Well diagnostics
Gansar cement evaluation
PETRONAS Carigali · Gansar, offshore Peninsular Malaysia · 2024
Problem & challenge
Cement integrity behind tubing in a monobore completion needed to be assessed before production, with accurate depth correlation ahead of tubing perforation.
Objective
- Determine cement integrity behind tubing prior to production.
- Correlate tubing depth and identify any offset using GRCCL.
Solution
Radial cement bond logging combined with gamma-ray casing-collar locator logging.
Result
Reliable cement-evaluation logs were delivered for client assessment of cement quality, with GRCCL depths confirming depth accuracy.
