Study On Polymer Flooding Methodology Of Economic Evaluation

With the majority of oil field coming into high water-content development period, using polymer flooding to be plateau production and to enhance oil output has become an important subject for petroleum industry to be solved urgently. In order to scientifically evaluate the polymer flooding economic rationality and to provide the scientific basis for stabilizing oil field productivity, economic evaluation methods of polymer flooding should be investigated.Current polymer flooding economic evaluation method for polymer flooding economic characteristics have not a very good expression, The paper carries on the consummation from three aspects to the current economic evaluation method. First, development index evaluation of polymer flooding development project are a foundation for evaluation analysis, reflect on the basis of previous studies on the prediction model of polymer flooding development index of fluid, yield and predict comprehensive water, this model is accurate prediction for the economic evaluation, provides data preparation. Secondly, to overcome the discounted cash flow method are introduced, real option method, based on the basic model option pricing, according to the characteristics of polymer flooding projects established polymer flooding economic development model, more accurate and reliable value to determine the actual value of the project. Finally, through the logical analysis, gray correlation analysis method and so on, comprehensive evaluation index is sifted out, comprehensive evaluation index system is established and applying the fuzzy comprehensive evaluation method to comprehensive evaluation technical and economic factors of the project of polymer flooding for the project decision-making is to providing a reliable basis.This set of polymer flooding economic evaluation methods of the basic framework, reliability and practicability is confirmed through case analysis. For field application provides some guidance.