摘要
在勘探地球物理中,不同的地球物理数据通常反映了地下岩石不同的地球物理属性,这些观测数据能够相互补充,从而得到地下构造更可靠的成像结果。电磁勘探和地震勘探是两种物理机制不同的地球物理勘探方法,在油气勘探开发中,仅仅利用地震数据会存在多解性,电磁勘探作为地震勘探的有效辅助手段,二者联合可更好地为油气勘探开发决策服务。电磁和地震联合反演作为地震和电磁联合勘探的重要定量解释方法,能够降低单一数据反演的多解性,提高电磁和地震资料解释的可靠性。首先概述电磁和地震联合反演的分类,然后评述电磁和地震联合反演的研究现状,最后分析电磁和地震联合反演面临的机遇,并指出其未来的研究方向。
Different geophysical data reflect rock properties from different aspects,and joint utilization of such complemental information may better image subsurface geology.Electromagnetic prospecting and seismic prospecting are two ways of geophysical exploration with different mechanisms.Seismic prediction suffers from the issue of non-uniqueness,and electromagnetic prospecting may render useful information which is absent in seismic data.Thus,joint utilization of electromagnetic and seismic data can provide more credible support for exploration and development decision making.Joint electromagnetic-seismic inversion,as a method of quantitative interpretation,may mitigate the nonuniqueness of single-data inversion and improve the credibility of geophysical interpretation.We give an overview of the classification,progress,and opportunities of joint inversion in China and around the world,as well as its future development.
作者
彭国民
刘展
PENG Guomin;LIU Zhan(School of Geosciences,China University of Petroleum(East China),Qingdao,Shandong 266580,China)
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2020年第2期465-474,I0008,共11页
Oil Geophysical Prospecting
基金
国家“863”计划项目“深水可控源电磁勘探系统开发”(2012AA09A201)
国家重点研发计划项目“地下及井中地球物理勘探技术与装备”(2018YFC0603300)联合资助。
关键词
联合反演
电磁
地震
岩石物理
交叉梯度
joint inversion
electromagnetic
seismic
rock physics
cross gradient
