Risk Assessment and Maintenance Cost Optimization of Undersea Oil and Gas Pipelines

It is more and more important to make analysis and study of the relations between risk assessment of pipelines and maintenance cost thanks to the current stern situation in safety of oil and gas pipelines. It is of great urgency to establish an assessment and management system for integrity of undersea oil and gas pipelines to ensure safety of operation and minimize the possibility for accidents. This article makes briefings about the basic conceptions of risk assessment, elaborates the implementation process for risk assessment, lists the matrix table for judgment of the risks through quantitative calculation of the failure risks, and draws the conclusion that purposely cost management can effectively lower the cost for operation and maintenance of pipelines. Optimization of pipeline operation and maintenance aims at maximize the safety of pipelines at the possible lowest cost. The trend and distribution of cost for pipeline operation and maintenance are listed in the form of risk assessment cost table. Managers can make operation and maintenance of pipelines cost-effective on the basis of the table.