Abstract
Numerical simulations of acoustic logging were performed to infer apertures of two parallel fractures, intersecting well GF -2. The estimation is made by comparison between the results of a full waveform acoustic log and computer simulations. The simulation models are constructed based upon the results of acoustic, BHTV and other logging data. Equations of wave propagation are solved using the staggered grid finite-difference method. The best agreement between the measurements and simulated results is obtained with a model in which the fracture apertures are 1cm and a 1 cm-thick mud cake is present inside the borehole wall.
