HYDROGEN SULFIDE NEUTRALIZATION COMPOSITION

FIELD: petroleum industry. ^ SUBSTANCE: hydrogen sulfide neutralization composition applicable in oil production and treatment systems includes aqueous ammonia solution, 98.0-99.3%, complexing agent, 0.5-1.5%, and additionally nonionic surfactant, 0.2-0.5%. Complexing agent is selected from group co...

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Bibliographische Detailangaben
Hauptverfasser:	MAMBETOVA LORA MINGAZOVNA, SHAJDAKOV VLADIMIR VLADIMIROVICH, GOLUBEV MIKHAIL VIKTOROVICH, GOLUBEV VIKTOR FEDOROVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY METALLURGY TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	FIELD: petroleum industry. ^ SUBSTANCE: hydrogen sulfide neutralization composition applicable in oil production and treatment systems includes aqueous ammonia solution, 98.0-99.3%, complexing agent, 0.5-1.5%, and additionally nonionic surfactant, 0.2-0.5%. Complexing agent is selected from group consisting of: polyaminophosphonic acid, nitrilotrimethyl-phosphonic acid, 1-oxyethylene-diphosphonic acid, tetramethylene-phosphonic acid, or derived thereof. Surfactant is nitrogen-containing ethylene oxide/propylene oxide block copolymer. Aqueous ammonia solution is used in amount allowing consumption of 0.5 mole ammonia per 1 mole hydrogen sulfide. Composition according to invention is effective neutralizer of hydrogen sulfide and other acidic components (mercaptans) in well products and show elevated reactivity. Neutralization process involving proposed composition is not accompanied by precipitation of salts in rejected formation water. In addition, use of composition allows complications (such as difficult water separation) in commercial petroleum provision technology to be avoided. ^ EFFECT: improved performance characteristics of composition. ^ 1 tbl, 4 ex