FIELD: oil and gas production and corrosion protection.
SUBSTANCE: composition according to invention, which can be used for asphaltene-tar-paraffin deposits from bottom zone of formation, discharge pipes, oil-collection reservoirs, and oil-field equipment, contains 1-5 vol % nonionic surfactant: oleic acid, С9-С12-alkyl-phenol, С9-С10-alkyl-phenol, or N-alkyl-3-methyl-5-ethylpyridinum bromide in solvent; 1-5% cationic surfactant: product of reaction of primary and secondary aliphatic amine mixture with industrial-grade dimethyl phosphite; and solvent (Absorbent A) in balancing amount. Composition can also be based on straight-run gasoline containing in this case 10 to 50 vol % Absorbent A.
EFFECT: increased cleaning efficiency in combination with anticorrosive effect and reduced expenses on reagents.
2 cl, 3 tbl, 23 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CORROSION PROTECTION COMPOSITION FOR OIL FIELD EQUIPMENT | 1999 |
|
RU2140464C1 |
| COMPOSITION FOR DESTRUCTION OF AQUEOUS-PETROLEUM EMULSION AND TREATMENT OF SEWAGE WATERS POSSESSING INHIBITORY EFFECT ON HYDROGEN SULFIDE, CARBON DIOXIDE CORROSION AND SALT DEPOSITIONS | 2004 |
|
RU2263133C1 |
| COMPOSITION FOR REMOVAL OF ASPHALTENE-RESINOUS-PARAFFIN ACCUMULATIONS | 2001 |
|
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| COMPOSITION FOR REMOVING ASPHALTENE-TAR-PARAFFIN DEPOSITS | 1999 |
|
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| COMPOSITION FOR CRUDE OIL DEHYDRATION AND DESALTING, INHIBITION OF CORROSION AND ASPHALTENE-TAR-PARAFFIN DEPOSITS | 1998 |
|
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| CORROSION INHIBITOR PREPARATION METHOD | 2000 |
|
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| FORMULATION FOR REMOVING ASPHALTENE-TAR-PARAFFIN DEPOSITS AND HYDROPHOBIZATION OF FORMATION BOTTOM ZONE | 2005 |
|
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