Anti-sludge agents are specially formulated chemicals designed to inhibit the agglomeration and settling of these solids, keeping them dispersed within the oil. Common chemistries of anti-sludge agents include surfactants, polymers, and dispersants, which work by modifying the surface properties of the solid particles, preventing them from sticking together and forming sludge. By maintaining the stability of oil systems and preventing sludge formation, these agents ensure smooth and uninterrupted oil production processes.