SU1465564A1 - Arrangement for drying and cleaning wells - Google Patents

Abstract

The invention relates to mining and m. used in the cleaning of wells from water and drill cuttings. The goal is to increase the efficiency of drainage and cleaning of wells by increasing the dynamic pressure of the working fluid. The device includes a hollow body (K) 1 with a pipe 9 supplying the working fluid from one end to K 1 and a valve spring-loaded with respect to K 1 to release the working fluid with dopp. . To a clean stack. double-ended K 1 1 from the opposite end of K 1. The valve is made in the form of a cover 3 with openings 4 that overlaps the cavity K 1 and is installed with the end K 1 when the working fluid is fed into the cavity of the annular gap 6. It decreases to the periphery K 1 and is inclined towards the pipeline 9 .. The device is equipped with a cap 3 stroke regulator in the form of a bolt 5 with a spring 8 connecting K 1 and a cap 3. To drain and clean the well, the device is inserted as far as the bolt 5 stops in the bottom. The spring 8 is compressed, 3 is lowered and closes the gap 6. Compressed air through the holes 4 enters the bottom of the well and carries the water into the annulus. When the device is withdrawn from the bottom, the cover 3 under the action of the spring 8 and compressed air departs from K 1, the opening 6, through which high pressure air enters the annulus, clearing the well of water and sludge as the device moves to the mouth wells. 1 hp f-ly, 4 ill. i. A C (L | a SD

Description

The invention relates to mining d:, spruce, and can be used in C | cleaning a well from drill cuttings tf of water.

The aim of the invention is to increase the efficiency of drying and cleaning (tkvazhin by increasing the dynamic pressure of the working fluid.

FIG. 1 shows a device

longitudinal section, with

open ring 1st gap; in fig. 2 - the same, with a gap of 1: a ryty annular gap; in fig. 3 shows section A-A in FIG. one; in fig. A - section BB in FIG. one.

The device consists of a hollow body 1 with channels 2 for the passage of compressed air into the cavity of the body, a valve in the form of a cover 3 spring-loaded with respect to the body cover with end openings 4 for the release of compressed air. The housing and the valve are connected by an adjusting bolt 5, by means of which the size of the salt gap 6 is established, with the nut 7, fixing the cover 3 on the bolt 5, and spring-Irina 8. Compressed air is supplied through the pipeline 9. The lock nut 10 fixes the adjusting bolt 5 in the {desired position. The device works as follows.

I A pipeline with a nozzle fixed on its End is inserted into the well (up to the stop of the head of the bolt 5 in the bottom. When this happens, the spring 8 is compressed, the crank 3 is lowered and closes the collar, and the compressed air enters the

14655642

downhole and produces the removal of sludge and water in the annulus. When removing the device from the bottom, the cover 3 under the action of the spring and compressed air leaves the housing 1, opening an annular gap 6, through which the compressed air under high pressure enters the annular space, clearing, and the borehole walls from sludge and water, and the device is gradually withdrawn from the well.

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Claims (2)

1. A device for drainage and cleaning of wells includes; its hollow body with an end pipe for supplying the working fluid to its cavity and a valve spring-loaded with respect to the body with openings for discharging the working fluid from the end of the body opposite to the pipeline, characterized in that efficiency of well drainage and cleaning by increasing the dynamic pressure of the working fluid; the valve is made in the form of a lid overlying the cavity of the housing and installed with the possibility of formation with the end of the housing when th working body cavity of the annular gap, a decreasing towards the periphery of the housing and inclined in the direction of the pipeline, this PR.I body cavity with rtorony sealed pipeline. 2. The device according to claim 1, wherein it is equipped with a lid travel control knob. Invention Formula 1. A device for drainage and cleaning of wells includes; its hollow body with an end pipe for supplying the working fluid to its cavity and a valve spring-loaded with respect to the body with openings for discharging the working fluid from the end of the body opposite to the pipeline, characterized in that efficiency of well drainage and cleaning by increasing the dynamic pressure of the working fluid; the valve is made in the form of a lid overlying the housing cavity and installed with the possibility of forming with the end of the housing th working body cavity of the annular gap, a decreasing towards the periphery of the housing and inclined in the direction of the pipeline, this PR.I body cavity with rtorony sealed pipeline. 2. The device according to claim 1, wherein it is equipped with a lid travel control knob. ff (rig 2 (.3 6-6 tpuffjft