A breakthrough in 3D seismic interpretation for stratigraphic reservoir detection
Abstract
The paper presents the “global seismic interpretation method”, developed by Pauget et al. [1]. A 3D Relative Geologic Time (RGT) model was obtained directly from the 3D seismic volume which is the outcome of this method. In the 3D RGT model, the geologic time is continuous, and a relative geologic age can be interpolated and assigned for to every voxel of the seismic volume.
The dataset in this study is the Maui 3D seismic volume from Taranaki Basin, offshore New Zealand. A stack of four hundred continuous stratigraphic horizons was quickly produced from the Maui RGT model, showing clearly and in detail the geological features of even complicated areas where classical methods failed to achieve good results. Besides, integrated with seismic attributes such as RMS amplitude and/or Spectral Decomposition, the horizon stack enables identification of geological elements, stratigraphic insights, and paleo-depositional environments in greater detail for stratigraphic reservoir detection and characterisation.
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