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.