Application status and research progress of dipole acoustic well logging

Dipole acoustic logging technology has come into service nearly 30 years,with its advantages of shear wave measurement and shear wave anisotropy analysis,it's widely used in well-logging,seicmic,geology and petroleum reservoir engineering and other project fields. The compressional wave,shear wave,stonely wave and the other reservoir acoustic informations contained in the dipole acoustic logging data could effectively solve many practical problems such as reservoir fluid property discrimination, stress direction determination, fracture analysis, reservoir fracturing evaluation through the prosessing of wave slowness extraction,wave energy calculation, share wave anisotropy analysis, rock mechanic parameters calculation,etc. It improves the capacity of acoustic logging in solving petroleum geology and engineering problems effectively. The application status of dipole acoustic logging at home and abroad is stated in detail in this paper, and the newlydeveloped technology and development direction of the actual equipment,detection mode and data processing is analyzed and discussed briefly.