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2 148 702

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IPC

(21) (22)

Application

96110865/03, 1996-05-28

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Start date

1996-05-28

(22)

Actual filing date

1996-05-28

(45)

Published

2000-05-10

(72)

Inventor

Mavljutov M.R.Khakimov F.M.Kateeva R.I.Sharafutdinov Z.Z.Giljazetdinov Z.F.Saitgaraev R.Z.

(73)

Holder

Maloe Vnedrencheskoe Predprijatie

METHOD FOR DRILLING UNSTABLE CLAYEY DEPOSITIONS IN BORE-HOLE Russian patent published in 2000 - IPC

Abstract RU 2148702 C1

FIELD: mining industry. SUBSTANCE: according to method, drilling of clayey depositions is effected with use of water-based drilling fluid containing reagent with binding properties. Used in function of reagent is water solution of water-soluble polyelectrolyte of cationic type of 0.3-1.0% concentration. Used in function of water-based drilling fluid is natural water suspension. Application of aforesaid method allows for avoiding complications connected with destruction of bore-hole walls. Well construction period is also reduced. EFFECT: higher efficiency.

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RU 2 148 702 C1

Authors

Mavljutov M.R.

Khakimov F.M.

Kateeva R.I.

Sharafutdinov Z.Z.

Giljazetdinov Z.F.

Saitgaraev R.Z.

Dates

2000-05-10—Published

1996-05-28—Filed