Offshore Structure Decommissioning Model: A Proposal Based on Costs And Risk Management in Brazil

Objective: To develop a business model for the decommissioning of offshore oil and gas units in Brazil, aligned with global best practices, considering our peculiarities. It uses an integrated approach that includes governance, circular economy, social responsibility, innovative technologies, environmental protection and legal compliance for offshore operations in Brazil. Method: The research adopted a qualitative approach, starting with a systematic review of the literature, followed by the identification of the main models and methodologies applicable to decommissioning. The essential steps for decommissioning were identified, and a comparative analysis of the different business models was made. Results and Discussion: The proposed model contemplates legal compliance, environmental safety and social responsibility, promoting transparency, sustainability, the circular economy and collaboration with civil society. The model contains the external contingencies that influence decommissioning and the Key Characteristics that integrate the best practices and technologies that promote operational efficiency. Research Implications: The main practical contribution is the proposal of a use-oriented solution, offering an adapted and adjusted model for the decommissioning of large structures at sea, observing the regulations established in Brazil. For the literature, the research sheds light on an issue that is little debated in academic circles, but much discussed in business circles. Originality/Value: The study contributes with an innovative approach by including risk management practices in a decommissioning model. It also contributes in a practical way by presenting the stages of decommissioning, combined with the professional practice of the offshore sector, which values ​​safety, experience and operational efficiency.