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近年来,特低渗透油藏的开发已逐步成为胡尖山油田原油生产稳定发展的主要潜力,但其物性差、产量低、多属岩性油藏、天然能量匮乏,故提高此类油藏的注水开发水平和相关经济效益,已成为胡尖山油田持续发展的关键技术,胡尖山油田的注水开发经历了注水开发试验、大规模注水开发、注水调整、精细注水四个阶段,注水开发后,随着动态的变化,采取了多种注水调整方式,取得了一定的效果,但后期又有新的矛盾不断出现,经过系统总结发现,不同的注采区块也具有一定的共性,即可以用驱动类型、开发阶段、渗流特征进行划分归类,分成不同的注水单元,这就逐步形成了精细注水技术。
In recent years, the development of ultra-low permeability reservoirs has gradually become the major potential for the stable development of crude oil production in Hujiashan Oilfield. However, due to its poor properties and low production, it is mostly a lithologic oil reservoir with a lack of natural energy. Therefore, Water injection development level and related economic benefits have become the key technologies for the sustainable development of Hujian Mountain oilfield. The water injection development of Hujian Mountain Oilfield has undergone four stages of water injection development test, large-scale water injection development, water injection adjustment and fine water injection. After water injection development, With the dynamic changes, a variety of waterflooding adjustment methods have been adopted, and some results have been achieved, but new contradictions have emerged continuously in the late period. After the system summary, different injection and production blocks have certain commonalities, that is, they can be driven Type, development stage, seepage characteristics of the classification, divided into different water injection unit, which gradually formed a fine water injection technology.