Compound surfactant for teriary oil producation and appliction thereof

A compound surfactant used in tertiary oil extraction contains at least two kinds of alkyl aromatic sulfonated substance (40-60 wt. portions), non-ionic surfactant (0-10), low-alkyl alcohol (5-30), aromatic solvent (0-10), binary alcohol (0-10), alkali (3-10) and water (5-20), and can be used to pre...

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Bibliographic Details
Main Authors YIHONG XU, SONGNAN XU
Format Patent
LanguageEnglish
Published 28.01.1998
Edition6
Subjects
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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Summary:A compound surfactant used in tertiary oil extraction contains at least two kinds of alkyl aromatic sulfonated substance (40-60 wt. portions), non-ionic surfactant (0-10), low-alkyl alcohol (5-30), aromatic solvent (0-10), binary alcohol (0-10), alkali (3-10) and water (5-20), and can be used to prepare petroleum-displacing injection liquid, which has very low surface tension with residual petroleum (less than 0.001 mN/m), resulting in high output rate of recovering residual petroleum.
Bibliography:Application Number: CN19971012025