岩性油气藏 ›› 2019, Vol. 31 ›› Issue (3): 20–26.doi: 10.12108/yxyqc.20190303

• 油气地质 • 上一篇    下一篇

鄂尔多斯盆地丰富川地区延长组流体包裹体特征及油气成藏期次

唐建云1,2, 张刚3, 史政4, 章星2, 陈玉宝5   

  1. 1. 克拉玛依职业技术学院, 新疆 克拉玛依 834000;
    2. 中国石油大学(北京)克拉玛依校区, 新疆 克拉玛依 834000;
    3. 延长油田股份有限公司定边采油厂, 陕西 榆林 719000;
    4. 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;
    5. 延长油田股份有限公司, 陕西 延安 716005
  • 收稿日期:2018-12-17 修回日期:2019-02-19 出版日期:2019-05-21 发布日期:2019-05-06
  • 作者简介:唐建云(1980-),男,博士,副教授,主要从事油气成藏机理与分布规律及油气资源评价等方面的教学与研究工作。地址:(834000)新疆克拉玛依市大学城安定路355号。Email:tangjy0808@163.com。
  • 基金资助:
    新疆维吾尔自治区自然科学基金资助项目“吉木萨尔致密油渗流机理特征及开发方式基础实验研究”（编号：2017D01B56）资助

Characteristics of fluid inclusions and hydrocarbon accumulation stages of Yanchang Formation in Fengfuchuan area,Ordos Basin

TANG Jianyun1,2, ZHANG Gang3, SHI Zheng4, ZHANG Xing2, CHEN Yubao5   

  1. 1. Karamay Vocational and Technical College, Karamay 834000, Xinjiang, China;
    2. China University of Petroleum(Beijing) at Karamay, Karamay 834000, Xinjiang, China;
    3. Dingbian Oil Production Plant, Yanchang Petroleum Co., Ltd., Yulin 719000, Shaanxi, China;
    4. Wuxi Institute of Petroleum Geology, Sinopec Research Institute of Petroleum Exploration and Production, Wuxi 214126, Jiangsu, China;
    5. Yanchang Petroleum Co., Ltd., Yan'an 716005, Shaanxi, China
  • Received:2018-12-17 Revised:2019-02-19 Online:2019-05-21 Published:2019-05-06

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摘要： 为研究鄂尔多斯盆地丰富川地区延长组长2和长6储层砂岩中流体包裹体特征及油气成藏期次，开展了荧光显微镜鉴定和冷热台测温等实验分析，并应用包裹体均一温度与埋藏史和热演化史相结合，判断目的层的油气充注时间。结果表明：①研究区流体包裹体主要包括盐水包裹体和含液态烃包裹体；②长6流体包裹体均一温度为100~120℃，长2流体包裹体均一温度为90~110℃，流体包裹体捕获时地层处于中成岩A期，盐度小于10.5‰，属于中等盐度；③长2和长6均发生过一期油气充注，为早白垩世。长2油气充注时间为距今115~100 Ma，长6油气充注时间为距今120~105 Ma。该研究成果证实了鄂尔多斯盆地丰富川地区延长组为连续充注型油气藏。

关键词: 流体包裹体, 油气成藏, 延长组, 丰富川地区, 鄂尔多斯盆地

Abstract: In order to determine hydrocarbon accumulation period and characteristics of oil-gas fluid inclusion in Chang 2 and Chang 6 reservoir in Fengfuchuan area of Ordos Basin, fluorescence microscope identification and hot and cold temperature experimental analysis were carried out, and the homogenization temperature of inclusions and burial history and thermal evolution history were applied to determine the oil and gas filling time of the target zone.The results show that:(1) fluid inclusions in the study area mainly consist of saline inclusions and liquid hydrocarbon inclusions; (2) the homogenization temperatures of fluid inclusions in Chang 6 and Chang 2 reservoir are 100-120℃ and 90-110℃, respectively, and the stratum was in diagenetic A stage when fluid inclusions were captured, with salinity less than 10.5‰, which belonged to moderate salinity; (3) both Chang 2 and Chang 6 were filled with oil and gas in the first stage, which was Early cretaceous. The oil and gas filling time of Chang 2 is 115-100 Ma, and that of Chang 6 is 120-105 Ma. The research results confirm that Yanchang Formation in Fengfuchuan area is a continuous filling reservoir.

Key words: fluid inclusion, hydrocarbon accumulation, Yanchang Formation, Fengfuchuan area, Ordos Basin

中图分类号: 

  • TE122.1
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