Stimulating sandstone reservoirs presents unique challenges, often involving delicate mineralogy and the risk of formation damage. NINGBO INNO PHARMCHEM CO.,LTD. offers innovative chelating agents that provide a more controlled and effective approach to sandstone acidizing, moving beyond the limitations of traditional methods.

While HCl is commonly used in sandstone acidizing to dissolve cementing materials, it can also lead to excessive dissolution and potential sand production. Chelating agents, such as those based on aminopolycarboxylic acids in oil industry applications, offer a gentler yet effective alternative. They can selectively remove minerals that damage permeability without causing widespread instability in the sandstone matrix.

One key advantage of using chelating agents in chelating agents for sandstone acidizing is their ability to sequester detrimental ions. During acid treatment, dissolved metals can re-precipitate within the pore structure, causing plugging. Chelating agents prevent this by keeping ions in solution. They are particularly useful in preventing the precipitation of iron hydroxides and other undesirable solids that can severely impair the permeability of sandstone formations.

Furthermore, the risk of sand production, a significant concern in sandstone reservoirs, can be mitigated by using less aggressive stimulation fluids. Chelating agents, when formulated correctly, provide the necessary dissolving power while minimizing the risk of dislodging fine sand particles. This is crucial for maintaining wellbore stability and preventing equipment damage.

NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to developing and supplying chelating agents that not only perform effectively in sandstone stimulation but also offer environmental benefits, such as biodegradability. By choosing advanced chelating agents, operators can achieve improved production outcomes with reduced risk, underlining the importance of specialized chemical solutions in modern oil and gas operations.