RU2783100C1 - Sampling device - Google Patents

Abstract

FIELD: sampling devices.

SUBSTANCE: invention relates to devices for sampling silty deposits of fluid and viscous consistency. A sampling device is disclosed, consisting of a rod attached to a hollow cylinder, the upper end of which is equipped with a hinged cover, while on the outer surface of the hollow cylinder in its lower part there is an annular stop interacting with the annular stop of the inner surface of the additional pipe, limited from moving upwards , fixed on the hollow pipe, the ring with the bracket has a hole at the end through which the cord is passed, fixed on the additional pipe, and on the lower parts of the hollow cylinder and the additional pipe provided with holes, a sleeve made of waterproof material is fixed.

EFFECT: invention ensures complete opening of the bottom of the hollow cylinder and more reliable closing when the sampler is lifted by eliminating slots.

3 cl, 4 dwg

Description

The invention relates to devices for sampling silty deposits of fluid and viscous consistency and can be used for sampling from various depths of any reservoirs and wells. The invention can find the widest application when testing lacustrine sapropel deposits and other bottom sediments of the appropriate consistency.

A similar device for testing bottom sediments is known, containing a core barrel equipped with a cutting shoe in the lower part. At the upper end of the core barrel there is a guide tube, on which a steel pipe is attached, which serves to install variable weight loads, as well as to mount four stabilizers. In this case, one of the stabilizers is provided with a flat cover and is movably mounted on the axis. When loosened at the moment of impact of the soil carrier on the bottom, the latch assumes a vertical position, which allows the cover to block the upper opening of the soil carrier during the extraction of the tube, preventing the sample from falling out (see I.G. Shelkovnikov, A.V. Lukoshkov. Technical means of underwater exploratory drilling and sampling. From Leningrad State University, L., 1979, pp. 77-78).

The disadvantage of analog is the doubtful possibility of testing fluid deposits, since it lacks a device that locks the lower end of the soil intake.

A similar device for sampling a fluid material is known, containing a vertically mounted ground pipe connected to an air pipe connected to a line for supplying compressed air and located parallel to the ground pipe, and a sampler made in the form of a glass covering the upper half of the ground pipe, and the ground pipe is rigidly is fixed in the sleeve, and the upper end of the ground pipe is mounted below the upper end of the sleeve at 1/6 part of the length of the sleeve, while the connection of the ground and air pipes is carried out by inserting the lower end of the air pipe into the side wall of the ground pipe at a height of 2 centimeters from the lower end of the ground pipe (see RF patent No. 2030729, IPC G01N 1/20, G01N 1/10, published 1995, March 10).

The disadvantage of the analogue is the additional dilution of the tested material with a jet of water during its extraction and violation of the structure of the sample, which excludes the provision of a qualitative and quantitative assessment of the sample taken, as well as the possibility of testing only the upper layer of the tested deposit.

The closest device for the same purpose to the claimed invention in terms of a combination of features is a universal sampler of bottom sediments and drill cuttings, which is a hollow cylinder, to which a collapsible type handle is attached by welding or otherwise, the sections of which are fastened together through holes in the end sections bolts, and the end of the sampler is made beveled and pointed, the cylinder is made equipped with moving plates on the mount (connection) of the hinge type, the first plate is fixed from the inside, the second plate is in the upper part. (see RF patent No. 73396 U1, IPC E21B 49/02, published 2008.05.20, selected as a prototype)

The disadvantage of the prototype is that the device is inoperable. The formula of the utility model indicates that the sampler (position 1 in the prototype) is made in the form of a hollow cylinder. The first plate (position 4 in the prototype) is fixed from the inside on the hinge (position 3 in the prototype). Since the first plate is fixed from the inside of the cylinder, then the shape of this plate (position 4 in the prototype) is in the form of a round disk. Figure 1 of the prototype (position 10) shows that the plate is vertical! In order for the plate to take this vertical position, the hollow cylinder (position 1 of the prototype) must be square or rectangular. Since a hollow cylinder is indicated in the formula, the disk mounted on a hinge by its edge will rise to the top by about 20-25 degrees. And he can't stand upright! The entrance to the hollow cylinder will be slightly ajar in the form of a narrow slot.

The technical problem is that it is necessary to ensure the operability of the sampler.

EFFECT: ensuring complete opening of the bottom of the hollow cylinder and more reliable closing when the sampler is raised, by eliminating slots.

This technical result is achieved by the fact that in the well-known sampling device consisting of a rod attached to a hollow cylinder, the upper end of which is equipped with a hinged lid, the peculiarity lies in the fact that on the outer surface of the hollow cylinder in its lower part an annular stop is made, interacting with an annular stop of the inner surface of the additional pipe, limited from upward movement, fixed on the hollow pipe with a ring with a bracket having a hole at the end through which a cord is passed, fixed on the additional pipe, and a sleeve is fixed on the lower parts of the hollow cylinder and the additional pipe provided with holes made of waterproof material.

Additionally, the invention is characterized in that the hinged lid is provided with a stop.

In addition, the invention is characterized by the fact that a tube bent along the radius is fixed in the hole of the bracket, through which a cord is passed.

The invention is illustrated by drawings.

Figure 1 - the top of the device when immersed in a pond.

Figure 2 - bottom of the device

Figure 3 is a view from the left side of figure 2.

Figure 4 - the bottom of the device after the formation of a twist on the sleeve.

The drawings show.

Rod 1 attached to hollow cylinder 2. Bracket 3 attached to the top of the hollow cylinder with axis 4, on which a hinged cover 5 is fixed, the shank of which is equipped with a stop 6 interacting with the bracket 3. Stop 6 does not allow the hinged cover to rise at a greater angle when the device is immersed . On the outer surface of the hollow cylinder 2, an annular stop 7 is made. An additional pipe 8 on the inner surface contains a similar stop interacting with the annular stop 7. The additional pipe 8 can freely rotate relative to the hollow cylinder 2. On the hollow cylinder 2 there is a ring 9 with a bracket 10, in the lower part of which a hole 11 is made. A tube 12 bent along the radius is fixed in the hole, through which a cord 13 is passed. The ring 9 is fixed on the hollow pipe 2 with three screws 14. the bottom of the hollow cylinder is put on a sleeve 16 made of waterproof material and tightened, for example, with a collar. An annular groove 17 is made at the very bottom of the additional pipe 8. A sleeve 16 is put on the bottom of the additional pipe 8 and tightened, for example, with a clamp. The excess sleeves are tucked inside the hollow cylinder 2. When the sleeve 16 is twisted, it will begin to move away from the inner surface of the additional pipe 8 and so that a vacuum does not form in this place, which will prevent the formation of twisting 18 of the sleeve 16, holes 19 are made in the lower part of the additional pipe 8. To the cord 13 did not wear out for a long time, a tube 12 bent along the radius is fixed in the hole 11, through which the cord is passed.

The device works as follows.

The initial position of the device is shown in figure 2. The oncoming flow of fluid through the hollow pipe 8 will open the hinged cover 5. If the depth is large, then the rod is collapsible. We twist the collapsible parts of the rod together. We lower the device to the desired depth and begin to pull the cord 13. In this case, the additional pipe 8 will begin to rotate. The rotation of the sleeve 16 forms a twist 18. The length of the sleeve 16 and the required number of rotations of the additional pipe 8 relative to the hollow cylinder 2 are determined empirically. We begin to remove the device. At the same time, we hold the cord in a taut position (for example, by a second person). The hinged cover 6 is closed by the oncoming flow of sapropel. We disassemble the bar into its component parts. After removing the entire device from the reservoir, the sample, with its weight, begins to put pressure on the twisted sleeve, trying to unwind it.

To extract the sample, release the cord 13. Hold the hollow cylinder 2. Rotate the additional pipe 8 to unwind the twist 18 of the sleeve 16. The sleeve unwinds and the sample is removed.

After washing the device with water, it is returned to its original position (see figure 2). The device is completely ready for operation.

Thus, the above information testifies to the fulfillment of the following set of conditions when using the claimed invention:

- a tool that embodies the claimed invention in its implementation, is intended for use in sampling in reservoirs of samples of silt deposits of a fluid and viscous consistency;

- for the claimed device in the form as it is described in the independent paragraph of the stated claims, the possibility of its implementation using the means and methods described in the application or known before the priority date is confirmed;

- a tool that embodies the claimed invention in its implementation, capable of achieving the technical result perceived by the applicant;

- the advantage of the invention is that the device becomes operable. Twisting the sleeve securely closes the hollow pipe from below and prevents even the flow of water.

Therefore, the claimed invention meets the condition of "industrial applicability".

Claims (3)

1. Device for sampling, consisting of a rod attached to a hollow cylinder, the upper end of which is equipped with a hinged cover, characterized in that on the outer surface of the hollow cylinder in its lower part there is an annular stop interacting with the annular stop of the inner surface of the additional pipe, limited from moving upwards, fixed on the hollow pipe with a ring with a bracket having a hole at the end through which a cord is passed, fixed on an additional pipe, and a sleeve made of waterproof material is fixed on the lower parts of the hollow cylinder and the additional pipe provided with holes. 2. Sampling device according to claim 1, characterized in that the hinged lid is provided with a stop. 3. Sampling device according to claim 1, characterized in that a tube bent along the radius is fixed in the hole of the bracket, through which a cord is passed.

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