DEVICE FOR FORMATION OF DIRECTED FRACTURES IN WELLS Russian patent published in 2002 - IPC

Abstract RU 2182968 C1

FIELD: mining; applicable in formation of initiating fracture in well, presetting the orientation of rock fracturing plane in mining of valuable crystalline raw materials and stone, construction of roads and tunnels in mountainous regions, and breakage of oversizes. SUBSTANCE: device includes a tube with circular stop at its end and longitudinal slots, and a rod located in the tube for longitudinal motion. The tube is filled with non-Newtonian fluid. A disc spring with the top facing the rod is installed on the tube end from side of circular stop. The rod has a transverse hole into which stem is installed which runs through longitudinal slots. EFFECT: increased efficiency of device operation, reduced time for rock fracturing, simplified design of device. 4 cl, 3 dwg

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RU 2 182 968 C1

Authors

Kju N.G.

Novik A.V.

Frejdin A.M.

Dates

2002-05-27—Published

2001-01-09—Filed