$Composition and method for fluid loss control in acid fracturing of earthen formations$

Composition and method for fluid loss control in acid fracturing of earthen formations

Novel compositions and method of controlling fluid loss during acid fracturing employing a gelled acid which is crosslinked by Fe(III) upon spending of the acid. The crosslinking is later reversed by means of a reducing agent which is activated as the pH of the spent acid rises.

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Bibliographische Detailangaben
1. Verfasser:	CROWE, CURTIS W
Format:	Patent
Sprache:	eng ; fre ; ger
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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Beschreibung
Zusammenfassung:	Novel compositions and method of controlling fluid loss during acid fracturing employing a gelled acid which is crosslinked by Fe(III) upon spending of the acid. The crosslinking is later reversed by means of a reducing agent which is activated as the pH of the spent acid rises.