Classification And Evaluation Of The Development Effect Of The Oil Field In The Eastern Part Of Changyuan

Based on the five oil field’s actual production dynamic data and static data as the foundation, we study the change law of pressure field, water cut changing law and law of production decline, the integrated use of experience formula and law of water drive curve, relative permeability curve, such as reservoir engineering method, evaluated the oil field water flooding recovery degree, the moisture content change, using water injection effect, according to the principle of hierarchy analysis and fuzzy comprehensive evaluation, summed up the various fields currently existing in the development process of the six main contradictions, clear points oilfield development potential, provide guidance for adjusting oilfield development.This article through the analysis of the system of oilfield development system, determines the objective, comprehensive and comprehensive evaluation index system for easy operation. On the basis of primary research, oilfield development effect evaluation index, the use of multiple correlation analysis further optimization and development effect evaluation index to get the final index between relatively independent evaluation index system, select reasonable development effect evaluation index system. Collect related oil and gas industry standards and oilfield units related to the enterprise standard as reference, combining with the actual situation of oilfield is not adapt to reasonable standards for correction. Finally, through the method of fuzzy comprehensive evaluation to classify development effect evaluation research.In this paper, the optimization research on numerical simulation of typical in sedimentary unit to simulate layer,three typical dimensional geological model is established, and history matching and the water flooding well pattern under the condition of moisture content, oil production, tired oil production and recovery factor of dynamic indicators. On the basis of reservoir modeling and history matching, three kinds of evaluation criteria were verified by three block’s development effect.