Improving Pre-Stack Seismic Data Resolution Based on Inverse Q Filter

Abstract:

The precision of seismic reflection data does not fulfil to explore private and complex structure oil-gas pools. So we need to improve the resolution of seismic data. To achieve this, we used the inverse Q filter methods to improve the resolution for the seismic data. The results for processing the pre-stack seismic data indicated that the inverse Q filter method can improve peak frequency and frequency bandwidth. Low and middle-high frequency components in those results are reasonable, and its signal/noise ratios are obviously larger than that for other methods in middle-high frequency. Moreover, the results using various Q values indicated that the peak frequency is little added and the frequency bandwidth is expanded when Q value is reducing, but the signal/noise ratio is reducing. Moreover, the improving of the signal/noise ratio is very small when Q value is larger than 200.0, namely addition for Q value only gains reducing of the peak frequency and the bandwidth.

• Periodical: Applied Mechanics and Materials (Volume 331)
• Pages: 617-621
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.331.617
• Online since: July 2013
• Authors: Hong Bing Zhang, Cheng Hao Cao, Zhi Wei Dan, Zuo Ping Shang, Tian Cai Li, Huan Wan
• Keywords: Generalized S Transform, Improve Resolution, Inverse Q Filter, Pre-Stack Seismic, Signal/Noise Ratio

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