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2 315 857

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(51)

IPC

E21B43/117(2006-01-01)

(21) (22)

Application

2005129375/03, 2005-09-20

(24)

Start date

2005-09-20

(22)

Actual filing date

2005-09-20

(45)

Published

2008-01-27

(72)

Inventor

Potapov Valerij AvdeevichLevin Vladimir GenrikhovichSlepnev Anatolij ViktorovichJatsenko Aleksandr ViktorovichMarochkin Vladimir Aleksandrovich

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie

SHAPED CHARGE FOR PERFORATOR AND SHAPED CHARGE PRODUCTION METHOD Russian patent published in 2008 - IPC E21B43/117

Abstract RU 2315857 C2

FIELD: oil and gas industry, particularly shaped-charge perforators.

SUBSTANCE: shaped charge comprises body with profiled explosion charge arranged in the body. The explosion charge comprises charge hollow covered with facing structure. Facing structure is made of powder cuprum-wolfram composition, which additionally contains titanium, boron, nickel and aluminum powders. Method involves mixing said powders in ball mill for 2-3 hours, pressing facing structure and sintering thereof. First of all obtained preform is compressed with 1-2 tons/cm² force. Then mold with preform is heated up to 650-700°C up to oxidation-reduction exothermal reaction initiation. After oxidation-reduction reaction initiation facing structure is finally shaped with 3-5 tons/cm² force applied thereto with following 3-5 min time-delay. Then facing is cooled.

EFFECT: simplified technology of facing production technology and increased penetrating efficiency.

3 cl, 1 tbl

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RU 2 315 857 C2

Authors

Potapov Valerij Avdeevich

Levin Vladimir Genrikhovich

Slepnev Anatolij Viktorovich

Jatsenko Aleksandr Viktorovich

Marochkin Vladimir Aleksandrovich

Dates

2008-01-27—Published

2005-09-20—Filed