Digital Sonic (SDT) Full Waveform Logging Applications in Western Canada


Bob Dennis,



For Twenty years, we have been analysing sonic information by looking at first motion of the waveform. With the advent For many years we have been utilizing only the first mo- of digital techniques the full waveform information can now tion of the sonic waveform. With the advent of Waveform be readily recorded and analysed in real time at wellsite. Digitization capabilities, Multiple reciever Arrays and new waveform processing techniques, the Full Acoustic Informa- This paper centers on applications of the waveform infor- tion now can be recorded and analyzed at the wellsite for mation ( Compressional, Shear and Stoneley events) that compressional, shear and fluid transit times and energies.