Scale prevention in oil-and-gas wells using organophosphorous inhibitors

Authors: A.A. Pereyma (SevKavNIPIgaz JSC, RF, Stavropol)

Key words: oil-and-gas wells, scales, phosphonic complexon, crystallization, scale inhibitor.

There are given the results of studies of phosphonic complexons influence on deposition of salts from aqueous solutions comprising deposit generating ions. The possibility of their application as inhibitors of poorly soluble salts crystallization is evaluated. It is established that application of polymer additives together with phosphonic complexons increases the efficiency of scale inhibition. The prospects of chemical scale prevention methods are shown.
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