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    APPARATUS AND METHODS FOR SELF-POWERED COMMUNICATION AND SENSOR NETWORK
    12.
    发明申请
    APPARATUS AND METHODS FOR SELF-POWERED COMMUNICATION AND SENSOR NETWORK 审中-公开
    自动通信和传感器网络的设备和方法

    公开(公告)号：WO2005124397B1

    公开(公告)日：2006-11-02

    申请号：PCT/US2005020937

    申请日：2005-06-14

    Applicant: BAKER HUGHES INC

    Inventor： CHEMALI ROLAND E ,  KRUEGER VOLKER ,  ARONSTAM PETER S ,  WATKINS LARRY A ,  FINCHER ROGER W

    IPC: G01V11/00 ,  E21B17/02 ,  E21B41/00 ,  E21B47/12 ,  E21B47/14 ,  E21B47/16

    CPC classification number: E21B47/16 ,  E21B17/028 ,  E21B41/0085 ,  E21B47/122 ,  E21B47/123 ,  E21B47/14 ,  G01V11/002

    Abstract: A system for communicating between a first location and a second location comprises a jointed tubular string (4) having a first section (21) and a second section (22) connected at a connection joint (4), with the tubular string having a fluid (11) in an internal passage thereof. A first acoustic transducer (23) is mounted in the internal passage of the first section (21) proximate the connection joint (4), and a second acoustic transducer (25) is mounted in the internal passage of the second section (22) proximate the connection joint (4). A signal transmitted from the first location to the second location is transmitted across the connection joint as an acoustic signal in the fluid (11) from the first acoustic transducer (23) to the second acoustic transducer (25).

    Abstract translation: 用于在第一位置和第二位置之间连通的系统包括具有连接在连接接头（4）处的第一部分（21）和第二部分（22）的接合管状串（4），其中管状串具有流体 （11）在其内部通道中。 第一声​​学换能器（23）安装在靠近连接接头（4）的第一部分（21）的内部通道中，并且第二声学换能器（25）安装在第二部分（22）的内部通道中 连接接头（4）。 从第一位置传输到第二位置的信号通过连接接头作为来自第一声换能器（23）到第二声换能器（25）的流体（11）中的声信号传输。

    DRILLING SYSTEM AND METHOD FOR CONTROLLING EQUIVALENT CIRCULATING DENSITY DURING DRILLING OF WELLBORES
    13.
    发明申请
    DRILLING SYSTEM AND METHOD FOR CONTROLLING EQUIVALENT CIRCULATING DENSITY DURING DRILLING OF WELLBORES 审中-公开
    井筒钻井过程中控制等效循环密度的钻井系统及方法

    公开(公告)号：WO03006778A1

    公开(公告)日：2003-01-23

    申请号：PCT/US0221520

    申请日：2002-07-09

    Applicant: BAKER HUGHES INC

    Inventor： FONTANA PETER ,  ARONSTAM PETER S ,  WATKINS LARRY A

    IPC: E21B7/12 ,  E21B21/00 ,  E21B21/08 ,  E21B33/076 ,  E21B43/12 ,  E21B47/00 ,  E21B

    CPC classification number: E21B21/08 ,  E21B7/12 ,  E21B21/001 ,  E21B33/076 ,  E21B43/12 ,  E21B47/0001

    Abstract: A drilling system for drilling subsea wellbores includes a tubing-conveyed drill bit (130) that passes through a subsea wellhead. Surface supplied drillng fluid flows through the tubing (121), discharges at the drill bit, returns to the wellhead through a wellbore annulus (122), and flows to the surface via a riser (160) extending from the wellhead. A flow restriction device (164) positioned in the riser restricts the flow of the returning fluid while an active fluid device controllably discharges fluid from a location below to just above the flow restriction device in the riser, thereby controlling bottomhole pressure and equivalent circulating density ("ECD"). Alternatively, the fluid is discharged into a separate return line (206) thereby providing dual gradient drilling while controlling bottomhole pressure and ECD. A controller (180) controls the energy and thus the speed of the pump in response to downhole measurement(s) to maintain the ECD at a predetermined value or within a predetermined range.

    Abstract translation: 用于钻井海底井筒的钻井系统包括通过海底井口的管道输送的钻头（130）。 表面供应的钻井液流过管道（121），在钻头处排出，通过井筒环（122）返回到井口，并通过从井口延伸的提升管（160）流到表面。 定位在提升管中的流量限制装置（164）限制返回流体的流动，而主动流体装置可控制地将流体从下方的位置排放到提升管内的流量限制装置正上方，从而控制井底压力和等效循环密度（ “ECD”）。 或者，流体被排放到单独的返回管线（206）中，从而提供双梯度钻孔，同时控制井底压力和ECD。 控制器（180）响应于井下测量而控制能量并因此控制泵的速度，以将ECD保持在预定值或在预定范围内。

    SYSTEM AND METHODS OF COMMUNICATING OVER NOISY COMMUNICATION CHANNELS
    15.
    发明专利
    SYSTEM AND METHODS OF COMMUNICATING OVER NOISY COMMUNICATION CHANNELS 未知

    公开(公告)号：CA2603536C

    公开(公告)日：2012-12-04

    申请号：CA2603536

    申请日：2006-04-04

    Applicant: BAKER HUGHES INC

    Inventor： ARONSTAM PETER S ,  FINCHER ROGER W ,  WATKINS LARRY A

    IPC: E21B47/12 ,  H04L25/02 ,  H04B1/10 ,  H04B1/12 ,  H04H60/31 ,  H04L27/26

    Abstract: A system and methods of transmitting information between a first location and a second location comprise transmitting a data signal and a known signal from one of the first location and the second location over a signal channel having a first noise component. A second noise component is measured in a noise channel adjacent the signal channel. The data signal, the known signal, and the first noise component are received at the other location. The first noise component is estimated based on the second noise component. The estimated noise component is combined with the received data signal and the received known signal to generate noise-cancelled received data and received known signals. The noise-cancelled received known signal is processed to obtain an estimate of the channel transfer function. The estimated channel transfer function is combined with the noise-cancelled received data signal to reconstruct the transmitted data signal.

    EXPANDABLE COMPOSITE TUBULARS
    17.
    发明专利
    EXPANDABLE COMPOSITE TUBULARS 未知

    公开(公告)号：CA2508453C

    公开(公告)日：2010-11-02

    申请号：CA2508453

    申请日：2003-12-03

    Applicant: BAKER HUGHES INC

    Inventor： RICHARD BENNETT M ,  ARONSTAM PETER ,  WATKINS LARRY A

    IPC: E21B43/10 ,  E21B17/00

    Abstract: Composite tubulars that have not been polymerized and are thus flexible enough to be coiled are delivered into a wellbore and expanded. The expansion occurs from an external catalist such as heat or releases the internal catalyst and allows the expanded tubular to become rigid. Optionally, healing agents can be imbedded in the tubular wall to be released to seal subsequently forming cracks.

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