天然气地质学

松辽盆地北部嫩江组沉积物重力流形成机制

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  • (1.北京大学石油与天然气研究中心,北京 100871;
    2.中国石油勘探开发研究院廊坊分院,河北 廊坊 065007;
    3.中国石油大庆油田有限责任公司勘探开发研究院,黑龙江 大庆 163712)
莫午零(1978-),男,广西桂林人,工程师,博士,主要从事沉积学与油气勘探研究.E-mail:MOWL50@163.com.

收稿日期: 2012-06-06

  修回日期: 2012-07-11

  网络出版日期: 2013-06-10

基金资助

"国家重点基础研究发展规划”项目(编号:2006CB202302)资助.

Generation Mechanism of Sediment Gravity Flow ofNenjiang Formation in the North Songliao Basin

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  • 1.School of Earth and Space Sciences,Peking University,Beijing 100871,China;
    2.PetroChina Exploration and Development Research Institute-Langfang,Langfang 065007,China;
    3.Exploration and Development Research Institute of Daqing Oil Field Co.Ltd.,Daqing 163712,China

Received date: 2012-06-06

  Revised date: 2012-07-11

  Online published: 2013-06-10

摘要

松辽盆地属于大型陆相中生界含油气盆地,通过高分辨率三维地震资料分析,发现在松辽盆地北部嫩江组一段发育大规模重力流水道系统,嫩江组二三段发育多套滑塌体。研究认为嫩江组一段发育的大型重力流水道系统是由于河流直接入湖而形成;嫩江组二三段发育的3套滑塌体是由于三角洲前缘古地形坡度大、沉积物发生重力滑动所导致。研究松辽盆地大型陆相坳陷湖盆发育的沉积物重力流分布特征及其形成机制对在湖相泥岩中寻找岩性油气藏具有一定的指导意义。

本文引用格式

莫午零,吴朝东,张顺 . 松辽盆地北部嫩江组沉积物重力流形成机制[J]. 天然气地球科学, 2013 , 24(3) : 555 -565 . DOI: 10.11764/j.issn.1672-1926.2013.03.555

Abstract

Songliao Basin is a large-scale Mesozoic continental petroliferous basin.Based on analysis of high-resolution 3D seismic data,a large-scale sediment gravity flow channel system is identified in the Member 1 of Nenjiang Formation,and multiple sets of slip blocks are identified in the Member 2-3 of Nenjiang Formation in the north Songliao Basin.It indicates that this channel system resulted from the rushing of river into lake,and the 3 slip blocks resulted from gravity slumping of delta front sediment due to its great slope gradient,which will be transported by the earthquake or flood.It has extremely important meaning to hydrocarbon reservoirs within lacustrine mudstones of large-scale depression-lacustrine basin that we have made clear about the generation mechanism of sediment gravity flow in the Nenjiang Formation in the Songliao Basin.

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