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2 182 587

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Application

2001123455/03, 2001-08-23

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Start date

2001-08-23

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Actual filing date

2001-08-23

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Published

2002-05-20

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Inventor

Grinevskij I.N.Rakhmatullin R.K.Andreson B.A.Bochkarev G.P.Umutbaev V.N.Samatov R.M.Chetvertneva I.A.

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Holder

Oao Npo Tekhnika"

LUBRICANT COMPOSITION FOR WATER-BASE MUD Russian patent published in 2002 - IPC

Abstract RU 2182587 C1

FIELD: petroleum and gas holes drilling. SUBSTANCE: lubricant composition for water-base mud containing the product of condensation of monoethanolamine and crude tall oils, solvent of class of aromatic or aliphatic petroleum hydrocarbons, monoethanolamine and oxal has additionally the product of interaction of pyrolysis resin from production of ethylbenzene and butylbenzene with toluene taken in the following ratio of components, wt.%: product of condensation of monoethanolamine and crude tall oils, 10-12; solvent of class of aromatic or aliphatic petroleum hydrocarbons, 10-30; product of interaction of pyrolysis resin from production of ethylbenzene and butylbenzene with toluene, 1.0-1.5; monoethanolamine, 0.5-0.7; oxal, the balance. Invention provides increase of longevity of rock-destruction tool, prevention of complications as result of liquid foaming or biodegradation of polymeric reagent-stabilizing agents, improvement of quality of productive layers opening as a result of decrease of interphase surface tension value of the liquid filtrate. EFFECT: improved technical- economical indices of drilling, improved quality and properties of mud. 4 tbl

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RU 2 182 587 C1

Authors

Grinevskij I.N.

Rakhmatullin R.K.

Andreson B.A.

Bochkarev G.P.

Umutbaev V.N.

Samatov R.M.

Chetvertneva I.A.

Dates

2002-05-20—Published

2001-08-23—Filed