DEVICE FOR FRACTURING Russian patent published in 2016 - IPC E21B43/26

Abstract RU 2572631 C2

FIELD: mining.

SUBSTANCE: invention relates to device for fracturing the stratum around the well tubular structure. The latter comprises metal tubular part arranged as the part of the well tubular structure. Stretching metal collar of definite wall depth envelops said tubular part. Said collar is attached to said tubular part by appropriate fastener. The hole is made in said tubular part or in said fastener. Besides, this invention discloses the fracturing of stratum surrounding said well tubular structure.

EFFECT: higher efficiency of fracturing.

14 cl, 16 dwg

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RU 2 572 631 C2

Authors

Khejzel Pol

Khallunbek Jergen

Dates

2016-01-20—Published

2011-06-30—Filed