Optimization of Scale Prevention Technology in Oilfield Based on AHP-EWM
There is a lack of a scientific and effective evaluation system for the selection of anti-scaling technology in various oilfield production links in China.To solve this problem,through investigation,comparison,analysis,and screening,a judgment index of anti-scaling technology level is constructed from five dimensions of safety,applicability,technical difficulty,efficiency,and economy.There are four levels of anti-scaling technology evaluation:basic anti-scaling,standard anti-scaling,enhanced anti-scaling,and comprehensive anti-scaling.The Analytic Hierarchy Process(AHP)+ Entropy Weight Method(EWM)is used to build the evaluation model of anti-scaling technology selection.The indexes influencing the selection of anti-scaling technology are sorted by importance,and the anti-scaling level is evaluated.The final anti-scaling scheme of an oilfield is determined by the evaluation re-sults.Finally,the accuracy,feasibility,and reliability of the method are validated by specific anti-scal-ing cases.The results show that the anti-scaling technology optimization system can effectively judge the anti-scaling level of different anti-scaling technologies for the target oilfield,and provide a theoretical basis for the oilfield anti-scaling technology optimization process.
NETL
NSTL
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