欢迎访问现代地质!

现代地质 ›› 2021, Vol. 35 ›› Issue (03): 871-882.DOI: 10.19657/j.geoscience.1000-8527.2021.056

• 石油地质学 • 上一篇    

河套盆地临河坳陷油气成藏过程解剖及勘探潜力分析

沈华1(), 刘震2,3(), 史原鹏1, 徐泽阳2,3, 李拥军4, 陈树光5, 王会来5, 王志成1, 王标4, 刘畅2,3   

  1. 1.中国石油华北油田公司 勘探事业部,河北 任丘 062550
    2.中国石油大学(北京) 油气资源与探测国家重点实验室,北京 102249
    3.中国石油大学(北京) 地球科学学院,北京 102249
    4.中国石油华北油田公司 巴彦勘探开发分公司,内蒙古 巴彦淖尔 015000
    5.中国石油华北油田公司 勘探开发研究院,河北 任丘 062550
  • 收稿日期:2021-02-21 修回日期:2021-03-20 出版日期:2021-06-23 发布日期:2021-06-24
  • 通讯作者: 刘震
  • 作者简介:刘 震,男,教授,博士生导师,1963年出生,石油地质学专业,主要从事石油地质学基础及应用研究。Email: liuzhenjr@163.com
    沈 华,男,教授级高级工程师,1970年出生,石油地质学专业,主要从事地震资料采集、设计、优化及油气勘探开发方面的研究与管理工作。Email: ktb_shenhua@petrochina.com.cn
  • 基金资助:
    中国石油天然气股份有限公司科技课题“河套盆地新区新领域勘探潜力与高效勘探关键技术研究”(2019D-0815);国家自然科学基金项目(41672124);中国石油“十三五”油气重大专项(2016ZX05047001-002-002)

Hydrocarbon Accumulation Process and Exploration Potential in Linhe Depression, Hetao Basin

SHEN Hua1(), LIU Zhen2,3(), SHI Yuanpeng1, XU Zeyang2,3, LI Yongjun4, CHEN Shuguang5, WANG Huilai5, WANG Zhicheng1, WANG Biao4, LIU Chang2,3   

  1. 1. Exploration Department of Huabei Oilfield Company, PetroChina, Renqiu,Hebei 062550,China
    2. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China
    3. College of Geosciences, China University of Petroleum, Beijing 102249, China
    4. Bayan Branch Company of Huabei Oilfield Company, PetroChina, Bayannur, Inner Mongolia 015000,China
    5. Exploration and Development Research Institute of Huabei Oilfield Company, PetroChina, Renqiu, Hebei 062550,China
  • Received:2021-02-21 Revised:2021-03-20 Online:2021-06-23 Published:2021-06-24
  • Contact: LIU Zhen

摘要:

河套盆地属于我国中西部地区中小型陆相含油气盆地,近期于临河坳陷西南部吉兰泰构造带发现亿吨级大油田。工区地质条件复杂且勘探程度低,油藏动态演化过程研究有待深化。针对吉西凸起带和中央断垒带已发现油藏,应用地质、地震和分析化验等资料,在石油地质综合分析的基础上,采用“九史”分析方法对油藏进行动态解剖,取得了以下三点认识:(1)油气晚期成藏并表现出“三晚”,即烃源岩晚期生烃、断裂晚期活动及油气晚期充注;(2)第四纪走滑活动影响油气富集,负花状构造不发育且晚期强烈反转地区有利于成藏;(3)优选出西南部凸起带和中央断垒带两大油气有利勘探区带。

关键词: 临河坳陷, 中新生代, 油藏特征, 烃源岩, 晚期成藏

Abstract:

The Hetao basin is a small-medium continental petroliferous basin in Midwest China. A million-ton oilfield was recently discovered in the Jilantai tectonic belt in the southwestern Linhe Depression. Due to the complex geological conditions and low degree of prospecting, the reservoir dynamic evolution is yet to be well understood. The reservoirs in the Jixi uplift belt and the central fault-barrier belt are taken as the main research target. Geological and seismic data were collected from comprehensive petroleum geological analysis, whilst dynamic analysis of the reservoir was performed by the “nine histories” analysis method. Three major findings are obtained: (1) the hydrocarbon accumulation timing was late and comprises three stages, i.e. the hydrocarbon generation, fault activity, and oil filling; (2) Quaternary strike-slip tectonism affected the oil accumulation. Negative flower-like structure was not developed, and the area with strong tectonic inversion in the late period is favorable for hydrocarbon accumulation. Meanwhile, the area with intense uplift and minor negative flowery structure is favorable for oil accumulation; (3) the southwest uplift belt and the central fault-barrier belt are selected as favorable exploration zone.

Key words: Linhe depression, Meso-Cenozoic, reservoir characteristics, hydrocarbon source rocks, late-stage accumulation

中图分类号: