VDA/ACID SYSTEM FOR MATRIX ACID STIMULATION

A method of preventing phase separation of a viscoelastic surfactant fluid due to ferric ions during matrix acidizing is described which involves including citric acid and acetic acid in the surfactant/acid fluid formulation. L'invention concerne un procédé pour empêcher une séparation de phase...

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Hauptverfasser:	NAKHLI, AYMAN, R, SALEEM, JAFFAR, A, HAJI, HABEEB, H, AL-TAQ, ALI, A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES
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Zusammenfassung:	A method of preventing phase separation of a viscoelastic surfactant fluid due to ferric ions during matrix acidizing is described which involves including citric acid and acetic acid in the surfactant/acid fluid formulation. L'invention concerne un procédé pour empêcher une séparation de phases d'un fluide tensio-actif visco-élastique due à des ions ferriques au cours d'une acidification de matrice. Ce procédé consiste à inclure de l'acide nitrique et de l'acide acétique dans la formulation fluide agent tensio-actif/acide.