cutting structure on the casing shoe as the at least one section of casing is advanced into the wellbore.

    摘要翻译： 套管鞋包括具有内轮廓和外轮廓的鼻部。 外轮廓上至少有一个切割结构。 杆部从鼻部纵向延伸。 浮子阀机构，固井阶段工具，浮子轴环机构和着陆式结构中的至少一个设置在杆段内。 在井筒内安装套管的部分的方法包括使壳体的至少一个部分与附接到其上的套管靴接触地下成形材料。 浮动阀机构，固井阶段工具，浮子套环机构和着陆套环结构中的至少一个承载在套管内进入井眼。 当套管的至少一个部分进入井眼时，使用至少一个切割结构钻井或扩孔井筒。

    Casing shoes having drillable and non-drillable cutting elements in different regions and related methods
    8.
    发明授权
    Casing shoes having drillable and non-drillable cutting elements in different regions and related methods 有权
    套管鞋在不同区域具有可钻取和不可钻削切割元件及相关方法

    公开(公告)号：US08225888B2

    公开(公告)日：2012-07-24

    申请号：US13178144

    申请日：2011-07-07

    申请人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    发明人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    IPC分类号： E21B17/14 ,  E21B10/26 ,  E21B7/20

    CPC分类号： E21B10/55 ,  E21B7/20 ,  E21B10/08 ,  E21B10/26 ,  E21B10/42 ,  E21B10/567 ,  E21B17/07 ,  E21B17/14

    摘要： A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough. Cutting elements and methods of use may be included. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element may be included. Differing abrasive material amount, characteristics, and size of cutting elements may be included. Telescoping casing sections and bits may be included. Embodiments may include: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts.

    摘要翻译： 套管钻头，其可以包括复合结构，用于将套管部分钻入地下地层中，并且其可以包括构造成通过其钻孔的部分。 可以包括切割元件和使用方法。 可以包括粘合剂，焊料，电剥离材料和切割元件的钎焊固定。 可以包括不同的研磨材料量，特性和切割元件的尺寸。 可以包括伸缩套管段和位。 实施例可以包括：从鼻部延伸的至少一个量具部分，形成在多个叶片中的至少一个叶片中的至少一个旋转拖尾槽，可移动刀片，包括超级磨料的前端面，钻井液中的至少一个 喷嘴和套筒，用于优先破坏的凹槽，固定到鼻部的至少一个滚动锥体，至少一个传感器，离散切割元件保持结构和冲击插入件。

    Casing and liner drilling shoes having selected profile geometries, and related methods
    9.
    发明授权
    Casing and liner drilling shoes having selected profile geometries, and related methods 有权
    具有选定型材几何形状的套管和衬板钻孔鞋及相关方法

    公开(公告)号：US08205693B2

    公开(公告)日：2012-06-26

    申请号：US13177996

    申请日：2011-07-07

    申请人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    发明人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    IPC分类号： E21B17/14 ,  E21B10/26 ,  E21B7/20

    CPC分类号： E21B10/55 ,  E21B7/20 ,  E21B10/08 ,  E21B10/26 ,  E21B10/42 ,  E21B10/567 ,  E21B17/07 ,  E21B17/14

    摘要： A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough. Cutting elements and methods of use may be included. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element may be included. Differing abrasive material amount, characteristics, and size of cutting elements may be included. Telescoping casing sections and bits may be included. Embodiments may include: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts.

    摘要翻译： 套管钻头，其可以包括复合结构，用于将套管部分钻入地下地层中，并且其可以包括构造成通过其钻孔的部分。 可以包括切割元件和使用方法。 可以包括粘合剂，焊料，电剥离材料和切割元件的钎焊固定。 可以包括不同的研磨材料量，特性和切割元件的尺寸。 可以包括伸缩套管段和位。 实施例可以包括：从鼻部延伸的至少一个量具部分，形成在多个叶片中的至少一个叶片中的至少一个旋转拖尾槽，可移动刀片，包括超级磨料的前端面，钻井液中的至少一个 喷嘴和套筒，用于优先破坏的凹槽，固定到鼻部的至少一个滚动锥体，至少一个传感器，离散切割元件保持结构和冲击插入件。

    CASING AND LINER DRILLING SHOES HAVING SPIRAL BLADE CONFIGURATIONS, AND RELATED METHODS
    10.
    发明申请
    CASING AND LINER DRILLING SHOES HAVING SPIRAL BLADE CONFIGURATIONS, AND RELATED METHODS 有权
    具有螺旋叶片配置的铸造和内衬钻孔鞋及相关方法

    公开(公告)号：US20110259643A1

    公开(公告)日：2011-10-27

    申请号：US13178061

    申请日：2011-07-07

    申请人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    发明人： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

    IPC分类号： E21B7/00 ,  E21B17/14

    CPC分类号： E21B10/55 ,  E21B7/20 ,  E21B10/08 ,  E21B10/26 ,  E21B10/42 ,  E21B10/567 ,  E21B17/07 ,  E21B17/14

    摘要： A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts.

    摘要翻译： 公开了一种套管钻头，其可以包括复合结构，用于将套管部分钻入地下地层中，并且其可以包括构造成穿过其中的部分。 公开了切割元件和使用方法。 公开了粘合剂，焊料，电解剥离材料和切割元件的钎焊固定。 公开了不同的研磨材料量，特性和切割元件的尺寸。 公开了伸缩套管段和钻头。 公开的方面和实施例包括：从鼻部延伸的至少一个量具部分，形成在多个叶片中的至少一个叶片中的至少一个旋转拖尾槽，可移动刀片，包括超级磨料的前端面，至少一个 钻井液喷嘴和套筒，用于优先失效的槽，至少一个固定到鼻部的滚动锥体，至少一个传感器，离散切割元件保持结构和冲击插入件。