Navegando por Assunto "Estimativa da wavelet"

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Tying seismic to well based on deterministic wavelet estimative and predictive deconvolution: application in the North Sea seismic
(Universidade Federal do Pará, 2015-12-04) MACEDO, Isadora Augusta Santana de; FIGUEIREDO, José Jadsom Sampaio de; http://lattes.cnpq.br/1610827269025210; SILVA, Carolina Barros da; http://lattes.cnpq.br/5306784916926352
Wavelet estimation as well as well-tie procedure are important tasks in seismic processing and interpretation. In this work we perform comparative study of the well-to-seismic tie. The comparison relies on different approaches to estimate the wavelet: a deterministic estimation, based on both seismic and well log data, and a statistical estimation, based on predictive deconvolution and the classical assumptions concerning the convolutional model. Tests with numerical data show the estimation of seismic wavelet with reasonable accuracy for both cases. The feasibility of this approach is also verified on the real seismic and well data from Viking Graben field, North Sea, Norway. The results also shown the influence of the washout zones on the well log data on the well to seismic tie.