SU1520465A1 - Device for setting geothermal studies in bottom silts of water areas - Google Patents

Abstract

The invention relates to geophysical equipment and can be used to increase the efficiency of geothermal research in the waters. The purpose of the invention is the possibility of recording thermophysical parameters of precipitation in their natural occurrence with any given step. The device contains an airtight container with equipment and an electric motor, a sleeve in the form of a hollow cylinder with a protrusion on its inner surface, mounted on the sampler pipe with the possibility of rotation in the lower part and subsequent vertical movement, and needle probes fixed on the sleeve with the tip upwards. A guide groove is made on the sampler pipe, corresponding to the protrusion of the sleeve, curved at the bottom. After the probe has been inserted into the bottom sediments with an electric motor connected to the sleeve by flexible couplings, it is rotated and then moved along the sampler. Together with the sleeve, the needle probes registering the thermophysical characteristics of undisturbed sediments rotate and move upward, with any given step along the entire length of the introduction of the sampler. 3 il.

Description

The invention relates to geophysical equipment and can be used to improve the efficiency of geothermal studies in water areas, in particular, to determine temperatures, their gradients and thermal conductivity of bottom sediments.

The purpose of the invention is the registration of thermophysical parameters of precipitation.

in their natural occurrence with any given step

Figure 1 shows the device, a general view; in FIG. 2 - the same, side view v in FIG. 3 - section A-A in FIG. 1.

The device contains an airtight container 1 with an apparatus and a transfer mechanism consisting of an electric motor 2 and brought out

reels 3, sampler 4, needle probes 5 rigidly fixed upward on sleeve 6 with brackets 7 of thermal insulation material. The container is connected to cable cable 8. Sleeve 6, filled in the form of a hollow cylinder, is movably mounted on the pipe of the sampler 4 and connected to reels 3 by means of flexible links 9, for example thin cables

On the inside of the sleeve there is a protrusion 10, made in the form of a screw, and a groove 11. In the lower part of the sampler 4, there is a spring-loaded non-return valve 12 with a pin 13 rigidly fixed on it and a hole 14 corresponding to it. for engagement with the protrusion 10 of the sleeve, the curved in the lower part and the longitudinal in the upper part of the Curved (screw) part of the groove 15 is made on 1/4 of the outer surface of the pipe

The device works as follows

On the vessel, the movable sleeve b with needle probes 5 fixed to it by means of brackets 7 is installed in the initial position in the lower part of sampler 4 so that its projection 10 is located at the beginning of the guide groove 15, and the pin 13 enters the groove 11 of the sleeve. Then, the device is lowered to the bottom of the reservoir by means of a cable 8 connected to a hermetic container with equipment. Under the action of its own weight or with the help of cargo-desires, the sampling tube 4 goes deeper into the bottom loose soil, which at the same time fills it

The sleeve 6 in the initial position holds the pin 13, which passes through the hole 14 of the pipe and enters the groove 11 of the sleeve. In order for the sleeve 6 to rise upwards, it is necessary to lift the container 1 with the sampling tube 4 with the cable cable 8. Under the force of the extracted soil, the valve 12 rotates and blocks the sampling tube opening 4- The pin 13 will exit from the groove 11 and the hole 14 "Then the signal turns on the electric motor 2 and the flexible connections, winding on the drum 3, drives the sleeve 6 and

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needle probes 5, which are connected to it with brackets 7. At the same time, they first rotate smoothly through 90, and then straight up along the sampler pipe. Needle probes with temperature-sensitive elements and heaters record the temperature and. thermal conductivity of sediments not disturbed by the introduction of the probe into them. Thermal characteristics are measured continuously over the entire height of the immersion in the bottom sediments of the sampler pipe at any given step. The data obtained along the lines are transmitted to the registering equipment of the container, and then by cable to the ship. After all measurements have been taken, the device rises. A sample of bottom sediment is removed from the sampler pipe and transferred for analysis.

The use of the proposed device makes it possible to increase the reliability and informativeness of geothermal measurements in the bottom sediments of water areas due to the possibility of discrete-continuous measurements of thermophysical measurements of sediments in their natural occurrence along the entire probe insertion length.

Claims (1)

Invention Formula A device for conducting geothermal studies in bottom sediments of water areas containing an airtight container with equipment, a sampler, needle probes mounted on its outer part by means of brackets, characterized in that., In order to record the thermal physical parameters of sediments in their natural occurrence with any given step, increasing the reliability and informativeness of the measurements, a sleeve has been inserted into it. and a mechanism for moving, the sleeve is made in the form of a hollow cylinder with a protrusion on its inner surface and mounted on the sampler with the possibility of its rotation around the vertical axis in the lower part and subsequent vertical movement, a guide groove is made in the sampler to accommodate the bushing protrusion in it, and the needle probes are fixed on the bushing with the tip up VV Фа8.1 eight x