Ansai Oilfield Old Oil Field Maintenance Project Management System Reengineering Research

Oil as a non renewable scarce resources, not only related to a country’s economic security, but also related to national political、military security, it plays a decisive role in the national economy. With China’s rapid economic growth, the demand for oil is increasing year by year, and the current domestic oil field has already entered the development stage, as the production is more difficulty, the dependence on foreign oil will be increasing year by year.Ansai oil field has been developed for more than30years, oilfield development has entered the midanaphase, comprehensive water comprehensive water is rising, oil production is falling. At the same time, it also faces a serious shortage of oil reserves、oilfield aging infrastructure problems. In order to keep the oilfield long-term stable and sustainable development, it needs to invest some money to maintain the old oil field every year, in order to realize the sustainable and stable development of old oil fields and benefit, we must pay attention to the old oil field maintenance project of input-output analysis.Oil field maintenance project management is a complicated system engineering, it needs many construction teams、many professional disciplines、a variety of technologies, it is very important to chose a scientific and reasonable quality project management method, if we want to efficient completion of maintenance projects of oilfield. The study of the oil field actual situation as the subject, using economics、management science、project management related theory, using comparative analysis、empirical analysis、comparative research methods, the author will carry on the analysis to the Ansai oilfield old field maintenance operation situation and restriction factors of project management, he will find out the existing problems in the management of the project. At the same time, he will learn from the advanced management system and project management mode, setting up based on the status of oil mechanism, this article establishes a suitable for Ansai oilfield management system, the system of the oil field maintenance engineering construction and supervision of project phase separation, It can realize different departments of the "responsibility、right、benefit", and they are the unity of opposites. In the future, Ansai oilfield maintenance project management system provides reference for the stable stage of oilfield of Changqing oilfield.