RU1827414C - Method and device for treatment of filter zone of water intake holes - Google Patents

Abstract

SUMMARY OF THE INVENTION: the filter zone is treated with ultrasonic vibrations and the products of destruction are pumped out. Before treatment, a gaseous agent is injected into the filter zone. The packers are located on a water column muffled from the bottom end above and below the passage openings. An ultrasonic vibration generator is installed between the packers with a gap relative to the lifting column and packers. The air pipe is partially placed in the column. The column in part. located above the well, is equipped with a sealed head with a valve and a nozzle for supplying a gaseous agent. The lower end of the pipe is located at the bottom of the column. 2 sec P. f-ly, 1 ill.

Description

The invention relates to the extraction of groundwater through wells.

The purpose of the invention is to achieve maximum permeability to the filter space, i.e., to increase the efficiency of aquifer development.

The goal is achieved in that before processing the filter and the filter layer of the aquifer with ultrasound, a gaseous agent is injected into the aquifer. The reservoir, within which the gaseous agent bubbles will be located, will receive a more active effect from the side of ultrasonic vibrations, since ultrasound acts on the fluid through the gas bubbles present in it.

To implement the method, the device shown in the drawing is provided.

The interior of the water well is separated from the aquifer by filter 1. In order to process the filter in separate sections by its height, the treated section is isolated from the rest of the filter by pneumatic packers 2. The flow of ultrasonic vibrations creates an ultrasonic oscillator 3, worn on the lifting column 4 with a gap, and also with the provision of gaps between the packers 2 and the ends of the ultrasonic vibrations generator 3, and in the wall of the lifting column 4 in the area bounded by the packers 2 There is a perforation through which small particles enter the water column 4, which have penetrated through the filter 1 into the well in the area isolated by the packers 2. Above the wellhead, the water column 4 is sealed

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with a head 5 ending with a valve 6. A nozzle 7 is connected to the head 5, and an air pipe 8 is lowered through the head 5 to the bottom of the lifting column 4. The air duct 9 is designed to supply compressed air to the packers 2,

The operation of the device is as follows. The lifting column 4 with the packers 2 mounted on it and the ultrasonic vibration generator 3 is lowered into the well to a depth at which the section of the filter 1 intended for processing is between the packers 2. To create a seal by means of the compressors 2, compressed air is supplied through the duct 9. With the shutter 6 closed, compressed air is supplied to the nozzle 7, it displaces the water and saturates the aquifer. The output of compressed air through the air pipe 8 will serve as a signal to stop the supply of daily air through the pipe 7. After that, a hose from the compressor for supplying compressed air is connected to the upper end of the air pipe 8. The valve 6 opens, the ultrasonic oscillation generator 3 is turned on and compressed air is supplied through the air pipe 8. The compressed air, leaving the lower end of the air pipe 8, forms, mixing with water, inside the water-lifting pipe 4 a water-air emulsion, the specific gravity of which is less than the specific weight of water, due to this, water enters together with small particles from the aquifer into the filter along the length of the area allocated by the packers 2, and then it is pumped out through the perforation of the water-lifting pipe 4 and then through the pipe through the head 5, о exist before clarification of water. After that, the supply of compressed air through the air pipe is stopped at the same time or a little later than the stop of the ultrasonic oscillation generator. Pressure is relieved

inside the packers, the structure moves down or up the filter 1 to the next section to be processed.

If the hydrogeological conditions or technical equipment do not allow the use of airlift, then another pumping device can be used,

The feasibility of the proposal lies in the fact that when using it, it is possible to obtain higher production rates of the well and increase its life.

Claims (2)

1. (Dusob treatment of the filter zone of water wells, including the processing of the filter zone by ultrasonic vibrations and pumping of the destruction products, characterized in that before processing by ultrasonic vibrations, a gaseous agent is pumped into the filter zone, 2. A device for treating the filtering zone of water wells, comprising a water-lifting column muffled from the lower end with passage openings on the side surface, packers located on the water lifting column above and below the passage openings, an ultrasonic oscillation generator installed between the packers with a gap with respect to a lifting column and packers, and an air pipe partially located in the lifting column, characterized in that the lifting column in the part located above the well is equipped sealed jib tip with the valve and nozzle for supplying a gaseous agent, and the lower end of the air tube placed at the bottom of water-lifting column.