Example: stock market
Sonic Acoustic Wave Logs
Found 2 free book(s)
Porosity Logs - UiO
www.uio.noSonic • A log that measures interval transit time (Δt) of a compressional sound wave travelling through the formation along the axis of the borehole • The acoustic pulse from a transmitter s detected at two or more receivers. The time of the first detection of the transmitted pulse at each receiver is processed to produce Δt.
16. THE SONIC OR ACOUSTIC LOG 16.1 Introduction
homepages.see.leeds.ac.uk16. THE SONIC OR ACOUSTIC LOG 16.1 Introduction The sonic or acoustic log measures the travel time of an elastic wave through the formation. This information can also be used to derive the velocity of elastic waves through the formation.