天然气地质学

渤海海域北部JX1-1反转构造与油气成藏关系

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  • 1.中国石油大学盆地与油藏研究中心,北京 102249; 2.中国石油大学油气资源与探测国家重点实验室,北京 102249; 3.中海石油(中国)有限公司天津分公司,天津 300452
强昆生(1980-),男,陕西西安人,博士研究生,主要从事油气成藏机理和分布规律方面的工作. E-mail:qks80@163.com.

收稿日期: 2012-07-23

  修回日期: 2012-11-22

  网络出版日期: 2013-04-10

基金资助

国家自然科学基金项目(编号:41072102);中国海洋石油总公司重点科技攻关项目(编号:S10TJTMM016)联合资助.

Relationship between JX1-1 Inversion Tectonics and Hydrocarbon Accumulation of the Northern Offshore Bohai Bay Basin

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  • 1.Basin and Reservoir Research Center, China University of Petroleum, Beijing 102249, China;  2.State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum,  Beijing 102249, China;  3.CNOOC (China) Ltd.,Tianjin 300452, China

Received date: 2012-07-23

  Revised date: 2012-11-22

  Online published: 2013-04-10

摘要

以高分辨率三维地震资料为基础,结合相干技术等先进地震资料处理和解释技术,对研究区反转构造变形特征进行了探讨和研究,并分析了反转带与油气聚集的关系。JX1-1地区断裂发育,主要为NE走向,平面上呈雁列式排列。在古近系沙河街组沉积末期,JX1-1地区在郯庐断裂走滑应力作用下发生了反转,形成了良好的背斜构造背景,在古近系东营组沉积时期,持续隆升,到了古近纪末期和新近纪初期,基本定型。JX1-1反转带的发育对油气聚集成藏的影响主要表现为:有利于构造圈闭的形成;对沉积体系的展布形成了一定的影响;形成的断裂有助于油气的运移;对储层的物性起到积极的改善作用;反转强度过大对新近系浅层油气聚集不利;渤海海域郯庐断裂带过渡、拐弯部位的反转构造带古近系是有利的油气勘探目标区带。

本文引用格式

强昆生,吕修祥,周心怀,徐长贵,涂丹凤,兰晓东 . 渤海海域北部JX1-1反转构造与油气成藏关系[J]. 天然气地球科学, 2013 , 24(2) : 329 -334 . DOI: 10.11764/j.issn.1672-1926.2013.02.329

Abstract

Based on the high-resolution 3-D seismic profiles and combined with coherent technology and other advanced seismic data processing as well its interpretation techniques,we discussed and studied the deformation characteristics of the inversion in the JX1-1 area,and analyzed the relationship between JX1-1 inversion tectonics and hydrocarbon accumulation in Liaodongwan offshore of Bohai Bay basin.There are numerous faults of varying scales in JX1-1 area,and the NE-trending faults are predominant.Too large inversion is not favorable for the shallow hydrocarbon accumulation in Neogene.The Tan-Lu fault's transition and turning parts of the Paleogene inversion tectonics zone are the favorable objectives for oil and gas exploration in the offshore Bohai Bay basin.JX1-1 region in the Tan-Lu strike-slip fault stresses under the effect of reversal,during the late sedimentary periods of the Paleogene Shahejie Formation,forming a good anticline structure.In the Paleogene Dongying Formation deposition period,it continued to uplift,until the late Paleogene and early Neogene inversion structures have been formed.The JX1-1 inversion tectonics had also significant influences on the formation of the structural traps,spatial distribution of sedimentary systems and hydrocarbon migration,as well as improvement on reservoir properties.

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