石油与天然气地质 ›› 1981, Vol. 2 ›› Issue (3): 284-291.doi: 10.11743/ogg19810309

• 论文 • 上一篇    下一篇

从镜煤反射率看鄂尔多斯盆地北部石炭系太原组有机质的成熟度和含油气远景

祝总祺1, 李璧琪2, 谢秋元2   

  1. 1. 西北大学;
    2. 地质部第三普查勘探大队
  • 出版日期:1981-09-25 发布日期:2012-01-16

THE MATURITY OF ORGANIC MATTER AND OIL AND GAS POTENTIAL OF TAIYUAN FORMATION IN NORTHERN ORDOS BASIN ACCORDING TO THEIR VITRITE REFLECTIVITY

Zhu Zongqi1, Lee Biqi2, Xie Qiuyuan2   

  1. 1. Northwest University;
    2. The 3rd Petroleum Prospecting and Exploration Brigade, Ministry of Geology
  • Online:1981-09-25 Published:2012-01-16

PDF (PC)

667

被引次数

2

摘要：

五十年代后期,地质部和石油部先后在鄂尔多斯盆地北部——伊克昭盟地区展开了大规模的石油普查、详查和钻探工作。当时,钻探主要集中在乌兰格尔一隅,未获工业油气流。

Abstract:

This paper briefly clarifies the basic geological theories of vitrite refle-ctivity（Ro max）and gives a preliminary discussion with Romax on the con-ditions of oil and gas origin in Taiyuan formation of Carboniferous Sys-tem in northern Ordos Basin.It is suggested that Romax ranging from 0.5to 1.3% is confirmed as the main stage of oil formation;<0.5%,as im-mature stage;>1.3%,as overmature stage,that is,gas formation stage.The result shows that the organic matter of Otoc County and its south ernregion have reached overmature stage;in its northern region,the Taiyuan formation is just at the main mature stage,but the conditions of conser-vation on both sides of east and west are rather defective,the availableregion is only restricted in a narrow zone in the southern part of the west.Finally,in combination with the geotectonic evolution,sedimentary cha-racteristics and lithofacies of the basin,the districts of oil and gas pot-ential of Taiyuan formation has been divided.