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39 条记录 (耗时 0.034 秒)

    Hydrophone for use in a downhole tool
    1.
    发明授权
    Hydrophone for use in a downhole tool 有权
    用于井下工具的水听器

    公开(公告)号：US06438070B1

    公开(公告)日：2002-08-20

    申请号：US09411078

    申请日：1999-10-04

    申请人： James R. Birchak ,  Alvin B. Miller ,  John W. Harrell

    发明人： James R. Birchak ,  Alvin B. Miller ,  John W. Harrell

    IPC分类号： G01V140

    CPC分类号： G01V1/186 ,  B06B1/0611 ,  G01V1/52

    摘要： A pressure pulse sensor and associated methods provide enhanced functionality and convenience in detecting pressure pulses. In a described embodiment, a hydrophone includes a stack of disc-shaped lead titanate piezoelectric crystals enclosed within an epoxy membrane and a mounting portion which is aligned with a center of mass of the crystal stack.

    摘要翻译： 压力脉冲传感器和相关方法在检测压力脉冲方面提供了增强的功能和便利性。 在所描述的实施例中，水听器包括封装在环氧树脂膜内的圆盘形钛酸铅压电晶体和与晶体叠层的质心对准的安装部分。

    Axially extended downhole seismic source
    6.
    发明授权
    Axially extended downhole seismic source 有权
    轴向延伸井下震源

    公开(公告)号：US06478107B1

    公开(公告)日：2002-11-12

    申请号：US09565301

    申请日：2000-05-04

    申请人： James R. Birchak ,  Robert L. Malloy ,  Carl A. Robbins ,  Eugene J. Linyaev ,  David J. Young

    发明人： James R. Birchak ,  Robert L. Malloy ,  Carl A. Robbins ,  Eugene J. Linyaev ,  David J. Young

    IPC分类号： G01V102

    CPC分类号： G01V1/133

    摘要： An axially extended downhole seismic source is disclosed. In one embodiment, the seismic source includes multiple pressure storage chambers, each having an inlet valve and an outlet valve. The inlet valve is coupled between the pressure storage chamber and the interior of the drill string, and the outlet valve is similarly coupled between the pressure storage chamber and the annular space around the drill string. A compressible fluid may be provided in the pressure storage chambers, and pistons may be positioned to contact the compressible fluid. For each pressure storage chamber, an inlet piston contacts the compressible fluid and fluid inside the drill string, while an outlet piston contacts the compressible fluid and fluid in the annular space around the drill string. When the outlet valve is closed, the inlet valve can be opened to allow pressure inside the drill string to compress the compressible fluid inside the pressure storage chamber. Subsequently closing the inlet valve and opening the outlet valve causes fluid to be ejected into the annular space, thereby generating seismic waves. The use of multiple pressure storage chambers allows the pressure front from the seismic source to be extended axially to advantageously increase the fraction of seismic energy transmitted into the formation while preventing damage to the formation.

    摘要翻译： 公开了一种轴向延伸的井下地震源。 在一个实施例中，地震源包括多个压力存储室，每个压力存储室具有入口阀和出口阀。 入口阀联接在压力存储室和钻柱的内部之间，并且出口阀类似地连接在压力存储室与钻柱周围的环形空间之间。 可压缩流体可以设置在压力存储室中，并且活塞可以被定位成接触可压缩流体。 对于每个压力储存室，入口活塞接触可压缩流体和钻柱内部的流体，同时出口活塞接触可压缩流体和围绕钻柱的环形空间中的流体。 当出口阀关闭时，可以打开入口阀，以允许钻柱内部的压力压缩压力储存室内部的可压缩流体。 随后关闭入口阀并打开出口阀，导致流体被喷射到环形空间中，从而产生地震波。 使用多个压力储存室允许来自震源的压力前端轴向延伸，以有利地增加传输到地层中的地震能量的分数，同时防止对地层的损坏。

    System for acoustic caliper measurements
    7.
    发明授权
    System for acoustic caliper measurements 失效
    声卡测量系统

    公开(公告)号：US4665511A

    公开(公告)日：1987-05-12

    申请号：US595327

    申请日：1984-03-30

    申请人： Paul F. Rodney ,  James R. Birchak

    发明人： Paul F. Rodney ,  James R. Birchak

    IPC分类号： E21B47/08 ,  G01B17/00 ,  G01B17/08 ,  G01V1/40 ,  G01V1/46 ,  G01V1/00

    CPC分类号： G01V1/46 ,  E21B47/082 ,  G01B17/00

    摘要： The present invention relates to an apparatus and method for calipering a borehole using acoustic measurements within the borehole. These acoustic measurements are useful for measuring the reflectivity of the side walls of a borehole and for calipering a borehole in a wireline or measurement while drilling configuration. The apparatus comprises at least one acoustic transceiver disposed on a calipering tool, together with a second acoustic receiver disposed longitudinally a selected distance from the first receiver. Further, a second acoustic transceiver is disposed on the caliper tool azimuthally from the first transceiver. Measurement of the travel times of acoustic pulses reflected from the borehole walls by the transceivers and receivers of this device, together with other known data, permits an accurate caliper of the borehole to be produced.

    摘要翻译： 本发明涉及使用钻孔内的声学测量来测量钻孔的装置和方法。 这些声学测量对于测量钻孔的侧壁的反射率和在钻孔配置中用于测量电缆中的钻孔或测量是有用的。 该装置包括设置在卡钳工具上的至少一个声收发器，以及沿第一接收器纵向选择的距离设置的第二声接收器。 此外，第二声收发器从第一收发器以方位角度设置在卡钳工具上。 通过该装置的收发器和接收器以及其他已知数据测量从钻孔壁反射的声波脉冲的行进时间允许产生钻孔的精确卡尺。

    Acoustic device for measuring fluid properties
    8.
    发明授权
    Acoustic device for measuring fluid properties 失效
    用于测量流体特性的声学装置

    公开(公告)号：US4571693A

    公开(公告)日：1986-02-18

    申请号：US473811

    申请日：1983-03-09

    申请人： James R. Birchak ,  Edward A. Lygas

    发明人： James R. Birchak ,  Edward A. Lygas

    IPC分类号： E21B47/10 ,  G01H5/00 ,  G01H15/00 ,  G01N29/024 ,  G01T1/16

    CPC分类号： E21B47/101 ,  G01H15/00 ,  G01H5/00 ,  G01N29/024 ,  G01N2291/02818

    摘要： An apparatus and method for measuring fluid characteristics, particularly useful in performing measurements in remote and severe environments is disclosed. The probe employs an ultrasonic transmitter and receiver, preferably a unitary ultrasonic transducer to both transmit and receive the ultrasonic signal. Further, the probe includes an internal reference reflecting surface hermetically sealed from contact with the fluid and one or more solid/fluid reflecting surfaces as are required. Preferably, two solid/fluid reflecting surfaces are located on opposite sides of a fluid receiving gap. The apparatus and method are useful in measuring fluid characteristics both at remote surface and in downhole drilling locations.

    摘要翻译： 公开了一种用于测量流体特性的装置和方法，特别用于在远程和恶劣环境中进行测量。 探头采用超声波发射器和接收器，优选地是整体的超声换能器来发射和接收超声波信号。 此外，探针包括内部参考反射表面，所述内部参考反射表面被密封以防止与流体接触并且需要一个或多个固体/流体反射表面。 优选地，两个固体/流体反射表面位于流体接收间隙的相对侧上。 该装置和方法可用于在远程表面和井下钻井位置测量流体特性。

    Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom
    9.
    发明授权
    Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom 有权
    用振动波处理井眼以从其中除去颗粒的方法和装置

    公开(公告)号：US06619394B2

    公开(公告)日：2003-09-16

    申请号：US09731873

    申请日：2000-12-07

    申请人： Mohamed Y. Soliman ,  Ali I. Mese ,  Clark E. Robison ,  James R. Birchak ,  Paul F. Rodney ,  Wei Han ,  Vimal V. Shah ,  Eugene J. Linyaev ,  Mark A. Proett

    发明人： Mohamed Y. Soliman ,  Ali I. Mese ,  Clark E. Robison ,  James R. Birchak ,  Paul F. Rodney ,  Wei Han ,  Vimal V. Shah ,  Eugene J. Linyaev ,  Mark A. Proett

    IPC分类号： E21B2800

    CPC分类号： G01V1/44 ,  E21B28/00 ,  E21B43/003

    摘要： A process and apparatus for treating a wellbore, comprising subjecting a substantially same portion of the wellbore to vibratory waves produced by a plurality of vibratory wave generators. The vibratory waves may have about the same frequency or a plurality of frequencies, and the frequencies may partially overlap, not overlap, or be modulated across a range. Additionally, the frequencies may be modulated in an oval, hoop, and flexural modes. The vibratory waves may be produced by firing the vibratory wave generators simultaneously or in sequence. Combinations of a vibrating pipe, piston pulser, or valve may be used as vibratory wave generators. In a preferred embodiment, the thickness and change of thickness of a mudcake on the interior surface of a wellbore are measured to evaluate the effectiveness of the wellbore treatment.

    摘要翻译： 一种用于处理井眼的方法和装置，包括使井筒的基本相同的部分经受由多个振动波发生器产生的振动波。 振动波可以具有大约相同的频率或多个频率，并且频率可以部分地重叠，而不是重叠，或者在一个范围上被调制。 另外，频率可以以椭圆形，环形和弯曲模式进行调制。 振动波可以通过同时或依次点火振动波发生器来产生。 振动管，活塞式脉冲发生器或阀门的组合可用作振动波发生器。 在优选的实施方案中，测量在井筒内表面上的泥饼的厚度和厚度变化，以评估井眼处理的有效性。

    Sensor configuration for nulling reverberations to image behind reflective layers
    10.
    发明授权
    Sensor configuration for nulling reverberations to image behind reflective layers 失效
    传感器配置用于使反射层后面的图像归零

    公开(公告)号：US6002639A

    公开(公告)日：1999-12-14

    申请号：US856115

    申请日：1997-05-14

    申请人： James R. Birchak ,  Batakrishna Mandal ,  James E. Masino ,  John W. Minear ,  Thomas E. Ritter

    发明人： James R. Birchak ,  Batakrishna Mandal ,  James E. Masino ,  John W. Minear ,  Thomas E. Ritter

    IPC分类号： G01V1/44 ,  G01V1/40

    CPC分类号： G01V1/44

    摘要： A transducer configuration disposed within a wellbore sonde for acoustically imaging a target region behind an acoustically reflective layer includes a transmitting transducer for producing a transmitted acoustic beamspread pattern defined by a insonified zone having a width approximately equal to a width of the transmitting transducer and a transmitting main lobe beyond the transmitting collimated zone. The transducer configuration also includes a receiving transducer disposed adjacent the transmitting transducer. The receiving transducer includes an acoustic signal reception pattern defined by a insonified zone having a width approximately equal to a width of the receiving transducer and a receiving main lobe beyond the receiving insonified zone. A beamspread angle defines an amplitude contour forming an outer periphery of the transmitting and receiving main lobes. Intersection of the transmitting and receiving main lobes behind but not within an acoustically reflective layer allows the transducer configuration to null reverberation energy from the acoustically reflective material and enhance acoustic energy received from the less reflective material disposed behind the highly reflective material.

    摘要翻译： 设置在井筒探测器内的换能器配置用于对声反射层后面的目标区域进行声学成像，包括发射换能器，用于产生由具有大致等于发射换能器的宽度的宽度的扩散区限定的透射声束扩展图案， 主瓣超出发射准直区。 换能器配置还包括邻近发射换能器设置的接收换能器。 接收换能器包括由具有近似等于接收换能器的宽度的宽度的增强区限定的声学信号接收图案和超出接收声音区的接收主瓣。 光束展开角度定义了形成发射和接收主瓣的外周的振幅轮廓。 发射和接收主波瓣在后面但不在声反射层内的交叉允许换能器配置将来自声反射材料的混响能量消除，并增强从设置在高反射材料后面的较小反射材料接收的声能。