珠江口盆地新近系地层岩性圈闭形成条件及发育规律分析

杜家元; 陈维涛; 张昌民

doi:10.11781/sysydz201405555

珠江口盆地新近系地层岩性圈闭形成条件及发育规律分析

doi: 10.11781/sysydz201405555

1.
长江大学 “油气资源与勘探技术”教育部重点实验室地球科学学院, 湖北荆州 434023
2. 中海石油(中国)有限公司深圳分公司, 广州 510240

基金项目: 国家科技重大专项“近海隐蔽油气藏勘探技术”(2011ZX05023-002)资助。

详细信息

作者简介:
杜家元(1964-)，男，教授级高工，从事石油地质勘探工作。E-mail：dujy@cnooc.com.cn。

通讯作者:
陈维涛(1983-)，男，工程师，从事石油地质勘探工作。E-mail：chenwt2@cnooc.com.cn

中图分类号: TE122.3⁺22
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出版历程
- 收稿日期: 2013-04-15
- 修回日期: 2014-08-01
- 刊出日期: 2014-09-28

Formation conditions and development features of Neogene stratigraphic-lithologic traps in Pearl River Mouth Basin

1.
Key Laboratory of Oil and Gas Resources and Exploration, Yangtze University, Jingzhou, Hubei 434023, China
2. Shenzhen Branch of CNOOC Ltd., Guangzhou, Guangdong 510240, China

摘要

摘要: 伴随勘探程度的提高，地层岩性圈闭已经成为珠江口盆地油气勘探的重要新领域。为此，对珠江口盆地新近系这一主力含油层段进行了地层岩性圈闭形成条件和发育规律的分析。认为盆地新近纪以来多期次的海平面升降旋回，多种沉积体系的共同发育，2种类型坡折及其对应的低位体，以及2次构造运动为地层岩性圈闭的发育创造了十分有利的条件。在上述条件的综合作用下，地层岩性圈闭的发育呈现出陆架区、坡折区各具特色、层序界面附近层段最为有利、油气运移通道是成藏主控因素等规律性特征。
- 地层岩性圈闭 /
- 形成条件 /
- 发育规律 /
- 新近系 /
- 珠江口盆地
Abstract: As exploration degree increases, stratigraphic-lithologic traps have become an important new field for oil and gas exploration in the Pearl River Mouth Basin. The formation conditions and development features of Neogene stratigraphic-lithologic traps were systematically investigated in this study. The basin has experienced several stages of sea level fluctuations ever since Neogene, resulting in the coexistence of multiple sedimentary systems. Two types of shelf edges and the corresponding low stand systems tracts as well as two significant tectonic movements provided favorable conditions for the development of stratigraphic-lithologic traps, which showed obviously different features in the continental shelf region and the shelf margin region. The intervals near to sequence boundary seem to have the most favorable potential. Oil and gas migration pathways play important roles in controlling final hydrocarbon accumulation.
- stratigraphic-lithologic trap /
- formation condition /
- development feature /
- Neogene /
- Pearl River Mouth Basin

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