摘要
车排子地区新近系沙湾组(N1s)油气藏埋深小、勘探效益高,以往对成藏规律认识不清,在一定程度上制约了勘探、开发进程。本文从构造、沉积以及断裂等方面对沙湾组(N1s)油气成藏控制因素及富集规律进行了探讨,得出以下认识:①在单斜构造背景下,低幅度鼻状构造(带)明显地控制油气聚集与分布;②滨浅湖相的滩坝砂体是浅层油气成藏最为有利的储集体,沙三段为沙湾组(N1s)最重要的勘探目的层;③正断层为沟通油气与储层起到了重要作用,正断层的上升盘更容易形成有效封堵而成藏。
Neogene Shawan Formation(N1s) reservoir in Chepaizi area is characterized by shallow buried depth and high exploration effect,but the rule of reservoir genesis has been unknown until now,which places restrictions on process of exploration and development to a certain degree.The paper discussed the controlling factor and concentration rule of N1s reservoir genesis from structure,sedimentation and fault and resulted in following knowledge: ①low-amplitude nose-like structure dominantly controls the concentrati...
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2008年第S1期50-53,195+7,共6页
Oil Geophysical Prospecting
关键词
新近系
成藏控制因素
鼻状构造
滩坝砂体
断层封堵性
Neogene
controlling factor of reservoir genesis
nose-like structure
beach bar sand body
seal-off of fault
