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[1]何 敏 朱伟林 吴 哲 钟广法 任建业 刘丽华 王文勇.珠江口盆地新构造运动特征与油气成藏[J].中国海上油气,2019,31(05):9-20.[doi:10.11935/j.issn.1673-1506.2019.05.002]
　HE Min ZHU Weilin WU Zhe ZHONG Guangfa REN Jianye LIU Lihua WANG Wenyong.Neotectonic movement characteristics and hydrocarbon accumulation of the Pearl River Mouth basin[J].China Offshore Oil and Gas,2019,31(05):9-20.[doi:10.11935/j.issn.1673-1506.2019.05.002]
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珠江口盆地新构造运动特征与油气成藏()

《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第31卷
期数:
2019年05期
页码:
9-20
栏目:
油气勘探
出版日期:
2019-10-10

文章信息/Info

Title:
Neotectonic movement characteristics and hydrocarbon accumulation of the Pearl River Mouth basin
文章编号:
1673-1506(2019)05-0009-12
作者:
何 敏1 朱伟林2 吴 哲1 钟广法2 任建业3 刘丽华1 王文勇1
(1. 中海石油(中国)有限公司深圳分公司 广东深圳 518054; 2. 同济大学海洋资源研究中心 上海 200092; 3. 中国地质大学(武汉)资源学院 湖北武汉 430074)
Author(s):
HE Min1 ZHU Weilin2 WU Zhe1 ZHONG Guangfa2 REN Jianye3 LIU Lihua1 WANG Wenyong1
(1. CNOOC China Limited, Shenzhen Branch, Shenzhen, Guangdong 518054, China; 2. Research Center on Marine Resources, Tongji University, Shanghai 200092, China; 3. Faculty of Earth Resourus, China University of Geosciences, Wuhan, Hubei 430074, China)
关键词:
珠江口盆地;  新构造运动;  变形特征;  成因机制;  油气成藏
Keywords:
Pearl River Mouth basin;  neotectonic movement;  deformation characteristics;  genetic mechanisms;  hydrocarbon accumulation
分类号:
TE121.1
DOI:
10.11935/j.issn.1673-1506.2019.05.002
文献标志码:
A
摘要:
系统描述了珠江口盆地新近纪断裂活动、主要不整合面、差异构造沉降、古地貌与沉积响应等变形特征,结合油气分布特征和成藏特点,明确定义新构造运动为南海扩张停止之后13.8 Ma以来发生的构造活动,共经历了4个演化阶段,其中上新世(5.33 Ma)是构造活动最强烈的时期。研究发现,珠江口盆地新构造运动以东沙地区的再次隆升为最明显特征,伴随早期断裂继承性发育与坳陷区异常快速沉降,并影响海底古地貌和沉积充填; 新构造运动不仅影响了油气成藏体系的各地质要素,而且控制了油气分布的宏观格局,导致珠一坳陷新近系油气成藏时间具有从东往西逐渐变晚的特点; 新构造运动最强烈的阶段是大多数地区油气成藏的关键时刻,番禺4洼、恩平凹陷、白云凹陷东北部等新构造运动活跃区为浅层油气勘探最有利地区,而西江主洼、陆丰凹陷、白云凹陷西南部等新构造运动较弱区则是古近系深层油气勘探最有利地区。
Abstract:
This paper systematically describes the deformation characteristics of the Neogene Pearl River Mouth basin, such as fault activity, main unconformity surface, differential tectonic subsidence, paleogeomorphology and sedimentary response, and clearly defined the neotectonic movement in the Pearl River Mouth basin as the tectonic activities occurred since the South China Sea ceased expansion(13.8 Ma)by considering the characteristics of hydrocarbon distribution and accumulation. It involves four evolutionary stages; among them, the Pliocene(5.33 Ma)is the most intense period of tectonic activity. The study found that the neotectonic movement in the Pearl River Mouth basin has the most obvious feature of the re-uplifting of Dongsha area, accompanied by the inheritance development of early fault and the abnormal rapid settlement of the depression, which affects the paleo-geomorphology and sedimentary filling of the seabed. The neotectonic movement not only affected all the geological elements of the oil and gas accumulation system, but also controlled the macroscopic pattern of oil and gas distribution, leading to the east-to-west younger characteristics of hydrocarbon accumulation in the Zhu1 depression. The most intense stage of the neotectonic movement, is the key moment for oil and gas accumulation in most of areas. The active neotectonic movement areas, such as the Panyu 4 sub-sag, Enping sag, and the northeastern part of the Baiyun sag, are the most favorable areas for shallow oil and gas exploration; the weak neotectonic movement areas, such as the Xijiang main sag, the Lufeng sag, and the southwestern part of the Baiyun sag, are the most favorable areas for the Paleogene deep oil and gas exploration.

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备注/Memo

备注/Memo:
*“十三五”国家重大科技专项“珠江口盆地陆缘深水区油气地质及勘探关键技术(编号:2016ZX05026-003)”部分研究成果。 第一作者简介: 何敏,男,教授级高级工程师,1997年获长春科技大学硕士学位,2018年获同济大学博士学位,主要从事石油地质和地球物理研究。地址:深圳市南山区后海滨路3168号中海油大厦A座(邮编:518054)。 E-mail:hemin1@cnooc.com.cn。
更新日期/Last Update: 2019-10-01