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
Received date: 2012-07-23
Revised date: 2012-11-22
Online published: 2013-04-10
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。
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
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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