二类油层聚驱油井模糊分类方法及精细评价研究

综合考虑二类油层的地质特点,以萨尔图油田北二区西部西块为例,利用模糊综合评判法,选择能够反映砂体沉积类型、油层发育状况等因素的静态指标将油井进行分类并评价了相关开发指标.在日常动态分析工程中,该油井分类方法能有针对性、有侧重点的对油井进行分类管理和综合调整挖潜,有助于对油井进行产能评价及改善聚驱开发效果分析,利于提高油田整体开发的经济效益.油井的分类方法同样可以在其他区块中综合应用.

Research on Wells Classification Method of Second Class Reservoir and Development Indicator Assessment

According to comprehensive consideration of the geological characteristics of second class reservoir,take B2XX block of Daqing oilfield for instance,by using fuzzy comprehensive judgment,we can classify wells by some indicators which can reflect the type of sand body deposition,reservoir development status.During the daily dynamic analysis projects, this method can effectively achieve well fine-classification which can be beneficial for improving the development of polymer flooding and enhancing the overall economic development of oil field.This wells classification method of second class reservoir is available for other blocks.