2016年12月第35卷第6期
大庆石油地质与开发
Petroleum Geology and Oilfield Development in Daqing
DOI:10.3969/J.ISSN.1000-3754.2016.06.002
Dee.，2016 Vol. 35 No. 6
富林洼陷中生界火山岩岩性岩相及不整合特征
梁钊’周瑶琪刘晨光’朱之锦2张德彬2
（1.中国石油大学地球科学与技术学院，山东青岛266580；2.中国石化胜利浦田股份有限公司摄岛采油厂，山东东营257231）摘要：为了研究潜海湾盆地沾化凹陷富林洼陷中生界火山岩，利用岩心观察、薄片鉴定、测井曲线分析等方法，对研究区的火山岩岩性岩相、中生界顶面不整合结构及其测并响应进行了研究。研究结果表明：富林洼陷下白垩统蒙阴组一西洼组主要发育安山岩、安山质火山碎屑岩以及少量安山盼岩：火山岩相可分为鲨流相、爆发相、火山一沉积相、火山通道相和次火山岩相，可识别出溢流相、爆发相和火山一沉积相；火山岩岩相组合可分为澄流相→爆发相、溢流相→+火山一沉积相、爆发相→火山一沉积相、溢流相→爆发相→火山一沉积相4种类型；中生界不整合由下至上表现为规律的岩性变化，对应的测并响应特征明显。基于测井响应，研究区及邻区未取
心井可利用测井曲线识别火山岩岩性岩相并确定中生界不整合的深度。关键，词：火山岩；岩性君相；不整合特征；中生界；富林注陷
文章编号：1000-3754（2016）06-0006-09
中图分类号：TE122.2*22
文献标识码：A
LITHOLOGIES-LITHOFACIESESOFMESOZOICVOLCANICROCKS
ANDUNCONFORMITYCHARACTERISTICSFORFULINSAG
LIANG Zhao', ZHOU Yaoqi', LIU Chenguang', ZHU Zhijin’, ZHANG Debin?(1. School of Geosciences, China University of Petroleum, Qingdao 266580, China;
2. Gudao Oil Production Plant, Sinopec Shengli Oifield Company, Dongying 257231, China)
Abstract : In order to study Mesozoic volcanic rocks in Fulin Low of Zhanhua Sag in Bohai Bay Basin, by means of the following methods such as core observation, thin section analysis, log analysis and so on, the lithologies and the lithofacieses of the volcanic rocks, structures and logging responses of Mesozoic Top unconfomity in the study area were researched. The achievements show the andesite, andesitic volcaniclastic rocks and small amount of andesitic porphyrite volcanic rocks are mainly developed in Lower Cretaceous Mengyin-Xiwa Formation of the low; the vol-canic lithofacies can be divided into effusive facies, explosive facies, volcanic-sedimentary facies, volcanic conduit facies and sub-volcanic lithofacies, and moreover the former three lithofacieses can be identified; four types of the volcanic lithofacies combinations can be recognized: effusive facies-→explosive facies, effusive facies-→volcanic-sedimentary facies, explosive facies -+volcanic-sedimentary facies and effusive facies→explosive facies→volcanic-sedimentary facies; the regular lithologic changes are shown in Mesozoic unconformity from top to bottom, the corre sponding log response characteristics are pretty obvious. On the basis of the above responses, the lithologies and the
改回日期：2016-10-23
收稿日期：2016-03-16
基金项目：国家自然科学基金项目“东特提斯洋二叠纪硅质沉积事件研究”（41272123）和中石化胜利油田强岛采油厂
，
作者简介：案钊，男，1986年生，在读博士研究生，主要从事地球化学和火山岩油气形成与分布方面的研究。
E-mail :562986462@ qq. com
万方数据