[1]马英俊,李储华,李 维.高邮凹陷垛一段沉积演化特征[J].复杂油气藏,2017,(02):1.[doi:10.16181/j.cnki.fzyqc.2017.02.001]
　Ma Yingjun,Li Chuhua,Li Wei.Characteristics of sedimentary evolution of E2s1 in Gaoyou Sag[J].Complex Hydrocarbon Reservoirs,2017,(02):1.[doi:10.16181/j.cnki.fzyqc.2017.02.001]
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高邮凹陷垛一段沉积演化特征
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
期数:
2017年02期
页码:
1
栏目:
油气勘探
出版日期:
2017-06-25

文章信息/Info

Title:
Characteristics of sedimentary evolution of E2s1 in Gaoyou Sag
作者:
马英俊; 李储华; 李 维
中国石化江苏油田分公司勘探开发研究院,江苏 扬州 225012
Author(s):
Ma Yingjun; Li Chuhua; Li Wei
Exploration & Development Research Institute of Jiangsu Oilfield Company,SINOPEC,Yangzhou 225009,China
关键词:
物源体系 岩相类型 沉积演化 垛一段 高邮凹陷
Keywords:
source system;  the types of sedimentary facies;  sedimentary evolution;  1st member of Sanduo Formation;  Gaoyou Sag
分类号:
TE122
DOI:
10.16181/j.cnki.fzyqc.2017.02.001
文献标志码:
A
摘要:
采用岩矿特征、重矿特征、砂地比变化、岩心观察描述、沉积相标志分析等方法,以砂层组为单元开展高邮凹陷垛一段物源体系、沉积相类型和沉积演化特征研究。结果表明,垛一段沉积期物源供给充分,具有多物源、多沉积体系发育的特征,物源主要来自北、北东方向; 平面上,发育浅水辫状河三角洲、扇三角洲、曲流河等相类型,以及辫状河三角洲前缘分支河道、河口坝,扇三角洲平原河道、前缘分支河道,曲流河河床、泛滥平原等亚相和微相类型; 纵向上,早期为湖泊-三角洲沉积体系,晚期逐渐演化为河流沉积体系,具有粗-细-较粗的沉积旋回演化; 垛一段中部泥质岩类沉积较发育,可与下伏储层形成相对稳定的储盖组合; 平面上深凹南部和西南部具有隐蔽圈闭形成的有利条件。
Abstract:
Based on the rock characteristics,the characteristics of heavy mineral,the change in ratio between sandstone and stratum thickness,the observation and description of core,and the analysis of sedimentary facies marks,it was carried out studies on sedimentary source system,types of sedimentary facies and sedimentary evolution of E2s1(first member of Sanduo Formation)by sandbodies as the unit.The results showed that there are sufficient sediment sources,multi sources and multidepositional systems developing at the depositional stage of E2s1,and the sediment sources comes mainly from the north and the north-east direction.In the plane,it can be recognized the facies types of shallow braided river delta,fan delta,and meandering river,and the subfacies and microfacies types of branch channel and debouch bar of braided river delta front,fan delta plain and front river branch channel,meandering river,and flood plain.In vertical direction,the lake-delta sedimentary system was developed at early period and later changed to the fluvial flood sedimentary system which shows the character of coarse-fine-coarse depositional cycle.There is a set of shale in the middle of E2s1 which can comprise stable reservoir-caprock assemblage.In plane,south and southwest area of deep depression has the prospect condition of forming subtle trap.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-03-11; 改回日期:2017-04-10。
作者简介:马英俊(1964—),女,工程师,现从事沉积相、储层研究。E-mail:mayj.jsyt@sinopec.com。
更新日期/Last Update: 2017-06-25