石油与天然气地质 ›› 1986, Vol. 7 ›› Issue (1): 59-67.doi: 10.11743/ogg19860107

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海拉尔盆地石油地质特征及勘探前景

龙永文1, 张吉光2   

  1. 1. 大庆石油管理局;
    2. 大庆石油勘探开发研究院
  • 收稿日期:1985-03-18 修回日期:1985-08-24 出版日期:1986-03-25 发布日期:2012-01-16

CHARACTERISTICS OF PETROLEUM GEOLOGY AND PETROLEUM POTENTIAL OF HAILAR BASIN

Long Yongwen1, Zhang Jiguang2   

  1. 1. Exploration Department of Daqing Petroleum Administration;
    2. Research Institute of Petroleum Exploration and Development, Daqing Oilfield
  • Received:1985-03-18 Revised:1985-08-24 Online:1986-03-25 Published:2012-01-16

PDF (PC)

621

被引次数

12

摘要：

海拉尔盆地是在古生代褶皱基底上形成的中新生代断陷盆地,国内面积为40550km2。盆内上侏罗统厚达5300m,其扎赉诺尔群的深浅湖相、沼泽相沉积最厚达4400m,是盆地主要生油层,有机质丰度中等,干酪根属Ⅱ、Ⅲ类,已成熟。盆内呈北东向长条状凹凸相间的构造格局,各凹陷都具有多物源的沉积特征,砂体发育,各类圈闭众多。地面及钻孔中已见多处油气显示,并在海参4井中发现了工业油流,说明盆地勘探前景良好。

Abstract:

Hailar Basin,located on the west side of Da Hinggan Ling,is a fault depression laid upon the folded basement of Hercynian movement with a area of 70480km2.Fluviatile and lacustrine deposits of the Jurassic Jalai Nut Group(J3zl)are up to 5300m thick with 7 sags in which their formation thicknesses are thicker than 3000m.The 1000-2000m thick Damoguaihe Formation of the Jalai Nut Group(J3d)is considered to be the maim source bed in which 400-600m thick source rocks are found.Their organic carbon is 2.148%,chloroform bitumen A 791ppm,and total hydrocarbon 379ppm.Based on hydrocarbon productivity,vitrinite reflectance and the n-alkane distribution,the oil generation threshold here is 1500m,and the peak is 3500m.Now commercial oil flow is obtained from sandstone reservoirs.5 kinds of traps,i.e. structural,stratigraphic,lithologic,buried-hill and volcanic traps could be found,and petroleum prospects is brilliant.