FIELD: oil and gas industry.
SUBSTANCE: invention relates to the field of protection of gas and oil field equipment and pipelines operating in highly mineralized hydrogen sulfide-containing aqueous media from corrosion, as well as transportation of oil and gas. A method for producing corrosion inhibitors for oilfield, mineralized and hydrogen sulfide-containing media based on polypropylene polyamines and carboxylic acids with distillation of reaction water and impurities is characterized by the fact that, as polypropylene polyamine, tetrapropylenepentamine [(3,6,9,12-tetramethyl)-1,4,7,10,13-pentamino-tridecane] is used, which reacts with monocarboxylic acid first at a temperature of 160°С for 4-5.5 hours, then at a temperature of 255-260°С for 2-2.5h in a molar ratio of tetrapropylenepentamine : monocarboxylic acid equal to 1 : 2-2.1, followed by the interaction of the obtained bis-imidazolines with acrylic acid nitrile at a temperature of 80°С in molar ratio of bis-imidazoline based on tetrapropylenepentamine : acrylic acid nitrile, equal to 1:1.05.
EFFECT: invention expands the resource base and the range of products, reduces the price of the target product.
1 cl, 1 tbl, 2 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR OBTAINING CORROSION INHIBITORS BASED ON TETRAPROPYLENE PENTAMINES FOR OILFIELD EQUIPMENT AND PIPELINES | 2020 |
|
RU2754319C1 |
METHOD FOR OBTAINING CORROSION INHIBITOR BASED ON POLYPROPYLENE POLYAMINE AND CARBOXYLIC ACID FOR OILFIELD, MINERALIZED AND HYDROGEN SULFIDE-CONTAINING MEDIA | 2020 |
|
RU2756210C1 |
METHOD FOR OBTAINING CORROSION INHIBITORS BASED ON BIS-IMIDAZOLINES AND THEIR DERIVATIVES FOR OILFIELD, MINERALIZED AND HYDROGEN SULFIDE-CONTAINING MEDIA | 2020 |
|
RU2756209C1 |
METHOD FOR OBTAINING BIS-IMIDAZOLINES AND THEIR DERIVATIVES BASED ON PENTAPROPYLENE HEXAMINES FOR CORROSION PROTECTION OF OIL FIELD EQUIPMENT AND PIPELINES | 2020 |
|
RU2754320C1 |
METHOD FOR PRODUCING CORROSION INHIBITORS BASED ON TETRAETHYLENE PENTAMINE FOR OILFIELD, MINERALIZED AND HYDROGEN SULFIDE-CONTAINING MEDIA | 2020 |
|
RU2754325C1 |
METHOD FOR OBTAINING CORROSION INHIBITORS BASED ON BIS-IMIDAZOLINES FOR OILFIELD EQUIPMENT AND PIPELINES | 2020 |
|
RU2754323C1 |
CORROSION INHIBITOR FOR THREE-PHASE SYSTEM | 2003 |
|
RU2267562C2 |
METHOD FOR PRODUCING CORROSION INHIBITORS BASED ON PENTAPROPYLENE HEXAMINES FOR OILFIELD, MINERALIZED AND HYDROGEN SULFIDE-CONTAINING MEDIA | 2020 |
|
RU2754322C1 |
METHOD FOR PRODUCING CORROSION INHIBITORS BASED ON PENTAPROPYLENE HEXAMINES FOR OILFIELD EQUIPMENT AND PIPELINES | 2020 |
|
RU2754321C1 |
PROCEDURE FOR PRODUCTION OF CORROSION INHIBITORS | 2008 |
|
RU2394941C1 |
Authors
Dates
2021-09-01—Published
2020-12-14—Filed