石油学报 ›› 2007, Vol. 28 ›› Issue (3): 39-43.DOI: 10.7623/syxb200703008

• 地质勘探 • 上一篇    下一篇

阳信洼陷火成岩对烃源岩形成及演化的作用

宋占东1, 查明1, 曲江秀1, 周宇成2   

  1. 1. 中国石油大学地球资源与信息学院, 山东东营, 257061;
    2. 江苏油田试采一厂地质研究所, 江苏江都, 225265
  • 收稿日期:2006-04-09 修回日期:2006-08-08 出版日期:2007-05-25 发布日期:2010-05-21
  • 作者简介:宋占东,男,1971年5月生,1997年毕业于大庆石油学院,现为中国石油大学(华东)在读博士研究生,主要从事油气形成与分布规律研究.E-mail:songfy01@163.com
  • 基金资助:
    中国石油化工股份有限公司重点勘探研究项目(P03013)部分成果.

Effect of igneous rocks on formation and evolution of source rocks in Yangxin Sag

Song Zhandong1, Zha Ming1, Qu Jiangxiu1, Zhou Yucheng2   

  1. 1. Faculty of Geo-Resource and Information, China University of Petroleum, Dongying 257061, China;
    2. Geologic Research Institute of No. 1 Oil Production Plant, Jiangsu Oil Field, Jiangdu 225265, China
  • Received:2006-04-09 Revised:2006-08-08 Online:2007-05-25 Published:2010-05-21

摘要: 阳信洼陷沙河街组主力烃源岩中发育有玄武岩和辉长岩等基性火成岩,并伴有规模不等的热液活动.火成岩热液为烃源岩提供了大量矿物质和养料,使火成岩上部地层的烃源岩中有机质富集,形成优质烃源岩.火成岩及其热液活动给烃源岩带来热量、大量过渡金属矿物和外部氢源,这些因素使烃源岩在进入成熟门限之前即可生成低熟油气.同时,降低火成岩区生油门限的深度,可使烃源岩存在多个生烃高峰.建立了阳信洼陷火成岩区烃源岩的演化模式.

关键词: 火成岩, 低成熟油, 烃源岩, 生烃演化, 阳信洼陷

Abstract: The basalts and gabbros were developed in the main hydrocarbon source rocks of Yangxin Sag,and thermalwaters were distributed more or less.The magmas and thermalwaters provided a large quantity of volcanic minerals and nutriments for the source rocks,which resulted in the shale around igneous rocks with abundant organic carbon.The shale was basically excellent source rock with highpotential hydrocarbon.The magmas and thermalwaters brought the transitional metals and heat to source rocks,which caused mature organic matter of the source rocks and hydrocarbon generation earlier.The transitional metals and some volcanic minerals were active catalysts to hydrocarbon generation from the organic matter in the source rocks around the igneous rocks,which represented immature oil and gas being generated at low temperatures or shallow formation in the burial of the source rocks and igneous rocks.The evolution model of source rocks in Yangxin Sag was established.

Key words: igneous rocks, low maturation oil, source rocks, hydrocarbon evolution, Yangxin Sag

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