Study On The Evaluation System Of Waterflooding Survey System

Water flooding to maintain pressure of formation is one of most important transitions in oilfield development history. It can improve the producing energy , raise oil recovery and ensure a relative high and stable oil production. Based on present situation of waterflooding system in Shengli oilfield, guided with oil&gas development theories and synthetical evaluation theories, this paper establishes an index evaluation system, it includes four aspects : present situations of waterflooding , situations of surface projects , producing techniques of injection wells and well treatments , waterflooding management and expenditure of waterflooding. Weight system has been built through combining with subjective and objective weighting. Evaluation system has been established through analysis of synthesis index , efficacy grade , TOPSIS and the primary component methods. And it taking the ShengTuo oilfield waterinjection development effect as an example, elaboratedthe evaluation system establishment process. It provides criteria for injection management and provides guide for analyzing different oil reservoir development in intermediary and later stage. It improves the waterflooding efficiency of different oil reservoir.