Considerations for the Decommissioning of an Offshore Oil and Gas Platform

Platform decommissioning is the process of ending the exploration, extraction, drilling, etc. operations in a marine platform and returning that part of the sea to its natural condition. Different countries of the world have adopted different approaches and frameworks for environmental impact management and platform decommissioning, but the lack of a suitable legal framework as a guide for this field is felt in Iran. The purpose of this study is to review the necessary approaches to improve safety and environmental protection.Therefore, first, the most important international regulations for offshore decommissioning are reviewed and then information related to the methods, techniques and engineering considerations related to the decommissioning assets has been prepared, which includes all aspects of the platform installation including from planning to cleaning of the site, Then the Decommissioning cost is briefly explained. As a case study, considerations and approaches for a platform located in the Persian Gulf have been carried out and decommissioning techniques have been selected. At the end, the powerful internal organizations of this field are examined