吉林大学学报(地球科学版) ›› 2015, Vol. 45 ›› Issue (3): 736-742.doi: 10.13278/j.cnki.jjuese.201503108

• 地质与资源 • 上一篇    下一篇

山东昌乐凹陷油页岩地球化学特征及成因探讨

孙耀庭1,2, 徐守余1, 张世奇1, 徐昊清2, 郭丽丽2   

  1. 1. 中国石油大学(华东)地球科学与技术学院, 山东 青岛 266580;
    2. 中国石化胜利油田分公司地质科学研究院, 山东 东营 257015
  • 收稿日期:2014-10-12 发布日期:2015-05-26
  • 作者简介:孙耀庭(1978),男,高级工程师,博士研究生,主要从事沉积学及石油地质学研究,E-mail:syt1979@sina.com。
  • 基金资助:

    国家重大科技专项项目(2011ZX05006)

Geochemical Characteristics and Genesis of the Oil Shale in Changle Sag,Shandong Province

Sun Yaoting1,2, Xu Shouyu1, Zhang Shiqi1, Xu Haoqing2, Guo Lili2   

  1. 1. School of Geosciences, China University of Petroleum(East China), Qingdao 266580, Shandong, China;
    2. Geo-Science Research Institute, Shengli Oilfield Company, SINOPEC, Dongying 257015, Shandong, China
  • Received:2014-10-12 Published:2015-05-26

摘要:

山东昌乐凹陷油页岩出产于古近系五图群李家崖组,与济阳拗陷和潍北凹陷孔二段相当。利用有机地球化学方法对昌乐凹陷油页岩品质进行分析,结果显示该区油页岩有机质丰度较高、干酪根类型主要为Ⅰ型和Ⅱ1型,处于未熟低熟阶段,具有较好的勘探开发前景。通过区域构造演化和气候变化分析,昌乐凹陷油页岩形成于郯庐断裂带左旋右旋转换期,构造活动强度较弱加之温暖湿润的气候环境促成了油页岩的发育。油页岩与煤共生于水进体系域和高水位体系域之中,油页岩成矿模式为断陷湖沼型。

关键词: 昌乐凹陷, 油页岩, 李家崖组, 有机质, 地球化学, 成因, 山东

Abstract:

The oil shale of Changle sag exists in Lijiaya Formation of Wutu Group, corresponds to the stratum of 2nd Kongdian Formation in Jiyang depression and Weibei sag. By means of the organic geochemical theories and methods, the characteristics of oil shale in Changle sag are studied. The oil shale has a high organic matrix abundance. Its kerogen type is mainly typeⅠ and typeⅡ1, at an immature-low maturity stage, has a strong potential for oil generation,so it has good prospects for oil and gas exploration. By analyses of the regional tectonic evolution and climate change, the oil shale of Changle sag are formated in left turn to right turn conversion period of Tanlu fault zone, weak tectonic activity coupled with warm and humid climate. The oil shale and coal co-exist in TST and HST. The oil shale metallogenic model belongs to the rift lake march type.

Key words: Changle sag, oil shale, Lijiaya Formation, organic matrix, geochemistry, genesis, Shandong Province

中图分类号: 

  • P618.12

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