天然气地质学

缅甸Shwebo盆地油气地质特征及勘探潜力

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  • 1.中国地质大学(北京)能源学院,北京 100083;2.中海油研究总院,北京 100027
谢楠(1980-),女,四川富顺人,工程师,博士研究生,主要从事沉积学和储层地质学研究.E-mail:xienan@cnooc.com.cn.

收稿日期: 2013-07-16

  修回日期: 2013-01-18

  网络出版日期: 2014-04-10

基金资助

国家“十一五”科技重大专项课题(编号:2008ZX05030-02);中海石油(中国)有限公司科技攻关项目(编号:2012-HW-03-1)资助.

Petroleum Geology and Exploration Potential of Shwebo Basin,Myanmar

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  • 1.School of Energy Resources,China University of Geosciences (Beijing),Beijing 100083,China;
    2.CNOOC Research Institute,Beijing 100027,China

Received date: 2013-07-16

  Revised date: 2013-01-18

  Online published: 2014-04-10

摘要

Shwebo盆地是在中生代边缘海沉积盆地基础上演化而成的新生代弧后盆地,经历了边缘海盆地—弧后盆地2个主要演化阶段。盆地的主要烃源岩和储盖组合均发育于新生代弧后阶段。始新统烃源岩的排烃高峰期是渐新世—中新世,以生气为主。始新统自生自储组合和渐新统下生上储组合是该盆地最重要的成藏组合方式。盆地西部岛弧断裂带发育一系列的断背斜圈闭,盆地东部发育一系列的正花状构造和断背斜圈闭,沿着Sagaing走滑断层呈带状分布。Shwebo盆地中西部的Shwebo-1号构造和东部的斜坡区礁构造为最具潜力的勘探区域。

本文引用格式

谢楠,赵汝敏 . 缅甸Shwebo盆地油气地质特征及勘探潜力[J]. 天然气地球科学, 2014 , 25(4) : 558 -564 . DOI: 10.11764/j.issn.1672-1926.2014.04.558

Abstract

Shwebo Basin is the back-arc basin developed and formed on the basis of Paleozoic marginal sea basin.The tectonic evolution of Shwebo Basin can be described in terms of an early stage of marginal sea basin and a later stage of back-arc basin.The primary source rocks,reservoirs and seals had formed in the second stage.Eocene source rocks generated a mass of hydrocarbon characterized mainly by gas from Oligocene to Miocene.The assemblage of self-generated and self-preserved reservoir was the most important type in the Eocene Formation,and the Oligocene reservoir can also accumulated hydrocarbon from the Eocene source through faults.There are thrust faulted traps in western basin and flower structure traps and fault anticline traps along the Sagaing strike fault in eastern basin.There are two potential exploration targets,Shwebo-1 faulted anticline traps in the Eocene and Oligocene formation in western basin,and Reef anticline traps in the Eocene and Oligocene formation in eastern basin.

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