Utvikling av nytt måleprinsipp for måling av barrierer gjennom flere rør i olje og gass brønner.

Offentlig prosjektsammendrag

Well integrity depends on reliable knowledge of cement and barriers behind casing, but today no method exists to evaluate this through production tubing. WellGuard develops a new measurement principle. The main target is to develop a tool, and demonstrate, also in offshore pilots, that the method can clearly distinguish between bonded cement, unbonded cement, and fluid-filled annuli behind two casings. The main challenges are to design robust downhole electronics and mechanics for harsh well conditions, and to develop signal processing that can extract barrier-relevant information from complex data. The approach combines FEM modelling, laboratory rigs, prototype development, and offshore testing, where results are compared with conventional logs after tubing removal. The outcome will be new knowledge, a validated technology, and a new service for global well integrity.