Pseudo 3D Seismic Generation From Multi-Vintage 2D and 3D Seismic Data for Hydrocarbon Exploration at Eastern Indonesia Basin

Abstract

Pseudo 3D seismic generation using existing 2D seismic lines and 3D seismic data has been conducted. We implemented several processes such as amplitude balancing, data selection, trimming, sampling rate equalization, and quality check for seismic tie among 2D lines that might be found due to acquisition geometry, processing, vintages, and difference of seismic instruments. Sample of amplitudes from the entire 2D seismic data were employed as ‘seeds points’ to be populated on the defined seismic 3D layout by applying robust geo-statistical method. Pseudo 3D seismic generation utilized Nearest Neighbor Algorithm combined with the Kirchhoff Demigration and Remigration guided by seismic horizons. The result of pseudo 3D seismic was qualitatively and quantitatively QC-ed using several approaches e.g. direct comparison of pseudo 3D seismic- 2D lines composite and section comparison in the adjacent location. Pseudo 3D result depends on the input data such as quality, distribution of input data, and distance between input data. The quality of pseudo 3D result is measured by the uncertainties map, lower uncertainty, higher confidence and vice versa.