Comprehensive Geophysical Prediction Method of Basement Lithology —An Example of Binbei Area, Songliao Basin

详细信息   

• 责任者：Li Chengli (Exploration and Development Research Institue of Daqing Oilfield Company Ltd. ; Daqing 163712 ; China) ; Cui Ruihua
• 刊名：Chinese Journal of Geophysics
• 出版年：2011
• 卷期：54(2)
• 关键词：基底 ; basement ; 重力异常 ; gravity anomaly ; 磁异常 ; magnetic anomaly ; 松辽平原 ; Songliao Plain
• 页码：p.491-498
• 图表：10 illus., 1 table, 27 refs.
• 分类号：1600
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

摘要

On the basis of comprehensively analyzing the cause of gravity and magnetic anomalies of basin, in this paper a series of processing and interpretation methods and techniques of integrated geophysical data for estimating the basement lithology were introduced. The formation-separating technique constrained by the seismic structural interface with gravity data can acquire the gravity anomalies caused by basement lithology, which is affected by density difference between interfaces. The method for calculating equivalent-density difference is neatly presented.