METHOD FOR CLEANING WELLS OF THE UNDERGROUND GAS KEEPING STORAGES

Method for cleaning wells of the underground gas storages is intended for cleaning wells and collectors with removal of sludge being the mix of inorganic compounds with hydrocarbon and tar substances by means of treating the slimes with reagents. To increase effectiveness of cleaning, the slime is t...

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Bibliographische Detailangaben
Hauptverfasser:	CHUMAK OLHA PETRIVNA, TKACH OLEH IVANOVYCH, HORNOSTAIEV HENADII PETROVYCH, SLESAR PETRO FEDOROVYCH, MELNYK ANATOLII PAVLOVYCH
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:	Method for cleaning wells of the underground gas storages is intended for cleaning wells and collectors with removal of sludge being the mix of inorganic compounds with hydrocarbon and tar substances by means of treating the slimes with reagents. To increase effectiveness of cleaning, the slime is treated with water solution of the mix of oxalic acid and surface-active substance with concentration of those in the mix being respectively 1-4 and 0.05-0.2 mass %; at that the volumetric ratio of the reagent : slime is kept at 1-3:1. As surface-active substance one uses oxi-ethylized fat alkyl-phenols or alcohols, or acids, sulfo-ethoxylates, alkyl-benzosulfonates, alkyl-sulfates, alken-sulfonates, alkyl-sulfonates.