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    Acoustic isolater for a downhole tool
    51.
    发明授权
    Acoustic isolater for a downhole tool 有权
    用于井下工具的隔声器

    公开(公告)号：US09448320B2

    公开(公告)日：2016-09-20

    申请号：US14092170

    申请日：2013-11-27

    Applicant: GE Oil & Gas Logging Services, Inc.

    Inventor： James David Ratcliffe ,  Timothy Gill

    IPC: G01V1/44 ,  G01V1/52

    CPC classification number: G01V1/44 ,  G01V1/523

    Abstract: A downhole tool for acoustically imaging a subterranean formation having a transmitter and receiver and which includes an acoustic isolator between the transmitter and receiver. The acoustic isolator includes attenuation elements with rounded ends and that are connected in series by compression fittings. The compression fittings include sleeves that threadingly engage lock nuts and compressively engage the rounded ends. The contact interfaces between the compression fittings extend along a curved path thereby limiting acoustic transmission along the series of attenuation elements.

    Abstract translation: 一种用于对具有发射器和接收器的地下地层进行声学成像并包括发射器和接收器之间的声隔离器的井下工具。 声隔离器包括具有圆形端部的衰减元件，并且通过压缩配件串联连接。 压缩配件包括螺纹接合锁定螺母并压缩地接合圆形端部的套筒。 压缩配件之间的接触界面沿弯曲路径延伸，从而限制沿着一系列衰减元件的声传播。

    TRANSDUCER ASSEMBLY
    52.
    发明申请
    TRANSDUCER ASSEMBLY 审中-公开
    传感器总成

    公开(公告)号：US20150198733A1

    公开(公告)日：2015-07-16

    申请号：US14668958

    申请日：2015-03-25

    Applicant: TecWel AS

    Inventor： Terje Lenart LIE

    IPC: G01V1/52 ,  E21B47/10

    CPC classification number: G01V1/52 ,  E21B47/101 ,  G01V1/523

    Abstract: A petroleum production well ultrasound logging tool is provided comprising a cylindrical main body having a lower end holding a sideways monitoring transducer assembly comprising a ring-shaped ultrasound transducer array of transducer elements. The transducer array has a downward tapering frustoconical shape. The ultrasound transducer array's radially outward face is covered by a funnel shaped acoustic window with a radially inward facing surface corresponding to the outward face. The ultrasound transducer array and the acoustic window is retained on the cylindrical main body's lower end by an end cap.

    Abstract translation: 提供一种石油生产井超声测井工具，其包括圆柱形主体，其具有保持侧向监测换能器组件的下端，该组件包括换能器元件的环形超声换能器阵列。 换能器阵列具有向下锥形的截头圆锥形状。 超声波换能器阵列的径向外表面被漏斗形声窗覆盖，其具有对应于外表面的径向向内的表面。 超声波换能器阵列和声窗通过端盖保持在圆筒形主体的下端。

    Acoustic Isolater for a Downhole Tool
    53.
    发明申请
    Acoustic Isolater for a Downhole Tool 有权
    用于井下工具的声学隔离器

    公开(公告)号：US20150146501A1

    公开(公告)日：2015-05-28

    申请号：US14092170

    申请日：2013-11-27

    Applicant: GE Oil & Gas Logging Services, Inc.

    Inventor： James David RATCLIFFE ,  Timothy Gill

    IPC: G01V1/44

    CPC classification number: G01V1/44 ,  G01V1/523

    Abstract: A downhole tool for acoustically imaging a subterranean formation having a transmitter and receiver and which includes an acoustic isolator between the transmitter and receiver. The acoustic isolator includes attenuation elements with rounded ends and that are connected in series by compression fittings. The compression fittings include sleeves that threadingly engage lock nuts and compressively engage the rounded ends. The contact interfaces between the compression fittings extend along a curved path thereby limiting acoustic transmission along the series of attenuation elements.

    Abstract translation: 一种用于对具有发射器和接收器的地下地层进行声学成像并包括发射器和接收器之间的声隔离器的井下工具。 声隔离器包括具有圆形端部的衰减元件，并且通过压缩配件串联连接。 压缩配件包括螺纹接合锁紧螺母并压缩地接合圆形端部的套筒。 压缩配件之间的接触界面沿弯曲路径延伸，从而限制了沿着一系列衰减元件的声传播。

    Broadband flex joint isolator for acoustic tools
    54.
    发明授权
    Broadband flex joint isolator for acoustic tools 有权
    用于声学工具的宽带柔性接头隔离器

    公开(公告)号：US09038766B2

    公开(公告)日：2015-05-26

    申请号：US13984726

    申请日：2011-02-11

    Applicant: Abbas Arian ,  Randall B. Jones

    Inventor： Abbas Arian ,  Randall B. Jones

    IPC: G01V1/52

    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 (210) having a bore therethough 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 (210) end portions. The fiber portion (230) includes a continuous flexible portion that allows relative deflection of the first (205) and second (210) 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）和具有孔的第二端部（210），以使得能够通过电线。 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（210）端部。 纤维部分（230）包括允许第一（205）和第二（210）端部相对偏转的连续柔性部分。

    Downhole Seismic Sensor with Filler Fluid and Method of Using Same
    55.
    发明申请
    Downhole Seismic Sensor with Filler Fluid and Method of Using Same 有权
    具有填充流体的井下地震传感器及其使用方法

    公开(公告)号：US20150002159A1

    公开(公告)日：2015-01-01

    申请号：US13931996

    申请日：2013-06-30

    Applicant: Schlumberger Technology Corporation

    Inventor： Toru Ikegami

    IPC: E21B47/01 ,  G01V3/26

    CPC classification number: E21B47/01 ,  G01V1/182 ,  G01V1/184 ,  G01V1/40 ,  G01V1/523 ,  G01V3/26 ,  G01V2200/16 ,  G01V2210/1429

    Abstract: A seismic sesor for a downhole tool positionable in a wellbore penetrating a subterranean formation. The seismic sensor includes a sensor housing, a bobbin supported in the sensor housing along an axis thereof, at least one coil wound about the bobbin (the coil movably supportable within the sensor housing by at least one spring), at least one magnet positionable about the bobbin to generate a magnetic field with the at least one coil whereby seismic vibrations are detectable, and a filler fluid disposed in the sensor housing to buoy the at least one coil whereby gravitational effects may be neutralized.

    Abstract translation: 用于井下工具的地震筛，其可定位在穿透地下地层的井眼中。 所述地震传感器包括传感器外壳，沿其轴线支撑在所述传感器壳体中的线轴，围绕所述线轴缠绕的至少一个线圈（所述线圈可通过至少一个弹簧可移动地支撑在所述传感器壳体内），至少一个磁体可定位在约 所述线轴与所述至少一个线圈产生磁场，从而可以检测地震振动;以及填充流体，布置在所述传感器外壳中以浮起所述至少一个线圈，从而可以中和重力作用。

    TRANSDUCER ASSEMBLY
    56.
    发明申请
    TRANSDUCER ASSEMBLY 审中-公开
    传感器总成

    公开(公告)号：US20120179377A1

    公开(公告)日：2012-07-12

    申请号：US13380757

    申请日：2009-06-24

    Applicant: Terje Lenart Lie

    Inventor： Terje Lenart Lie

    IPC: G06F19/00 ,  E21B47/00

    CPC classification number: G01V1/52 ,  E21B47/101 ,  G01V1/523

    Abstract: There is provided a transducer assembly for monitoring within a borehole. The transducer assembly is operable to at least one of: (a) generate acoustic radiation when excited with one or more signals; and (b) generate one or more signals when acoustic radiation is received thereat; wherein the transducer assembly includes one or more piezo-electric elements for converting between acoustic radiation and corresponding signals. The assembly includes an interfacing member for acoustically interfacing between the one or more piezo-electric elements and an environment of the borehole for protecting the one or more piezo-electric elements from the environment. The assembly is adapted to at least one of generate acoustic radiation and sense acoustic radiation in a sideways or down-borehole direction.

    Abstract translation: 提供了一种用于在钻孔内进行监测的换能器组件。 换能器组件可操作为以下至少之一：（a）当用一个或多个信号激发时产生声辐射; 和（b）在其上接收声辐射时产生一个或多个信号; 其中所述换能器组件包括用于在声辐射和相应信号之间转换的一个或多个压电元件。 组件包括用于在一个或多个压电元件之间声学接口的接口构件和用于保护一个或多个压电元件免受环境的钻孔的环境。 该组件适于产生声辐射和在侧向或下向钻孔方向感测声辐射中的至少一种。

    Acoustic isolator for downhole applications
    60.
    发明申请
    Acoustic isolator for downhole applications 审中-公开

    公开(公告)号：US20060260864A1

    公开(公告)日：2006-11-23

    申请号：US11410637

    申请日：2006-04-25

    Applicant: Sergey Egerev ,  Vladimir Belov ,  Vladimir Dubinsky ,  Alexei Bolshakov ,  Victor Tiutekin ,  Victor Yushin

    Inventor： Sergey Egerev ,  Vladimir Belov ,  Vladimir Dubinsky ,  Alexei Bolshakov ,  Victor Tiutekin ,  Victor Yushin

    IPC: G01V1/40

    CPC classification number: G01V1/523

    Abstract: A plurality of heavy mass irregularities attached to an inner wall of the drill collar attenuate waves traveling through the collar. The plurality of heavy mass irregularities are spaced and sized for the maximum attenuation of acoustic pulses in a predetermined frequency range. The mass irregularities may be rings secured to the inner surface of the collar by neck pieces, extending outwardly from the outer circumference of the ring. The mass irregularities may be made of steel or tungsten and are between six and ten in number. The spacing of the irregularities may lie between twelve and fourteen centimeters. A center pipe may be included to isolate the irregularities from the fluid flow associated with the drilling operation. The pipe may be of a soft material such as rubber to reduce transfer of acoustic noise along the drill string. The irregularities may be in an oil based fluid with the pipe fitting closely in the center of the rings. In another embodiment of the invention, each of the mass irregularities is attached to the drill collar over substantially the entire length of the mass irregularity, enabling the attenuation of high frequencies. In yet another embodiment of the invention, the attenuator comprises a substantially cylindrical body with a plurality of recesses on the inside and/or outside of the cylindrica body, with the length of the recesses selected to provide attenuation within a specified band. In another embodiment of the invention, the attenuator comprises a plurality of sections each having an inner diameter and an outer diameter, each section acting like a waveguide with an associated passband and reject-band.

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