Kristin Field is a recently discovered gas and condensate field offshore Norway (See Figure 1 of Dolberg et al.). Reservoir sandstones are tidally influenced, laterally continuous shallow marine deposits of Jurassic age (Figure 1). A diagenetic overprint during progressive burial to depths of 5 km creates a patchwork of reservoir quality making 3-D mapping of these properties challenging. At the start of reservoir modeling, two exploration wells had penetrated the reservoir. One main focus was to predict lateral variations in reservoir quality (porosity and permeability). During the project, two additional appraisal wells were drilled and used for reservoir characterization refinement. Four potential reservoirs exist at Kristin Field (Figure 1). Only the Garn and Ile Formations are proven to be hydrocarbon-bearing. For this study, porosity prediction techniques are applied only to the Ile Formation. Total thickness of Ile is close to 50 ms TWT (80–100 m), with a depth of approximately 4.1 s (4600 m).