Development of a 'Green' Hydrothermally Stable Scale Inhibitor for Geothermal Wells and Pipelines
- Key words
- Scale inhibitor, calcium carbonate, jar test, dynamic scale loop, water chemistry, hydrothermal stability, biodegradability, green
- Conference
- Western Pacific Regional Branch
- Year
- 2011
- Language
- English
Full text
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Abstract
The need for low toxicity, biodegradable and hydrothermally stable scale inhibitors is increasing, and greener chemistries are being sought to meet these challenges.
This paper describes an environmentally friendly inhibitor and uses simple jar and dynamic scale loop tests to evaluate the inhibitor compared to a commercial „green‟ inhibitor for carbonate scales. Hydrothermal studies performed under differing pH regimens demonstrate stability to 200°C (392°F) thereby showing good potential for Geothermal wells and pipelines.
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