Bridging the Gap between Seismic Processing and Quantitative Interpretation - Case Study in the Neuquén Basin, Argentina
T. Santana, D. Giunta and A. Kautyian
Event name: 77th EAGE Conference and Exhibition 2015
Session: Novel Interpretation Studies I
Publication date: 01 June 2015
Info: Extended abstract, PDF ( 2.35Mb )
Price: € 20
Seismic data conditioning, quality control during processing and proper well to seismic calibration is important prior to deriving attributes and reservoir properties from seismic data. Pre and post stack well to seismic ties, wavelet estimation and synthetic forward modelling at calibration wells will enables uncertainty assessment of the seismic data to improve imaging and data quality during processing. A case study to illustrate the impact of analysing critical products during seismic processing with special care in phase stability and relative amplitude preservation to obtain seismic data suitable for reservoir characterization and quantitative interpretation will be described. The study area is covered by 3D seismic acquired in 2010 and includes wells with a complete set of acoustic logs, necessary for quantitative analysis in the reservoir section, which consists of a complex Upper Jurassic Lower Cretaceous siliciclastic carbonate mixed system. The intermediate processed products, in form of full stack and small pre stack gathers volumes around calibration wells, needs to be adapted to each processing project based on objectives, subsurface geology and available seismic and well data, and are considered to provide an important business impact at different scales, from exploration to development, in areas where quantitative seismic interpretation is intended.