This paper discusses challenges of formation sampling for both openhole and casedhole conditions for both heavy and ultra heavy oils. Three openhole and three casedhole field examples will be discussed in this paper from pre-job planning to operation results. For openhole cases, the use of 3D Radial Probe application will be introduced with different types of displacement downhole pump to help successful sampling operation.

This paper discusses challenges of formation sampling for both openhole and casedhole conditions for both heavy and ultra heavy oils. Three openhole and three casedhole field examples will be discussed in this paper from pre-job planning to operation results. For openhole cases, the use of 3D Radi...