Control Corrosion at Acceptable Level

Drill-string and casing in continuous contact with drilling fluid may cause a form of corrosion. [Pg.178]

Dissolved gases (oxygen, carbon dioxide, hydrogen sulfide) cause serious corrosion problems [Pg.178]

Low pH (acidic) may be the cause of corrosion and aggravates, so corrosion coupon is essential to monitor the type of corrosion and simultaneously can suggest the right material (chemical inhibitor) to resist it. [Pg.179]

Mud aeration, foaming and other O2 trapped conditions cause corrosion damage in short period time. [Pg.179]

When drilling in high H2S, elevate the pH fluids + sulphide scavenging chemical (zinc). [Pg.179]

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