Study On EEDI And Evaluation Index System For Self-elevating Drilling Unit

Currently, energy-saving is generally becoming the focus of attention of all walks of life, low-carbon economy has become a global consensus. In order to control and reduce the shipping industry and shipbuilding industry greenhouse gas emissions, the International Maritime Organization IMO continuing to promote the reduction process. On the MEPC62nd session in2011, IMO formally adopted the two mandatory energy efficiency rules EEDI and SEEMP, will have a definite impact on the global shipping industry and shipbuilding industry. As the EEDI formula is not suitable for offshore drilling platforms which are accounted a large proportion of marine engineering equipment, but looking for the strength and determination of IMO promote the EEDI, the field of marine equipment can’t spared, we should do the research and response measures in advance.In this paper, study focused on the energy efficiency of the self-elevating drilling unit. First reference to the ship EEDI formula, introduce the offshore platform EEDI formula, using the main parameters on behalf of CO2emission and social benefits. And then collected the world’s existing self-elevating unit fleet data, calculated the EEDI value and regression analysis the results, get the reference line formula.In order to improve the energy efficiency level of the self-elevating drilling unit, achieve the green development goals of low power, low emissions and safe, it is necessary to introduce new equipments and new energy-saving technologies. At the same time of energy-saving, economic and social benefits can also be improved.In this paper the evaluation criteria system for self-elevating unit are proposed. Based on the gray relation analysis(GRA) and the analysis hierarchy process(AHP), analysis the evaluation index on behalf of the technology advancement, economic rationality and environment coordination, ultimately to judge the merits of self-elevating drilling unit performance.Study on the energy efficiency of offshore drilling platform will contribute to the research, extension and application of low-carbon technologies on offshore platform. Control and reduce greenhouse gas emission and energy-saving of offshore drilling platforms has some practical value and strategic significance. This paper could provide a reference for offshore drilling platform design and construction.