Gas Tracer Modelling in Field Studies using a Conventional Reservoir Simulator

The objective of this work was to use gas tracers for production monitoring and reservoir management in a North Sea oil reservoir. The injection strategy for the field involved immiscible WAG and the field in question has experienced a period with pressure decline leading to production under bubble point, and is currently being repressurised. The tracer production has been simulated using a conventional reservoir simulator. We have treed to minimise the numerical diffusion by grid refinement, reduction of time step, and selecting different tracer modelling options.