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2 242 590

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IPC

(21) (22)

Application

2004105024/03, 2004-02-24

(24)

Start date

2004-02-24

(22)

Actual filing date

2004-02-24

(45)

Published

2004-12-20

(72)

Inventor

Kroshchenko V.D.Likutov A.R.Merkulov A.A.Uluntsev Ju.G.Dudaev S.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Nauchno-Issledovatel'Skij I Proektno-Konstruktorskij Institut Po Ispol'Zovaniju Ehnergii Vzryva V Geofizike"

DEVICE FOR PERFORATION OF WELL AND FORMING CRACKS IN WELL-ADJACENT BED AREA Russian patent published in 2004 - IPC

Abstract RU 2242590 C1

FIELD: oil extractive industry.

SUBSTANCE: device has assembly for generating gases ad assembly for perforating well, with cumulative charges. These are made in form of garland along device length and include at least two groups of charges. One of them provides for opening of well-adjacent area with channels having depth no less than radius of well mudding area. Another group of charges is set prior to first group of charges and follows it along device length and provides for opening well-adjacent area by channels with cross-section, in 1.1-6 times greater than cross-section of channels from first group charges. Device also has means for initiating its operation. Adjacent cumulative charges in each charge group and between charge groups are displaced relatively to each other in device cross section for equal and/or different angle in one and/or different directions of angle count.

EFFECT: higher effectiveness.

11 cl, 4 dwg

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RU 2 242 590 C1

Authors

Kroshchenko V.D.

Likutov A.R.

Merkulov A.A.

Uluntsev Ju.G.

Dudaev S.A.

Dates

2004-12-20—Published

2004-02-24—Filed