Principle,progress and prospect of cavity measuring sonar instruments
Sonar survey plays an important role in salt cavern gas storage building,operation and maintenance.The measuring principle of cavity sonar is similar to the ultrasonic caliper method in geophysical logging,and its analysis method is similar to that of active sonar,which is equivalent to the combination of the two.With the vigorous development and operation of domestic salt cavern gas storages,it is urgent to develop cavity measuring sonar instruments to meet the requirements of safe and efficient construction and operation of gas storages for salt cavern shape measurement.On the basis of analyzing the main cavity measuring sonar instruments at home and abroad,this paper emphatically discusses the particularity of the instrument,gives the key technology and development suggestions of the instrument development,and provides reference and basis for the development of a new generation of instruments.
Salt cavern gas storageSonar surveyUltrasound caliperSonic range findingSonic loggingAcoustic velocity