Novel compositions for controlling iron during the acid...

Details Novel compositions for controlling iron during the acid... Novel compositions for controlling iron during the acid...

E - Fixed Constructions

21

B

E21B 43/27 (2006.01) B08B 3/08 (2006.01) C09K 8/528 (2006.01) C09K 8/74 (2006.01) C11D 7/08 (2006.01) E21B 37/06 (2006.01) C09K 7/00 (1990.01)

Patent

CA 2119754

L'invention concerne le contrôle du fer en milieu acide pour éviter la formation de précipités appelés "sludges" (produits asphaltiques) au contact avec certains bruts. On utilise des thiourées comme réducteurs, et en combinaison, une sélection de cata- lyseurs. Application aux traitements acides des puits pétroliers, à gaz, d'eau, géothermiques et analogues, et en nettoyage indus- triel.

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