Quantifying the economic impact of 4D seismic projects

摘要

Time-lapse 3D, or 4D, seismic imaging has been analyzed by the industry for more than a decade, with a growing number of suc- cessful cases being reported in the literature. Two of the most recent 4D case studies reporting success are Draugen in the Nor wegian North Sea and Gannet-C on the U.K. continental shelf. Both have been technical successes, providing good images of Time-lapse changes in the reservoir. These 4D results have changed Drilling locations and reduced the risk associated with costly field- Development decisions. (Note: from this point forward, "4D" is Used to refer to time-lapse seismic imaging).