SU24853A1 - Instrument for determining the curvature of boreholes - Google Patents

Description

In the proposed tool for determining the curvature of boreholes, the inventor, for fixing light rays from light bulbs on photosensitive paper superimposed on the inner side of the drum, is placed in a hollow cylindrical magnet suspended on a cardon suspension. Light bulbs, rays of light from which pass through the holes on the end surface of the cap mounted on the magnet rod with the help of rollers or needles.

In FIG. 1 shows a vertical section of the proposed device; FIG. 2 - the same, a section along the line / - / in FIG. one.

A part C with two protrusions inside is screwed into the cylindrical casing L (Fig. 1) on which part D is mounted with a clock mechanism F fastened to its racks d, d by a current source D, a hemisphere G with a hollow cylindrical magnet Z and a h-shaped cap truncated cone and drum J with photosensitive paper on the inside. From above, the drum U is closed with a K-shaped cross-shaped spring cover / C that presses N part U screwed into the casing. B and fi are inserted into the casing B, fi with rollers Ь, 6, springs which survive laterally and serve to move the device along the borehole walls

lowering the device. Part - B is screwed with head A, and part B is nut Xj, which also serves to connect with a cable or rod. The hemisphere G is reinforced in the cardan ring a, a-, and its rotation around one of the axes takes place on the screws dz. "2 passing through the racks d, d. On the hollow base there is a hollow cylindrical magnet Z with inserted electric bulbs and a vertical axis L, on a ball bearing e, which has a truncated cone-shaped cap H, which is in the lower part of the ring L and L and having four diametrically on the lateral surface located holes oh oh There is a small air gap between magnet Z and ring L, L imets. The electric lamps are connected to a dry battery, the current whose closure is made by the clock mechanism F, which has, instead of an arrow, the rod / i, which touches the cathode / a. Working with the device consists of the following. Plant clockwise F, and lower the instrument into. a well to a depth at which it is desirable to determine its deviation and direction (the time of lowering the device is calculated in advance). When the device reaches its depth, the current closes, the light rays from the bulbs pass through the holes o, and

and on the photosensitive paper /, the drum Y is obtained points. If the well deviates from the vertical, the hemispheres G will assume a vertical position. When rotating the magician Z near the vertical axis and changing its position, the cap H does not rotate, since the magnetic lines of force of the magnet Z are evenly distributed in the gap between the ring L, L and the magnet, as a result of which the ring is equally attracted slightly). Thus, from the recorded light points obtained on the photosensitive paper, it will be possible to determine the deviation

and well direction.

The subject matter of the invention.

A device for determining the curvature of boreholes, characterized in that, in order to fix onto the photosensitive paper / superimposed on the inner surface of the drum J, light rays from light bulbs placed in a hollow cylindrical magnet Z ,. hinged on gimbal gimmer Y1 - a-i, are the even holes O, cut in the cap I, mounted on the rod I with the help of needle-sludge rollers.