Show metadata Hide metadata

(19)

(11)

2 224 780

(13)

(51)

IPC

(21) (22)

Application

2002119246/03, 2002-07-16

(24)

Start date

2002-07-16

(22)

Actual filing date

2002-07-16

(45)

Published

2004-02-27

(72)

Inventor

Gajfutdinov G.Sh.Safin D.Kh.Vakhrushev L.P.Andreson B.A.Ashikhmin G.P.Sharifullin R.R.Akhmetov R.M.Giljazov R.M.Koshelev V.N.Gibadullin N.Z.Makarov G.M.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

POLYGLYCOL DRILLING FLUID MODIFIER Russian patent published in 2004 - IPC

Abstract RU 2224780 C1

FIELD: drilling fluids. SUBSTANCE: invention relates to boring oil and gas holes, in particular to additives for drilling fluids used during exposure of oil strata and well completion. Modifier contains 90.0-00.0% polyglycol with molecular weight 100-700 and 0.1-10.0% ethylene oxide/propylene oxide block copolymer having molecular weight 3000-8000 and content of ethyl oxide blocks. When preparing indicated block copolymer, triethanolamine, triisopropanolamine, tetraisopropanolethylenediamine, and glycerol are used. As above-indicated polyglycol, diethylene glycol and dipropylene glycol production still residues are utilized. EFFECT: imparted required level of inhibiting and surfactant properties and reduced foam formation. 3 cl, 6 tbl

Similar patents RU2224780C1

Title	Year	Author	Number
DRILLING MUD MODIFYING AGENT	2004	Safin Damir Khasanovich Ashikhmin Gennadij Petrovich Gajfutdinov Gamil' Shajkhutdinovich Sharifullin Rafaehl' Rifkatovich Makarov Gennadij Mikhajlovich	RU2286373C2
WELL DRILLING AND COMPLETION COMPOSITION	2000	Koshelev V.N. Vakhrushev L.P. Safin D.Kh. Pen'Kov A.I. Rastegaev B.A. Sharifullin R.R. Chenikova N.A. Belenko E.V.	RU2169753C1
CLAY-FREE DRILLING FLUID FOR EXPOSING PRODUCTIVE FORMATIONS	1999	Pen'Kov A.I. Koshelev V.N. Kuksov V.A. Vakhrushev L.P. Belenko E.V. Rastegaev B.A.	RU2168531C1
METHOD OF PREPARING DEMULSIFIER	1999	Serebrjakov B.R. Safin D.Kh. Nurullina I.I. Belokurov V.A. Kolosov S.A. Atnjukov K.N.	RU2151780C1
DEMULSIFIER PREPARATION METHOD	2001	Safin D.Kh. Nurullina I.I. Tjunin M.I. Gabdulkhakova A.Z. Gabdulkhakova N.S. Shepelin V.A. Chebareva A.I.	RU2209231C2
COMPOSITION FOR DESTRUCTION OF WATER-OIL EMULSIONS AND PROTECTION OF OIL FIELD EQUIPMENT FROM ASPHALTENE-RESIN-PARAFFIN DEPOSITS AND CORROSION	2001	Varnavskaja O.A. Khvatova L.K. Ugrjumov O.V. Lebedev N.A. Fakhrutdinov B.R. Rakhmatullina I.Ju. Demikhov V.N.	RU2185400C1
METHOD FOR PREPARING STATISTICAL COPOLYMERS OF PROPYLENE AND ETHYLENE OXIDES WITH ENHANCED VISCOSITY AND THICKENING ADDITION AGENT BASED ON THEREOF	2004	Busygin V.M. Safin D.Kh. Belokurov V.A. Sharifullin R.R. Galimzjanov R.M. Shushljaev S.I. Atnjukov K.N.	RU2266923C1
DRILLING AGENT WITHOUT SOLID PHASE	2007	Jakhshibekov Feliks Rudol'Fovich Rassadnikov Vladimir Ivanovich Lushpeeva Ol'Ga Aleksandrovna Provodnikov Gennadij Borisovich Loseva Nina Timofeevna	RU2344154C2
FOAMING COMPOSITION FOR REMOVING LIQUID FROM GAS WELLS	0	Zakirov Sumbat Nabievich Kondrat Roman Mikhajlovich Volkov Yurij Mikhajlovich Abdullina Lyubov Leonidovna Ostashov Valentin Maksimovich Andrejchuk Vasilij Mikhajlovich Kovalko Mikhail Petrovich	SU1164402A1
DRILLING MUD	0	Solomchenko Nina Yakovlevna Sledkov Vladimir Vladimirovich Shits Leonid Aleksandrovich Bystritskij Georgij Iosifovich	SU1451154A1

RU 2 224 780 C1

Authors

Gajfutdinov G.Sh.

Safin D.Kh.

Vakhrushev L.P.

Andreson B.A.

Ashikhmin G.P.

Sharifullin R.R.

Akhmetov R.M.

Giljazov R.M.

Koshelev V.N.

Gibadullin N.Z.

Makarov G.M.

Dates

2004-02-27—Published

2002-07-16—Filed