石油与天然气地质 ›› 1992, Vol. 13 ›› Issue (1): 114-123.doi: 10.11743/ogg19920112

• 论文 • 上一篇    

准噶尔盆地演化历史与含油气性探讨

骆传才   

  1. 地质矿产部石油地质综合大队 湖北 江陵 434100
  • 收稿日期:1991-10-05 修回日期:1991-10-26 出版日期:1992-03-25 发布日期:2012-01-16
  • 基金项目:

    "七五"科技攻关项目《西北主要盆地类型、演化历史及其与天然气(油)分布关系的初步研究》基础上撰写而成。

DISCUSSION ON EVOLUTION HISTORY AND HYDROCARBON POTENTIAL OF JUNGGAR BASIN

Luo Chuanchai   

  1. Comprehensive Research Institute of Petroleum Geology, MGMR, Jiangling, Hubei
  • Received:1991-10-05 Revised:1991-10-26 Online:1992-03-25 Published:2012-01-16

摘要:

准噶尔盆地的发展,经历了晚古生代弧后盆地阶段,晚二叠世至侏罗纪的残余弧后盆地阶段以及其后的远源碰撞山间盆地阶段。它是一个由多期原型盆地叠置的继承性盆地,为烃源岩的生成演化提供了有利的构造环境。各时代各类圈闭发育,含油气远景良好。

关键词: 准噶尔盆地, 盆地演化, 弧后盆地, 残余弧后盆地, 远源碰撞山间盆地, 含油气性评价

Abstract:

Junggar Basin is one of the major oil and gas bearing basins in Northwest China.It covers an area of 13?104 km2.During its longtime succesive subsidence,the basin received sediments over 10000m thick,especially the thickness in the south margin gets near 20000m.Since Late Devonian,Junggar-Turpan back-arc basin and Northern Junggar arc-basin tectonics formed after the uplift of the West Tianshan-Jiolotag island arc due to the subducting of the Tarim Plate toward the Altan-Junggar Plate.In the late stage of the Early Permian,the Tarim Plate collided and connected with the Altan-Junggar Plate,en-tering the development stage of back-arc remnant basin.The intermont basin stage began in the end of Jurassic resulted by northward subduction of the Indian Plate.Junggar Basin is a large composite basin superimposed by multi-prototype basin which provides favourable and stationary environment for the formation and evolution of the source rocks.The Middle and Upper Carboniferous,Lower Permian are pricipal source rocks,and the Triassic-Jurassic Systems are also important.Various traps developed well in the basin and hydrocarbon potential is fine.