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(19)

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2 285 030

(13)

(51)

IPC

C09K8/20(2006-01-01)

(21) (22)

Application

2004116433/03, 2004-05-31

(24)

Start date

2004-05-31

(22)

Actual filing date

2004-05-31

(45)

Published

2006-10-10

(72)

Inventor

Uljasheva Nadezhda MikhajlovnaBuslaev Viktor FedorovichGusev Roman SergeevichKrasikova Marina Vasil'Evna

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Tekhnicheskij Universitet"

DRILLING FLUID FOR DEVELOPMENT OF EVERFROST SOLIDS (VARIANTS) Russian patent published in 2006 - IPC C09K8/20

Abstract RU 2285030 C2

FIELD: oil and gas industry, geological survey.

SUBSTANCE: claimed drilling fluid preferably having non-sufficient absorption contains (mass %): clay powder 3.0-4.0; carboxymethyl cellulose 0.10-0.15; sodium chloride 1.5-3.0; sodium borate 0.2-0.3; polyglycol 0.3-0.5; and balance: water. Drilling fluid preferably for cluster drilling contains (mass %): clay powder 3.0-4.0; oxyethyl cellulose as organic stabilizer 0.3-0.5; and balance: formation water.

EFFECT: improved fluid for everfrost solid development, in particular for cluster drilling.

2 cl

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RU 2 285 030 C2

Authors

Uljasheva Nadezhda Mikhajlovna

Buslaev Viktor Fedorovich

Gusev Roman Sergeevich

Krasikova Marina Vasil'Evna

Dates

2006-10-10—Published

2004-05-31—Filed