The Design Optimization Of Ballast System For Self-elevated Mobile Offshore Drilling Unit

Now with the global oil prices at rock bottom,international oil prices into shock stage,the ocean engineering industry has entered a true "winter".Shipyard are do our best to reduce the loss from all over the world,and even some shipyard in opening up new market response to the current bad market conditions.Domestic Marine engineering manufacturing industry started late,and foreign companies in the Marine engineering industry chain owners a lot of valuable experience.Learn foreign advanced technology,and carries on the research,at the same time,the paper summarizes and analyzes the design experience of the domestic shipyard,combining foreign experience and domestic experience,improve the level of the domestic Marine industry,the domestic Marine engineering enterprise occupies a place in the global market.Ballast system of offshore platform is important to piping system,the study of the system is one of key technology platform.Ballast system is in order to keep the platform stability,avoid extreme harsh environmental conditions cause platform capsized and damage.Jack-up platform of the ballast system is made up of ballast system,exhaust overboard and stripping system.Have a project in this paper,based on the design experience,in the platform on the basis of overall performance,according to the requirements of classification rules and specifications,and fluid mechanics theory,on the basis of the ballast system design for further optimization design.Pipe diameter calculation and selection of ballast system,remote control valves,valve type,construction and so on has carried on the detailed analysis and comprehensive comparison.Material selection of ballast system,by weight,price,anticorrosion,attachment material specification requirements,the construction difficulty level,these aspects carries on the detailed analysis and research,by analyzing the relevant data,contrast after choose the best material.This paper effectively completed the design of jack-up drilling platform ballast system optimization,to project the ballast system design in the future to have certain reference significance.