石油学报 ›› 1999, Vol. 20 ›› Issue (6): 9-15.DOI: 10.7623/syxb199906002

• 地质勘探 • 上一篇    下一篇

辽河盆地西部凹陷深层石油地质综合评价

李琳, 任作伟, 孙洪斌   

  1. 辽河油田勘探开发研究院
  • 收稿日期:1998-05-19 修回日期:1998-10-05 出版日期:1999-11-25 发布日期:2010-05-21
  • 作者简介:李琳,女,1966年11月生.1989年毕业于石油大学.现在辽河油田勘探开发研究院工作,工程师.通讯处:辽宁盘锦.邮政编码:124010

AN INTEGRATED EVALUATION ON PETROLEUM GEOLOGY OF THE DEEP RESERVOIRS IN THE WEST SAG, LIAOHE BASIN, CHINA

Li lin   

  1. Liaohe Oilfield
  • Received:1998-05-19 Revised:1998-10-05 Online:1999-11-25 Published:2010-05-21

摘要: 通过对辽河盆地西部凹陷深层石油地质特征的综合研究,搞清了本区深层构造及演化特征,揭示了深层沉积特征、砂体展布规律以及深层成藏的主控因素,分析了深层储集性能及孔隙演化规律。本区深层5000m以上烃源岩处于成熟阶段,生排烃时窗长,油源充足;深层储层以沙二段扇三角洲前缘砂体及沙三段湖底扇辫扶沟道和扇中前缘砂体储集性能最好,结合先进的储层预测技术发现和落实了清20南等一系列构造及岩性圈闭,指出了下步勘探方向,为深层勘探的突破奠定了基础。

关键词: 辽河盆地, 深层, 烃源岩, 储层, 圈闭

Abstract: On the basis of integrated geological studies on deep reservoirs in the west sag of Liaohe Basin,this paper presents substructures and their evolution,the depositional feature,sandbody spatial distribution of deep reservoir beds,the deep reservoir characteristics as well as the dominant factors of deep reservoir.A conclusion from the studies is that the favorable source rocks buriedat 5000 m or more are in their mature phase and have longer oil generation--expelling window,indicating that the petrophysicalproperties of Sha l-2 numbers fan-delta frontal sandbody and Sha3 braided channel sandbody of sublacustrine fan are the bestreservoir in the deep area.Especially a series of structural and lithologic traps are found by using various reservoir predictingmethods,a number of favorable areas are pointed out

Key words: Liaohe Basin, deep strata, source rock, reservoir, trap