A Processing Method of Picking Micro-Seismic Effective Events with High Order Moment
详细信息
- 责任者：Song Weiqi (Earth Science and Technology College ; University of Petroleum ; Qingdao 266580 ; China) ; Yu Zhichao
- 刊名：Geophysical Prospecting for Petroleum
- 出版年：2013
- 卷期：52(4)
- 关键词：地震勘探 ; seismic exploration ; 信噪比 ; signal-to-noise ratio
- 页码：p.388-393
- 图表：illus., 24 refs.
- 分类号：1600
- issnNo：ISSN1000-1441
- isbnNo：CN32-1284/TE
摘要
The conventional method of energy ratio with different windows has high leakage pickup rates to effective events for low S/N seismic record.Based on the higher order moment theory,we altered long &short time window energy ratio method into high order moment time window energy ratio method.Aiming at the variation characteristics of micro-seismic record,we take the logarithm of computation result and use the adaptive window to replace the fixed window for the complex characteristics of micro-seismic signal in the time record.Then,the effective events are picked up by using correlation analysis results.Finally,the application result indicates the effectiveness of the method.
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