SU33103A1 - Instrument for taking samples from the walls of boreholes - Google Patents

Description

The proposed device, the descent rod, for taking samples from the walls of boreholes, is equipped with steel boxes, which are pulled out along the guides through the holes in the casing tubes by the action of rotating gears mounted on the rod.

In FIG. 1 shows a vertical section of the device; FIG. 2 is a horizontal section of it; FIG. 3 is a vertical section of the instrument with a steel box removed from it for sampling; FIG. 4 is the same horizontal cut.

An ordinary casing pipe (Fig. 1-4) is provided on one side with two windows A. Steel windows with sharp edges of box 5 having a gear surface that interlocks with rammed D: rotating gears are inserted into these windows. mi K, for the purpose of pushing out the said boxes along the guides C through the windows A. Gears J are installed to avoid skewing the movement of the box B (Figs. 2 and 4).

When sampling rock from

after the well has been deepened to the desired depth and fixed by raKOi pipes to the bottom, the device on the rods is released into the well at the bottom and the pipes are removed and the wells to the packing gland E of the device. Then, the rotary key rotates the bolt D. This rotation is transmitted to the gears K, which pull the steel boxes B into the windows A, which cut into the rock. Wrapping the bar M to failure, reverse rotation is also performed to failure and remove the device from the well.

The subject matter of the invention

A device for taking samples from a borehole, descending on rods, characterized by the use of steel boxes B, which are extended along guides C through apertures A and casing, by the action of rotating gears 1C mounted on a rod. Moreover, in order to avoid a skew in moving the box B, gears 1C are installed: I- - To the AUTHOR'S certificate V.A. l., .. a; . Kal Kina M ZZIR ShSh

FIG. 3

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