东明凹陷桥白地区地震地层综合解释

COMPREHENSIVE EXPLANATION OF SEISMIC STRATIGRAPHY OF THE QIAOBAI AREA IN THE DONGMIN DEPRESSION

楼士毅 陈雪影 雷致富

Lou Shiyi Chen Xueying Lei Zhifu

地质矿产部华北石油地质局

Petroleum Geology Bureau of North-China, Ministry of Geology and Minerals

东明凹陷位于华北盆地的中部,是以早第三纪沉积为主的断陷,现已建成中原油田,为我国近期加速油气资源勘探开发的重点地区之一。近年来以构造圈闭为主寻找油气藏的难度相应变大,为了不断扩大油气成果,在继续寻找各种构造油气藏的同时,需要尽快模索一套以岩性圈闭为主的各类油气藏的普查勘探新方法。

On the basis of seismic informations obtained from analogue magnetic tape,this article gives comprehensive explanation of the various seismic information and the results of drilling and logging in the Qiaobai district in Dong-min Depression.Examples are cited to demonstrate the foundation and methodology of explaining seismic facies analysis,velocity analysis and regional sedimentary facies analysis.New basis is provided for deepening the explanation of the seismic information obtained from analogue magnetic tape,for dividing the lower Tertiary sedimentary facies of this area and for predicting its lithofacies as well.The lithofacies zones favourable for oil and gas accumulation,local structures and the possible sites for planning drill are indicated in the article.

https://doi.org/10.11781/sysydz198402124