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用于检测井身倾斜角及倾斜方位、套损程度和套损方位的方位—井壁超声成象组合测井仪 ,由挠性陀螺方位仪和井壁超声成象仪组合而成。挠性陀螺方位仪利用挠性速率陀螺和加速度计测量倾斜角、倾斜方位角及成象仪所需的方向角 ;井壁超声成象仪利用超声波在介质中的传播和反射特性 ,由超声换能器发射和接收脉冲或超声波 ,根据套管内壁或井壁的回波幅度和回波时间检测套管内壁或井壁的自然状况。经现场试验验证 ,该仪器的结构设计合理 ,信号传输可靠 ,测量的稳定性、重复性和一致性好、精度高 ,能准确地指示出井身状况及所有异常处的方位 ,为用户分析判断套损机理提供准确信息。
The wellbore ultrasonic imaging combination logging tool, which is used to detect the inclination of the wellbore and the azimuth, the extent of casing damage and the azimuth of casing damage, is a combination of the flexible gyroscope and the borehole ultrasonic imager. Flexible gyro azimuth meter uses flexible gyroscope and accelerometer to measure tilt angle, azimuth angle and direction angle needed by the imager; borehole ultrasonic imager utilizes the propagation and reflection characteristics of ultrasonic wave in the medium, The transmitter emits and receives pulses or ultrasonic waves and detects the natural condition of the inner wall or the wall of the casing according to the echo amplitude and the echo time of the inner wall or the wall of the casing. The field test shows that the instrument has reasonable structure design, reliable signal transmission, good measurement stability, repeatability and consistency, high precision and can accurately indicate the well conditions and the location of all abnormalities. Loss mechanism to provide accurate information.