■ Neutral liquid
■ Strong stability of iron ions
■ good dissolution effect
In the acidizing operation of oil and gas wells, the acid will dissolve a certain amount of iron ions from the downhole metal string and the formation rock. When the acid is gradually consumed into residual acid, when the pH rises to 2-3, a large amount of Fe3+ will form precipitation and plug the formation pore throat, reducing the acidizing effect. The product can prevent the reprecipitation of Fe3+ from three aspects of complexation, reduction and dispersion, and has the effect of preventing Fe3+ precipitation from damaging the formation.
Item | Index | |
Appearance | Uniform Liquid | |
pH | ≤7 | |
The ability to stabilize iron ions (Fe3+),mg/mL | ≥90 | |
Solubility | Clear water | Clarification |
In hydrochloric acid ( 1 % volume concentration ) | Clarification | |
In mud acid ( 1 % volume concentration ) | Clarification |
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