石油与天然气地质 ›› 1994, Vol. 15 ›› Issue (3): 241-247.doi: 10.11743/ogg19940308

• 论文 • 上一篇    下一篇

准噶尔盆地东部侏罗系地震相

蒲仁海1, 梅志超1, 唐忠华2   

  1. 1. 西北大学地质系, 西安710069;
    2. 新疆石油地调处研究所, 乌鲁木齐830011
  • 收稿日期:1993-06-03 修回日期:1994-01-10 出版日期:1994-09-25 发布日期:2012-01-16

SEISMIC FACIES OF JURASSIC IN EASTERN JUNGGAR BASIN

Pn Renhai1, Met Zhicao1, Tang Zhonghua2   

  1. 1. Department of Ceology, Northwest University, Xian;
    2. Research Institute of Ceological Survey Division, Xinjiang Petrloeum Administration, Urumqi
  • Received:1993-06-03 Revised:1994-01-10 Online:1994-09-25 Published:2012-01-16

PDF (PC)

403

被引次数

15

摘要：

准噶尔盆地东部侏罗系中煤系的广泛发育对地震速度和振幅的变化造成较大的影响,使得利用地震相研究薄层的能力受到一定限制.但在较密的二维测网上组合振幅异常在平面上的展布形态和延伸趋势,对于预测某些适当厚度的沉积体仍有较好的效果.根据侏罗系的各种反射标志,总结出该区八种地震相类型,解释为冲积扇、河道、三角洲、湖泊、沼泽等沉积相."湖沼相"是该区侏罗系主要的生油相带,主要的储集相为河道相.

关键词: 侏罗系, 地震相, 沉积体系, 准噶尔盆地

Abstract:

Extensively developed Jurassic coal-meassures in the eastern Junggar Basin have considerable influence on seismic velosity and seismic amplitudes,and this might even impose restriction to some extent on the study of laminnae through seismic factes.But the planar distribution pattern and extension tendency of complex amplitude anomaly in dense 2-dimensional seismic netwotk may be efficient in the prediction of some depositional bodies of suitable thickness.According to Jurassic reflective markers,eight seismic factes have been generalized in this paper,and they in turn could be interpreted as allavialfan,fluvial channel,delta,lake and marsh land.It is proposed by the authors that lake-marsh land facies are the main hydrocarbon-generation factes zones of the region,and the fluvial channels are themain reservoir factes.