摘要
本文以断陷湖盆层序地层划分为基础,采用岩心观察、沉积体系分析等方法,重点研究了东营凹陷牛庄洼陷王58地区沙四段上亚段浊积岩的沉积特征、展布形态,并应用湖平面变化结合构造演化分析了浊积扇的发育特点和成因机制。研究结果表明,牛庄洼陷王58地区沙四段上亚段3砂组发育单一坡折远岸浊积扇,物源主要为来自洼陷东南部的扇三角洲,湖平面变化结合构造形态以及物源共同控制了浊积扇的发育和展布特征。
Based on the stratigraphic classification of the fault trough lake basin bed succession, the sedimentary features and spatial distribution shape of the turbidite of upper sub-segment of Es4, Wang 58 area, Niuzhuang low-lying area in Dongying sag were researched by observing cores and analyzing sedimentary system and so on. The development feature and genesis mechanism of the turbidite were analyzed by lake level change combining with the structural evolution. The resut shows that the 3 sand group of upper subsegment of Es4, Wang 58 area, Niuzhuang low-lying area has developed a single break-far-beach turbidite fan. The matter source was the fan delta at the southeast of the low-lying area. The development and the distribution feature of the turbidite fan were controlled by lake level change, structural attitude and matter source.
出处
《油气地球物理》
2009年第3期19-23,共5页
Petroleum Geophysics
基金
胜利油田分公司科技攻关项目"济阳断陷湖盆浊积岩成因演化与勘探"(YKK0603)
关键词
浊积岩
沉积特征
成因机制
沙四段上亚段
牛庄洼陷东部
turbidite, sedimentary feature, genesis mechanism, upper sub-segment of Es4 and southeast of the Niuzhuang low-lying area
