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IPC

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Application

94018209/03, 1994-05-18

(22)

Actual filing date

1994-05-18

(45)

Published

1998-01-27

(72)

Inventor

Rajanov K.S.Khakimov F.Sh.Fatkhutdinov I.Kh.

(73)

Holder

Bashkirskij Nauchno-Issledovatel'Skij I Proektnyj Institut Nefti Filial Aktsionernoj Neftjanoj Kompanii

DRILLING LIQUID Russian patent published in 1998 - IPC

Abstract RU 2103312 C1

FIELD: oil and gaseous hole drilling. SUBSTANCE: drilling liquid has, wt. -%: clay 3-5; starch 0.8-2.5; carboxymethylcellulose 0.7-1.5; calcium carbonate 3-5; mineralized water at density 1.10-1.16 g/cm3 and total mineralization 180-250 g/l 5-10, and fresh water - the rest. EFFECT: improved quality of liquid. 1 tbl

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RU 2 103 312 C1

Authors

Rajanov K.S.

Khakimov F.Sh.

Fatkhutdinov I.Kh.

Dates

1998-01-27—Published

1994-05-18—Filed

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