USE OF AN EFFECTIVE TOOL MODEL IN SONIC LOGGING DATA PROCESSING

摘要

Methods and apparatus facilitating radial profiling of shear slowness aredisclosed. According to some aspects of the invention, acoustic tool bias isaccounted for in the calculation of radial profiles. According so someaspects, acoustic tool bias is accounted for by replacing acoustic toolstructure with a resonance-impedance model. The resonance-impedance modelingaccording to principles of the present invention is applicable to vertical,deviated, and horizontal boreholes.