Abstract

Both the Common-Offset Common-Reflection-Surface (CO CRS) stack and Prestack Seismic Data Enhancement (PSDE) are techniques that allow to regularize and enhance the signal-to-noise ratio of prestack data. Such data provides an improved input to time and depth migration and should therefore also result in improved prestack migration results. Here, we present the application of eni’s 2D/3D-narrow-azimuth CO CRS stack implementation to a 2D land dataset followed by a Kirchhoff Prestack Time Migration. The results are compared to a Prestack Time Migration of the original prestack data, a PSDE-based time migration, and a Kirchhoff Poststack Time Migration of the Zero-Offset CRS stack. As will be shown, the CO-CRS stack provides best input to migrate the dataset.

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