石油与天然气地质 ›› 2001, Vol. 22 ›› Issue (4): 331-336.doi: 10.11743/ogg20010410

• 油气空间 • 上一篇    下一篇

松辽盆地十屋-德惠地区沉积体系特征

王果寿1   

  1. 1. 成都理工大学石油系, 四川成都, 610059;
    2. 中国石化石油勘探开发研究院荆州新区勘探研究所, 湖北荆州, 434100
  • 收稿日期:2001-09-14 出版日期:2001-12-25 发布日期:2012-01-16

CHARACTERISTICS OF SEDIMENTARY SYSTEMS IN SHIWU-DEHUI REGION,SONGLIAO BASIN

Wang Guoshou1   

  1. 1. Petrolenm Departmentof Chengdu College of Technology, Chengdu, Sichuan;
    2. Reaseach Institute of Exploration and Development, SINOPEC, Jingzhou, Hubei
  • Received:2001-09-14 Online:2001-12-25 Published:2012-01-16

PDF (PC)

561

被引次数

79

摘要：

综合利用地质、测井和地震信息,结合古地理、地层岩石学特征、岩石组合特征及沉积构造特征等方面的研究,在松辽盆地十屋-德惠地区划分出冲积扇、河流-三角洲、水下扇-扇三角洲及湖泊等4种沉积体系类型,9种主要的沉积相和若干沉积亚相.断陷初期和坳陷早期以发育冲积扇为主;断陷早中期以发育湖泊体系及水下扇-扇三角洲体系为主,湖泊体系中深-半深湖亚相及水下重力流水道相较为发育;断陷晚期水体略微变浅,以滨浅湖及河流-三角洲沉积为主.坳陷期形成两个大的水退、水进旋回,泉头组及姚家组以河流及浅水湖泊沉积为主;青山口组和嫩江组沉积时期则主要发育湖泊体系.

关键词: 沉积相特征, 沉积体系, 十屋-德惠地区, 松辽盆地

Abstract:

According to geological survey,well log,seismic information and rock assemblages combined with the interpretation of log and seimic information,Shiwu Dehui region in Songliao Basin could be divided into four types of sedimentary systems such as alluvial fan system,fluvial delta system,subaqueous fan fan delta and lacustrine systems and nine kinds of sedimentary facies and a number of subfacies.The study shows that different sedimentary systems developed in different developing stages of the basin.Alluvial fan facies developed in the initial fault depressed stage;lacustrine and subaqueous fan fan delta systems developed in the early middle fault depressed stage.In the lacustrine system,deep semideep lacustrine facies and subaqueous gravity flow facies developed well,in the late peried of faulted depression,water depth was shallower,the dominant deposits were those of shallow lake and fluvial delta facies.Two major water transgressive and regressive cycles formed in depression stage can be recognized.The Quantou Formation and Yaojia Formation are mainly of fluvial and shallow lake deposits while lacustrine system is the dominant facies of Qingshankou and Nunjiang Formations.

Key words: feature of sedimentary facies, sedimentary system, Shiwu-Dehui region, Songliao Basin

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