Principle for Selection of Acquisition Bin under Limited Coverage Density

Abstract

Abstract: Wide application of high density and wide azimuth seismic acquisition technology has significantly improved the seismic exploration precision. High coverage density, small bin and point collection have become the development directions of seismic acquisition technology to obtain more accurate data. However, as for actual production, it is impossible to unlimitedly increase acquisition strength under the limitations of acquisition cost. How to obtain the optimized acquisition effect under the condition of limited cost is a widely-studied problem in the industry at the present time. With the analysis of acquisition bin of 3D high-density seismic data based on PSTB in a certain area of West China, it is considered that the accuracy of seismic data improved by small bin is based on the condition of high coverage density. Overemphasis on small bin size cannot necessarily obtain the data of a higher resolution under the condition of high coverage density. Appropriate increase of bin size can help improve the uniformity wave field and amplitude fidelity of data imaging, acquiring the data of higher precision.

Key words: seismic acquisition geometry, bin size, coverage density, signal-to-noise ratio, seismic acquisition, acquisition footprint

Wang Zhengjun, Su Weimin. Principle for Selection of Acquisition Bin under Limited Coverage Density[J]. China Petroleum Exploration, 2015, 20(6): 44-51.

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