HCl of any strength has an undesirable reaction on steel. The amount of damage will depend upon contact time, acid strength, and temperature conditions. As bottom hole temperatures increase, the effectiveness of many moderate temperature acid inhibitors decreases below desirable protection levels. The corrosive action of acid on steel at high bottom-hole temperatures can be greatly reduced at temperatures up to 350°F)by adding BA1-11 to the acid mixture.

Applications

• Matrix acidizing stimulation operations
• Fracture acidizing stimulation operations
• Wellbore cleaning with acid formulations

Features and Benefits

• Excellent high-temperature metal corrosion protection
• Provide corrosion protection in all HCL and HCL-HF blends up to 204℃
• Contains no heavy metal salts, and has a high flash point
• Reduces acid corrosion rates on common oilfield tubulars, including coiled tubing
• Improves design flexibility because it works in virtually all strengths of hydrochloric acid and mixtures of hydrochloric-hydrofluoric and hydrochloric-organic acids
• Disperses easily in all acid-based fluids
• Can provide acid corrosion inhibitor protection for as long as 24 hours
• Can provide acid corrosion inhibitor protection for K55，J55, N80, CT80, QT800 and P110、P110S etcetera  

Technical Data

Usage

GALLONS BA1-11 PER 1000 GALLONS ACID

Concentration is dependent on acid type, strength, bottom-hole temperature, contact time, and additional additives.

Pitting represented by Ranks 1 through 4 usually are not considered serious . Ranks 1 and 2 are on surfaces that normally do not occur in oil well tubular goods . This corrosion depends largely on Ihe method of pipe manufacture, for example, heat treatment. Ranks 3 and 4 frequently are accompanied by very low corrosion rates and often have been observed with arsenic inhibitors.

*-SPE 5644,C.F.Smith,F.E.Dollarhide ＆ Nancy J.Byth; Dowell. Presented at 50th Annual Meeting of SPE, Dallas, TX9/28-10/1/75.