METHOD OF TREATMENT OF BOTTOM-HOLE FORMATION ZONE OF OIL WELLS AND EQUIPMENT FOR ITS EMBODIMENT

FIELD: oil production; preparation of mixture with preset characteristics and delivery of mixture to treated formation. SUBSTANCE: method includes injection into tubing string run into well of displacement agent based on nitrogen and liquid containing surfactants, gel-forming agents and acids. Quant...

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Bibliographische Detailangaben
Hauptverfasser:	IGNATOV S.F, VOLKOV N.P, POLUNIN V.L, MAKSUTOV R.A, KON'KOV V.N, ISANGULOV K.I
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	FIELD: oil production; preparation of mixture with preset characteristics and delivery of mixture to treated formation. SUBSTANCE: method includes injection into tubing string run into well of displacement agent based on nitrogen and liquid containing surfactants, gel-forming agents and acids. Quantities of components and their ratios are regulated by weighing batcher located on the lower end of internal pipe directly under packer secured to internal well of casing. EFFECT: higher efficiency. 4 cl, 2 dwg