释文：利用感光照像或普通电视没备研究钻孔时，需要用清水或气体替换钻井泥浆。利用声波电视测井，则可以在任何不含气的均匀液体，如水、泥浆、原油中进行测量。声波电视测井仪的简单工作原理如图所示。由换能器每秒发出2000次高频声(约2MHz)脉冲。
井下声波电视测井图上的一种异常现象。在电缆提升的过程中，由于下井仪器在井中的不稳定运动，而在阴极射线管上显示出异常的一种效应。
On borehole televiewer logs. An unusual effect produced on the cathode-ray tube display by erratic movement of the tool as it drags along the borehole.
本文从超声波信号模型出发，对超声电视测井井下仪器的接收机、发射机的指标和方位检测精度进行了详细分析。
With a model for the ultrasonic signal, the requirement on receiver and transmitter performance and the detection accuracy of the bearings of an ultrasonic borehole televiewer are discussed.
电视成像测井技术包括可见光电视成像测井和超声波电视成像测井，可对井壁和套管进行360度扫描，成像显示，图象逼真，资料准确。
Television imaging logging technique, including visible television imaging logging and supersonic imaging logging, can perform 360 degree scanning of well sidewall and casing with great accuracy.
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