| 摘要 |
Methods and compositions for removing scale from surfaces, particularly from subsurface and surface equipment associated with oil and gas wells, and industrial equipment such as heat exchangers, condensers, boilers and the like. The scale to be removed is dissolved in aqueous basic solutions of diglycolic acid salts, mixtures of diglycolic acid salts and hydroxy acid salts, and mixtures of diglycolic acid salts and substituted acid salts of diamines or tertiary amines.
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