Research on Evaluation System of Water flooding Development Effect Based on Geological Classification

Abstract

Keywords: flooding development, effective evaluation, factors of geologic feature. objective weight, fuzzy criterion, quantitative evaluation. Abstract. With the better understanding of oilfield and the adjustment of the development modes, real water-flooding development effectiveness of reservoir depends on its basic geological condition, as well as the level of development technology and human factors. It is unable to judge the effect of development accurately by contrasting among one or several indexes directly. This paper will take Xingnan Oilfield as an example, building evaluation index system based on objective weight method combined by fuzzy comprehensive evaluation, under the background of geological settings and developing course of the oilfield. It will first evaluate the geological classification and then developing effective classification by judging the effect of artificial water drive quantitatively and building a kind of new evaluation method of water-flooding development effectiveness based on geological classification.