METHOD FOR BOTTOMHOLE ZONE OF TERRIGENOUS FORMATION TREATMENT

FIELD: production of liquid and gaseous media from wells, particularly to treat oil production and injection well bottom zones. ^ SUBSTANCE: method involves delivering hydrochloric acid solution to well bottom zone by forcing thereof with oil; forming hydrochloric acid solution bath at well head; fo...

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Hauptverfasser:	KAMALIEV DAMIR SAGDIEVICH, IBRAGIMOV NAIL' GABDULBARIEVICH, TORIKOVA LJUBOV' IVANOVNA, SHARIKOV GENNADIJ NESTEROVICH, PYKHAREVA IRINA VASIL'EVNA, CHUPIKOVA IZIDA ZANGIROVNA, NIKOLAEV VLADIMIR IVANOVICH, ISAKOV VLADIMIR SERGEEVICH, KORMISHIN EVGENIJ GRIGOR'EVICH
Format:	Patent
Sprache:	eng ; rus
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: production of liquid and gaseous media from wells, particularly to treat oil production and injection well bottom zones. ^ SUBSTANCE: method involves delivering hydrochloric acid solution to well bottom zone by forcing thereof with oil; forming hydrochloric acid solution bath at well head; forcing hydrochloric acid solution into bottom zone; performing swabbing operation via flow string without exercising technological time-delay for acid reaction conduction; delivering hydrofluoric solution to bottom zone, wherein hydrofluoric solution includes mixture of hydrochloric and hydrofluoric acids, as well as surfactant additive; carrying out technological time-delay for 1-2 hours; performing swabbing operation via flow string to reach design well deliverability. ^ EFFECT: increased efficiency of bottomhole zone treatment. ^ 1 ex