For offshore oilfields with the associated gas development project, the key study contents of the main power station scheme optimization in initial phase include: combined with oil deposit data, according to designed power load & thermal load, mature and reliable power stations are selected through optimizing allocation rationally and considering operation management; utilizing the associated gas adequately, furthest reducing fuel oil consumption, operation cost and investment cost, the eco-nomic benefit of oilfield overall development can be improved.Taking a new project in the Bohai oil-field as an example and using mixing power supply mode,the allocation of common gas generator units and oil generator units are optimized.It is the first time to conduct application study the mixing power supply mode of the three-fuel reciprocating generating set with power of more than 7 MW,enhancing the adaptability of the fuel. Meanwhile, the new mode selection solution of offshore oilfield main power station with associated gas is proposed, which provides significant reference and guide for mode selection optimization in follow-up similar projects in Bohai Oilfield.%对于自产伴生气的海上油田开发项目,在前期阶段主电站方案优选时重点研究的内容包括:结合油藏指标,根据设计需求电负荷和热负荷,通过合理优化配置,兼顾操作管理,选用技术成熟可靠的发电机组;充分利用自产伴生气,最大限度地减少燃料油消耗,节约操作成本,降低投资,提高油田整体开发收益.以渤海油田某项目为例,采用混合电站模式,优化各常用燃气机型与燃油机组的配置,首次对现场功率为7 MW以上的三燃料往复式发电机组混合供电方案进行应用研究,以增强燃料适应性,同时提出了自产伴生气的海上油田主电站选型的新思路,为渤海油田后续类似项目优化机型配置提供了良好的借鉴和指导.
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