摘要
综合运用高精度三维地震资料和钻井资料,对高邮凹陷南部断阶带古新统断裂体系进行了系统解析。主边界断层真1和吴1断层均呈现出波状弯曲特征,而次级断层展布则具有分段特征。西段以NEE向平行断层为主,过渡段主要发育弧形断层,而东段则以近EW向斜列式断层为特征。结合区域构造背景分析和物理模拟实验对比研究,阐明了不同类型断裂构造的成因机制。认为真1和吴1断层均是基底断层复活的产物,而不同区段拉伸性质不尽相同则导致了次级断裂的分段特征。
This paper presents a systematic analysis of the Paleocene fault system in the southern fault terrace zone of Gaoyou Sag,using high precision 3D seismic data and drilling data. The primary boundary faults( Zhen 1 fault and Wu 1 fault) are featured by wavy bending,whereas the secondary faults are featured by sectional distribution. NEE parallel faults predominate the western section,arcuate faults are mainly developed in the transitional section,while near EW echelon faults are distributed in the eastern section.Through analysis of regional tectonic setting and the correlation by physical modeling experiment,this paper clarifies the genetic mechanisms of different types of faulted structures. It is believed that both Zhen 1 fault and Wu 1 fault are the products of basement fault revival,while the somewhat different stretchability in different sections results in the sectional features of secondary faults.
出处
《特种油气藏》
CAS
CSCD
北大核心
2014年第6期28-32,142,共5页
Special Oil & Gas Reservoirs
基金
中石化博士后项目"高邮凹陷南部断阶带构造特征与形成机制研究"(JD11001)
江苏油田科技重大专项"高邮凹陷南部断裂带阜宁-泰州组滚动勘探开发研究"(JS10046)
关键词
断裂构造
基底断层
斜向拉伸
古新统
南部断阶带
高邮凹陷
faulted structure
basement fault
oblique extension
Paleocene
southern fault terrace zone
Gaoyou Sag
