SU1444646A1 - Sampler - Google Patents

Abstract

The invention relates to devices for sampling and separating foam suspensions when drilling wells with testing on sludge and can be applied in the beneficiation, chemical and other sectors of the industry. The purpose of the invention is to increase the reliability of the sample being taken. The sampler includes a housing within which is placed a device for separating sludge, made in the form of two flat spirals installed with a gap, one of which is mesh. In the gap between the spirals, a screw spiral is installed, made in the form of a rubber harness of rectangular cross section. To the body of the mount psamosbornik and drain chamber. 1 hp f-ly, 2 ill. with (L

Description

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The invention relates to devices for sampling and separating foam suspensions during drilling of wells with testing of sludge and can be used in enrichment, chemical and other industries,.

The purpose of the invention is to increase the reliability of the sample being taken,

FIG. I depicts a sampler general view; in fig. 2 section A-A in FIG. one.

The sampler includes a housing 1, a collecting container 2, a device 3 for discharging sludge and a drain chamber made in the form of a removable container 4 of filter material 5. Inside the case there is a device for separating sludge made in the form of two flat spirals, one of which ( 6) - the mesh, and the friend (7) - of sheet material, installed with gaps 8 and 9 between them, and a helical spiral 10, installed in the gap 8 between the inner surface 11 of the helix of sheet material and the outer surface 12 of the mesh spiral. The gap 9 is provided with longitudinal rods 13 of elastic material. The gap 8 is provided by a helical coil 10, which is a rubber cord of rectangular cross section. In order to impart the suspension necessary for the beginning of the separation of the angular velocity of the mesh, the helix 6 is displaced relative to the helix 7 of the sheet material in the course of the suspension movement. The housing 1 is mounted on the support 14 and closed with a hermetic nail 15. The cone 17 is fastened to the smallest turn 16 of helix 7, and the sludge collector 2, which is a settling tank, is fastened under it with a gap 18. The housing 1 is provided with an inlet 19. The sludge discharge device 3 consists of a valve 20 with a stem 21, which is hingedly attached to the end of the lever 22. The lever 22 is unlocked on the support 23 and is spring loaded 24. The lower part of the housing 1 is removable by means of the cord 25 drain chamber 4 of the filter material 5. The cover 15 is made with an internal cavity 26..

The device works with a manual in the form of.

The original foam slurry from the well at a speed of 2-5 m / s through the pipe 19 enters the gap 8, where it twists at an ever-increasing angular velocity with decreasing the radius of the turns to the center. When this occurs, the separation of suspensions in the field of centrifugal forces. Larger sludge particles are thrown by centrifugal forces to the inner surface 11 of the helix, 7 of sheet material. As the flow moves to the center as the angular velocity increases, more and more sludge particles cluster and move along this surface. Foam as the lightest component of the suspension is formed and moves along the outer surface 2 of the mesh helix 6. Impacting with great speed on it, the foam is destroyed. To a large extent, this is due to the rarefaction formed in the cavity 26 when the suspension stream is swirled. Foam is also destroyed when moving particles of a crust along a helical spiral 10 when colliding with air bubbles with. In the absence of this spiral, large particles would fall into chamber 4 under their own weight, would not reach the internal coil 16 and the sludge collector 2. At the same time, they would not participate in the destruction foams and, in addition, would clog prematurely the pores of the filter material 5. Screw helix 10 also allows an increase in the separation time of the slurry, and hence the quality of separation at a lower helix height. The centrifugal separation of the sludge along the inner coil 16 flows into the sludge tank 2, where it is further settled. As the sludge trap 2 is filled, the water is poured through the gap 18 into the drain chamber 4. When the foam breaks, the air enters the cavity 26 through the gaps 9, and purified water with a small amount of small particles flows to the cone 17 and from it to the walls of the chamber 4 from above way down. This contributes to a more rational use of material 5 and, with large pores of this material, allows for filtering smaller particles of sludge. The water filtered through material 5 with the reagent dissolved in it is returned for reuse. At the end of the drilling, the suspension is stopped. When moving the free end of the bat

22 upwardly, valve 20 through rod 2I moves downward and the sludge from ishamo-collector 2 enters chamber 4. Then this chamber with sludge is removed and a new one is installed in its place with the help of cord 25; the process is repeated.

The use of the proposed sampler makes it possible to increase the reliability of the sample by destroying the foam by centrifugally separating the suspension with a mesh surface with large particles of sludge and by creating a dilution, as well as by separating the purified liquid as the suspension is separated.

Claims (2)

Claims 1. A sampler comprising a housing within which a device is placed Sludge separation apparatus, sludge collector, device for unloading sludge and a drain chamber made as a removable container of filter material, characterized in that, in order to increase the reliability of the sample taken, the device for separating sludge is made in the form of two flat spirals installed inside the case with a gap between them, with one of the spirals made mesh, and in the gap between them an additional spiral screw is installed. 2. A sampler according to claim 2, characterized in that the screw helix is made in the form of a rubber cord of rectangular section. srig.1 e ten eleven