SU1461879A1 - Arrangement for equipping production geological and process wells - Google Patents

Abstract

The invention relates to the mining industry, and in particular to devices for the equipment of geotechnological wells. The goal is to reduce the cost of equipment and operation of wells with two filters. The device includes a filter column (FK) with two filters, located inside the FK solution-lifting co.ypnu (RK) with a packer and a supply air column (BK) inside the RK. The packer is installed between the filters. In the wall of the Republic of Kazakhstan there are holes located between the tip and the packer. Valves in the form of a rubber diaphragm are installed in the holes in the Republic of Kazakhstan. The top of the diaphragm is fitted with a casing with holes. The lower end of the VK is located below the holes RK. The device also has pipelines for supplying the working solution and air, communicated by means of a pipe with the shut-off valves. The pipeline for supplying the working solution is in communication with the FC tip. The pipeline for supplying air is connected to the ends of the RK and VC and has a valve for depressing the air. When pumping the productive solution from the upper filter, the compressed air is supplied according to the RK. When pumping the solution from the bottom filter, the compressed air is supplied via the VC. The working solution is pumped into the upper filter when pumping from the lower filter is carried out according to FC. When the direction of motion of the solutions changes, compressed air is supplied in the Republic of Kazakhstan, and solution is supplied to the RC. When acidifying the productive horizon with pumping the solution through both filters without pumping, the solution is fed simultaneously in FC and B K. 2 Il. (O (L 4 05 00 co

Description

one

The invention relates to mining and can be used in the development of underground leaching of mineral deposits composed of rocks with sufficient permeability.

The purpose of the invention is to reduce the cost of equipment and operation of geotechnological wells with two filters.

FIG. 1 shows a geotechnological well, a vertical section; on

FIG. 2 shows the assembly of the device at the location of the openings with valves, a vertical section.

The device for equipping production geotechnological wells consists of a filter column i with an upper filter 2 and a lower filter 3 at the bottomhole end, a pipeline 4 for supplying a working solution communicated with the head of the filter column. located inside the filter column 1 of a solution-lifting column 5 with a packer 6 on a bottom-hole surface, installed in the gap between filters 2 and 3, and holes 7 in the wall between the tip and the packer 6, the air supply column 8 located inside the solution-lifting column S, and 9 dl pipeline supplying air connected with the tip of the solution-lifting column 5 and by means of the outlet 10 with valve 11 - with the tip of the air supply column 8. The solution-lifting column 5 is equipped with 7 valves installed in its openings in the form of an elastic, for example rubber, diaphragm 12, and safety covers 13 installed over the diaphragm 12 with 5 holes 14 located outside the limits of the diaphragm 12. Holes 7 are made in the core 15 connected to the solution-lifting column 5 by means of two adapters 16 and 17. Rubber diaphragm

When pumping out of the lower filter 3, the compressed air is supplied through the air supply column 8, while the valve 23 must be open. After opening the valve 23, the pressure in the solution-lifting column 5 decreases to atmospheric, the liquid level is restored, and the openings 7 on the core 15 are closed by a diaphragm 12. The air supplied through the air supply column 8 aerates the liquid in the solution-lifting column 5, which causes the liquid to be pumped out from the bottom filter 3. In connection with the fact that the airlift operation is based on the law of communicating vessels, one of which is a productive horizon 28 filled with liquid, and the other is a solution-lifting column 5, the lighter aerated mixture, and also due to the presence of filter resistance and the distance between filters 2 and 3, the pressure in

12 is worn on the core 15 with a definite 20. mortar column 5 when pumping

This ensures opening of the openings 7 only if the pressure in the solution-lifting column 5 exceeds the pressure in the filter column 1. The lower end of the air supply column 8 is located below the holes 7. The pipeline 4 is connected to the pipeline 9 by means of a pipe 18 with a valve 19. Pipeline 9 is equipped with a valve 20, a stack () in the area between the tip of the air supply column 8 and the point of connection of the pipe 18 with the pipe 9. The pipe and the conductor wires 21 and 22 for removing productive solutions are equipped with valves 23 and 24. Pipeline 9 is equipped with a valve eat 25, and pipe 4 - valve 26.

The device works as follows.

Filters 2 and 3 are installed respectively in the roof and basement of the ore body 27. When pumping out the top filter 2, the compressed air is supplied through the solution-lifting column 5 through the outlet 10, while the valve 23 is closed and the valve 24 is open. When air enters, the pressure in the solution column 5 increases, and the liquid level is pressed. An increase in pressure in the solution column 5 causes the openings 7 to open, and as soon as the liquid level is squeezed below the openings 7, the air through the openings 7 in the core 15 and the openings 14 in the protective casing enters the filter column 1 and aerates being 35

40

45

the lower filter 3 will be smaller than in the filter column 1, which excludes the possibility of opening the holes 7 on the core 15.

The working solution is pumped into the upper filter 2 when pumping from the lower filter 3 is carried out via pipeline 4 to the filter column 1. At the same time, the valve 24 must be closed. When the direction of movement of the process solutions in the well is changed, compressed air is supplied to the solution-lifting column 5 via outlet 10, and the working solution is supplied to the air supply column 8 through pipe 18, the valve 24 must be open, the valve 23 is closed, and the air pressure in the pipeline 9 has been previously released by means of a crane 20. The air supplied through the solution-lifting column 5 aerates the solution in the filter column 1, causing pumping out of the upper filter 2. The working solution is pumped in by air Hop supply column 8 under the liquid level in the solution-lifting column 5 and further through the bottom filter 3. When air is supplied through the solution-lifting column 5, the liquid level in it is located below the holes 7, therefore, to prevent compressed air from entering the air supply column 8, its lower end is set below the holes 7 , under the fluid level.

If it is necessary to pre-protect the liquid there, which causes pumping 50 of the acidification of the productive horizon 28 device from the upper filter 2. When pumping liquid from the upper filter 2 level-liquid in the solution-lifting column 5 goes below the holes 7 by an amount equal to the generalized loss of pressure, t that is, the pressure required to open the holes 55 of the 7 on the core 15 and the aerodynamic resistance to the movement of air in the holes.

The system allows pumping of the working solution through the upper 2 and lower 3 filters without pumping out, while the supply of the working solution must be made through the filter 1 and air supply 8 columns.

Claims (3)

The invention is a device for equipping operational geotechnological wells, including when pumping from the lower filter 3, the compressed air is supplied through the air supply column 8, and the valve 23 must be open. After opening the valve 23, the pressure in the solution-lifting column 5 decreases to atmospheric, the liquid level is restored, and the openings 7 on the core 15 are closed by a diaphragm 12. The air supplied through the air supply column 8 aerates the liquid in the solution-lifting column 5, which causes the liquid to be pumped out from the bottom filter 3. In connection with the fact that the airlift operation is based on the law of communicating vessels, one of which is a productive horizon 28 filled with liquid, and the other is a solution-lifting column 5, the lighter aerated mixture, and also due to the presence of filter resistance and the distance between filters 2 and 3, the pressure in solution lifting column 5 when pumping . solution lifting column 5 when pumping - ABOUT five 0 five the lower filter 3 will be smaller than in the filter column 1, which excludes the possibility of opening the holes 7 on the core 15. The working solution is pumped into the upper filter 2 when pumping from the lower filter 3 is carried out via pipeline 4 to the filter column 1. At the same time, the valve 24 must be closed. When the direction of movement of the process solutions in the well is changed, compressed air is supplied to the solution-lifting column 5 via outlet 10, and the working solution is supplied to the air supply column 8 through pipe 18, the valve 24 must be open, the valve 23 is closed, and the air pressure in the pipeline 9 has been previously released by means of a crane 20. The air supplied through the solution lifting column 5 aerates the solution in the filter column 1, causing pumping from the upper filter 2. The working solution is pumped through the air supply column 8 under the liquid level in the solution lifting column 5 and further through the bottom filter 3. When air is supplied through the solution-lifting column 5, the liquid level in it is located below the holes 7, therefore, to prevent compressed air from entering the air supply column 8, its lower end is set below the holes 7 below the liquid level. If it is necessary to pre-acidify the productive horizon 28 to set up the oxidation of the productive horizon 28, the device allows pumping the working solution through the top 2 and bottom 3 filters without pumping out, while the working solution must be fed through the filter 1 and air supply 8 columns. Claims An apparatus for equipping operational geotechnological wells, comprising a filter column with two filters at the bottom hole end, a pipeline for supplying a working solution connected to the head of the filter column, located inside the filter column, a slurry lifting column with a packer at the bottom hole end installed between the filters , and the holes in the wall between the tip and the packer, the air supply column located inside the solution-lifting column, and the pipeline for and air communication with the end walls and the air rastvoropodemnoy columns, characterized in that, in order to reduce equipment costs and operation geotechnological wells rastvoro- audio pipes with stop valve with the lifting column is provided with a piping of attributing vodom air inlet. mi in its holes with valves made as an elastic diaphragm, and a safety cover mounted over the diaphragm with openings located outside the aperture, the lower end of the air supply column is located below the openings of the solution lifting column, the pipeline for supplying the working solution is connected to the pipeline for supplying air to the air supply column through a pipe valves, and the pipeline for supplying air to the air supply column is equipped with a valve for depressing the air, installed in the area between air supply end cap and connection point 5 25, ZO L ; / W  M ZPV /// /// /////// /// // / 21 2-5 22 Р1 ° -8 P /// V27 Phie.1 Fie.2