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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2006, Volume 57, Issue 10,





Chemical Control
of Calcium Carbonate Deposition Appeared at Thermal Water Utilization


Abstract:

This paper presents the results of a research work regarding scaling problems which could appear at geothermal waters utilization. Two geothermal wells were taken in this study. They have been used for direct heating. Similar problems have been encountered in both of these wells during their utilization. In order to solve the scaling problem, first, deposition samples were taken by using a special scaling device and then, were structurally analysed. It was found out that they contained the same type of crystals. An experimental study on calcium carbonate scaling and prevention by chemical inhibitors was carried out in laboratory. The performances of two inhibitors with different concentrations were analysed in terms of the amount of scale formed. A field test on the addition of scale inhibitors to geothermal waters was performed to check the feasibility of the downhole inhibitor injection technique, as a reliable solution to the carbonate scaling problem. In order to study the inhibiting capacities of the chemicals, experiments were performed with two different inhibitors. Keywords: inhibitor injection, special scaling device


Issue: 2006, Volume 57, Issue 10
Pages:
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