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鄂尔多斯盆地伊盟隆起上古生界烃源岩地球化学特征

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文章导航 > 海洋地质前沿 > 2016 > 32(9): 26-31

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王明健, 孟祥君, 陈晞, 朱晓青. 鄂尔多斯盆地伊盟隆起上古生界烃源岩地球化学特征[J]. 海洋地质前沿, 2016, 32(9): 26-31. doi: 10.16028/j.1009-2722.2016.09004
引用本文: 王明健, 孟祥君, 陈晞, 朱晓青. 鄂尔多斯盆地伊盟隆起上古生界烃源岩地球化学特征[J]. 海洋地质前沿, 2016, 32(9): 26-31. doi: 10.16028/j.1009-2722.2016.09004
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WANG Mingjian, MENG Xiangjun, CHEN Xi, ZHU Xiaoqing. GEOCHEMISTRY AND EVALUATION OF UPPER PALEOZOIC SOURCE ROCK ON YIMENG UPLIFT,ORDOS BASIN[J]. Marine Geology Frontiers, 2016, 32(9): 26-31. doi: 10.16028/j.1009-2722.2016.09004
Citation: WANG Mingjian, MENG Xiangjun, CHEN Xi, ZHU Xiaoqing. GEOCHEMISTRY AND EVALUATION OF UPPER PALEOZOIC SOURCE ROCK ON YIMENG UPLIFT,ORDOS BASIN[J]. Marine Geology Frontiers, 2016, 32(9): 26-31. doi: 10.16028/j.1009-2722.2016.09004
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鄂尔多斯盆地伊盟隆起上古生界烃源岩地球化学特征

  • 1 国土资源部海洋油气资源与环境地质重点实验室, 青岛 266071;

  • 2 海洋国家实验室海洋油气资源与探测技术功能实验室, 青岛 266071;

  • 3 中国地质调查局青岛海洋地质研究所, 青岛 266071;

  • 4 国家海洋局北海航空支队, 青岛 266033

  • 基金项目:

    国土资源部海洋油气资源与环境地质重点实验室开放基金(MRE201223)

    山东省博士后创新项目专项资金(201201001)

    国家自然科学基金 (41606079)

    中国地质调查局地质调查项目(GZH201400205)

详细信息
    作者简介: 王明健(1983-),男,高级工程师,主要从事盆地构造与油气成藏方面的研究工作.E-mail:wangmingjian0328@qq.com
    通讯作者: 孟祥君(1975-),男,高级工程师,主要从事地球物理与大地构造方面的研究工作.E-mail:sdqdmxj@126.com

  • 中图分类号: P591

GEOCHEMISTRY AND EVALUATION OF UPPER PALEOZOIC SOURCE ROCK ON YIMENG UPLIFT,ORDOS BASIN

  • 1 The Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China;

  • 2 Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China;

  • 3 Qingdao Institute of Marine Geology, CGS, Qingdao 266071, China;

  • 4 North China Sea Air-borne Detachment of China Marine Surveillance, SOA, Qingdao 266033, China

More Information

    摘要
  • 烃源岩是石油和天然气生成的物质基础,决定了勘探区块的潜在资源量,具有重要的研究价值。对鄂尔多斯盆地伊盟隆起上古生界烃源岩进行岩性、厚度以及地球化学分析,结果表明:上古生界烃源岩岩性主要为泥岩、炭质泥岩和煤层,上古生界暗色泥岩总厚度一般为10~50 m;平面上具有南厚北薄、东厚西薄、局部发育的特征;太原组和山西组炭质泥岩和煤层有机质丰度较高;干酪根以Ⅲ型为主,其次为Ⅱ型;原始有机质形成于弱氧化环境;上古生界烃源岩Ro值介于0.6%~1.8%之间,已经进入成熟-高成熟阶段,且南部生气强度大。其研究结果可以为伊盟隆起区上古生界的油气资源评估提供依据。
    Source rock founds the basis for hydrocarbon generation and is of significance to determination of the resource potential in the exploration area. This paper is devoted to the lithology, thickness and geochemical characteristics of the Upper Paleozoic source rock in the Yimeng Uplift belonging to Ordos Basin. The Upper Paleozoic source rocks in the Yimeng Uplift are mainly consisting of dark mudstone, carbonaceous mudstone and coal of the Taiyuan and Shanxi Formations. According to the statistics, the total thickness of the Upper Paleozoic dark mudstone in northern Ordos Basin ranges from 10 to 50m while the total thickness of coal is between 2 and 25m. Hydrocarbon source rocks in the southern and eastern parts of the Yimeng Uplift are thicker than those in the northern and western parts, and the quality of source rocks seems better in some depressions than that in other areas. Carbonaceous mudstone and coals in the Taiyuan and Shanxi Formations are relatively high in organic matters, dominated by the Type Ⅲ of Kerogen followed by the type Ⅱ. The original organic matter is supposed to be deposited in an aerobic environment. Ro value ranges from 0.6% to 1.8%, suggesting that the source rock has entered a matured or high matured stage. The amount of gas generated by the Upper Paleozoic source rock in the southern part is larger than that produced in the northern part of the Yimeng Uplift. The results of the study may provide a basis for hydrocarbon evaluation of the Upper Paleozoic in the Yimeng Uplift.
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收稿日期:  2016-06-06

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