UA140571U - PNEUMATIC PULSE METHOD OF RESTORATION OF DEFECTION OF WATER INTAKE WELLS TOGETHER WITH THE METHOD OF PIPE REGENERATION SYSTEM WITH APPLICATION OF APPLICATION - Google Patents

Abstract

A method of restoring the flow rate of water intake wells by the combined effect of the pneumopulse method together with the method of a annular regeneration system using an airlift slurry pipeline, including the restoration of the flow rate of water intake wells. Simultaneous processing by pulse and reagent methods is provided. Destroyed clogging on the filter and in the filter zone of the water intake well is dissolved by reagents and partially removed from the well due to the airlift effect.

Description

The useful model belongs to the field of intensification of water intake wells.

A well-known model of impulse treatment of water intake wells with a deep pneumatic cartridge (11 with the use of an airlift pulp pipeline |21.

The essence of the method is the use of a pneumatic cartridge - a device that provides periodic exhausts into a liquid environment of discrete amounts of air compressed to high pressure.

Exhausts generate disturbances in the form of pressure waves and rarefaction waves. Thus, repression and depression are repeatedly created in the well at the level of the filter column. Such pressure fluctuations in the well allow to destroy the colmatant on the filter and in the filter area. During pneumoimpulse treatment, the destroyed colmatant is removed from the well thanks to the airlift slurry pipeline.

The disadvantage is that this technology does not give a high effect without further reagent treatment.

A useful model of a water intake well is known, which has injection nozzles in the cavity between the production column and the conductor with perforations in the lower part in the area of gravel filling (|З) The proposed design of the well allows timely preventive measures to regenerate the filter and the filter area from clogging deposits by reagent method I |4Y. At the same time, the proposed design can be implemented both during the construction of a new water intake well and during the reconstruction of an existing one.

The disadvantage of this design is the impossibility of completely removing the clogging deposits due to the absence of pulse impact, which allows to destroy and crush the clogging agent.

The task is solved by the fact that the method of restoring the flow rate of water intake wells by the combined effect of the pneumatic pulse method together with the method of the annular system of regeneration with the use of an airlift slurry pipeline, which includes the restoration of the flow rate of water intake wells, according to the useful model, is provided by simultaneous processing by pulse and reagent methods; the destroyed colmatant on the filter and in the filter area of the water intake well is dissolved by reagents and partially removed from the well due to the airlift effect.

In the method of restoring the flow rate of water intake wells by the combined effect of the pneumatic pulse method together with the method of the annular system of regeneration with the use of

From the air lift slurry pipeline, the following methods are combined: the method of pneumoimpulse impact using the air lift slurry pipeline and the circulation-reagent method of washing the filter of the water intake well, and we get the following scheme (drawing).

New features of the proposed useful model are that the destroyed colmatant is dissolved by reagents and partially carried out of the well due to the airlift effect, while simultaneous treatment by impulse and reagent methods is provided.

The use of a new method will make it possible to regenerate filters and the pre-filter zone of water intake wells as efficiently as possible.

The essence of the useful model is explained by the drawing, where the drawing shows the pneumatic impulse method of restoring the flow rate of water intake wells together with the method of the annular system of regeneration with the use of an airlift pulp pipeline.

As shown in the drawing, the pneumatic cartridge 8 is immersed in the water intake well 1, which is above the ground level C and equipped with filter circulation tubes 2, to the level of the filter 10. At this moment, the reagent is fed through the tubes 2 under pressure with the help of a pump. Along with the suction of acid, which destroys the colmatant on the filter frame, compressed air is supplied from the compressor through the high-pressure hose 4 and through the steel pipeline 12 to the pneumatic cartridge 8 and a pneumatic explosion occurs, which ensures the maximum degree of cleaning of the filter from the colmatant and the destruction of the clogging deposits in the filter area. After the explosion, the compressed air 9 together with the water forms a water-air mixture 6, which rises to the outside through the airlift slurry pipeline 5.

With the correct selection of the parameters of pneumatic pulse influence (pressure in the pneumatic cartridge, volume of the receiver of the pneumatic cartridge, diameter of pulp lines, frequency of pulses, etc.), the destroyed colmatant is removed from the well |5). To prevent the impact of the explosion on the oil seal 7, the packer of the air lift - pulp pipe 11 must be located below the oil seal 7: with a well filter diameter of up to 200 mm inclusive - lower by 200 mm; - if the diameter of the well filter is from 200 mm to 300 mm inclusive - 400 mm lower; - if the diameter of the well filter is more than 300 mm inclusive - lower by 600 mm.

Simultaneously with the inflow of water from the well into the formation, the reagent solution moves from injection tubes 2 to well 1. This ensures simultaneous processing by impulse and reagent methods. (510)

Sources of information: 1. Pat. 44462 Ukraine, IPC VO8B 9/04 (2009.01). Pneumatic cartridge |Text)| / Tears of L.G.; the applicant and owner of the patent is the Donbass National Academy of Construction and Architecture. - Me and 200902414; statement 18.03.2009; published 12.10.2009, Bull. Mo 19. (Analogs. 2. Pat. 90855 Ukraine, IPC VO8B 9/04 (2006.01) / Mo 201400531; application 01.20.2014; publ. 06.10.2014, Bull. Mo 11. Device for increasing the efficiency of pneumatic pulse treatment of water intake wells (air lift pulp tube) Nezdoyminov V.1I., Lesnoy V.I., Dmitrov P.O.,

Goldin I.S. (Prototypes. 3. Pat. 9435 Republic of Belarus, IPC C1, E21B 43/00, VOZV 03/00. Construction of a water intake well with rotary drilling / V.V. Ivashechkin, A.N. Kondratovich, I.A. Gerasimeniuk, N.Y.

Kruk, I.V. Ryitko /Official Bull. /tsntr intellectual. property 2006. I (Analogs. 4. Mvashechkin V.V. Experimental research of a vessel equipped with a ring-shaped reagent flushing system. /Ivashechkin V.V., Avtushko P.A., Koledyuk D.A. //Hydrology (Department of Hydraulics). - 2010 - pp. 80-87. 5. Lesnoi, V.Y. The main parameters of the impact of pneumatic explosion on the filter and pre-filter area of water intake wells / IMY Lesnoi, V.M. Nezdoymynov, P.A.

Dmytrov // Bulletin of the Donbas State Academy of Construction and Architecture. Engineering systems and technogenic safety in construction: 3b. of science pr. - Makiivka: DonNnNABA, 2013. - Vp. 2013. - 5 (103). - P. 130-136.

Claims (1)

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