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2 177 492

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IPC

(21) (22)

Application

99127889/03, 1999-12-29

(24)

Start date

1999-12-29

(22)

Actual filing date

1999-12-29

(45)

Published

2001-12-27

(72)

Inventor

Balaba V.I.Konovalov E.A.Lygach V.N.Nozdrja V.I.Samorukova V.D.

(73)

Holder

Balaba Vladimir IvanovichKonovalov Evgenij AlekseevichLygach Viktor NikiforovichNozdrja Vladimir IvanovichSamorukova Valentina Dmitrievna

ADDITIVE FOR DRILLING MUD COMPOSITIONS Russian patent published in 2001 - IPC

Abstract RU 2177492 C2

FIELD: drilling of wells, particularly, preparation and regulation of properties of drilling mud compositions. SUBSTANCE: use is made of titanium-magnetite apatite concentrate which comprises, %: iron oxides Fe₂O₃ and FeO, up to 80; titanium oxide, -TiO₂ up to 19; MgO, up to 1 and phosphorus oxide P₂O₅, at least 0.2 as additive for drilling mud compositions. EFFECT: improved properties of the additive. 2 tbl

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RU 2 177 492 C2

Authors

Balaba V.I.

Konovalov E.A.

Lygach V.N.

Nozdrja V.I.

Samorukova V.D.

Dates

2001-12-27—Published

1999-12-29—Filed