Acid Based Corrosion

Acid based corrosion occurs with the presence of naturally occurring acids such as Carbon Dioxide (CO₂) and Hydrogen Sulphide (H₂S) to name a few. 

The main method of treating this type of corrosion is by a corrosion inhibitor.  The injected corrosion inhibitor must be in physical contact with the area that requires protection.

This becomes complicated when certain well configurations have one-way valves, and packers.  Injection can be facilitated by weighted inhibitors, and capillary strings to name a few.

Common injection methods are: Batching, continuous, and pigging.  These methods can be used in conjunction with one another depending on individual circumstances.