SOLID-PHASE COMPOSITION FOR PROTECTING INTRA-WELL-DRILLING EQUIPMENT AGAINST CORROSION Russian patent published in 2007 - IPC C23F11/14 

Abstract RU 2304637 C2

FIELD: oil, gas and condensate output.

SUBSTANCE: invention relates to reagents used for protection of intra-well-drilling equipment against corrosion. The composition comprises the following components, wt.-%L calcium stearate, 30.0-40.0; polyethylene oxide-4000, 54.0-63.0, and polyvinyl alcohol of sort 18/11, 6.0-7.0. Invention provides enhancing effectiveness of protection of intra-well-drilling equipment and pump-compressor pipe internal surface in gas-condensate holes against corrosion.

EFFECT: improved and valuable technical properties of composition.

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RU 2 304 637 C2

Authors

Bakanov Jurij Ivanovich

Kolesnichenko Vladimir Petrovich

Geras'Kin Vadim Georgievich

Zakharov Andrej Aleksandrovich

Nikitin Mikhail Mikhajlovich

Zhidenko Viktor Petrovich

Fedorov Konstantin Jur'Evich

Rud'Kov Nikolaj Aleksandrovich

Krivoruchko Pavel Evgen'Evich

Dates

2007-08-20Published

2005-05-20Filed