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1. (WO1991008376) METHOD FOR PLUGGING WELL WALLS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/008376 International Application No.: PCT/SU1989/000300
Publication Date: 13.06.1991 International Filing Date: 27.11.1989
IPC:
E21B 33/138 (2006.01) ,E21B 41/00 (2006.01)
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
33
Sealing or packing boreholes or wells
10
in the borehole
13
Methods or devices for cementing, for plugging holes, crevices, or the like
138
Plastering the borehole wall; Injecting into the formation
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
41
Equipment or details not covered by groups E21B15/-E21B40/95
Applicants:
MINISTERSTVO GAZOVOI PROMYSHLENNOSTI SSSR [SU/SU]; ul. Stroitelei, 8-1 Moscow, 117939, SU (AllExceptUS)
SHAMOV, Nikolai Alexandrovich [SU/SU]; SU (UsOnly)
AGLIULLIN, Akhtyam Khalimovich [SU/SU]; SU (UsOnly)
BAIRAKOV, Marat Nilovich [SU/SU]; SU (UsOnly)
MAVLJUTOV, Midkhat Rakhmatullich [SU/SU]; SU (UsOnly)
AKBULATOV, Iskander Timurovich [SU/SU]; SU (UsOnly)
Inventors:
SHAMOV, Nikolai Alexandrovich; SU
AGLIULLIN, Akhtyam Khalimovich; SU
BAIRAKOV, Marat Nilovich; SU
MAVLJUTOV, Midkhat Rakhmatullich; SU
AKBULATOV, Iskander Timurovich; SU
Agent:
THE USSR CHAMBER OF COMMERCE AND INDUSTRY; ul. Kuibysheva, 5/2 Moscow, 103735, SU
Priority Data:
Title (EN) METHOD FOR PLUGGING WELL WALLS
(FR) PROCEDE DE COLMATAGE DE PAROIS DE PUITS
Abstract:
(EN) The invention relates to the boring of oil and gas wells. The method consists in extraction, by separation, of the coarse and fine fractions from the isolating material and in successive plugging of the well wall with these fractions by means of jet treatment from nozzles. The invention is applicable in particular for isolation, directly during the boring process, of zones presenting complications to prevent the absorption of the drilling and plugging mud into these zones and to improve function effectiveness of the rock-crushing instrument.
(FR) L'invention a trait au forage de puits de pétrole et de gaz. Le procédé consiste à extraire, par séparation, les fractions grossières et fines tirées du matériau isolant, et à colmater successivement les parois du puits présentant ces fractions, selon un traitement par jets provenant d'ajutages. L'invention est notamment applicable à l'isolation, directement pendant le processus de forage, de zones présentant des complications afin d'empêcher l'absorption de boue de forage et de colmatage dans ces zones, et afin d'améliorer l'efficacité fonctionnelle de l'instrument de broyage de roche.
Designated States: NO, US
European Patent Office (AT, BE, CH, DE, ES, FR, GB, IT, LU, NL, SE)
Publication Language: Russian (RU)
Filing Language: Russian (RU)