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2 065 933

(13)

C1

(51)

IPC

(21) (22)

Application

94010081/03, 1994-04-01

(22)

Actual filing date

1994-04-01

(45)

Published

1996-08-27

(72)

Inventor

Burtsev V.V.Rabinovich E.M.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Ehksperimental'Noj Fiziki

HOLLOW-CONE CHARGE OF PERFORATOR Russian patent published in 1996 - IPC

Abstract RU 2065933 C1

FIELD: petroleum industry. SUBSTANCE: in opening of holes basically oil holes and to increase depth of channel made in ground by perforator it has body containing explosive material with shaped charge recess which is formed by tapered surface and lined. Minimal radius of tapered surface of lining relates to its maximal radius as 0.35:0.7. Additionally, at each cross section of device, ratio of hollow-charge recess to its outer diameter is at least 0.6. Besides, cone formed by shaped charge recess has rounded apex. Angle of half-span of cone is 19-23o. EFFECT: high efficiency. 23 cl, 1 dwg

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RU 2 065 933 C1

Authors

Burtsev V.V.

Rabinovich E.M.

Dates

1996-08-27—Published

1994-04-01—Filed

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