Optimizing Fines Mitigation: Evaluating the Effect of Clay on Sand Agglomeration for Enhanced Sand Control

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Fines migration in oil and gas fields leads to reduced production rates and equipment failure, resulting in substantial monetary loss. Traditional chemical sand control solutions face challenges in effectiveness and ease of placement, particularly in mitigating fines production. This research explores sand agglomeration as a novel approach to fines mitigation, focusing on the impact of clay content on sand agglomeration for enhanced sand control. Tests evaluated the performance of this approach in reducing fines migration. Findings indicate that optimizing fines mitigation through sand agglomeration significantly improves sand control. The study highlights the importance of clay mineralogy, distribution, and behavior in reservoirs for optimizing sand agglomeration and mitigating fines production effectively. Phase 1 bottle testing identified 5% NH4Cl brine as most effective in reducing clay swelling. Phase 2 flow testing showed best agglomeration effects at 3.5%, 5.0%, and 7.0% concentrations of sand agglomeration chemicals. Lower concentrations (2.5%) were insufficient, while higher concentrations (10.0% and 12.0%) resulted in overtreated sand. The study demonstrates that clay content significantly affects sand agglomeration performance and fines mitigation, contributing to improved oil and gas production efficiency. By optimizing fines mitigation through sand agglomeration, this research seeks to provide a valuable contribution to the field of oil and gas production.

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November 2025

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