Publications

The seismic enhancement has become a common practice in increasing vertical resolution of seismic data in order to capture for instance thin layers. Even though there are various seismic enhancement methods that offer similar solutions, Sparse Layer Inversion (SLI) has proven to be very promising tool to improve the vertical and the horizontal resolution aspect. It helps the interpreters to extract meaningful information from seismic data such as high-resolution structural and stratigraphic features, through its derived reflectivity. SLI uses an inversion strategy which is based on the idea that any local earth impedance structure can be represented by superposition of layers. In addition to the demonstration of a successful application of SLI on post-stack seismic data, we briefly describe the SLI workflow for reservoir characterization using pre-stack seismic data. Part of our analysis is to understand the reliability of the AVO and inversion response given by the SLI workflow in the light of the obvious changes in frequency and wavelet with offset. The procedures are tested on a real dataset showing a sand-reservoir class I AVO. Using the proposed procedures, we confirm that the AVO effect is preserved and the inversion resolution is increased when applying SLI on the pre-stack seismic data. Consequently the SLI application is fulfilling its position as a friendly and non-cosmetic seismic enhancement for reservoir characterization purpose.