西南石油大学学报(自然科学版) ›› 2007, Vol. 29 ›› Issue (6): 68-70.DOI: 10.3863/j.issn.1000-2634.2007.06.016

• 地质勘探 • 上一篇    下一篇

基于气测资料的储层含油气性灰色关联识别

连承波1 钟建华1 李汉林1 蔡福龙2 张军涛3   

  1. 1.中国石油大学地球资源与信息学院,山东 东营 257061;2.中国科学院地质与地球物理研究所,北京 100029; 3.南京大学地球科学系,江苏 南京210932
  • 收稿日期:2006-09-22 修回日期:1900-01-01 出版日期:2007-12-20 发布日期:2007-12-20
  • 通讯作者: 连承波

RECOGNITION OF OIL BEARING RESERVOIRS BASED ON GREY CORRELATION ANALYSIS OF GAS LOGGING DATA

LIAN Cheng-bo ZHONG Jian-hua LI Han-lin CAI Fu-long ZHANG Jun-tao   

  1. 1.College of Georesources and Information,China university of Petroleum,Dongying Shandong 257061,China;2.Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China;3.The Department of Earth Science,Nanjing University,Nanjing Jiangsu 210932,China
  • Received:2006-09-22 Revised:1900-01-01 Online:2007-12-20 Published:2007-12-20
  • Contact: LIAN Cheng-bo

摘要:

气测资料可以反映储层含油气性的好坏。选取储层含油气性构建参考序列,把储层对应的气测指标作为比较序列,利用均权灰色关联分析对不同气测指标与储层含油气性的相关分析,求得不同气测指标与储层含油气性的关联度,进而确定灰色关联分析模型中不同气测指标的权重。通过加权灰色关联分析,得到待识别储层与已知含油气性储层的关联度。建立适当的隶属函数,根据最大隶属度原则确定待判别储层的含油气性。实例分析表明,基于气测资料均权和加权灰色关联分析的储层含油气性模式识别法对数据量没有太高的要求,且计算方法简单,正判率高,实用性强。

关键词: 灰色关联分析, 储层含油气性, 气测资料, 模式识别, 权重

Abstract:

There is a noticeable correlation between gas logging data and oilbearing reservoirs. Reservoir oilgas potential is considered as reference series and gas logging parameters are taken as comparison series. Correlation degree between gas logging parameters and oilgas potential is obtained based on average weight grey correlation analysis. The weight of gas logging parameters in the weighted grey correlation analysis of tested reservoirs and unknown reservoirs are ascertained. Correlation degree between tested reservoirs and unknown reservoirs is obtained by weight grey correlation degree. Oilgas potential of unknown reservoirs is recognized in the light of maximum subject degree. The case study shows that the method is simple in calculation and the result is reliable, it is practicable for recognizing oilgas potential.

Key words: grey correlation analysis, oil gas potential, gas logging data, pattern recognition, weight

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