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    • 2. 发明授权
    • Data transmission element for downhole drilling components
    • 用于井下钻井部件的数据传输元件
    • US06992554B2
    • 2006-01-31
    • US10707234
    • 2003-11-29
    • David R. HallH. Tracy Hall, Jr.David S. PixtonScott DahlgrenJoe FoxCameron SneddonMichael Briscoe
    • David R. HallH. Tracy Hall, Jr.David S. PixtonScott DahlgrenJoe FoxCameron SneddonMichael Briscoe
    • H01F27/02
    • F16L15/001E21B17/028E21B47/122F16L25/01H01R13/533
    • A robust data transmission element for transmitting information between downhole components, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The data transmission element components include a generally U-shaped annular housing, a generally U-shaped magnetically conductive, electrically insulating element such as ferrite, and an insulated conductor. Features on the magnetically conducting, electrically insulating element and the annular housing create a pocket when assembled. The data transmission element is filled with a polymer to retain the components within the annular housing by filling the pocket with the polymer. The polymer can bond with the annular housing and the insulated conductor but preferably not the magnetically conductive, electrically insulating element. A data transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe.
    • 一种用于在诸如热,污物,岩石,泥浆,流体,润滑剂等恶劣环境条件的情况下在井下部件之间传输信息的鲁棒数据传输元件,例如钻杆的部分。 数据传输元件部件包括大致U形的环形壳体,大致为U形的导电的电绝缘元件,例如铁氧体,以及绝缘导体。 导电,电绝缘元件和环形壳体上的特征在组装时形成一个口袋。 数据传输元件填充有聚合物,以通过用聚合物填充袋来将部件保持在环形壳体内。 聚合物可以与环形壳体和绝缘导体结合,但优选不是导电的,电绝缘的元件。 数据传输元件安装在靠近井下钻井部件(例如钻杆的一部分)的配合表面附近的凹部内。
    • 3. 发明授权
    • Element for use in an inductive coupler for downhole drilling components
    • 用于井下钻井部件的电感耦合器的元件
    • US07098767B2
    • 2006-08-29
    • US10708793
    • 2004-03-25
    • David R. HallH. Tracy Hall, Jr.David S. PixtonScott DahlgrenJoe FoxCameron Sneddon
    • David R. HallH. Tracy Hall, Jr.David S. PixtonScott DahlgrenJoe FoxCameron Sneddon
    • H01F27/24
    • E21B17/028F16L15/001F16L25/01H01F38/14H01R13/533
    • The present invention includes an element for use in an inductive coupler in a downhole component. The element includes a plurality of ductile, generally U-shaped leaves that are electrically conductive. The leaves are less than about 0.0625″ thick and are separated by an electrically insulating material. These leaves are aligned so as to form a generally circular trough. The invention also includes an inductive coupler for use in downhole components, the inductive coupler including an annular housing having a recess with a magnetically conductive, electrically insulating (MCEI) element disposed in the recess. The MCEI element includes a plurality of segments where each segment further includes a plurality of ductile, generally U-shaped electrically conductive leaves. Each leaf is less than about 0.0625″ thick and separated from the otherwise adjacent leaves by electrically insulating material. The segments and leaves are aligned so as to form a generally circular trough. The inductive coupler further includes an insulated conductor disposed within the generally circular trough. A polymer fills spaces between otherwise adjacent segments, the annular housing, insulated conductor, and further fills the circular trough.
    • 本发明包括用于井下部件中的电感耦合器的元件。 元件包括导电的多个延性大体为U形的叶片。 叶子厚度小于约0.0625“,并被电绝缘材料分开。 这些叶片对准以形成大致圆形槽。 本发明还包括用于井下部件的电感耦合器,所述感应耦合器包括环形壳体,该环形壳体具有设置在所述凹部中的具有导电,电绝缘(M​​CEI)元件的凹部。 MCEI元件包括多个段,其中每个段还包括多个延性大体为U形的导电叶。 每个叶片厚度小于约0.0625“,并通过电绝缘材料与其他相邻叶片分离。 分段和叶片对准以形成大致圆形槽。 电感耦合器还包括设置在大致圆形槽内的绝缘导体。 聚合物填充其他相邻节段之间的空间,环形壳体,绝缘导体,并进一步填充圆形槽。
    • 5. 发明授权
    • Inductive coupler for downhole components and method for making same
    • 井下部件的感应联轴器及其制造方法
    • US07040003B2
    • 2006-05-09
    • US10708845
    • 2004-03-27
    • David R. HallH. Tracy Hall, Jr.David S. PixtonScott DahlgrenMichael A. BriscoeCameron SneddonJoe Fox
    • David R. HallH. Tracy Hall, Jr.David S. PixtonScott DahlgrenMichael A. BriscoeCameron SneddonJoe Fox
    • H01F7/06
    • E21B17/028E21B47/122F16L15/001F16L25/01H01F38/14H01R13/533Y10T29/4902
    • The present invention includes a method of making an inductive coupler for downhole components. The method includes providing an annular housing, preferably made of steel, the housing having a recess. A conductor, preferably an insulated wire, is also provided along with a plurality of generally U-shaped magnetically conducting, electrically insulating (MCEI) segments. Preferably, the MCEI segments comprise ferrite. An assembly is formed by placing the plurality of MCEI segments within the recess in the annular housing. The segments are aligned to form a generally circular trough. A first portion of the conductor is placed within the circular trough. This assembly is consolidated with a meltable polymer which fills spaces between the segments, annular housing and the first portion of the conductor. The invention also includes an inductive coupler including an annular housing having a recess defined by a bottom portion and two opposing side wall portions. At least one side wall portion includes a lip extending toward but not reaching the other side wall portion. A plurality of generally U-shaped MCEI segments, preferably comprised of ferrite, are disposed in the recess and aligned so as to form a circular trough. The coupler further includes a conductor disposed within the circular trough and a polymer filling spaces between the segments, the annular housing and the conductor.
    • 本发明包括制造用于井下部件的电感耦合器的方法。 该方法包括提供优选由钢制成的环形壳体,该壳体具有凹部。 导体,优选绝缘导线,还与多个大致U形的导磁,电绝缘(M​​CEI)段一起提供。 优选地,MCEI段包括铁素体。 通过将多个MCEI段放置在环形壳体内的凹槽内而形成组件。 这些段被对准以形成大致圆形槽。 导体的第一部分放置在圆形槽内。 该组件与可熔融聚合物固结,其填充段,环形壳体和导体的第一部分之间的空间。 本发明还包括一种感应耦合器,其包括具有由底部和两个相对的侧壁部分限定的凹部的环形壳体。 至少一个侧壁部分包括朝向但不到达另一侧壁部分的唇缘。 多个大致为U形的MCEI段,优选地由铁氧体构成,设置在凹槽中并对准以形成圆形槽。 耦合器还包括设置在圆形槽内的导体和在段之间的聚合物填充空间,环形壳体和导体。
    • 6. 发明授权
    • Seal for coaxial cable in downhole tools
    • 同轴电缆在井下工具中的密封
    • US06945802B2
    • 2005-09-20
    • US10707232
    • 2003-11-28
    • David R. HallH. Tracy Hall, Jr.David S. PixtonScott DahlgrenJoe FoxCameron SneddonMichael Briscoe
    • David R. HallH. Tracy Hall, Jr.David S. PixtonScott DahlgrenJoe FoxCameron SneddonMichael Briscoe
    • E21B17/00E21B17/02H01R13/52H01R13/533H01R4/60
    • H01R13/533E21B17/003E21B17/028H01R13/521
    • A seal for a coaxial cable electrical connector more specifically an internal seal for a coaxial cable connector placed within a coaxial cable and its constituent components. A coaxial cable connector is in electrical communcation with an inductive transformer and a coaxial cable. The connector is in electrical communication with the outer housing of the inductive transformer. A generally coaxial center conductor, a portion of which could be the coil in the inductive transformer, passes through the connector, is electrically insulated from the connector, and is in electrical communication with the conductive core of the coaxial cable. The electrically insulating material also doubles as a seal to safegaurd against penetration of fluid, thus protecting against shorting out of the electrical connection. The seal is a multi-component seal, which is pre-compressed to a desired pressure rating. The coaxial cable and inductive transformer are disposed within downhole tools to transmit electrical signals between downhole tools within a drill string. The internal coaxial cable connector and its attendant seal can be used in a plurality of downhole tools, such as sections of pipe in a drill string, drill collars, heavy weight drill pipe, and jars.
    • 用于同轴电缆电连接器的密封件更具体地是用于布置在同轴电缆及其组成部件内的同轴电缆连接器的内部密封件。 同轴电缆连接器与感应变压器和同轴电缆进行电连接。 连接器与感应变压器的外壳电连通。 大致同轴的中心导体(其一部分可以是感应变压器中的线圈)通过连接器,与连接器电绝缘,并与同轴电缆的导电芯电连通。 电绝缘材料还兼作为防止流体渗透的密封件,从而防止电气连接短路。 密封件是多部件密封件,其被预压缩到所需的压力等级。 同轴电缆和电感变压器设置在井下工具内,以在钻柱内的井下工具之间传输电信号。 内部同轴电缆连接器及其附属密封件可用于多个井下工具,例如钻柱中的管道部分,钻铤,重型钻杆和罐。
    • 10. 发明授权
    • Downhole seismic-sonic receiver
    • 井下地震声波接收机
    • US07252174B2
    • 2007-08-07
    • US11162505
    • 2005-09-13
    • Dale CoxDavid R. HallH. Tracy Hall, Jr.Scott Dahlgren
    • Dale CoxDavid R. HallH. Tracy Hall, Jr.Scott Dahlgren
    • G01V1/00
    • G01V1/52
    • A downhole tool for gathering formation data from inside a borehole includes a substantially tubular housing adapted for axial connection to a drill string and multiple sensors coupled to the tubular housing. The sensors include a first pair of sensors aligned along a first axis and adapted to measure a spatial derivative along the first axis, a second pair of sensors aligned along a second axis and adapted to measure a spatial derivative along the second axis, and a third pair of sensors aligned along a third axis and adapted to measure a spatial derivative along the third axis. In selected embodiments, the spatial derivatives are used to differentiate seismic or sonic compression and shear waves measured in a downhole environment.
    • 用于从井眼内部收集地层数据的井下工具包括适于轴向连接到钻柱和基本上管状的壳体,多个传感器联接到管状壳体。 所述传感器包括沿着第一轴对齐并且适于测量沿着所述第一轴的空间导数的第一对传感器,沿着第二轴对准的并适于测量沿着所述第二轴的空间导数的第二对传感器, 一对传感器沿着第三轴对齐并适于测量沿着第三轴的空间导数。 在选择的实施例中,空间导数用于区分在井下环境中测量的地震或声音压缩和剪切波。