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    METHOD FOR COMPENSATING DRILL PIPE AND NEAR-BOREHOLE EFFECT ON AND ELECTRONIC NOISE IN TRANSIENT RESISTIVITY MEASUREMENTS
    2.
    发明申请
    METHOD FOR COMPENSATING DRILL PIPE AND NEAR-BOREHOLE EFFECT ON AND ELECTRONIC NOISE IN TRANSIENT RESISTIVITY MEASUREMENTS 审中-公开
    用于补偿钻孔管和近端电阻测量中的近孔效应和电子噪声的方法

    公开(公告)号：WO2009120773A3

    公开(公告)日：2010-01-28

    申请号：PCT/US2009038236

    申请日：2009-03-25

    Applicant: BAKER HUGHES INC ,  WANG TSILI ,  CHEMALI ROLAND E

    Inventor： WANG TSILI ,  CHEMALI ROLAND E

    IPC: G01V3/20 ,  E21B47/12 ,  G01V3/02 ,  G01V3/34

    CPC classification number: G01V3/28

    Abstract: Transient measurements made at two spaced apart receivers responsive to separate activation of two transmitters symmetrically disposed about the two receivers. The transmitters and receivers are on an instrument having a conductive body induces currents in the earth formation. The effect of the conductive body is removed by using deconvolving the signal at one receiver using the measured signal at the other receiver. The symmetric transmitter configuration also enables compensation for receiver differences.

    Abstract translation: 在两个间隔开的接收器进行的瞬态测量响应于两个对称地布置在两个接收器周围的两个发射器的分离激活。 发射器和接收器在具有导电体的仪器上引起地层中的电流。 通过使用在另一个接收器处的测量信号在一个接收机处去除信号来消除导电体的影响。 对称发射机配置还可以补偿接收机的差异。

    APPARATUS AND METHODS FOR SELF-POWERED COMMUNICATION AND SENSOR NETWORK
    6.
    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。

    APPARATUS AND SYSTEM FOR GEOSTEERING AND FORMATION EVALUATION UTILIZING IMPROVED ANTENNAS
    7.
    发明申请
    APPARATUS AND SYSTEM FOR GEOSTEERING AND FORMATION EVALUATION UTILIZING IMPROVED ANTENNAS 审中-公开
    用于改善天线的地球物理和地层评估的装置和系统

    公开(公告)号：WO2009152014A3

    公开(公告)日：2010-03-11

    申请号：PCT/US2009046141

    申请日：2009-06-03

    Applicant: BAKER HUGHES INC ,  FANG SHENG ,  WANG TSILI ,  SIGNORELLI JACK ,  CHEMALI ROLAND E

    Inventor： FANG SHENG ,  WANG TSILI ,  SIGNORELLI JACK ,  CHEMALI ROLAND E

    IPC: G01V3/28 ,  E21B47/00 ,  E21B47/12 ,  G01V3/26

    CPC classification number: E21B47/01 ,  G01V3/30

    Abstract: An apparatus for measuring one or more earth formation properties during applications including formation evaluation and geosteering applications is provided. The apparatus includes: an elongated body; at least one recessed portion on a periphery of the elongated body; an electrically conductive coil forming a closed loop, at least a portion of the coil extending through the at least one recessed portion; and a u-shaped magnetically permeable and non- conductive material disposed between the coil and the at least one recessed portion, the u-shaped material partially surrounding the coil in the at least one recessed portion. A system for measuring one or more properties of an earth formation is also provided.

    Abstract translation: 提供了一种用于在包括地层评估和地质导向应用的应用中测量一个或多个地层形成特性的装置。 该装置包括：细长体; 所述细长体的周边上的至少一个凹部; 形成闭环的导电线圈，所述线圈的至少一部分延伸穿过所述至少一个凹部; 以及设置在所述线圈和所述至少一个凹部之间的u形导磁和非导电材料，所述u形材料部分地围绕所述至少一个凹部中的所述线圈。 还提供了一种用于测量地层的一个或多个性质的系统。

    ELECTROMAGNETIC AND MAGNETOSTATIC SHIELD TO PERFORM MEASUREMENTS AHEAD OF THE DRILL BIT
    8.
    发明申请
    ELECTROMAGNETIC AND MAGNETOSTATIC SHIELD TO PERFORM MEASUREMENTS AHEAD OF THE DRILL BIT 审中-公开
    电磁和静磁屏蔽以在钻头位置进行测量

    公开(公告)号：WO2009117507A2

    公开(公告)日：2009-09-24

    申请号：PCT/US2009037549

    申请日：2009-03-18

    Applicant: BAKER HUGHES INC ,  ITSKOVICH GREGORY B ,  CHEMALI ROLAND E ,  WANG TSILI

    Inventor： ITSKOVICH GREGORY B ,  CHEMALI ROLAND E ,  WANG TSILI

    IPC: G01V3/08 ,  G01V3/10 ,  G01V3/26 ,  G01V3/38

    CPC classification number: G01V3/28

    Abstract: A transmitter on a bottomhole assembly (BHA) is used for generating a transient electromagnetic signal in an earth formation. A pair of receivers on the BHA receive signals that are indicative of formation resistivity and distances to bed boundaries. A time dependent calibration factor or a time-independent calibration factor may be used to combine the two received signals and estimate the distance to bed boundaries that are unaffected by the drill conductive body. Further improvement can be obtained by using copper shielding.

    Abstract translation: 底部钻具组合（BHA）上的发射器用于在地层中产生瞬态电磁信号。 BHA上的一对接收器接收指示地层电阻率和距地层边界距离的信号。 可以使用时间相关的校准因子或时间独立的校准因子来组合两个接收到的信号并且估计不受钻头导电体影响的与地层边界的距离。 通过使用铜屏蔽可以获得进一步的改进。

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