Advantages of seismic data special processing using the common reflection surface method at license areas of Samaraneftegas JSC

UDK: 550.834.055
DOI: 10.24887/0028-2448-2019-11-94-97
Key words: seismic works, common depth point (CMP)3D, digital processing, joint interpretation, common reflection surface (CRS) technology, potential
Authors: K.S. Reytyukhov (SamaraNIPIneft LLC, RF, Samara), M.N. Fedotov (Rosneft Oil Company, RF, Moscow), S.P. Papukhin (Samaraneftegas JSC, RF, Samara), R.F. Atnabaev (SPC Geostra LLC, RF, Ufa)

The article highlights the results of digital processing and integrated interpretation of CMP-3D seismic data made using common reflection surface (CRS) technology at one of the areas of Samaraneftegas JSC in the Volga-Ural region. The current tasks of modern seismic exploration, being solved by a group of companies Rosneft, are estimated. The existence of special technologies for processing seismic data that have appeared recently that can solve these problems is noted. The history of the emergence of CRS technology and its development, the basis and essence of the CRS method are briefly described. The place of CRS technology in the existing processing chain of seismic data processing is estimated. To illustrate the effectiveness of the processing and interpretation processes, one of the Samaraneftegas's projects in the Ural-Volga region was selected. The results of processing seismic data by a standard graph and a graph that includes the use of special technology CRS are considered. A comparison is made with a qualitative and quantitative analysis of the results of the work of 2019 with the previously obtained results of 2012. During the comparison, the advantages of the results obtained using the CRS technology were emphasized. The advantages are noted in the aspects of traceability, resolution of the final seismic cubes, and restoration of the upper part of the section. In terms of the advantages of interpretation, the advantages of the results of special processing are noted both on the maps of the structural plan and on the schemes of dynamic attributes. The potential of the technology in the direction of obtaining new geological and geophysical information is assessed in conditions when the available seismic data do not reveal their full potential, or when obtaining new data is impossible or is associated with high costs.


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