The available geological reserve of ZY Oilfield is mainly concentrated in the FY tight oil layer, which is the main potential for future development. In2022, 50 wells were deployed in A Block, but the overall effect was poor after large-scale fracturing and transformation. There were significant differences in single well production capacity, such as high liquid volume, high water cut, and rapid production decline in the initial stage. During the stable stage, the water cut decreases, the liquid volume is low, and it cannot be economically and effectively developed. The spatial distribution patterns of reservoir and crude oil properties is analyzed, which is based on the dynamic data and fine interpretation results. The correlation analysis between relevant geological factors and well production is conducted. The results show that the type of reservoir and the thickness of the main production layer were the main controlling factors for production capacity, and porosity, oil saturation, and crude oil viscosity are secondary factors. The results can provide decision-making basis for measures to tap the potential of old areas in medium viscosity tight oil reservoirs and the deployment of production capacity development in new areas.