Case Study
Displacement Efficiency - Validation with Cement Bond Log
Case Study Displacement Efficiency - Validation with Cement Bond Log CHALLENGE Verify displacement efficiency modeling with field results. SOLUTION Compare CEMPRO + displace- ment efficiency results with a cement bond log from a well with gas migration. RESULTS The CEMPRO + displacement efficiency calculations showed the top of the desired cement concentration at the same height indicated on the cement bond log. CEMPRO + was used as part of an analysis to help understand a cement job with a significant amount of mud channeling that resulted in the unplanned communi- cation between a gas zone to surface. The displacement efficiency results were compared to the cement bond log to validate the post-job analysis conducted. The results from CEMPRO + show excellent mud displacement