摘要：Sandstone oil reservoirs are usually developed by water injection, and injection-production balance is the core issue. Based on this, combining the specific reservoir properties, flooding conditions, and mining conditions to determine a reasonable water injection volume is the key to achieving efficient and sustainable development of the oil reservoir. In this paper, the gray split analysis method is used to construct the vertical split coefficient. We regard oil and water wells as a unified oil-water movement system and adopt a combination of dynamic and static methods to comprehensively consider the oil layer conditions and development conditions of water injection wells and production wells that they affect. This method overcomes the shortcomings of inaccurate stratified fluid volume in split injection production wells using formation coefficients. Based on the production data in XB area and the geological data of the small interval of the injection well, the split coefficient and the interval injection volume are calculated to determine the reasonable interlayer water injection volume. Eclipse numerical simulation software is used to build the actual model and production simulation of the XB block. The results show that the proposed optimization scheme slows the rise of water content and increases the yield. Therefore, the calculation method in this paper is effective.
关键词：Sandstone oil reservoir;reasonable water injection volume;efficient development;numerical simulation;water injection development
