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现代地质 ›› 2013, Vol. 27 ›› Issue (5): 1258-1264.

• 油气分布规律 • 上一篇    下一篇

南堡凹陷油气分布特征与主控因素分析

姜福杰1,2,董月霞3,庞雄奇1,2,汪英勋1,2,郭继刚1,2,范柏江1,2   

  1. 中国石油大学(北京)盆地与油藏研究中心,北京 102249
  • 收稿日期:2013-03-20 修回日期:2013-06-20 出版日期:2013-10-17 发布日期:2013-10-31
  • 作者简介:姜福杰,男,博士,讲师,1979年出生,地质资源与地质工程专业,主要从事油气成藏机理和资源评价的研究。 Email:jiangfjwll@ 163. com
  • 基金资助:

    国家自然科学基金项目(41102085);国家科技重大专项项目“大型油气田及煤层气开发”( 2011ZX05006 - 006;国家重点基础研究发展规划“973”项目(2011CB201105);教育部博士点新教师基金项目(20110007120001)

Hydrocarbon Distribution Features and Main Controlling Factors in the Nanpu Sag

JIANG Fu-jie1,2,DONE Yue-xia3,PANG Xiong-qi1,2,WANG Ying-xun1,2,GUO Ji-gang1,2,FAN Bo-jiang1,2   

  1. Basin and Reservoir Research Center,China University of Petroleum,Beijing 102249
  • Received:2013-03-20 Revised:2013-06-20 Online:2013-10-17 Published:2013-10-31

摘要:

南堡凹陷已发现的油气储量分布具不均衡性。平面上,石油主要分布在南堡1号、2号和高尚堡构造带,天然气主要分布在南堡1, 2, 5号构造带。纵向上,油气主要分布在源上组合,源内和源下组合的油气储量相对较少。依据油气成藏要素的综合分析,确定了南堡凹陷油气分布主控因素:(1)烃源岩控制了油气的分布范围,已发现的80%以上的油气藏分布在距排烃中心15 km以内;(2)有利的沉积相带控制了沉积砂体,进而控制了油气的分布层位,目前已发现的油气储量主要分布在三角洲、河流沉积体系内;(3)断裂一方面控制了圈闭的类型和空间展布,进而控制油气藏的规模和位置,另一方面,断层作为油气纵向运移的通道,控制了油气纵向运移距离,已发现的油气藏90%以上分布在断裂带附近。综合而言,南堡凹陷油气分布受烃源岩、沉积相和断裂的多重控制。

关键词: 南堡凹陷, 油气分布特征, 主控因素, 断裂, 烃源岩

Abstract:

hydrocarbon accumulation,oil and gas distribution in the Nanpu sag are mainly controlled by the following factors.  Firstly,source rocks have controlled the distribution areas of hydrocarbon reservoirs.  The study located in the place which is within 15 kilometers from shows more than 80% of hydrocarbon reservoirs have expulsion center.Secondly the favorable sedimentary fades have controlled the sand distribution and reservoir propertiesthe lays of hydrocarbon reservoirs and their scales.  Finally,faults are the most important factor controlling hydrocarbon reservoirs' distribution. On the one hand faults have controlled thetrap types and their spatial distribution,further,  the  size  and  location  of  hydrocarbon  reservoirs. On the ether hand,as channels for hydrocarbon's vertical migration,faults control their vertical migration distance.To sum up,the hydrocarbon distribution of the Nanpu sag is under the controlling effects of the combination of source rocks,sedimentary facies and faults.The deltas near the source rocks , channel sands and the fault zones interconnecting vertically are favorable exploration areas.

Key words: Nanpu sag, feature of hydrocarbon distribution, main controlling factor, fault, source rock

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