收稿日期: 2011-12-09
修回日期: 2012-01-19
网络出版日期: 2012-04-10
基金资助
国家“973”项目“煤层气开发储层动态地质效应”（编号:2009CB219604）资助.
Application of Grey Correlation Analysis Method in Reservoir Evaluation of Qingdong Sag
Received date: 2011-12-09
Revised date: 2012-01-19
Online published: 2012-04-10
在利用灰色关联度分析法对青东凹陷碎屑岩储层评价的基础上，通过介绍该方法的基本原理，对研究区9口关键井、21个储层单元的物性参数定量评价，确定储层评价指标的权系数，进而对储层进行综合定量评价。实例应用结果表明:该方法能避免用单因素评价储层中出现评价结果相互矛盾、不唯一等问题；以储层砂层组为单元进行评价，评价结果更加精细；储层分类结果与油田实际勘探开发方向一致，吻合度很高；用灰色关联分析法进行储层评价，可以综合考虑各个参与评价的参数，避免单一的、不精确的数字化处理，量化评价结果，提高储层综合评价的准确度，使结果更为科学、客观、合理。
涂乙，谢传礼，刘超，李佳佳 . 灰色关联分析法在青东凹陷储层评价中的应用[J]. 天然气地球科学, 2012 , 23(2) : 381 -386 . DOI: 10.11764/j.issn.1672-1926.2012.02.381
The paper introduces the basic principle of grey correlation analysis method and offers its application in the clastic reservoir of Qingdong sag.By adopting this methodology,we can quantitatively evaluate the physical parameters of 9 wells and 21 reservoir units and determine the weight coefficient of evaluation index.Thus,the comprehensive reservoir evaluation in this area is gotten.The result of the application shows as follows: firstly,this method avoids contradictory results and un-uniqueness which often occur when single index is chosen; and the evaluated result is highly consistent with that of onsite well production.Secondly,considering combination of all evaluation parameters involved,the precision of reservoir evaluation can be enhanced by digitizing the single or imprecise treatments and quantifying the evaluation results.Thus the application of grey correlation analysis method to evaluate the reservoir is reasonable and objective.
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