Well diagnostics
Field A well integrity surveillance
PVEP POC · Field A, offshore Vietnam · 2024
Problem & challenge
A multi-well surveillance campaign was required to determine tubing and production-casing corrosion, internal geometry, packer or tubing-body leakage, and flow behind casing.
Objective
- Determine corrosion status of production tubing and outer casing.
- Check internal tubing diameter condition.
- Identify tubing-body or production-packer leakage and flow behind casing.
Solution
Hyperseal deployed ALFA acoustic leak-flow analysis, MTD magnetic thickness detection and MFC multi-finger caliper logging as an integrated integrity surveillance programme.
Result
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.
Related case histories
Field B cement evaluation
PETRONAS Carigali · Field B, offshore Peninsular Malaysia
Reliable cement-evaluation logs were delivered for client assessment of cement quality, with GRCCL depths confirming depth accuracy.
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.