The Kailu Basin is dominated by low-permeability reservoirs characterized bypoor physical properties, severe heterogeneity, and complex TEZHEN networks. Inrecent years, the increasing adoption of horizontal wells, the widespread implementation of vertical horizontal combined injection-production well patterns, limited candidate layers for vertical well fracturing, and rapid water breakthrough along high-permeability zones have intensified development challenges Xing, Yang (Process Technology: 163–165, 2023). This necessitates the application of diversified dynamic monitoring technologies to precisely analyze reservoir production behavior and remaining oil distribution, therebyproviding critical data support for optimizing development strategies and enabling scientific decision-making He (Chemical Engineering & Equipment: 87–88, 2023). To address these technical bottlenecks, a targeted dynamic monitoring system has been developed, achieving notable success in key areas such as horizontal well fracturing evaluation, production profile testing, and sweet-spot identification/effect assessment for vertical well fracturing. These technologies have effectively addressed the limitations of conventional monitoring methods in the Kailu Basin, refined the monitoring framework for low-permeability reservoirs, and facilitated efficient reservoir development and enhanced oil recovery Wang, Huo, Dai et al (Petrochemical Technology):121–123, 2025).