Provide a model for managing claims regarding the PMBOK standard

Iran is very rich in oil and gas, which why the government investing billions of dollars every year gas facilities to improve country. The refinery construction industry are complex involves multidisciplinary contributors. In this environment, many changes claims appear. Changes commonly considered negative events, thus, should be kept away from project. With considering concept, paper presents results a study types causes project Persian Gulf Star Gas Condensate Refinery Bandar Abbas. data were analyzed consequences analysis along with advice on how reduce/prevent then presented.