Well diagnostics
Field B cement evaluation
PETRONAS Carigali · Field B, 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.
Related case histories
Field A well integrity surveillance
PVEP POC · Field A, offshore Vietnam
Leak / communication points and flow behind casing were identified and verified in six wells, with a clear picture of corrosion in tubing and production casing.
Annulus Pressure Investigation
Field reference · Offshore Malaysia
Annulus communication and flow behaviour were identified, giving a clear basis for the next integrity decision.
Cased-Hole Leak Investigation
Field reference · Southeast Asia
The leak path and barrier condition were identified, supporting a targeted repair rather than a speculative workover.