FREMGANGSMAATE VED SEKUNDAER UTVINNING AV PETROLEUM FRA EN UNDERJORDISK FORMASJON SOM INNEHOLDER VANN MED HOEYT SALTINNHOLD

FREMGANGSMAATE VED SEKUNDAER UTVINNING AV PETROLEUM FRA EN UNDERJORDISK FORMASJON SOM INNEHOLDER VANN MED HOEYT SALTINNHOLD

A microemulsion comprises a mixture of water containing an excess of 60 g/l of mono- and divalent salts, a hydrocarbon, an amphoteric surfactant of the formula: wherein m is a whole number ranging from 1 to 5, inclusive, n is a whole number ranging from 1 to 22 inclusive, X is a member selected from...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: COSTE, JEAN-FRANCOIS, GRANGETTE, HENRI
Format: Patent
Sprache:nor
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 microemulsion comprises a mixture of water containing an excess of 60 g/l of mono- and divalent salts, a hydrocarbon, an amphoteric surfactant of the formula: wherein m is a whole number ranging from 1 to 5, inclusive, n is a whole number ranging from 1 to 22 inclusive, X is a member selected from the group consisting of COO, SO3 and a sulphonated ethylene polyoxide, and R1 and R2 are hydrocarbon groups containing from 1 to 22 carbon atoms and a co- surfactant comprising at least one C1 to C10 alcohol. This microemulsion may be used for recovering petroleum in beds containing water of high salinity.