AFS (Acetone Formaldehyde Sulfite)
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AFS are dispersants used in oil and gas cementing systems to improve flow properties, reduce viscosity, and reduce the amount of water required. These additives help to increase the efficiency of cementing operations by reducing the amount of cement needed while maintaining its integrity.
AFS is a synthetic polymer that absorbs and reduces electrostatic repulsion between cement particles, allowing them to form a denser and stronger cement structure.
AFS is a water-soluble polymer effective in high salt conditions due to its ability to disperse salts and prevent them from interfering with cement hydration. It is also effective at high temperatures and necessary for cementing operations in geothermal and deepwater wells.
AFS is ideal for use in high salt and high-temperature conditions, where conventional cementing additives may not be practical, ensuring a strong and durable cement structure.