The East 1st member of Nanpu M area is a typical complex fault block multilayer sandstone water injection development reservoir, with strong heterogeneity, uneven horizontal and vertical production, and low water drive production. In view of the above problems, the response relationship between sedimentary facies and water drive effectiveness is studied by using the mainstream line analysis method. The flow field strength, water content, permeability, streamline density, water flow multiple and other flow field characterization parameters are introduced to complete the quantitative analysis of the flow field of the main fault block. According to the flow field evaluation results, the flow field types are summarized as non flow field, weak flow field, dominant flow field and strong flow field. The distribution characteristics of the streamline are summarized as: no streamline is established, the streamline is fixed and difficult to adjust, the streamline is clear in primary and secondary, and the streamline is relatively balanced. Based on the sedimentary characteristics and development and production dynamic characteristics, the influencing factors of different flow field types are analyzed and their distribution laws are studied, the adjustment potential of weak flow field and non flow field is clarified, and an oil–water well linkage control countermeasure system combining vertical “separation, increase and regulation” and horizontal “regulation, plugging, control, boosting and pressure” is formed, so as to adjust the water drive flow field in three dimensions, reduce the horizontal and vertical production differences, and improve the water drive production degree. Through the practice of flow field adjustment technology in Nanpu M area, the effect of water drive development has been effectively improved, which indicates that the flow field adjustment technology can provide a new technical means for the comprehensive treatment and potential tapping of the same type of reservoirs.