BOREHOLE DEVICE FOR HYDRAULIC FRACTURING OF ROCKS Russian patent published in 2021 - IPC E21C37/06 E21B43/267 

Abstract RU 2760271 C1

FIELD: mining industry.

SUBSTANCE: invention relates to the field of mining. The borehole device for hydraulic fracturing of rocks contains a housing made in the form of a cylinder with a passage cavity and a radial hole for the passage of the working fluid, sealers with tips mounted on both sides of the housing coaxially with it, and a locking mechanism with a spring mounted inside a cylindrical cavity. The passage cavity in the housing at the inlet of the working fluid has a larger diameter than at the outlet. An additional cylindrical cavity is made in the wall of the housing coaxially with the radial hole. The locking mechanism is made in the form of a check valve with a spring and is installed in an additional cylindrical cavity. From the outside, the additional cylindrical cavity is closed with a locking plug with a central hole. The radial hole is made from an additional cylindrical cavity into a passage cavity of a larger diameter.

EFFECT: increase in the efficiency of hydraulic fracturing of rocks.

1 cl, 3 dwg

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RU 2 760 271 C1

Authors

Klishin Vladimir Ivanovich

Anferov Boris Alekseevich

Kuznetsova Lyudmila Vasilevna

Khudyntsev Evgenij Aleksandrovich

Opruk Gleb Yurevich

Klishin Sergej Vladimirovich

Dates

2021-11-23Published

2021-04-06Filed