Drill bit assembly having electrically isolated gap joint for electromagnetic telemetry
    31.
    发明授权
    Drill bit assembly having electrically isolated gap joint for electromagnetic telemetry 有权
    钻头组件,具有用于电磁遥测的电隔离间隙接头

    公开(公告)号:US09109403B2

    公开(公告)日:2015-08-18

    申请号:US13266064

    申请日:2009-10-29

    摘要: A drill bit assembly having an electrically isolated gap joint for electromagnetic telemetry comprises a drill bit, a pin body, an electrically insulating gap joint therebetween, and an electrical conductor extending across the gap joint. The bit head has a cutting end and an opposite connecting end with an engagement section. The pin body has a tubular body with an axial bore therethrough, and comprises a connecting end with an engagement section. The pin body connecting end is connected to the bit head connecting end such that the engagement sections overlap. The electrically insulating gap joint fills an annular gap between the bit head and pin body engagement sections such that the bit head and pin body are mechanically connected together at the connecting ends but are electrically separated. The electrical conductor has one end electrically contacting one of the bit head and pin body, and the other end communicable with electronics equipment.

    摘要翻译: 具有用于电磁遥测的电隔离间隙接头的钻头组件包括钻头,销体,它们之间的电绝缘间隙接头以及横跨间隙接头延伸的电导体。 钻头头具有切割端和与接合部分相对的连接端。 销体具有一个具有穿过其中的轴向孔的管状体,并且包括具有接合部分的连接端。 销主体连接端连接到钻头头连接端,使得接合部分重叠。 电绝缘间隙接头填充钻头头和销体接合部分之间的环形间隙,使得钻头头和销体在连接端机械地连接在一起,但是电分离。 电导体的一端电接触钻头头和针体之一,另一端可与电子设备通信。

    ROTARY DRILL BITS WITH BACK-UP CUTTING ELEMENTS TO OPTIMIZE BIT LIFE
    33.
    发明申请
    ROTARY DRILL BITS WITH BACK-UP CUTTING ELEMENTS TO OPTIMIZE BIT LIFE 审中-公开
    具有备用切割元件的旋转钻头,优化钻头寿命

    公开(公告)号:US20150152689A1

    公开(公告)日:2015-06-04

    申请号:US14413902

    申请日:2012-09-05

    IPC分类号: E21B10/43 G06F17/50

    摘要: A multi-layer downhole drilling tool designed for drilling a wellbore including a plurality of formations is disclosed. The drilling tool includes a bit body including a rotational axis extending therethrough. A plurality of blades are disposed on exterior portions of the bit body. A plurality of primary cutting elements and a plurality of back-up cutting elements are disposed on exterior portions of the plurality of blades. The back-up cutting elements are track set with corresponding primary cutting elements, and each back-up cutting element is disposed on a different blade than the corresponding primary cutting element.

    摘要翻译: 公开了一种用于钻井包括多个地层的多层井下钻孔工具。 该钻具包括一个包括延伸穿过其中的旋转轴线的钻头体。 多个叶片设置在钻头体的外部部分上。 多个主切割元件和多个备用切割元件设置在多个叶片的外部部分上。 备用切割元件是具有相应的主切割元件的轨迹,并且每个备用切割元件设置在与相应的主切割元件不同的刀片上。

    Drill Bit Assembly Having Electrically Isolated Gap Joint for Measurement of Reservoir Properties
    34.
    发明申请
    Drill Bit Assembly Having Electrically Isolated Gap Joint for Measurement of Reservoir Properties 审中-公开
    具有电气隔离间隙接头的钻头组件用于测量储层性质

    公开(公告)号:US20150101867A1

    公开(公告)日:2015-04-16

    申请号:US14535228

    申请日:2014-11-06

    摘要: A drill bit assembly for measuring reservoir formation properties comprises a bit head and a pin body, and an electrically insulated gap joint between two conductive parts of the drill bit assembly. The electrically insulating gap joint can fill a gap between bit head and pin body engagement sections such that the bit head and pin body are mechanically connected together at connecting ends but electrically separated. Alternatively or additionally, the pin body can have two pieces which are separated by an electrically insulating gap joint. An electrical conductor is electrically connected at a first end to the bit head and is communicable at a second end with an alternating current signal to transmit an alternating current into the bit head, thereby inducing an electric current into a reservoir formation adjacent the bit head.

    摘要翻译: 用于测量储层形成性能的钻头组件包括钻头头和销体,以及在钻头组件的两个导电部件之间的电绝缘间隙接头。 电绝缘间隙接头可以填充钻头头和销体接合部分之间的间隙,使得钻头头和销体在连接端机械地连接在一起而电隔离。 或者或另外,销体可以具有由电绝缘间隙接头分开的两个部件。 电导体在第一端处电连接到钻头头部,并且可在第二端与交流电信号通信,以将交流电流传输到钻头头中,从而引入电流进入与钻头头相邻的储层结构。

    EARTH-BORING TOOLS AND METHODS OF FORMING EARTH-BORING TOOLS
    35.
    发明申请
    EARTH-BORING TOOLS AND METHODS OF FORMING EARTH-BORING TOOLS 审中-公开
    地球工具和形成地球工具的方法

    公开(公告)号:US20150041222A1

    公开(公告)日:2015-02-12

    申请号:US14522297

    申请日:2014-10-23

    摘要: Methods of fabricating earth-boring tools include forming an outer portion of an earth-boring tool from a powder mixture comprising hard particles and matrix particles comprising a metal matrix material, disposing a molten material at least partially within the outer portion of the earth-boring tool, and forming the molten material into another portion of the earth-boring tool. Methods of fabricating a bit body of an earth-boring rotary drill bit include forming an outer portion comprising a plurality of hard particles and a plurality of matrix particles comprising a metal matrix material and casting a molten material at least partially within the outer portion of the bit body to form another portion of the bit body. Earth-boring tools include a body for engaging a subterranean borehole having an outer portion and an inner portion comprising at least one material solidified within a cavity formed within the outer portion.

    摘要翻译: 制造钻孔工具的方法包括从包含硬质颗粒的粉末混合物和包含金属基体材料的基质颗粒形成钻孔工具的外部,将熔融材料至少部分地设置在钻孔的外部 工具,并将熔融材料形成到钻孔工具的另一部分。 制造钻头旋转钻头的钻头体的方法包括形成包括多个硬质颗粒的外部部分和包括金属基体材料的多个基质颗粒,并且至少部分地在熔融材料的外部部分内铸造熔融材料 钻头体形成钻头体的另一部分。 钻孔工具包括用于接合具有外部部分的地下钻孔的主体和包括在形成在外部部分内的空腔内固化的至少一种材料的内部部分。

    MANUFACTURE OF WELL TOOLS WITH MATRIX MATERIALS
    36.
    发明申请
    MANUFACTURE OF WELL TOOLS WITH MATRIX MATERIALS 有权
    用MATRIX材料制造好的工具

    公开(公告)号:US20140374171A1

    公开(公告)日:2014-12-25

    申请号:US14378992

    申请日:2012-05-30

    申请人: Jeffrey G. Thomas

    发明人: Jeffrey G. Thomas

    摘要: A method of manufacturing a well tool can include loading a matrix material into a mold, then sintering the matrix material in the mold; and then loading another matrix material into the mold. A well tool can include a longitudinal axis, an erosion resistant layer exposed to one or more erosive factors when the well tool is installed in a well, and a support layer which supports the erosion resistant layer. The erosion resistant and support layers can include respective matrix materials, and the erosion resistant layer can extend greater than approximately 1.27 cm in a direction parallel to the longitudinal axis. Another method of manufacturing a well tool can include forming a rigid layer from a powdered matrix material; and then infiltrating both that matrix material and another matrix material with a hot liquid binder material.

    摘要翻译: 制造井工具的方法可以包括将基质材料加载到模具中,然后在模具中烧结基质材料; 然后将另一种基质材料装入模具中。 井工具可以包括纵向轴线,当井工具安装在井中时暴露于一个或多个侵蚀因素的抗侵蚀层以及支撑抗侵蚀层的支撑层。 抗侵蚀和支撑层可以包括各自的基体材料,并且抗侵蚀层可以在平行于纵向轴线的方向上延伸大于约1.27cm。 制造井具的另一种方法可以包括从粉末状基体材料形成刚性层; 然后用热液体粘合剂材料渗透基质材料和另一种基质材料。

    METHODS OF FABRICATING CUTTING ELEMENTS FOR EARTH-BORING TOOLS AND METHODS OF SELECTIVELY REMOVING A PORTION OF A CUTTING ELEMENT OF AN EARTH-BORING TOOL
    37.
    发明申请
    METHODS OF FABRICATING CUTTING ELEMENTS FOR EARTH-BORING TOOLS AND METHODS OF SELECTIVELY REMOVING A PORTION OF A CUTTING ELEMENT OF AN EARTH-BORING TOOL 审中-公开
    制造用于接地工具的切割元件的方法和选择性地去除地埋工具的切割元件的部分的方法

    公开(公告)号:US20140353040A1

    公开(公告)日:2014-12-04

    申请号:US14461100

    申请日:2014-08-15

    摘要: Cutting elements for use with earth-boring tools include a cutting table having at least two sections where a boundary between the at least two sections is at least partially defined by a discontinuity formed in the cutting table. Earth-boring tools including a tool body and a plurality of cutting elements carried by the tool body. The cutting elements include a cutting table secured to a substrate. The cutting table includes a plurality of adjacent sections, each having a discrete cutting edge where at least one section is configured to be selectively detached from the substrate in order to substantially expose a cutting edge of an adjacent section. Methods for fabricating cutting elements for use with an earth-boring tool including forming a cutting table comprising a plurality of adjacent sections.

    摘要翻译: 用于钻孔工具的切割元件包括具有至少两个部分的切割台,其中至少两个部分之间的边界至少部分地由切割台中形成的不连续部分限定。 钻孔工具包括工具主体和由工具主体承载的多个切割元件。 切割元件包括固定到基底的切割台。 切割台包括多个相邻的部分,每个部分具有离散的切割边缘,其中至少一个部分被配置为从基板选择性地分离,以便基本上暴露相邻部分的切割边缘。 用于制造用于钻孔工具的切割元件的方法,包括形成包括多个相邻部分的切割台。

    BOTTOMHOLE ASSEMBLY DESIGN METHOD TO REDUCE ROTATIONAL LOADS
    38.
    发明申请
    BOTTOMHOLE ASSEMBLY DESIGN METHOD TO REDUCE ROTATIONAL LOADS 有权
    底部装配设计方法减少转动载荷

    公开(公告)号:US20140338977A1

    公开(公告)日:2014-11-20

    申请号:US13896866

    申请日:2013-05-17

    IPC分类号: E21B7/00

    摘要: A method for estimating a location for disposing a tool in a drill tubular having a drill bit includes performing a modal analysis of the drill tubular to determine natural eigenfrequencies and corresponding eigenmodes of torsional oscillations of the model and selecting a predominant natural eigenfrequency and corresponding eigenmode from the determined natural eigenfrequencies and corresponding eigenmodes. The method further includes performing a forced modal analysis of the drill tubular at the predominant eigenfrequency with a force or moment acting on the drill bit to provide a correlation between forced torsional deflection amplitude and position and estimating the position to be within a range of positions wherein a vibration qualification of the tool is greater or equal to the torsional deflection amplitude throughout the range.

    摘要翻译: 用于估计用于在具有钻头的钻杆中设置工具的位置的方法包括执行钻杆的模态分析以确定模型的扭转振荡的自然本征频率和相应的本征模,并且选择主要的自然本征频率和相应的本征模 确定的自然本征频率和相应的本征模式。 该方法还包括以主要本征频率对作用在钻头上的力或力矩执行对钻杆的强制模态分析,以提供强制扭转偏转幅度和位置之间的相关性,并将位置估计在其位置范围内 工具的振动限定大于或等于整个范围内的扭转偏转幅度。