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2 106 472

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C1

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IPC

(21) (22)

Application

95117200/03, 1995-10-10

(22)

Actual filing date

1995-10-10

(45)

Published

1998-03-10

(72)

Inventor

Vasjukov V.A.Vakhrushev V.V.Pishchurov A.I.

(73)

Holder

Rossijskij Federal'Nyj Jadernyj Tsentr Vserossijskij Nauchno-Issledovatel'Skij Institut Ehksperimental'Noj Fiziki

FIRING-BLASTING DEVICE Russian patent published in 1998 - IPC

Abstract RU 2106472 C1

FIELD: oil and gas production industry. SUBSTANCE: this is used for secondary opening of bed. Effective performance of device is ensured at cutting out lengthy section of piping in well. Device has body with shaped charges located in different levels along its axis. Charges are kept in contact with detonation transmitting system. This system is arranged along axis of device. Shaped charges are positioned over spiral lines. Number of spiral lines corresponds to number of shaped charges in each level. Installed between shaped charges in each level are inserts made of explosive material which are detonation-connected to them. Charges and inserts are arranged uniformly over circumference in each level. In addition, circular charges are installed along axis of device between levels. Circular charges are detonation-connected with shaped charges of adjacent levels. Shaped charges are enclosed in modules made of inert material. EFFECT: higher efficiency. 2 cl, 4 dwg

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RU 2 106 472 C1

Authors

Vasjukov V.A.

Vakhrushev V.V.

Pishchurov A.I.

Dates

1998-03-10—Published

1995-10-10—Filed

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