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2 362 793

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(51)

IPC

C09K8/08(2006-01-01)

(21) (22)

Application

2007136827/03, 2007-10-04

(24)

Start date

2007-10-04

(22)

Actual filing date

2007-10-04

(45)

Published

2009-07-27

(72)

Inventor

Khuzin Rinat RaisovichIbatullin Ravil' RustamovichKhisamov Rais SalikhovichTimirov Valentin SavdievichMesjatsev Vladimir IvanovichVakula Andrej JaroslavovichDerjabin Vladimir ViktorovichRylov Nikolaj Ivanovich

(73)

Holder

Khuzin Rinat Raisovich

DRILLING AGENT Russian patent published in 2009 - IPC C09K8/08

Abstract RU 2362793 C2

FIELD: oil and gas production.

SUBSTANCE: invention refers to drilling of oil and gas wells, particularly to drilling agents used mainly at exposure drilling of producing reservoirs. Drilling agent contains, wt %: polyacrylamide (PAA) - 0.15-0.3; carboxylmethyl cellulose - 0.3-0,05, soda ash Na₂CO₃- 0.3-0.5; biopolymer - "Saraksan" or "Saraksan-T" - 0.1- 0.2; water - the rest.

EFFECT: increased cutting-carrying capacity of bored rock, preventing mudding of producing reservoir, ie increased quality of exposure due to maintaining collecting properties of producing reservoir.

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RU 2 362 793 C2

Authors

Khuzin Rinat Raisovich

Ibatullin Ravil' Rustamovich

Khisamov Rais Salikhovich

Timirov Valentin Savdievich

Mesjatsev Vladimir Ivanovich

Vakula Andrej Jaroslavovich

Derjabin Vladimir Viktorovich

Rylov Nikolaj Ivanovich

Dates

2009-07-27—Published

2007-10-04—Filed