Abstract:

Sonic full waveform analysis techniques such as Stoneley reflections and differential energy analysis have been used to identify fracture and evaluate their effectiveness.The cross component energy from the four component waveform rotations is also used to describe the effective fracture networks in the carbonates,which can be achieved by analysing the minimum and maximum energy of the anisotropy computation and verifying consistent characteristics between different wells with actual production from those wells.The multipole array acoustic tool can enhance the precision of seismic interpretation.It's also useful in lithology identification and gas-bearing bed and fractures detection.To draw pictures of litho-mechanics parameters that are suitable for production of Liaohe oil field,this method was put into production.

Key words: multipole array acoustic tool, stress, compress wave, shear wave, fracture, Liaohe oil field