地质与资源2025，Vol.34Issue(3)：313-322,10.DOI:10.13686/j.cnki.dzyzy.2025.03.005
松辽盆地陆家堡地区深部地层展布特征综合地球物理研究
Comprehensive geophysical study on the distribution characteristics of deep strata in Lujiapu area,Songliao Basin
摘要
Abstract
For shallow exploration in basins,seismic detection technology exhibits advantages of high resolution and strong vertical stratification capability.However,when dealing with deep sag regions,due to the shielding effect of formations like volcanic rocks,which makes seismic signals weaken and imaging quality deteriorated,the interpretation for the development characteristics of deep strata becomes extremely difficult.Magnetotelluric(MT)sounding is unaffected by volcanic formations and is sensitive to low-resistivity information such as mudstones in deep subsurface.Therefore,it complements seismic technology in terms of deep information,enabling acquisition of details about basement framework and undulation of electrical marker beds.Gravity and magnetic anomalies,as passive sources,are mainly influenced by volume effect,without shielding.As long as significant density contrasts or interfaces exist,gravity or magnetic anomalies will be reflected at the surface.These methods provide a powerful mean for the intergraded study of density,lithology,distribution of intrusive bodies,etc.Given the complex geological background of deep Yixian Formation strata in Lujiapu area and its surroundings in southern Songliao Basin,this study leverages the advantages of multiple geophysical methods including gravity,magnetic,electric,and seismic(GMES)techniques to comprehensively explores the distribution characteristics of deep strata,lithology,and structures in the area,which provides references for subsequent oil-gas prospecting of deep reservoirs.关键词
松辽盆地/陆家堡凹陷/深部地层/综合物探/重磁电震Key words
Songliao Basin/Lujiapu Sag/deep stratum/integrated geophysical prospecting/gravity-magnetic-electric-seismic(GMES)techniques分类
天文与地球科学引用本文复制引用
冉波,李皓,张甲明,杨曦,孙爽晨,张健,尚竽良..松辽盆地陆家堡地区深部地层展布特征综合地球物理研究[J].地质与资源,2025,34(3):313-322,10.基金项目
中国石油天然气集团公司项目"开鲁地区义县组及深层勘探目标优选研究"(2022KJZX-05-02) （2022KJZX-05-02）
中国地质调查局项目"东部新区新层系油气地质调查与评价"(DD20240045)资助. （DD20240045）
