西南石油大学学报(自然科学版)

• 地质勘探 • 上一篇    下一篇

富黄探区延长组烃源岩评价与油源对比

唐建云1,2 *,史政3,宋红霞4,张琳1,2,陈玉宝5   

  1. 1. 克拉玛依职业技术学院石油工程系,新疆克拉玛依834000;
    2. 中国石油大学(北京)克拉玛依校区石油学院,新疆克拉玛依834000;
    3. 中国石化石油勘探开发研究院无锡石油地质研究所,江苏无锡214126;
    4. 中国石油吐哈油田勘探开发研究院,新疆哈密839009;5. 延长油田股份有限公司,陕西延安716005
  • 出版日期:2016-06-01 发布日期:2016-06-01
  • 通讯作者: 唐建云,E-mail:tangjy0808@163.com
  • 基金资助:

    国家科技重大专项(2011ZX05005);山东省自然科学基金(ZR2010DM016);克拉玛依市科技计划项目(SK201532)。

Hydrocarbon Source Evaluation and Oil Source Contrast of the#br# Yanchang Formation in Fu-Huang Exploration Area,Ordos Basin

TANG Jianyun1,2*, SHI Zheng3, SONG Hongxia4, ZHANG Lin1,2, CHEN Yubao5   

  1. 1. Department of Petroleum Engineering of Karamay Vocational and Technical College,Karamay,Xinjiang 834000,China
    2. Petroleum Institute,Karamay Campus,China University of Petroleum(Beijing),Karamay Xinjiang 834000,China
    3. Wuxi Institute of Petroleum Geology,SINOPEC,Wuxi,Jiangsu 214126,China
    4. The Institute of Exploration and Development of Tuha Oilfield,PetroChina,Hami,Xinjiang 839009,China
    5. Yanchang Petroleum Co. Ltd.,Yan′ an,Shaanxi 716005,China
  • Online:2016-06-01 Published:2016-06-01

摘要:

针对富黄“新”探区烃源岩生烃潜力以及区内含油层系的石油来源问题,采用有机岩石学和地球化学的手段
和方法进行了深入研究。研究结果表明:富黄探区长7 烃源岩有机质丰度高,有机质类型以I- II1 型为主,有机质成
熟度高,为好烃源岩;长6 烃源岩有机质类型以III -II2 为主,次为I -II2 型,有机质成熟-高成熟,为中等-好烃源
岩;长4+5 烃源岩有机质丰度中等-高,有机质类型以III 型为主,次为II2 型,有机质低熟-成熟,为非-差烃源岩。
长4+5、长6 原油性质相近,为陆相淡水湖泊成因的中等成熟油;长4+5、长6 和长7 烃源岩对长4+5 和长6 油藏均有
贡献,但长7 烃源岩贡献最大,长4+5 暗色泥岩的贡献较小。研究区三叠系长7 烃源岩的发现,拓展了鄂尔多斯盆地
延长组长7 有限烃源岩的分布范围,对指导油田的下一步勘探具有重要意义。

关键词: 延长组, 烃源岩, 油源对比, 富黄探区, 鄂尔多斯

Abstract:

To evaluate the hydrocarbon potential and to establish oil source of oil-bearing series in exploration area,we studied
the hydrocarbon source rock and the crude oil by means of organic petrology and geochemistry. The results show that the
Chang 7 hydrocarbon source rocks are highly abundant in organic matter,and the organic matter is type I II1 of high maturity,
and is good hydrocarbon source rock;the major organic matter type of Chang 6 hydrocarbon source rock is type III II2,
with type I II2 at a minor scale,and is medium-good hydrocarbon source rock with organic matter maturity high maturity;
the Chang4+5 hydrocarbon source rock is of medium high organic matter abundance,mainly with type III,and type II2 at
a minor scale,and is non-poor source rocks organic matter with low-maturity maturity. Crude oil properties of Chang 4+5
and Chang 6 hydrocarbon source rocks are all medium mature oil depositing in continental freshwater lake. Chang4+5,Chang
6 and Chang 7 hydrocarbon source rocks all contribute to the reservoir,among which the Chang 7 hydrocarbon source rocks
contribute the mostand the dark mudstone of Chang4+5 contribute less. The Chang 7 hydrocarbon source rocks found in the
study area expanded the distribution of hydrocarbon source rocks in Ordos Basin,and is of great significance for guiding
thefuther exploration of oilfield.

Key words: Yanchang Formation, hydrocarbon source rock, oil source correlation, Fu-Huang exploration area, Ordos Basin

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