吉林大学学报(地球科学版) ›› 2017, Vol. 47 ›› Issue (6): 1668-1677.doi: 10.13278/j.cnki.jjuese.201706106

• 地质与资源 • 上一篇    下一篇

基于空间网格插值的重油油藏资源量计算方法——以扎格罗斯白垩系重油层资源评价为例

刘祚冬1, 王红军2, 马锋1, 吴珍珍1, 杜商3, 汪永华1   

  1. 1. 中国石油勘探开发研究院全球资源与规划研究所, 北京 100083;
    2. 中国石油勘探开发研究院亚太研究所, 北京 100083;
    3. 吉林大学地球科学学院, 长春 130061
  • 收稿日期:2017-04-09 出版日期:2017-11-26 发布日期:2017-11-26
  • 作者简介:刘祚冬(1984-),女,工程师,主要从事油气资源评价、盆地评价方面等研究工作,E-mail:liuzd1223@petrochina.com.cn
  • 基金资助:
    国家"十二·五"科技重大专项项目（2011ZX05028-002）；中国石油天然气股份有限公司重大科技专项项目（2012E-0501）

Resource Assessment of Heavy Oil Potential Based on Spatial Grid Interpolation Method:A Case Study of Cretaceous Heavy-Oil Deposits in Zagros Fold Belt

Liu Zuodong1, Wang Hongjun2, Ma Feng1, Wu Zhenzhen1, Du Shang3, Wang Yonghua1   

  1. 1. Department of Global Resources Assessment and Exploration Plan, Petrochina Research Institute of Exploration & Development, Beijing 100083, China;
    2. Department of Asia-Pacific E & P, Petrochina Research Institute of Exploration & Development, Beijing 100083, China;
    3. College of Earth Science, Jilin University, Changchun 130061, China
  • Received:2017-04-09 Online:2017-11-26 Published:2017-11-26
  • Supported by:
    Supported by Key Projects in the National Science & Technology Pillar Program During the Twelfth Five-Year Plan Period (2011ZX05028-002) and Key Project of CNPC Science & Technology (2012E-0501)

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摘要： 重油具有黏度大、大规模连续聚集、储层非均质性强、难于开采等特征，利用传统的体积法评价其资源潜力无法揭示重油资源在空间三维尺度上的富集差异性或预测"甜点区"的分布。空间网格插值法基于地理信息系统技术，以成藏组合为基本评价单元，划定各单元分布面积，统计和分析每个成藏组合储层的厚度、含油饱和度、孔隙度、采收率4个关键参数的空间分布规律，并根据实际情况选择反距离加权插值、克里金插值等方法进行插值，实现关键参数网格图的空间叠加计算，最终计算出每个成藏组合的重油资源丰度图，定量表征重油资源的空间分布，厘定重油"甜点区"。将该方法应用于中东扎格罗斯褶皱带重油资源潜力评价，揭示三叠系-侏罗系Butmah成藏组合、侏罗系成藏组合、白垩系成藏组合以及第三系成藏组合总可采资源潜力为140亿t。其中，未来有利勘探目标为白垩系成藏组合，可采资源量为85亿t。初步预测"甜点区"位于盆地西南部。

关键词: 重油, 资源评价方法, 成藏组合, 空间网格插值, 扎格罗斯褶皱带, 非常规

Abstract: Heavy oil is characterized by its large viscosity, large-scale continuous accumulation, strong reservoir heterogeneity,and difficult for exploration etc. It is impossible to reveal the difference of heavy oil enrichment in 3D space, and to predict the distribution of the "sweet spots" by using the traditional volumetric method. Based on the geographic information technology,the spatial interpolation method is to take play as a basic evaluation unit to demarcate the distribution area of each unit so as to count and analyze the spatial distribution patterns of the four key parameters incl. reservoir thickness, oil saturation, porosity, and the recovery rate; and then based on actual situation to further select suitable interpolation methods (inverse distance weighted interpolation, Kriging interpolation method etc.), to achieve spatial superposition calculation of the grid maps of the key parameters, and finally to calculate the abundance map of heavy oil of each reservoir formation. This method can quantitatively characterize the spatial distribution of heavy oil resources, and confirm the "sweet spots" of heavy oil. We applied this method to evaluate the potential of heavy oil in the Zagros fold belt in Middle East. According to the evaluation results, the total recoverable heavy oil resources of the four plays (Triassic-Jurassic Butmah, Jurassic, Cretaceous and Tertiary) reaches about 14×109 t. Among them, the Cretaceous play is the favorable exploration target in the future with 8.5×109 t of recoverable heavy oil resources. According to an initial prediction, the "sweet spot" is located at the southwest of the basin.

Key words: heavy oil, resource assessment methodologies, play, interpolation, Zagros fold belt, unconventional

中图分类号: 

  • P618.13
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