针对岩性圈闭的正演照明采集参数优化设计  

Optimization Design of Forward Lighting Acquisition Parameters for Lithological Traps

作　　者：罗伟[1,2,3] 阎贫 万琼华[2] 陈兆明 黄鑫 LUO Wei;YAN Pin;WAN Qionghua;CHEN Zhaoming;HUANG Xin(CAS Key Laboratory of Ocean and Marginal Sea Geology,South China Sea Institute of Oceanology, Chinese Academy Sciences,Guangzhou510301,China;CNOOC(China)Co.,Ltd.Shenzhen branch,Shenzhen518054,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院边缘海与大洋地质重点实验室中国科学院南海海洋研究所,广州510301 [2]中海石油(中国)有限公司深圳分公司,深圳518054 [3]中国科学院大学,北京100049

出　　处：《物探化探计算技术》2019年第1期12-17,共6页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家科技重大专项(2016ZX05024-004)

摘　　要：针对老三维地震资料品质难以解决珠江口盆地惠州地区中浅层岩性复合圈闭的圈闭有效性、圈闭规模和多套砂体叠置的问题,开展针对目标的地震勘探采集参数优化设计以提升二次三维地震采集资料品质。首次提出针对岩性勘探应采用垂直于砂体展布方向采集的方案。首次在南海东部珠江口盆地惠州凹陷获得针对岩性勘探的"高分辨率和高密度"采集结果。通过该地区成功应用的实例证明方法的合理性,对后续针对岩性圈闭的采集参数设计具有非常重要的参考价值。It is difficult to solve the problem of the lithological trap effectiveness,the scale of the lithological trap and the superimposition of multiple sets of sand bodies in the Hui zhou area of the Pearl river mouth basin(PRMB).Therefore,the seismic exploring design for the target was proposed to improve the quality of the twice 3D seismic data acquisition.It is the first time that a design for lithological exploration should be collected vertically to the direction of sand body distribution.And it is the first time in the Huizhou sag of the PRMB in the eastern south China sea to obtain the result of"the high resolution and the high density"acquisition for lithological exploration.An example of successful application in the area shows that the forward model illumination exploring design for the lithological combination trap target is a good method,and it has very important reference value for subsequent design of acquisition parameters for lithological traps.

关 键 词：珠江口盆地 惠州凹陷 岩性复合圈闭 地震勘探采集设计 正演照明分析 

分 类 号：P631.4[天文地球—地质矿产勘探]