Assessment Of Investment Environment For Overseas Oil And Gas Exploration And Development Based On Combinational Evaluation Method

With the rapid development of economy,the contradiction between oil and gas supply and demand caused by the rising energy demand in China is increasingly prominent.In order to ensure the stable supply of domestic energy,China's petroleum enterprises began to participate in overseas oil and gas project investment since the 1990 s.One of the important tasks is to comprehensively evaluate the investment environment of the project and provide decision-making reference for overseas oil and gas exploration and development investment.At present,the commonly used quantitative methods for evaluating the investment environment of oil and gas exploration and development have certain limitations,which cannot be evaluated from multiple perspectives.There may be inconsistencies in the evaluation results for the same object.Taking the investment environment of overseas oil and gas exploration and development as the research object,this paper systematically analyzes the influencing factors of the investment environment of overseas oil and gas exploration and development,and constructs the evaluation model.Then it uses the new evaluation model to analyze the investment environment for oil and gas exploration and development of five Central Asian countries.The investment environment of gas exploration and development is proved to be more objective.Based on the relevant research results at home and abroad,this paper puts forward two innovations.First,based on the location advantage theory and the complex system theory,it analyzes the main influencing factors of overseas oil and gas exploration and development investment environment,and designs an evaluation system composed of six first-class indicators and22 second-class indicators in combination with the characteristics of overseas oil and gas exploration and development.Secondly,based on the trend of combination of investment environment evaluation methods,the advantages and disadvantages of the commonly used quantitative evaluation methods are analyzed and selected,the AHP fuzzy comprehensive evaluation method,principal component analysis method and entropy weight method are determined as the methods to be combined,and the model of combinational evaluation method based on the improved fuzzy borda is constructed to evaluate the investment environment of overseas oil and gas exploration and development.The model can combine the value and rank of evaluation of different multi index comprehensive evaluation methods and test the consistency of evaluation value and evaluation rank before and after the combination,which can improve the utilization rate of evaluation results and the reliability of comprehensive evaluation results.