Abstract
The use of seismic attributes for understanding reservoir complexity has been proven to work in several fields. Thus, we demonstrate applications of seismic attributes for evaluating the oil and gas reservoirs in the eastern portion of the Rio del Rey (RDR) Basin. The presence of these fluids in twenty-six (26) reservoirs of the study area was confirmed with the help of Larson VizEx Pro software using well and seismic data. The 3D merged seismic data reprocessed in 2011 were used to extract the root-mean-square (RMS) and maximum amplitude attributes for each of the reservoirs. Forty-seven (47) RMS and maximum surface attributes were generated using Petrel E&P 2014 software. Seven (7) of these attributes have been presented. Quality control using Interactive Petrophysics (IP) software was applied on the reservoir fluid type found in each well. These fluid types were later superposed on each of the amplitude maps to match the corresponding amplitude responses. A good match could be observed between some well tops and their corresponding amplitude values. The results obtained indicate that GH and WX concessions could be the best concessions in the eastern part of the RDR Basin since most of their reservoirs, especially WX S6.3 maximum amplitude map, matched with their well fluid contents. The results obtained have been used to propose potential areas for further drilling.
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More From: Journal of Petroleum Exploration and Production Technology
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