Publication Name: Australasian Exploration Geoscience Conference 2019
Authors: Rafael Souza, David Lumley, Jeffrey Shragge, Alessandra Davolio, Denis Schiozer
Date Published: September 2019
Number of Pages: 5
Abstract:
Limitations on the vertical resolution in seismic data and fluid-flow models challenges the accurate interpretation of time-lapse (4D) seismic signals to identify fluid saturation changes within hydrocarbon reservoirs. Conventional streamer seismic data typically have a vertical resolution of 10-20 m at reservoir levels due to the lack of both lower and higher frequencies in the seismic spectrum, while fluid-flow simulations commonly run with significantly finer-scale vertical model grid spacings on the order of meters. Recently developed seismic acquisition methods (i.e., broadband seismic) have improved vertical seismic resolution relative to conventional acquisition by enhancing both the low- and high- frequency components. We investigate whether this improved seismic vertical resolution will result in potential benefits for fluid-flow and reservoir monitoring.