Cement bond tool for cased-hole cement integrity evaluation
The Cement Bond Tool is a cased-hole cementing logging tool developed to determine cement bond integrity of well casing. Bond quality is assessed by evaluating the effect of casing, cement, and formation on the amplitude of the acoustic wave generated by the tool. Higher received amplitude indicates poorer bond integrity.
Existing design notes describe one transmitter and two receivers with 3 ft and 5 ft spacing. The tool can be combined with analog GR and CCL tools for depth correction. Published features include cementing evaluation, selectable gain according to condition, and H2S-resistant construction as stated on the current page.
Share casing size, well conditions, and whether GR/CCL combination is required so CNPS can align the cement-bond logging configuration to your program.
Key applications
- Cased-hole cement bond integrity evaluation
- Amplitude-based cement-to-casing quality assessment
- Combined GR and CCL depth-correction logging strings
- Wells where H2S-resistant tool construction is specified
What to confirm with CNPS
- Casing size / rating / well medium and H2S requirements
- Need for GR / CCL combination and gain settings
- Telemetry or memory mode and string length constraints
