The effect of adding carboxymethyl cellulose and zinc sulfate on the corrosion characteristics of the drilling fluid

• Published in: Ai-Khawarizmi engineering journal Vol. 15; no. 1; pp. 125 - 133
• Main Authors: al-Rabii, Najm Abd al-Kazim, al-Barazanji, Muhammad Gazi, Kazim, Fadil Sarhan
• Format: Journal Article
• Language: English
• Published: Baghdad, Iraq University of Baghdad, al-Khwarizmi College of Engineering 01-03-2019; Al-Khwarizmi College of Engineering – University of Baghdad
• Subjects: Bentonite Mud, Corrosion, Carboxymetyl Cellulose, Carbon Steel, Zinc Sulfate; التآكل; الكبريتات; كبريتات الزنك
• ISSN: 1818-1171; 2312-0789
• DOI: 10.22153/kej.2019.08.003

Drilling solutions can be considered as an intricate mixture comprising of number of chemical additives which
aid specific needs such as controlling the rheological properties and reducing corrosion. Inhibitors are substances
that are added in small concentrations to corrosive environment to decrease the corrosion. Their applications can be
found in drilling equipments. The effect of adding Zinc Sulphate and Carboxymethyl Cellulose to study their
influence on the corrosion of carbon steel in Bentonite mud has been evaluated using Weight Loss Technique. This
study focuses on determining rheological properties and corrosion characteristics. Results show CMC and ZnSO4
work as inhibitors when added to the Bentonite with inhibition efficiency was approximately equal to 50%.