新疆石油地质

新疆石油地质 ›› 2009, Vol. 30 ›› Issue (4): 454-458.

• 油气勘探 • 上一篇    下一篇

柴达木盆地北缘侏罗系对比及含油气系统

王昌桂1, 马立协2, 王文弟2, 乔子真2, 侯安平2, 高雪峰2, 任玉芬2   

  1. 1.中国石油 吐哈油田分公司,新疆 哈密 839009;
    2.中国石油 青海油田分公司 勘探开发研究院,甘肃 敦煌 736202
  • 收稿日期:2008-03-18 出版日期:2009-08-01 发布日期:2020-08-25
  • 作者简介:王昌桂（1935-）,女,山东潍坊人,教授级高级工程师,石油地质, （Tel）010-64962853（E-mail）cgwang@sina.com.

Correlation of Jurassic in Northern Margin of Qaidam Basin and Its Petroleum System

WANG Chang-gui1, MA Li-xie2, WANG Wen-di2, QIAO Zi-zhen2, HOU An-ping2, GAO Xue-feng2, REN Yu-fen2   

  1. 1. Tuha Oilfield Company, PetroChina, Hami, Xinjiang 839009, China;
    2. Research Institute of Exploration and Development, Qinghai Oilfield Company, PetroChina, Dunhuang, Qinghai 736202, China
  • Received:2008-03-18 Online:2009-08-01 Published:2020-08-25

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摘要： 柴达木盆地北缘是一个老油区,中、下侏罗统是主要烃源岩。通过区域研究,将侏罗系划为 3 统 4 组,即下侏罗统小煤沟组,中下侏罗统大煤沟组,上侏罗统红水沟组和采石岭组,其中大煤沟组可细划分 7 段。对钻遇侏罗系的38 口井逐次进行了划分和对比,总结了下侏罗统、中侏罗统的沉积特征。在此基础上划分出下侏罗统含油气系统和中侏罗统含油气系统,提出冷湖—南八仙弧形构造带、鄂博梁构造带为勘探有利区。

关键词: 柴达木盆地, 北缘, 侏罗系, 地层对比, 含油气系统

Abstract: The north margin of Qaidam basin is an old oil region. The Middle and Lower Jurassic strata are its main source rocks. Through regional studies, the Jurassic is divided into 3 series and four formations, i.e. Xiaomeigou formation of Lower Jurassic, Dameigou formation of Middle-Lower Jurassic and Hongshuigou formation and Caishiling formation of Upper Jurassic, of which Dameigou formation can be subdivided into 7 members. This paper presents the classifications and correlations of 38 wells encountered into the Jurassic one by one, and reviews the sedimentary characteristics of Lower Jurassic and Middle Jurassic, based on which the petroleum systems of the Lower Jurassic and the Middle Jurassic. It is concluded that the Lenghu-Nanbaxian arc structural belt and the Eboliang structural belt are favorable areas for petroleum exploration.

Key words: Qaidam basin, north margin, Jurassic, stratigraphic correlation, petroleum system

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