SU1557366A1 - Arrangement for withdrawing liquid from well - Google Patents

Abstract

This invention relates to technical means for pumping fluid from a well. The purpose of the invention is to increase the efficiency of using the device by providing an explosion at a predetermined depth. The assembled device is lowered into the well and immersed in water. When a certain depth is reached, the liquid column presses on the piston 9 and brings the rod 10 closer to the igniter 18. At a certain pressure value, the spring 19 is compressed and punctures the ignition initiator 18. The detonating cord 17 triggers, causing the powder charge 7 to ignite. The pressure of the powder gases shifts the nozzle nozzle 13 down, and the shell 3 releases the elastic cuff 6. The upper part of the liquid column is cut off from the bottom. Due to the expansion of the gas under the cuff 6, the device rises, simultaneously raising with it a column of fluid above the elastic cuff 6. By selecting the spring 19, various amounts of fluid can be extracted from the well. When lifting the device, the gas flow, the exit from the nozzle nozzle 13, ejects liquid from the near-barrel zone of the pipe string, thereby increasing the energy of the gas-liquid flow. In this way, the lift force of the device is increased and its range of use is expanded. 1 il.

Description

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The invention relates to the mining industry and can be used in the design of systems for removing fluid from a well in the construction, agricultural and mining industries.

The purpose of the invention is to increase the efficiency and expand the scope of use.

The drawing schematically shows the device, a longitudinal section.

The device for removing fluid from the well includes a housing 1 with a nozzle 2 and a shell 3, a head 4 with a bore 5 on the side of the shell 3 mounted above the housing 1 with the possibility of axial movement relative to the latter, an elastic cuff 6 clamped by a bore 5 and the shell 3, powder charge 7, charge ignition mechanism 8 and piston 9 with rod 10 mounted in head h, the piston 9 having a piston cavity 11 communicating with the well cavity 12, the device being equipped with an axially movable nozzle 13 in the axial direction 4The sides 1 of the housing 1 have a cylindrical cavity I, on the piston 9 there is a shank 15 with an axial channel 16, powder charge 7 is fixed in the cylindrical cavity H above the shaft 15, the ignition mechanism 8 of charge 7 is made in the form of a detonating cord 17 placed in charge 7 and the ignition initiator 18, the piston 9 is spring-loaded by the spring 19 relative to the head C and is installed above charge 7 with the possibility of interaction of the rod 10 with the initiator 18, the nozzle nozzle 13 is located at the entrance 20 to the nozzle 2, and in the case 1 the channels 21 are connected nozzle area 2 below nozzle 13 to the cavity 12 of the well, the outer diameter of the shank 15 is equal to the inner diameter of the cylindrical cavity 1.

The device works as follows.

The assembled device is lowered into the well and immersed in water. When a certain depth is reached, the column of fluid presses on the piston 9, brings the rod 10 closer to the initiator 18;

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change At a certain pressure value, the spring 19 is fully compressed and the ignition initiator 18 is punctured. Triggered detonating

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the cord 17, as a result of which the powder charge 7 is ignited. The pressure displaces the nozzle nozzles 13 downwards, and the shell 3 releases the elastic cuff 6. The upper part of the liquid column is cut off from the bottom. Due to the expansion of the powder gases under the cuff 6 by the pressure of the gases, the device rises up, simultaneously raising with itself a column of fluid above the elastic cuff 6. By selecting the spring 19, various amounts of fluid can be extracted from the well. When lifting the device, the gas flow, the exit from the nozzle head 13, ejects liquid from the near-barrel zone of the column, increasing the energy of the gas-liquid flow. Thus, the lift force of the device and the area of its use are increased.

from n 5

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five

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five

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formula of invention

A device for removing fluid from a well, comprising a housing with a nozzle and a shell, a head with a boring on the side of the shell, mounted above the housing with the possibility of axial movement relative to the latter, an elastic cuff clamped between the boring and the shell, a powder charge, a charge ignition mechanism and a piston with a rod mounted in the head, wherein the over-piston cavity of the piston communicates with the cavity of the well, characterized in that, in order to increase the efficiency and expand the field of use, the device is equipped The axially movable nozzle nozzle, a cylindrical cavity in the head on the body side, a shank with an axial channel on the piston, powder charge is fixed in the cylindrical cavity above the shank, the charge ignition mechanism is in the form of a detonating cord placed in charge, and initiator of ignition, the piston is spring-loaded relative to the head and installed above the charge with the possibility of interaction of the rod with the initiator, the nozzle nozzle is located at the entrance to the nozzle, and channels are made in the housing, -rotating portion of the nozzle below the nozzle with a well, the outer diameter of the shank is equal to the inner diameter of the cylindrical cavity.

Claims (1)

SUMMARY OF THE INVENTION A device for removing fluid from a well, comprising a housing with a nozzle and a shell, a head with a bore on the side of the shell mounted axially relative to the latter, an elastic cuff sandwiched between the bore and the shell, a powder charge, a charge ignition mechanism and a piston with a rod mounted in the head, and the piston cavity of the piston in communication with the cavity of the well, characterized in that, in order to increase efficiency and expand the scope of use, the device is equipped with an axially movable nozzle nozzle, a cylindrical cavity is made in the head from the body, a shank with an axial channel is mounted on the piston, the powder charge is fixed in a cylindrical cavity above the shank, the charge ignition mechanism is made in the form of a detonating cord placed in the charge and an ignition initiator , is spring-loaded relative to the first piston ⁵ and θ agile installed on the charge stock with the possibility of interaction with the initiator, the nozzle orifice is located at the nozzle inlet, and in the case No. ying channels communicating portion with the nozzle below the nozzle bore, 'with an outer diameter equal to the inner diameter of the shank of the cylindrical cavity.