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1. 发明授权

US4703459A Directional acoustic logger apparatus and method 失效
公开(公告)号：US4703459A
公开(公告)日：1987-10-27
申请号：US677776
申请日：1984-12-03
申请人： Frank M. Bower
发明人： Frank M. Bower
IPC分类号： E21B43/119 , E21B47/02 , E21B47/10 , G01S3/805 , G01V1/46 , G01V1/40
CPC分类号： E21B47/02 , E21B43/119 , E21B47/101 , G01S3/805 , G01V1/46
摘要： An acoustic logging apparatus and method are disclosed for determining the direction of a subsurface noise source, such as a blowout well or fluid channeling behind well casing. The apparatus comprises cylindrical piezoelectric crystal transducers processed to buck each other. The method employs such an apparatus and includes generating and observing output from the crystals. The direction of the noise relative to the position of the apparatus is indicated by determining the position of the crystal transducers when their phase and amplitude differences are at a minimum. The transducer leading in phase at a point perpendicular to said position is the transducer closest to the noise source and is used to indicate the absolute direction of the noise.

2. 发明授权

US4744416A Directional acoustic logger apparatus and method 失效
标题翻译：定向声记录仪设备及方法
公开(公告)号：US4744416A
公开(公告)日：1988-05-17
申请号：US80132
申请日：1987-07-31
申请人： Frank M. Bower
发明人： Frank M. Bower
IPC分类号： E21B43/119 , E21B47/02 , E21B47/10 , G01S3/805 , G01V1/46 , E21B33/13
CPC分类号： G01S3/805 , E21B43/119 , E21B47/02 , E21B47/101 , G01V1/46
摘要： An acoustic logging apparatus and method are disclosed for determining the direction of a subsurface noise source, such as a blowout well or fluid channeling behind well casing. The apparatus comprises cylindrical piezoelectric crystal transducers processed to buck each other. The method employs such an apparatus and includes generating and observing output from the crystals. The direction of the noise relative to the position of the apparatus is indicated by determining the position of the crystal transducers when their phase and amplitude differences are at a minimum. The transducer leading in phase at a point perpendicular to said position is the transducer closest to the noise source and is used to indicate the absolute direction of the noise.
摘要翻译：公开了一种用于确定地下噪声源的方向的声学测井装置和方法，例如在井套管之后的井喷井或流体通道。该装置包括被处理成相互抵消的圆柱形压电晶体换能器。该方法采用这种装置，并且包括产生和观察晶体的输出。当相位和振幅差最小时，通过确定晶体换能器的位置来指示噪声相对于装置位置的方向。在垂直于所述位置的点处相位导通的换能器是最靠近噪声源的换能器，用于指示噪声的绝对方向。

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