METHOD OF AIR-TIGHTNESS RECOVERY IN TUBULAR WELL ANNULUS

FIELD: oil and gas industry, particularly for providing air-tightness in tubular well annulus of deep oil, gas and gas-condensate wells. ^ SUBSTANCE: method involves pumping working liquid in tubular annulus, discharging gas from annulus space up to oil appearance at annulus outlet; cooling well bor...

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Bibliographic Details
Main Authors GORBACHEVA O.A, POLJAKOV I.G, FATTAKHOV Z.M, KUNAVIN V.V
Format Patent
LanguageEnglish
Russian
Published 20.08.2004
Edition7
Subjects
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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Summary:FIELD: oil and gas industry, particularly for providing air-tightness in tubular well annulus of deep oil, gas and gas-condensate wells. ^ SUBSTANCE: method involves pumping working liquid in tubular annulus, discharging gas from annulus space up to oil appearance at annulus outlet; cooling well borehole. Liquid completing agent, namely carbamide solution in methanol, is used as working liquid. ^ EFFECT: possibility of air-tightness recovery. ^ 1 ex
Bibliography:Application Number: RU20020100680