SU1687767A1 - Method and apparatus for injecting mixed tamping into a bed - Google Patents

Abstract

The invention relates to the mining industry and is intended for the construction of wells. The goal is to increase the efficiency and quality of the insulation work while moving the device down. Into the well down on the drill pipe device for isolating the absorption zones with a working body. Fluid is injected into drill pipes. In the working body, oscillatory movements are excited in vertical and horizontal directions. A device for carrying out this method has a nozzle installed inside the case, in the upper part of which there is an anvil spring-loaded relative to it with the possibility of their impact interaction, and a locking element. The lower end of the body is tapered, and its side surface is with radial holes. The device has a nozzle made in the upper part with a seating seat under the locking element and a radial rod under it. The working body is made in the form of an elastic sleeve mounted on the body against its radial holes and fixed to the body in the upper and lower parts. The formation of the reservoir by oscillating movements of the working body in the vertical and horizontal directions contributes to a deeper penetration of the cement mix into the reservoir and its more dense packing. 2 sp.f-ly, 2 ill. 00 C

Description

The invention relates to the mining industry, and more specifically to the construction of wells, and can be used to eliminate absorption during the drilling of wells.

The purpose of the invention is to increase the efficiency and quality of insulation works.

Figure 1 shows the device, a longitudinal section; figure 2-position of the working body in the well when moving the device down.

The essence of the invention is that when the cement mixture is pushed into the reservoir, the device for isolating the absorption zones with the tool is first lowered into the well of the drill pipe, the cement mixture is delivered into the well and is crushed into the absorption zone by reciprocating the device with the tool body. Moreover, during the downward movement of the device into the drill pipes,

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i IDU1 p. in-dv n p g of pressure, l i the working body excites the co-optic DIARNICH P vertical 11 horizontal directions

The device is implemented using a device including drill pipes 1. A hollow body 2 with a working body 3 fixed on the lower end of the drill pipe 1. A pipe 4 mounted inside the body 2, an anvil 5, spring-loaded 6 relative to the body 1, and installed in the upper part of the latter with the possibility of impact interaction of the locking element 7. In this case, the lower end of the housing 2 is tapered, and its lateral surface has radial holes 8. The socket 4 in the upper part is made with a saddle 9 for constipation the first element 7 and the radial opening 10 above it, and a flexible actuator rukapa mounted on the body 2 opposite the radial holes 8 and fixed to the housing at the top of the yoke 11. In the lower portion, a collar 12.

The device works as follows.

Using a drill pipe 1, the device is lowered into the zone of the intended installation. The grouting material is fed into the working area through a string of drill pipes and the device is discharged to the area of the proposed plugging prior to resetting the locking element 7. In order to knock it into the pores and cracks of the rock, it is necessary to prepare the device for operation, for which purpose the locking element 7 is dropped, which, passing through the drill pipe string 1, sits on the seating saddle 9. the saddle 9 is displaced downwards and opens the radial holes 10 of the nozzle 4. The device is installed over the interval of the pumping mixture and pumped under pulsating pressure into the drill pipes as they are moved down the squeezing fluid. The continuous fluid entering the gap between the housing 1 and the pipe 4, opens the working body 3 and lifts the anvil 5. Swelling under the extension of the continuous liquid, the working body 3 pushes the fluid mixture into the creams of the seam Prigborg-r.). i and. G. ,, 5 strikes the hull 2 and chr-dch 1 g h. and the working body 3 sharpening days .. chi in the vertical direction at tpm p, h

The barrel body 3 is in a day -1 position. The device is lowered a little lower and the pressure of the liquid prodppcnpi is increased. Worker body 3 of the leader of the new plast of the tamgunazhny mixture

Condensation of grouting mixture in

the reservoir under the influence of oscillatory movements of the working body in vertical and horizontal directions contributes to a deeper penetration

mixture into the reservoir and its more dense packaging.

Claims (2)

1. Method of crushing backfill the mixture into the reservoir, including the descent into the well on the drill pipes of the device for isolating the absorption zones with the working body, delivering the cement mixture to the well and pushing it into the absorption zone by reciprocating movement of the device with a working body, characterized in that, in order to increase the efficiency and quality of the insulation works during the movement of the device downward, the squeezing fluid is pumped into the drill pipes under a pulsating pressure, and oscillatory movements in the vertical and horizontal directions are induced in the working member. 2. A device for crushing the grouting mixture, including drill pipes, a hollow body with a working body, mounted on the lower end of the drill pipes, characterized in that equipped with a pipe installed inside the housing, an anvil, spring-loaded relative to the housing and installed in the upper part of the latter with the possibility of their impact interaction, and shut-off the lower end of the body is made conical, and its lateral surface is with radial holes, the nozzle in the upper part is made with a seat under the locking element and a radial rod above it, and the working body in the form of an elastic sleeve mounted on the body its radial holes and attached to the housing in the roof and the lower parts five five 1 % g 2