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港西油田二次开发工程中，开发层系的细分重组成为提高采收率的一项重要措施。该油田不同的断块，根据含油层系分布的特点形成各自的层系重组模式。港西一区二四断块是最典型的复杂断块，应用三维地震资料和动态监测资料，本次对港西一区二四断块进行重新研究和调整，重新构建新的地下认识体系，根据研究区剩余油分布特点，重新构建新的注采井网。综合考虑影响层系划分的重要地质因素，进一步使分层系开发的问题定量化，最终将港西一区二四断块划分 6 套开发层系。“,”In the secondary development project of Gangxi Oilfield, subdivision and recombination of development strata have become an important measure to improve oil recovery. Different fault blocks in this oilfield form their own recombination mode according to the distribution characteristics of oil-bearing strata. The No. 24 fault block in the first area of Gangxi area is the most typical complex fault block. By using three-dimensional seismic data and dynamic monitoring data, this paper restudies and readjust the No. 24 fault block in the first area of Gangxi area, rebuilds a new underground understanding system, and rebuilds a new injection and production well pattern according to the distribution characteristics of remaining oil in the study area. Considering the important geological factors affecting the stratification, the problems of stratification development are further quantified. Finally, the 244th fault block in Gangxi No.1 area is divided into 6 sets of development stratification.