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2 016 041

(13)

(51)

IPC

(21) (22)

Application

4929267/03, 1991-04-22

(22)

Actual filing date

1991-04-22

(45)

Published

1994-07-15

(72)

Inventor

Kanzafarov F.Ja.

(73)

Holder

Nizhnevartovskij Nauchno-Issledovatel'Skij I Proektnyj Institut Neftjanoj Promyshlennosti

HYDROCARBON BASED DRILLING MUD Russian patent published in 1994 - IPC

Abstract RU 2016041 C1

FIELD: drilling muds. SUBSTANCE: the drilling mud having reduced rheological and structural and mechanical properties as well as high thermal stability comprises (wt % ): 7.5-8.8 a thickening agent such as aluminium naphthenate and 20-25 a water soluble alcohol such as methanol or ethanol or isopropanol or a mixture of C₁-C₃ alcohols. EFFECT: improved properties of the drilling mud. 2 tbl

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RU 2 016 041 C1

Authors

Kanzafarov F.Ja.

Dates

1994-07-15—Published

1991-04-22—Filed