Fault detection for active damping of a wellbore logging tool

    公开(公告)号:US09739143B2

    公开(公告)日:2017-08-22

    申请号:US14914203

    申请日:2014-08-07

    CPC classification number: E21B47/14 G01V1/48 G01V1/523 G01V2200/14 G01V2200/16

    Abstract: Systems and methods for detecting faults in the active damping of a logging tool are disclosed herein. A wellbore logging tool system comprises a processor, a memory, a wellbore logging tool comprising an acoustic transmitter, and a logging tool control module. The logging tool control module is operable to receive sensor signals from one or more sensors coupled to the wellbore logging tool after a damping control signal has been transmitted to the acoustic transmitter. The logging tool control module is also operable to determine one or more expected sensor signals, determine error values using the expected sensor signals and the sensor signals received from the one or more sensors, and compare the error values with one or more thresholds.

    Acoustic receiver assembly for downhole tools
    2.
    发明授权
    Acoustic receiver assembly for downhole tools 有权
    用于井下工具的声学接收器组件

    公开(公告)号:US09322947B2

    公开(公告)日:2016-04-26

    申请号:US14400767

    申请日:2014-03-27

    CPC classification number: G01V1/44 E21B47/16 G01V1/523 G10K11/16

    Abstract: The disclosure addresses acoustic receivers including an acoustic isolator structure, and an acoustic logging tool which incorporates the acoustic receiver. The acoustic receiver isolation structure is configured to minimize acoustic transmissions which could otherwise adversely affect acoustical measurements being made by an acoustic receiver. The described acoustic receiver includes a plurality of longitudinally arranged mass members coupled to a central supporting structure, in a configuration to reduce acoustic transmissions in at least selected frequency ranges.

    Abstract translation: 该公开内容涉及包括声学隔离器结构的声学接收器以及结合声学接收器的声学测井工具。 声学接收器隔离结构被配置为最小化声学传输,否则这将不利地影响由声学接收器进行的声学测量。 所描述的声学接收器包括多个纵向布置的质量构件,其耦合到中央支撑结构,其构造为在至少选定的频率范围内减少声学传播。

    VARIABLE STIFFNESS DOWNHOLE TOOL HOUSING
    3.
    发明申请
    VARIABLE STIFFNESS DOWNHOLE TOOL HOUSING 有权
    可变刚度卧式工具壳

    公开(公告)号:US20150101800A1

    公开(公告)日:2015-04-16

    申请号:US14401099

    申请日:2012-05-17

    CPC classification number: E21B47/01 E21B17/00 E21B47/101 E21B49/08 G01V1/523

    Abstract: Various systems and methods for implementing and using a variable stiffness downhole tool housing include cylindrical segments positioned along a common axis, with a pair of segments each coupled to a bulkhead and positioned at either axial end of the tool housing. The housing also includes a flexible cylindrical sleeve, positioned along the common axis between two of the plurality of cylindrical segments, that includes a first and second region with an outer diameter no larger than a common segment inner diameter and a third region located between the first and second regions and with an outer diameter no larger than a common segment outer diameter (the first and second regions each at least partially inserted into an end of one segment). A stiffness controller controls the stiffness of the tool housing by controlling at least part of an axial force exerted between the two segments.

    Abstract translation: 用于实现和使用可变刚度井下工具壳体的各种系统和方法包括沿公共轴线定位的圆柱形段,其中一对段各自联接到隔板并且定位在工具壳体的任一轴向端。 壳体还包括柔性圆柱形套筒,沿着公共轴线定位在多个圆柱形段之间的两个之间,其包括具有不大于公共节段内径的外径的第一和第二区域,以及位于第一 和第二区域,并且具有不大于公共段外径(每个至少部分地插入一个段的末端的第一和第二区域)的外径。 刚度控制器通过控制施加在两个段之间的轴向力的至少一部分来控制工具壳体的刚度。

    PERFORMANCE OF PERMANENTLY INSTALLED TUBING CONVEYED SEISMIC ARRAYS USING PASSIVE ACOUSTIC ABSORBERS
    4.
    发明申请
    PERFORMANCE OF PERMANENTLY INSTALLED TUBING CONVEYED SEISMIC ARRAYS USING PASSIVE ACOUSTIC ABSORBERS 有权
    使用无源吸音器的永久安装的输送地震区域的性能

    公开(公告)号:US20140182837A1

    公开(公告)日:2014-07-03

    申请号:US14196700

    申请日:2014-03-04

    Abstract: Methods and apparatus for reducing the impact of guided (or “tube”) waves in permanently installed seismic systems are provided. By utilizing passive acoustic absorbers, the impact of tube waves may be reduced, leading to improved performance of permanently installed seismic systems that are installed onto production tubing when the well is completed.

    Abstract translation: 提供了减少永久安装的地震系统中导向(或“管”)波的影响的方法和装置。 通过使用被动吸声器,可以减少管波的影响,导致在井完成时安装在生产管道上的永久安装的地震系统的性能提高。

    BROADBAND FLEX JOINT ISOLATOR FOR ACOUSTIC TOOLS
    5.
    发明申请
    BROADBAND FLEX JOINT ISOLATOR FOR ACOUSTIC TOOLS 有权
    高音工具的宽带柔性接头隔离器

    公开(公告)号:US20130313037A1

    公开(公告)日:2013-11-28

    申请号:US13984726

    申请日:2011-02-11

    CPC classification number: G01V1/523

    Abstract: An acoustic attenuator assembly for an acoustic tool for performing acoustic investigation of a subterranean formation is disclosed. The acoustic attenuator assembly includes a first end portion (205) and a second end portion (215) having a bore therethrough to enable passage of an electrical line. The acoustic attenuator assembly further includes a fiber portion (230) disposed between the first and second end portion so that the fiber portion attenuates at least a portion of acoustic energy when the acoustic energy is received by one or both of the first (205) and second (215) end portions.

    Abstract translation: 公开了一种用于执行地下地层声学研究的声学工具的声衰减器组件。 声衰减器组件包括第一端部(205)和第二端部(215),第二端部(215)具有穿过其中的孔,以允许电线通过。 声衰减器组件还包括设置在第一和第二端部之间的光纤部分(230),使得当声能被第一(205)和(205)中的一个或两个接收时,光纤部分衰减至少一部分声能 第二(215)端部。

    ACOUSTIC ISOLATOR
    6.
    发明申请
    ACOUSTIC ISOLATOR 有权
    声音隔离器

    公开(公告)号:US20100157741A1

    公开(公告)日:2010-06-24

    申请号:US12645353

    申请日:2009-12-22

    CPC classification number: G01V1/523

    Abstract: An acoustic isolator for use with tubular assemblies such as drillpipe or production tubing comprising an acoustic wave transmitter, the acoustic isolator comprising, in series connection, an odd integer λ/4 multiple tuning bar of first acoustic impedance adjacent the acoustic wave transmitter, an odd integer λ/4 multiple reflector tube of second acoustic impedance, and a snubber of third acoustic impedance, wherein there is an acoustic impedance mismatch between the odd integer λ/4 multiple tuning bar and the odd integer λ/4 multiple reflector tube and an acoustic impedance mismatch between the odd integer λ/4 multiple reflector tube and snubber, such that a ‘down’ wave propagated toward the isolator is reflected back substantially in phase with an ‘up’ wave propagated from the acoustic wave source away from the isolator. Furthermore, the acoustic isolator is similarly effective in reflecting ‘up’ propagating waves originating from below the isolator, hence further protecting the acoustic wave source from possible deleterious interference.

    Abstract translation: 一种用于管状组件(例如钻杆或包括声波发射器的生产管道)的声隔离器,该声隔离器串联连接包括与声波发射器相邻的第一声阻抗的奇整数λ/ 4多调谐杆,奇数 第二声阻抗的整数λ/ 4多重反射管和第三声阻抗缓冲器,其中在奇整数λ/ 4多调谐条与奇整数λ/ 4多反射管之间存在声阻抗失配 奇数整数λ/ 4多重反射管和缓冲器之间的阻抗失配,使得朝向隔离器传播的“向下”波基本上与从声波源远离隔离器传播的“向上”波相反地反射回来。 此外,声隔离器在反射从隔离器下方产生的“向上”传播波同样有效,因此进一步保护声波源免受可能的有害干扰。

    Acoustic isolator for well logging system
    7.
    发明授权
    Acoustic isolator for well logging system 有权
    用于测井系统的隔声器

    公开(公告)号:US07650963B2

    公开(公告)日:2010-01-26

    申请号:US10889536

    申请日:2004-07-12

    CPC classification number: G01V1/523 Y10S367/911

    Abstract: An acoustic isolator for attenuating through-tool acoustic signals comprises a plurality of u-shaped link members, where each link member has two sets of ears. A plurality of yoke members are adapted to fit between cooperating sets of ears. A plurality of pins connect the plurality of u-shaped link members to the plurality of yoke members for providing limited flexural compliance. The isolator may be made from metallic and/or composite materials.

    Abstract translation: 用于衰减通过工具的声信号的声学隔离器包括多个U形连杆构件,其中每个连杆构件具有两组耳朵。 多个轭构件适于配合在一组耳朵之间。 多个销将多个U形连杆构件连接到多个轭构件,以提供有限的弯曲顺应性。 隔离器可以由金属和/或复合材料制成。

    Acoustic Isolator
    8.
    发明申请
    Acoustic Isolator 审中-公开
    声隔离器

    公开(公告)号:US20090107757A1

    公开(公告)日:2009-04-30

    申请号:US12255964

    申请日:2008-10-22

    CPC classification number: G01V1/523

    Abstract: An acoustic isolator for use with downhole subterranean exploration and production operations, where the operations transmit acoustic signals into a subterranean formation. The acoustic isolator comprises a series of threaded fittings and is disposed on a downhole tool between a transmitter and a receiver. The acoustic isolator substantially attenuates the acoustic signal along the body and minimizes its effect on the receiver.

    Abstract translation: 一种用于井下地下勘探和生产操作的隔音器,其中操作将声信号传输到地下地层中。 声隔离器包括一系列螺纹配件,并且设置在发射器和接收器之间的井下工具上。 声隔离器基本上衰减沿着身体的声信号,并使其对接收器的影响最小化。

    ACOUSTIC ISOLATOR SECTION
    9.
    发明申请
    ACOUSTIC ISOLATOR SECTION 有权
    声学隔离器部分

    公开(公告)号:US20080149415A1

    公开(公告)日:2008-06-26

    申请号:US11944235

    申请日:2007-11-21

    Applicant: Philip Botting

    Inventor: Philip Botting

    CPC classification number: G01V1/523

    Abstract: An acoustic isolator section for an acoustic well logging tool, the isolator section comprising:an isolator comprising: (i) an isolator body;(ii) a mass;(iii) a resilient portion formed integrally with the isolator body;(iv) a movement limiter.

    Abstract translation: 一种用于声学测井工具的隔音器部分,隔离器部分包括:隔离器,包括:(i)隔离体; (ii)质量; (iii)与隔离体一体形成的弹性部分; (iv)移动限制器。

    Low frequency acoustic attenuator for use in downhole applications
    10.
    发明申请
    Low frequency acoustic attenuator for use in downhole applications 有权
    低频声衰减器用于井下应用

    公开(公告)号:US20060000665A1

    公开(公告)日:2006-01-05

    申请号:US10882915

    申请日:2004-06-30

    CPC classification number: E21B47/16 G01V1/523

    Abstract: An acoustic attenuator includes a housing having an inner side surface which defines an interior chamber and at least one dampening member both physically and acoustically coupled to the housing and projecting into the interior chamber. Acoustic energy propagating within the housing is deflected into the dampening members for acoustically dispersal within the interior chamber. In various aspects thereof, the dampening members may include one or a group of two or more generally cylindrical sleeves having one end both physically and acoustically coupled to the housing and a second end projecting into the interior chamber. Preferably, when a group of two or more cylindrical sleeves are employed, the sleeves are nested within one another. The dampening members may further include a second, oppositely disposed, group of two or more acoustic attenuators nested within one another and interdigitated with the first group of cylindrical sleeves.

    Abstract translation: 声衰减器包括壳体,该壳体具有限定内腔的内侧表面和至少一个阻尼构件,物理和声学耦合到壳体并突出到内腔中。 在壳体内传播的声能被偏转到阻尼构件中,用于在内腔内声扩散。 在其各个方面,阻尼构件可以包括一个或一组两个或更多个大致圆柱形的套筒,其中一个端部物理上和声学上耦合到壳体,第二端突出到内部腔室中。 优选地,当使用一组两个或更多个圆柱形套筒时,套筒彼此嵌套。 阻尼构件还可以包括彼此嵌套的两个或更多个声衰减器的第二相对设置的组,并与第一组圆柱形套筒相互指向。

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