摘要
松辽盆地东南缘深层沉积相研究程度较浅,以西丁家地区营城组为例,利用岩心观察描述结果,结合测井、地震资料,以及区域构造演化和沉积相分析结果,研究松辽盆地东南缘深层地层沉积相.结果表明:营城组(K1y)主要发育扇三角洲、辫状河三角洲、湖底扇和湖泊4种相类型,其中辫状河三角洲相和湖泊相最为发育;西丁家地区营城组主要表现为"广盆浅水"沉积特征,西南陡坡带发育扇三角洲沉积体系,北部斜坡带发育辫状河三角洲沉积体系,垂向上地层叠加样式表现为由进积向加积演变.该研究结论对西丁家地区深层地层下一步勘探开发及资源评价具有指导意义.
The sedimentary facies research level of the deep level is plain in Southeastern margin of Songliao Basin taking Yingcheng formation of Xidingjia area as an example,and make use of core observation results,combined with logging,seismic data,as well as regional tectonic evolution and sedimentary facies analysis to research sedimentary facies.The results showed that Yingcheng formation mainly developed fan delta,braided river delta,lake and lake facies types,and braided river delta and lacustrine facies are most developed.Yingcheng formation of Xidingjia area mainly shows 'broad shallow basin' as sedimentary characteristics.Southwest steep slope developed fan delta depositional system,the northern slope developed braided river delta system,and the performance of the vertical stacking pattern is from progradation to accretion.The conclusion of the study has important guiding significance for the exploration and resource evaluation of the next step.
出处
《东北石油大学学报》
CAS
北大核心
2013年第3期32-39,126,共8页
Journal of Northeast Petroleum University
基金
国家科技重大专项(ZX05009)
湖北省教育厅基金项目(Q20121210)
中国地质大学(武汉)重点实验室开放基金项目(TPR-2012-23)
关键词
西丁家地区
早白垩世
营城组
沉积相
松辽盆地
十屋断陷
Xidingjia area
early Cretaceous
Yingcheng formation
sedimentary facies
Songliao basin
Shiwu depression
