地震勘探观测系统成像效果量化分析
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
依据三维地震勘探观测系统的对称性、连续性、均匀性和充分性,定性分析观测系统各参数对叠前成像效果的影响,以此优选观测系统相关参数,设计观测系统。但目前这类方法尚未达到量化分析程度。本文使用双聚焦计算方法,基于克希霍夫积分偏移计算原理,以观测系统双聚焦主瓣与最大旁瓣的比值作为成像效果量化分析指标,并通过地质模型和实例资料的应用效果验证了该方法的有效性,为三维地震勘探观测系统及其参数的优选与设计提供了一种新的量化分析法。
In order to have high quality seismic imaging,some analysis approaches of seismic data acquisition geometry parameter influences on prestack data imaging are developed in recent years based on3 D geometry symmetry,continuity,uniformity,and sufficiency.So seismic data imaging-oriented geometry design can be adopted.However these approaches are qualitative analysis.We propose in this paper a 3Dseismic geometry quantitative analysis approach for this purpose.Taking the main lobe/largest side lobe as an indicator,we use the double focusing algorithm based on Kirchhoff integral migration to do this.Geological model and real data tests verify the correctness of the proposed approach.
引文
[1]尹成,吕公河,田继东等.三维观测系统属性分析与优化设计.石油地球物理勘探,2005,40(5):495-509.Yin Cheng,Lv Gonghe,Tian Jidong et al.Three-dimensional observation system property analysis and optimization design.OGP,2005,40(5):495-509.
    [2]碗学俭,王广智,杨波等.影响观测系统采集脚印的因素分析.中国石油勘探,2009,14(6):60-64.Wan Xuejian,Wang Guangzhi,Yang Bo et al.Factors influencing the observation system of acquisition footprints analysis.China Petroleum Exploration,2009,14(6):60-64.
    [3]谢城亮,杨萌萌,刘学伟等.基于面元炮检距均匀性相关系数的三维观测系统评价.石油地球物理勘探,2012,47(6):857-862.Xie Chengliang,Yang Mengmeng,Liu Xuewei et al.Based on surface element offset uniformity coefficient of correlation of three-dimensional observation system evaluation.OGP,2012,47(6):857-862.
    [4]狄帮让,王长春,顾培成等.三维观测系统优化设计的双聚焦方法.石油地球物理勘探,2003,38(5):463-469.Di Bangrang,Wang Changchun,Gu Peicheng et al.Three-dimensional observation system optimization design of double focusing method.OGP,2003,38(5):463-469.
    [5]秦广胜.三维观测系统对叠前成像效果的影响分析.石油地球物理勘探,2010,45(增刊1):6-8.Qin Guangsheng.Three-dimensional observation system's influence on the effect of prestack imaging analysis.OGP,2010,45(S1):6-8.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心