The Application of Reliability Analysis Technology for Improved Resolution of Seismic Data in M Formation of S Block in Canada

The reservoir of M formation of S block in Canada is tight sandstone, the resolution of seismic data is relatively low in target formation, it’s difficult to predict the reservoir accurately by means of limited wells. By adopting several different methods, the reliability of the improved resolution seismic data was analyzed, the final goal is to make sure the new processed data can be used for reservoir interpretation and analysis work, and the risk can be decreased in exploration and development. Through the comparison and analysis between the original and the improved resolution seismic data, checking the influence to the parameters such as frequency, amplitude and phase during the processing, the reliability for the processed result was analyzed from 5 aspects, they were spectrum analysis of different band, interval attributes analysis, spectrum decomposition effect analysis, multi seismic attributes analysis (profile and slice) and well calibration analysis. The analysis results show that the new data improves the reservoir imaging quality, restores the hidden thin layer information, and effectively enhances the high-frequency part of the spectrum with fidelity, which can support the geological study and analysis of the reservoir in this area. By using the reliability analysis technology for improved resolution of seismic data, more targets and more subtle information were found in tight sandstone in M formation of S block in Canada, and this technology can be applied in other areas, especially the areas with relatively low resolution seismic data, also has a certain generalization.