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现代油藏工程技术的发展趋势是最大限度地提高油藏的最终采收率。从1990年海1块转注水开发时起,便注重分析研究影响其注水开发采收率的因素,并采取相应的措施,取得了以大于1.5%的采油速度高速、高效开发15年,标定采收率由原开发方案的23.5%提高到目前41.7%的效果。本文在前人工作的基础上,总结分析了影响海1块注水开发采收率的因素,对海1块及类似油田在“双高”期进一步提高采收率有一定的指导与借鉴意义。
The trend of modern reservoir engineering is to maximize the ultimate recovery of the reservoir. Since 1990, when the sea started to transfer 1 block of water, attention has been paid to the analysis of the factors that affect its waterflooding recovery and recovery and corresponding measures have been taken. With a production rate of over 1.5%, the project has been developed at a high speed and efficiency for 15 years. The yield has been increased from 23.5% of the original development plan to 41.7% now. Based on the previous work, this paper summarizes and analyzes the factors that affect the recovery of a seafloor waterflooding, and gives some guidance and reference to the further improvement of oil recovery in the “double high” stage of the sea and similar oilfields. significance.