2016年6月第35卷第3期
大庆石油地质与开发
Petroleum Geology and Oilfield Development in Daqing
DOI: 10. 3969/J. ISSN. 1000-3754. 2016. 03. 006
June，2016 Vol. 35 No. 3
依一舒地堑方正断陷成藏主控因素及有利区带
迟丽薇
（中国地质大学资源学院，湖北武汉430074）
摘要：依一舒地堑方正断陷是大庆油田勘探有利的接替领域。在前人油气成藏条件研究的基础上，对方正断陷成藏的主控因素进行了综合分析。研究认为：油气成藏存在3个主控因素，一是烃源岩的分布范围及成烃演化控制断陷油气分布，二是良好储集物性及泥岩盖层是成崴的关键，三是断层与生、储、盖层的空间匹配控制油气成载：预测断陷内存在3个有利预探区带，应以寻找生油凹陷周边的断块油藏为主，凹陷两侧构造邻近生油凹槽，是下步勘探重点地带。
关键调：方正断陷；成藏主控因索；烃源岩分布；断层空间匹配关系；油气运聚
中图分类号：TE122.3
文献标识码：A
文章编号：1000-3754（2016）03-0031-05
MASTERCONTROLLINGFACTORANALYSESOFTHEHYDROCARBON
ACCUMULATIONANDFAVORABLEBELTPREDICTIONFOR
FANGZHENGFAULTDEPRESSIONINYI-SHUGRABEN
CHI Liwei
(Faculty of theEnergy Resources，China University of Geosciences,Wuhan430074,China)
Abstract: Fangzheng Fault Depression in Yi-Shu Graben is the important exploration replacing field of Daqing Oil-field. On the basis of the previous studies on the hydrocarbon accumulation conditions, the comprehensive analyses on the master controlling factors of the hydrocarbon accumulation are conducted. The achievements show that there are three main controlling factors in this aspect: the petroleum distribution of the depression is controlled by the hy-drocarbon scope of the source rocks and hydrocarbon-generating evolution; the key on the hydrocarbon accumula-tion is the much better reservoir physical properties and mudstone caprock ; and moreover the enrichment is domina-ted by the spatial matching between the faults and the source rocks and reservoirs and cap formation, Furthermore three favorable exploring belts are predicted for the fault depression, the fault-block oil reservoirs around the oil. generating sags should be focused and the oil generating grooves and lows nearby the both sides of the sag structures should be considered to be the important exploration areas in the future.
Key words: Fangzheng Fault Depression; master/main controlling factor of the hydrocarbon accumulation; hydro-carbon source rock distribution; fault spatial matched relationship; hydrocarbon migration and entrapment/ accu-
收稿日期：2015-11-23
改回日期：2016-03-30
基金项目：中国石油天然气股份公司重大科技专项“大庆探区非常规油气勘探开发关键技术研究与现场试验”（2012E-
2603-01)。
作者简介：迟丽裁，女，1991年生，在读硕士，主要从事石油地质方面研究工作。
E-mail;38085920@qq.com
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