BOTTOMHOLE FORMATION ZONE TREATMENT COMPOSITION

FIELD: oil and gas industry, particularly compositions to treat bottomhole formation zone. ^ SUBSTANCE: composition comprises hydrochloric acid HCl in amount of 24.2% by weight, hydrofluoric acid HF in amount of 9.0-10.3% by weight,, inhibitor, namely ascorbic acid C6H8O6 in amount of 3.6-5.2 % by w...

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Bibliographische Detailangaben
Hauptverfasser:	ROMANOV ALEKSANDR VALER'EVICH, ROMANOV VALERIJ KONSTANTINOVICH, PANIKAROVSKIJ VALENTIN VASIL'EVICH, SHCHUPLETSOV VLADIMIR ARKAD'EVICH, KUZ'MICH LJUDMILA IVANOVNA, PANIKAROVSKIJ EVGENIJ VALENTINOVICH, KLESHCHENKO IVAN IVANOVICH
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: oil and gas industry, particularly compositions to treat bottomhole formation zone. ^ SUBSTANCE: composition comprises hydrochloric acid HCl in amount of 24.2% by weight, hydrofluoric acid HF in amount of 9.0-10.3% by weight,, inhibitor, namely ascorbic acid C6H8O6 in amount of 3.6-5.2 % by weight and water in amount of 57.8-62.5% by weight. ^ EFFECT: reduced solubility of mineral contained in rock having high clay cement content. ^ 1 tbl