洪湖及周缘地区重磁场特征与地质构造研究  

Characteristics of Gravity and Magnetic Field and the Geological Structure Research in Honghu and Its Surrounding Areas

作　　者：周芝旭[1] 龙国富[1] 龚晨[1] 姚本全[1] 

机构地区：[1]中国石化石油工程地球物理有限公司江汉分公司,湖北潜江433199

出　　处：《地质科技情报》2014年第3期185-190,共6页Geological Science and Technology Information

基　　金：中石化江汉分公司科研项目(JKW0109002)

摘　　要：江汉平原大部分地区于1986—1994年完成了1∶5万的重磁力勘探工作。资料处理受当时技术条件的限制,只进行了简单的分块常规处理,没有和地震、地质资料有效结合,也缺乏针对性,取得的地质效果不明显。通过对以往重磁力资料进行拼接、连片,采用了一套快速、高效的重磁与地震结合的处理解释流程。经过对平面、剖面重磁力资料的处理,再结合最新的地震勘探成果进行综合解释,重新对洪湖及周缘地区划分了构造单元,对断层进行了综合解释,反演了主要密度界面。指出了洪湖区凹陷比其西面的柳关凹陷埋藏深,洪湖湖区应为下一步勘探重点,为进一步地震勘探工作指明了方向。The scale of 1 ; 5 million of gravity ＆ magnetic prospecting works were completed in the Jianghan Plain from 1986 to 1994. Because of the restriction of technology at that time, the gravity ＆ magnetic data only was processed simply and wasn＇t combined with seismic and geological data, so the geological effect was not obvious. This research work includes the gravity ＆ magnetic data splicing and connection, using a set of rapid and high efficiency gravity, magnetic and seismic processing and interpretation workflow. After finishing the processing of gravity ＆ magnetic area and profile data, combined with the results of the latest seismic exploration comprehensive interpretation, we re-divide the structure units of Honghu and its adjacent areas, and re-interpreting the faults comprehensively, by re-inversing the main density interfaces. Through this research, pointing out that Honghu Depression is deeper than the west of Niuguan depression, Honghu lake area is the exploration target in the near future, indicating a new direction of seismic exploration.

关 键 词：洪湖地区 油气勘探 重磁 综合研究 

分 类 号：P631[天文地球—地质矿产勘探]