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延长油田是陆上典型的低渗透油藏,目前低渗透储量已占到80%以上,绝大多数是渗透率在1.0×10-3μm2左右的特低渗储层,近年来针对这类特殊储层,开展了诸如裂缝性油藏井网优化研究、超前注水攻关、油层解堵试验等一系列提高采收率的技术尝试,取得了一定的经验或认识,对同类型低渗透油田的开发具有一定的借鉴或指导作用。
Yanchang Oilfield is a typical low permeability reservoir onshore. At present, the low permeability reservoir accounts for more than 80% of the total. The vast majority of these reservoirs are ultra low permeability reservoirs with a permeability of about 1.0 × 10-3μm2. In recent years, Layer, carried out a series of technical attempts to enhance oil recovery such as fractured optimization of wellbore research, advanced injection research, reservoir plugging test and gained some experience or understanding of the same type of low permeability oilfield development has Some reference or guidance.