Oxide scavengers

TPE offers a high effective oxide scavenger that is effective at the pH levels found in most drilling fluids.


Zinc Oxide

Zinc oxide readily reacts with the H2S ion (HS-) and sulphide ions (S2-) to form insoluble zinc bisulphide and zinc sulphide. Consequently, zinc oxide provides a very effective means of combating H2S intrusion and protecting ferrous hardware from hydrogen embrittlement and rig personnel from poisoning.

The reaction is rapid as a consequence of the very high specific surface area of the product and proceeds over a wide pH range, though the common primary method for mitigating the hazards of H2S is a high drilling fluid pH. (However, high pH simply ensures that H2S remains in its dissociated, soluble forms; that is, HS- and S2-. The hazard presented by H2S is only permanently removed by precipitation as an insoluble salt; in this case, zinc sulphide.)

Contact Us

Head Quarter Office

Address: #8 , No. 30, Royal Department, Rafiei street, Bahonar Street (NIAVARAN). Tehran , Iran

Tel: (021) 26107453 - (021) 26107361

Fax: (021) 26107416

Email: info@tadbirpe.com

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