SU1506115A1 - Well hydraulic monitor device - Google Patents

Abstract

The invention relates to geotechnology and can be used to form radial drainage channels in the leaching of mineral resources when testing productive horizons. The goal is to increase the efficiency of the device by adjusting the angle of the diverter and returning it to the non-working position. The device includes a tubular composition 1, a flexible hose (P) 2 with a jetting head 3 at the end, a diverter in the form of an elastic bracket (CC) 4 and a squeezing element. At the same time, the Criminal Code 4 has a curvature concave on the P 2 side, is connected at one end to the wall of the rod 1 and is installed in the plane of the P 2 bend when the latter is deflected. The CC 4 is made in the form of a flat spring element with guides 8 for holding P 2 on the CC 4 when it is deflected. The squeezing element is designed as a load 5, the weight of which is greater than the stretching force of the CC 4. The load 5 is located under the CC 4 and is connected to it by a flexible pull 6. The control cable 7, which is connected to the upper end of the load 5, is passed along the post 1 devices to a predetermined depth choose the cable 7 by means of a traction mechanism. The load from the Criminal Code 4 is removed, as the cable 7 lifts the load 5 and the ton ha 6 weakens. Then, along P 2 to the nozzles of the jetting head 3, water is supplied under pressure and P 2 is removed from Stage 1. At the same time, P 2 moves along CC 4, deviates and, penetrating into the formation, forms a radial channel by erosion. 2 Il.

Description

315

flexible hose (P) with a jetting head 3 at the end, a diverter in the form of an elastic bracket (CC) 4 and a squeezing element. At the same time, CC 4 has a curved curvature on the P 2 side, is connected at one end to the wall of the rod 1 and is installed in the plane of the bend P 2 when the latter is deflected. The CC 4 is made in the form of a flat spring element with guides 8 for holding P 2 on the CC 4 when it is deflected. The squeezing element is designed as a cargo 5, the weight of which is greater than the efforts of expanding the AC As cargo 5 is located under UK 4 and is connected to

four

A flexible cable 6 is installed along it. A control cable 7 is omitted along the bridge 1 and connected to the upper end of the load 5. After the device is lowered to a predetermined depth, the cable 7 is selected using a pull mechanism. The load from the Criminal Code 4. is removed, since the cable 7 lifts the load 5 and the ton ha 6 weakens. Then, via P 2 to the nozzles of the jetting head 3, water is supplied under pressure and P 2 is removed from Stage 1. In this case, P2 moves along CC 4, deviates and, after being inserted into the formation, forms, by erosion, a radial channel about 2 silt

The invention relates to geotechnology and can be used to form radial drainage channels when leaching mineral resources, testing out productive horizons, etc.

The aim of the invention is to increase the efficiency of the device in operation by adjusting the angle of the diverter and ensuring its return to the off position.

FIG. 1 shows the device in the off position; Fig 2 - the same, in the working position

The device consists of a pipe stand 1, a flexible sleeve 2 with a jetting head 3 at the end, an elastic bracket 4, a load 5, a flexible rod 6 and a cable 7.

The flexible hose 2 is located inside the gate 1 and is installed with the ability to move and exit from the gate 1 to the deflector bracket 4. The elastic bracket 4 has a curved curvature on the side of the sleeve 2, at one end connected to the wall of the rod 1 and is installed in the plane of the bend of the sleeve 2 when the latter is deflected. The bracket 4 itself can be made in the form of a flat spring element with guides 8 for holding the sleeve 2 on the bracket 4 when it is deflected. Guides 8 can be made, for example, c. the form of rings mounted on the bracket 4. The monitor head 3 is fixed on the end face of the sleeve 2. The squeezing element is designed as a cargo 5, the weight of which is greater

five

tensile force of bracket 4, wherein the load 5 is connected by flexible rod 6 to the free end of bracket 4 and

5 is located under it. The control cable 7 is also connected to the upper end of the load 5, passed along the rod 1 to the surface, and there is connected to the pulling mechanism, for example, a pulley.

0 type or winch.

The downhole jetting device works as follows

When tube tube 1 is lowered into the borehole, sleeve 2 is located within this range, and cable 7 is in a free state. However, due to the fact that the weight of the load 5 exceeds the tensile force of the elastic bracket 5, the latter is in the inoperative position, i.e. in a position where a load is applied to it and it is straightened, whereby the free passage of the stave 1 with the diverter through the well is ensured. The force from the load 5 is transmitted to the free end of the bracket 4 through a flexible cable 6. After the device has been released to a predetermined depth Begin to choose the cable 7 by means of a pull mechanism located on the surface. This removes the load from the free end of the bracket 4, as the cable 7 lifts the load 5, nt ha 6 weakens. The angle of deviation of the bracket 4 can be adjusted in advance by lifting the load to a predetermined height relative to the stationary fixed heading K

0

five

515

Following this, through the sleeve 2 to the nozzles of the jetting head 3, water is supplied under pressure and begins to withdraw the sleeve from the heading 1. At the same time, the sleeve moves along the bracket and deflects in a given direction, penetrating into the reservoir and providing a radial channel by erosion of the rocks and hydraulic lift to the surface by the method of direct washing

After the channel has been completed, the prescribed length is removed from the indicated channel by sleeve 2 and turned back into position 1. Then the cable 7 is loosened, while the load 5 moves the bracket 4 to the non-working position, after which it turns The other corner and all operations are repeated.

After all the radial channels are completed using the described method, bracket 4 is returned to its inoperative position and the device is removed from the well.

Claims (1)

Invention Formula A downhole jetting device containing a pipe stand, a flexible hose with a jet head at the end, installed with the possibility of removing it from the pipe stand and from the vertical position when interacting with the working surface of the diverter, made in the form of an elastic bracket connected to the wall of the stand and installed with the possibility of fixing in the off position squeezing element, characterized in that, in order to reduce the efficiency of the device by adjusting the angle of the diverter, and both returning it to the inoperative position, the squeezing element is made in the form of a load, the weight of which exceeds the tensile force of the elastic arm, while the load is located under the arm and connected to its free end by a flexible rod, and the device is provided with a control cable that is passed along the Pipeline, which is connected to the cargo. Editor I. Shmakov Compiled by N. Chertova Tehred M. Didyk Proofreader c. Cabing Order 5404 / FOR Circulation 4A9 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 Subscription