SU969842A1 - Arrangement for cleaning filters of operated water wells - Google Patents

Description

The invention relates to the operation of groundwater intakes, vertical drainage to protect areas from underflooding and a system for recharging groundwater through injection pens.

The most effective and theoretically sound method for the recovery of water wells is the chemical method, which is widely used to intensify electricity.

The intensification of chemical treatments by electricity is carried out by hydrudynamic, thermal, and electrical effects on the filter and filter zone as it passes through the chemical reagent.

A device is known that includes coaxial cylinders, which form an electrolyzer with an annular electrode, an open bottom combustion chamber and an initiating device. In the electrolyzer, water decomposes. The oxygen-hydrogen mixture enters the combustion chamber, where it is ignited by the pulse supplied by the exhaust device 1.

The design of this device does not allow the use of an electrolyte in the electrolysis of a chemical prepared in the cavity of the well filter, which significantly reduces the functionality of the device, and the design is also complex.

Anodic electrolysis processes are not used to intensify the processes of destruction and dissolving of the colmatant on the filter, but lead to electrode wear (anode), which

10 not only reduces the efficiency of the device, but also significantly reduces its service life.

Closest to the proposed technical essence and the achieved effect

ts is a filter cleaning device. wells operated for water, which contains a power supply system, an electrode that forms an electrolyzer with a filter, and a non-conducting housing.

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Claims (2)

The principle of operation of the known device is that when a negative electric potential is applied to the electrode, and positive to the casing string, an electrical current arises in the chemical agent, which leads to anodic dissolution of the colmatant on the filter and to an intensive heat generation 2. However, the known device has a significant the disadvantage is that the energy that goes to the formation of explosive gases during the electrolysis decomposition of the chemical agent is not used for useful work. At the same time danger of explosion arises electrolysis gases at the wellhead. The purpose of the invention is to increase the efficiency of cleaning filters from colossal sediments by jointly affecting them with hydrodynamic and thermal disturbances. The goal is achieved by the fact that a device for cleaning the filters of water-operated wells, containing power supply systems, an electrode that forms an electrolyzer with a filter, and a non-conducting housing, is equipped with a bell with an initiator-replacer mounted on a non-conducting housing, and a packer, installed on the outer surface of the bell. The drawing shows the proposed device for cleaning operated on water wells. The device includes an electrode 1, which is a tube assembly, a bell 2, a non-conducting housing 3, an initiator-igniter 4, a sealing packer 5, a tip 6; tubing 7, nonconductive tubular screen 8, non-return valve 9. The power supply system contains a step-down transformer 10, a diode current rectifier 11, an igniter control unit 12 and a voltage regulator 13. The device is placed in the cavity of the filter i of the well filled with chemical reagent. A negative electric potential is applied to the electrode of the device, and a poloskitel is applied to the well filter through the casing. Electrolysis gases are collected under the bell of the device. The ignition of electrolysis gases by the initiator-igniter causes additional thermal and hydrodynamic perturbations of the chemical agent in the filter cavity, which greatly intensifies the processes of destruction and dissolution of clogging sediments, which in turn determines a more complete and effective cleaning of the filter surface and pore spaces of the infertile zone wells. The electric power sold by the proposed device is almost entirely used for useful work. Apparatus of the invention for cleaning the filters of water operated wells, containing a power supply system, an electrode forming an electrolyzer with a filter, and a non-conducting body, characterized in that, in order to increase the efficiency of cleaning filters from clogging sediments by jointly acting on hydrodynamic and thermal disturbances It is equipped with a bell with an initiator-igniter mounted on a non-conducting housing and a packer mounted on the outer surface of the bell. Sources of information taken into account in the examination. 1. USSR author's certificate number 195233, cl. B 06 B 1/02, 1967. 2. USSR author's certificate in accordance with the application N «2982362, cl. Е 03 В 3/18, 11.09.80. Hnofinpeccopy