BRANCHED EMULSIFIER FOR HIGH-TEMPERATURE ACIDIZING

A composition in the form of an emulsion is provided, the composition including: (i) a continuous oil phase; (ii) an internal aqueous acid phase adjacent the continuous oil phase; and (iii) a source of ammonium ion, wherein the ammonium ion has: (a) at least one ammonium ion; (b) an organic group wi...

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Bibliographische Detailangaben
Hauptverfasser:	PANDYA, NISHA KAUSTUBH, WADEKAR, SUSHANT DATTARAM, WAGLE, VIKRANT BHAVANISHANKAR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMISTRY DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PAINTS POLISHES
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Beschreibung
Zusammenfassung:	A composition in the form of an emulsion is provided, the composition including: (i) a continuous oil phase; (ii) an internal aqueous acid phase adjacent the continuous oil phase; and (iii) a source of ammonium ion, wherein the ammonium ion has: (a) at least one ammonium ion; (b) an organic group with at least 40 carbon atoms; (c) at least 40 carbon atoms per ammonium ion; (d) a carbon to nitrogen ratio of at least 20 carbon atoms per nitrogen atom; and (e) at least one alkyl branch on the organic group. In addition, a method of acidizing a subterranean formation is provided, the method including the steps of: (A) forming a treatment fluid comprising a composition according to the invention; and (B) introducing the treatment fluid into the well. La présente invention concerne une composition sous forme d'émulsion, ladite composition comprenant : (i) une phase huileuse continue; (ii) une phase aqueuse acide interne adjacente à la phase huileuse continue; et (iii) une source d'ion ammonium, l'ion ammonium possédant : (a) au moins un ion ammonium; (b) un groupe organique comportant au moins 40 atomes de carbone; (c) au moins 40 atomes de carbone par ion ammonium; (d) un rapport carbone-azote d'au moins 20 atomes de carbone par atome d'azote; et (e) au moins une ramification alkyle sur le groupe organique. L'invention concerne en outre un procédé d'acidification d'une formation souterraine, ledit procédé comprenant les étapes consistant à : (a) former un fluide de traitement contenant une composition selon l'invention; et (b) introduire le fluide de traitement dans le puits.