Quantitative Analysis of Cement Bond Log
Fa lin, Cong Changxi and Ma Yuying
Cement Bond Log virtually measures acoustic parameters related to cement-casing interface to determine the quality of cementation. Quantitative relationship between the quality of cementation and the amplitude of the first arrival and sonic transit time in casing is derived. The concept of quasi-compressional ware and the integration of inherent sonic attenuation and sonic scattering factor are discussed in this paper. The compensation principle of two transmitters-two receivers sonic amplitude log is also given.