新疆石油地质

新疆石油地质 ›› 2000, Vol. 21 ›› Issue (1): 69-71.

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气藏流体判识方法──以长庆气田为例

王彩丽, 孙小平, 张彦琳, 王明贤   

  1. 长庆石油勘探局勘探开发研究院 西安710021
  • 收稿日期:1999-06-28 出版日期:2000-01-01 发布日期:2021-01-15
  • 作者简介:王彩丽(1963-),女,甘肃会宁人,天然气开发地质,工程师。

An Approach to Discrimination of Gas Reservoir Fluid- An example from Changqing Gas Field

Wang Caili, Sun Xiaoping, Zhang Yanlin, Wang Mingxian   

  1. Female, Engineer, Reservoir Engineering, Research Institute of Exploration and Development, Changqing Petroleum Administration Bureau, Xian 710021
  • Received:1999-06-28 Online:2000-01-01 Published:2021-01-15

摘要： 长庆气田靖边区马五1储集层中地层水的分布与一般油气藏完全不同,既非边水,也非底水,也不同于缝洞系统中的气、水分布特征。区域“相对富水区”的形成主要受区域构造和储集层非均质性的影响。根据马五1储集层的测井、分层测试及试气资料,利用常规测井判识方法和多项式自组织网络方法,分别建立了出水层判识标准和气层、含气层＋干层、气水同层＋水层的判别式及判别条件。其判识效果良好,工业性气层判别符合率达97％．

关键词: 流体成分, 判断, 多项式, 网络, 方法, 长庆气田

Abstract: The formation water distribution of Mawu No.1 reservoir in Jingbian area, Changqing gas field, is of completely different characteristics from common oil/gas reservoirs due to non-edge water and non-bottom water and is different from those of gas and water in fracture-cavity system. The regional"relative water-rich area” is formed mainly by the effects of regional structure and reservoir heterogeneity. According to the well log, separate zone testing and gas test data and using conventional well log discriminant method and polynomial self- network approach, producing water zone discriminant standard and gas zone,gas-bearing bed and dry sand as well as gas-water layer discriminants and conditions are given respectively. The coincidence rate of commercial gas zones reaches 97%.

Key words: Fluid component, Decision, Polynomial, Network, Method, Changqing gas field