This paper provides an overview of the application of 4D [time-lapse (TL)] seismic technology by the operator during the past decade and future perspectives. Some results shared in this publication, from both pre- and post-salt reservoirs, include increased hydrocarbon sweep efficiency and recovery factor in siliciclastic reservoirs in the Campos Basin, guidance of intervention in wells, and improvement of predictability of geological and engineering models.
Operator Use of Seismic Monitoring Technologies
In recent decades, streamer technology has been applied to monitor production-derived effects in many Brazilian post-salt hydrocarbon fields. The main reason for the use of this technology, which has low to medium repeatability, for reservoir monitoring is that it is sufficient to monitor reservoirs with low rock-frame stiffness. The operator obtained success in TL projects using streamer in several siliciclastic reservoirs.
