The W12 oilfield is a complex fault-block oilfield with characteristics such as low porosity, extremely low permeability, high initial pressure, and no natural production capacity of oil wells under normal conditions. Based on extensive research of domestic and foreign literature, this paper analyzes the reservoir properties and fluid properties of the W12 oilfield, studies the effects of different concentrations and types of surfactant fracturing fluids on reducing interfacial tension and improving matrix wettability, and uses the numerical software CMG to simulate to obtain the optimal well sealing time, well fluid injection volume, fracture size, production fluid volume, etc. for production and recovery. Other production parameters are optimized as follows: well sealing for 25 days, daily injection volume of 600 m3/d, cumulative injection volume of 7800 m3, fracture half-length of 200 m, and production fluid volume of 240 m3/d.