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Abstract This paper investigates the practical experience gained from deployment of chemical tracers in multi-stage acid and proppant fracturing operations, aimed at quantifying individual stage contributions to total production, allowing the effectiveness of each stage's stimulation to be evaluated. This work encompasses fracturing experience in horizontal and vertical completions while covering both acid and proppant fracturing practices, enabling a broad comparison across completion types. The procedure commences by injecting uniquely coded chemical tracers into the fracturing fluids, exclusive to each stage. The tracers formed in liquid and gas are deployed with peristaltic pump and fed air blower system, pumped with acid or proppant fracturing fluids. Upon concluding the fracture operation in all stages, the well is subsequently opened for post-fracture flowback. During this phase, samples of oil, gas, and condensate are collected daily at various choke sizes. The sampling process is conducted routinely until the flowback period is completed once clean-up criteria is attained. These samples are sent for lab analysis to identify and interpret the unique tracer codes captured at surface. Each stage's unique code is then precisely identified and measured, illustrating the contribution from each stage during flowback to the overall production The deployment of the concept in deep tight gas applications have enabled robust conclusions. Tracers returns allow assessment of stage effectiveness across stimulation design, lateral placement, perforation/fracture port configuration and choke sizes. The presence of optimal tracer returns from a stage are used to indicate an appropriately designed stage. This paper will highlight different examples of tracer returns, and the associated well completion design, while considering a variety of scenarios including vertical and horizontal trajectories, cemented liner as well as open-hole multi-stage completions in acid and proppant fracture designs. Ultimately, varying well designs, along with the observed tracer return, are utilized to draw substantial conclusions on the efficacy of stimulation design, perforation selection, and choke size optimization. Stage contribution can be correlated with stimulation treatment. Therefore, evaluating contribution can lead to improving stimulation design, perforation selection, lateral placement in horizontal completion, and number of stage optimization.