摘要
针对目前灰色关联分析方法在评价岩性、物性、含油性以及含油面积等地质模型中有时存在评价结果分辨率不高的问题。基于信息论中Jaynes最大信息熵原理和灰色关联度的定义,构造目标函数,运用拉格朗日乘数法,建立了一种新的灰色精细评价模型。结合实例说明了模型的具体应用,并与原灰色关联分析方法进行了对比,结果基本一致,分辨率明显提高。该模型数学推导严谨,可靠性高且灵敏度较高。
The system of oil geological is a gray system due to its partially uncertainties.There exist some kinds of gray systems for assessment of oil geological.However,the resolutions are low in the results of the present methods.Based on the Jaynes maximum entropy theory,a new model for assessing oil geological is put forward in this paper.A case study is given by using this model.The result compared with those of the existed gray approach shows that the model established in this paper is not only string derived,but also has higher resolution and sensitivity and reliability.
出处
《西部探矿工程》
CAS
2007年第8期45-47,共3页
West-China Exploration Engineering
关键词
熵
关联分析
评价
entropy
coefficient of correlation
assessment
