中国石油大学学报（自然科学版）2012，Vol.36Issue(4)：66-71,6.DOI:10.3969/j.issn.1673-5005.2012.04.012
成因机制控制下低对比度油气层研究方法
Research method of low contrast hydrocarbon reservoir under control of origin mechanism
摘要
Abstract
In order to accurately identify the mathematical difference between the low contrast hydrocarbon reservoir and other reservoirs and precisely discover the low contrast hydrocarbon reservoir, the feature selection and classification models were introduced. They were applied 1o exploring the particularity of low contrast hydrocarbon reservoir. This method doesn't require the calculated reservoir parameters to be fully equivalent to the practical reservoir characteristics. It will be workable as long as the numerical differences among different types of fluids can be depicted- Taking the productivity forecast of ultra-low permeability oil layer in the Longdong region of Ordos Basin as an example, its whole process was elaborated. The productivity model was utilized to predict the fracturing productivities of 77 new wells. The mean absolute error is 0. 95 t/d and the mean relative error is 9. 49%. And the accuracy rale is satisfactory. The theoretical model of reservoir characterizatiun parameters should be' improved, while the applicability and logicality of the mathematical analysis method should also be given enough attention. Moreover, the effeclive combination of the traditional methods and mathematical models can avoid the simplification and modeling of method, and be conducive to the solution of difficult problems in the area of formation evaluation.关键词
储层评价/低对比度油气层/成因机制/数学模型/特征选择/分类算法/油井产能/预测Key words
reservoir evaluation/ low contrast hydrocarbon reservoir/ origin mechanism/ mathematical models/ feature selection/ classification algorithm/ oil well production/ forecasting分类
能源科技引用本文复制引用
李雄炎,李洪奇,周金昱,龚敏,张少华..成因机制控制下低对比度油气层研究方法[J].中国石油大学学报（自然科学版）,2012,36(4):66-71,6.基金项目
国家“863”高技术研究发展计划项目(2009AA062802)和国家科技重大专项项目(2011ZX05030) （2009AA062802）
