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欢喜岭油田开发31年,已经步入油田开发中后期,部分油区油井含水较高,油井采收率部分达60%,而与之相对性的部分低渗透油藏普遍存在注水效果差、油井采收率的特点,如何有效提高低渗透油藏从而增强老区块采收率,成为欢喜岭油田人的首要攻关课题,欢喜岭采油厂采油作业二区与采油厂地质大队积极协调,在欢26杜创新实现了低渗透油藏的精细注水开发,使老区块重新焕发青春,区块产量由措施前29吨/日,提高到109吨/日,为低渗透油藏的再利用提供了重要论据。
The Huanxiling Oilfield has been developed for 31 years and has entered the middle and late stages of oilfield development. The oil-bearing wells in some oil-producing areas have a high water content and some oil recovery rates reach 60%. However, some low-permeability reservoirs with relative permeability generally have poor water- How to effectively improve the permeability of low permeability reservoirs to enhance the recovery rate of the old block, Huanxiling oilfield has become the primary research topic, Huanxiling oil production plant in the second and oil production plant geology brigade active coordination, in Huan 26 Du Chuangxin realized the fine waterflooding development of the low-permeability reservoirs and rejuvenated the old blocks. The output of the block was increased from 29 tons / day to 109 tons / day, providing important arguments for the reuse of low-permeability reservoirs .