二连油田层间矛盾治理工艺现状及发展趋势

二连油田经过多年的开发,层间、层内矛盾突出,对油田的持续发展构成了很大威胁.而现有的分层治理工艺,不能完全满足油田开发的需要.对二连油田现有分注、调剖、卡堵水各项分层治理工艺的适应性进行了分析,总结了各项工艺的优缺点,提出二连油田的分注工艺应发展能够满足细分注水层段和减少投捞测试工作量的桥式偏心分注和同心集成分注工艺.调剖工艺根据层间和层内矛盾的不同选择不同的堵剂,卡堵水要重点研究适应二连油田的化学堵剂,完善现有的机械卡水工艺.通过不断改进和完善现有工艺,从而加强二连油田的层间矛盾治理工作,提高油田开发水平.

Present situation and tendency for technics to handle conflicts between layers in Erlian Oilfield

The conflicts within layer and between layers are prominent in Erlian Oilfield after overyear development, which will affect the sustainable development of oilfield. The present separated layer handling technics can't meet the requirement of oilfield development. By analyzing the adaptiveness of current separated layer handling technics, such as separate layer water injection, profile control and plugging, the advantages and disadvantages of these methods were summarized. Eccentric separate layer water injection with bridge passage and concentric integration layer-separation were selected as the separate layer water injection technics for Erlian Oilfield. Different blocking agents were selected for profile control technics, and water plugging should develop chemical agents adaptive for Erlian Oilfield and improve the mechanical plugging technics. By improving and bettering the current technics, conflicts within layer and between layers in Erlian Oilfield can be handled with better development effects.