CARBOXYMETHYLATED CHEMICAL REAGENT FOR DRILLING FLUIDS Russian patent published in 1999 - IPC

Abstract RU 2127294 C1

FIELD: drilling of wells in petroleum refining and gas industries. SUBSTANCE: carboxymethylated lignocarbohydrate chemical reagent for drilling fluids is used in drilling fluids to regulate their properties. Carboxymethylated lignocarbohydrate chemical reagent comprises (wt %): 27-38 carboxymethylated cellulose; 15- 23 carboxymethylated lignin; 15-22 hemicellulose; 3-7 unsubstituted cellulose, lignin, hemicelluloses; 21-25 sodium chloride; 18.5-33.5 total content of carboxymethyl groups in the resulting carboxymethylated lignocarbohydrate chemical reagent. EFFECT: regulation of properties of drilling fluids and lower cost. 2 tbl

Similar patents RU2127294C1

Title Year Author Number
METHOD OF CARBOXYMETHYLATION OF LIGNOCARBOHYDRATE MATERIALS 1996
  • Galochkin A.I.
  • Markin V.I.
  • Bazarnova N.G.
  • Zastavenko N.V.
  • Krest'Jannikova N.S.
RU2130947C1
METHOD OF CARBOXYMETHYLATION OF LIGNOCARBOHYDRATE MATERIALS 2014
  • Markin Vadim Ivanovich
  • Bazarnova Natal'Ja Grigor'Evna
  • Katrakov Igor' Borisovich
RU2556933C1
METHOD OF CARBOXYMETHYLATION OF LIGNOCARBOHYDRATE MATERIALS 1998
  • Bazarnova N.G.
  • Tokareva I.V.
  • Galochkin A.I.
  • Markin V.I.
RU2135517C1
METHOD FOR SYNTHESIS OF CROSS-LINKED CARBOXYMETHYLATED LIGNIN-CARBOHYDRATE MATERIAL 2010
  • Markin Vadim Ivanovich
  • Bazarnova Natal'Ja Grigor'Evna
  • Kolosov Petr Vladimirovich
RU2436797C1
METHOD OF CARBOXYMETHYLATION OF LIGNIN CARBOHYDRATE MATERIALS 2010
  • Markin Vadim Ivanovich
  • Kolosov Petr Vladimirovich
  • Bazarnova Natal'Ja Grigor'Evna
  • Zazdravnykh Ljudmila Jur'Evna
RU2442794C2
PEAT CARBOXYMETHYLATION METHOD 2017
  • Efanov Maksim Viktorovich
  • Yagovitin Denis Vyacheslavovich
RU2656461C1
METHOD OF OBTAINING CARBOXYMETHYLATED LIGNOCARBOHYDRATE MATERIAL UNDER EFFECT OF MICROWAVE RADIATION 2008
  • Markin Vadim Ivanovich
  • Mikhailidi Aleksandra Mikhajlovna
  • Bazarnova Natal'Ja Grigor'Evna
RU2393169C1
METHOD OF SULFOALKYLATION OF LIGNOCARBOHYDRATE MATTER 2001
  • Galochkin A.I.
  • Anan'Ina I.V.
  • Goncharova Ju.A.
RU2208016C2
METHOD FOR SULFOALKYLATION OF LINGO-CARBOHYDRATE MATERIALS 2001
  • Galochkin A.I.
  • Anan'Ina I.V.
  • Goncharova Ju.A.
RU2203903C1
METHOD OF SULFOMETHYLATION OF LIGNOCARBOHYDRATE MATERIALS 2000
  • Galochkin A.I.
  • Anan'Ina I.V.
  • Il'Ina N.V.
RU2193568C2

RU 2 127 294 C1

Authors

Bazarnova N.G.

Galochkin A.I.

Markin V.I.

Tokareva I.V.

Gorulev O.A.

Blonskij A.G.

Chubik P.S.

Godunov E.B.

Dates

1999-03-10Published

1997-10-28Filed