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2 530 153

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(51)

IPC

E21B33/138(2006-01-01)

C09K8/46(2006-01-01)

(21) (22)

Application

2013102082/03, 2013-01-16

(24)

Start date

2013-01-16

(22)

Actual filing date

2013-01-16

(45)

Published

2014-10-10

(72)

Inventor

Akhrimenko Vjacheslav EfimovichPashchevskaja Natal'Ja Vjacheslavovna

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Agrarnyj Universitet"

GROUTING COMPOSITION FOR CEMENTING LOW-PRESSURE WELL Russian patent published in 2014 - IPC E21B33/138 C09K8/46

Abstract RU 2530153 C2

FIELD: chemistry.

SUBSTANCE: invention relates to oil and gas well casing. The grouting composition for cementing a low-pressure well includes 60.5-63.7 wt % portland cement, 0.61-1.53 wt % aluminium salt. The composition further includes 0.003-0.045 wt % oxyethylated alkylphenols 3-AI, 0.61-1.3 wt % carbonates, which are in the form of potassium or sodium carbonate, and water.

EFFECT: low density of the grouting mortar and improved sedimentation stability thereof.

1 tbl, 7 ex

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RU 2 530 153 C2

Authors

Akhrimenko Vjacheslav Efimovich

Pashchevskaja Natal'Ja Vjacheslavovna

Dates

2014-10-10—Published

2013-01-16—Filed