FIELD: chemistry.
SUBSTANCE: invert emulsions emulsifier is described which contains an oil-soluble surfactant in the form of ethoxylated alkyl phenol AF9-6, fatty acid at a ratio of 2:1 and a hydrocarbon solvent, wherein the emulsifier comprises oleic acid as a fatty acid and a benzene-containing fraction as a hydrocarbon solvent, at that, the total concentration of the oxyethylated alkylphenol AF9-6 and oleic acid in the emulsifier is 15-39%, the rest is the hydrocarbon solvent.
EFFECT: simplified process of emulsifier preparation, increased aggregate stability of emulsions, improved process technology and reduced material costs.
3 tbl
| Title | Year | Author | Number | 
|---|---|---|---|
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 | RU2660967C1 | 
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| EMULSIFIER FOR INVERT EMULSIONS | 2001 | 
 | RU2200056C2 | 
| EMULSIFIER FOR INVERT EMULSIONS | 2017 | 
 | RU2697803C2 | 
| NEFTENOL NZt EMULSIFIER OF INERT EMULSIONS | 1998 | 
 | RU2140815C1 | 
| EMULSIFIER FOR INVERT EMULSION TO INCREASE OIL RECOVERY OF FORMATIONS | 2019 | 
 | RU2720857C1 | 
| EMULSIFIER FOR INVERT EMULSION TO INCREASE OIL RECOVERY OF FORMATIONS | 2019 | 
 | RU2720113C1 | 
Authors
Dates
2017-03-22—Published
2016-04-26—Filed