Reservoir Delineation by Wireline Techniques

Abstract Wireline logs provide complete records of all formations in a well. Log responses are functions of lithology, porosity, fluid content and textural variations of informations. This information, coupled with characteristics of sedimentary structures derived from high resolution dipmeter surveys, provide clues to the sedimentary environment and allow estimation of the reservoir geometry and orientation. A set of depositional models is established for the production geologist. A new technique designed to make rapid and accurate multiple formation pressure measurements confirms the hydraulic separation or connection of reservoirs.