Delta Fringe Line Recognition Based on Seismic Matching Pursuit Instantaneous Spectral Characteristics
详细信息
- 责任者：Zhang Fanchang (School of Geoscience ; China University of Petroleum ; Qingdao 266555 ; China) ; Li Chuanhui
- 刊名：Oil Geophysical Prospecting
- 出版年：2012
- 卷期：47(1)
- 关键词：地震勘探 ; seismic exploration ; 三角洲环境 ; deltaic environment
- 页码：p.82-88
- 图表：13 illus., 12 refs.
- 分类号：1600
- 出版序号：20130494
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
This paper first presents the principle of seismic signal matching pursuit decomposition and the computation of high precision instantaneous spectra, then proposes a new method for wedge edge interpretation with its instantaneous spectral features in time-frequency domain by analyzing the time domain and frequency domain responses of the wedge edge. Actually, the delta fringe deposit thickness is not the same along different direction. In this situation, this paper introduces kernel principal component analysis method to integrate the effective information of pinch-out line contained in the original dominant instantaneous spectral components. Therefore, the whole face of pinch-out line can be fully recognized and the non-uniqueness in delta fringe interpretation is extremely reduced.