SU1229346A1 - Method of hydraulic winding of minerals through wells - Google Patents

Description

The invention relates to the field of hydro-mining of minerals through wells, and can also be used in drilling squaskine, erlift pumping of water from hydrogeological wells, in the formation of boiler tanks in wells, and in various influences on. surface area - for example, during acid treatment of formations, as well as gfi sampling of minerals from various horizons and during their trial

exploitation of geotechnological me-.

The aim of the invention is to increase the efficiency of extraction by ensuring the lifting of the lumpy material by airlining it.

Figs. 1 and 2 show the design of the borehole hydrophobic tooling for water supply and air supply, respectively.

The device contains a pulp-lifting 1, a rock-breaking element 2, a pipe 3 for supplying a working agent, an agent pressure chamber 4 that destroys the nozzle 5, a perforation 6, an annular hollow hermetic valve 7, a branch pipe 8. For the work, the core is suspended on a swivel 9 auger drill , pass through the rotor 10 of the burstanka and are connected by flexible hoses 11 using valves 12 and 13 to the compressor 14 and the pump 15. The stroke of the float valve 7 is limited by the pressure chamber wall on the agent inlet side and: stops 165 located between the agent outlets to the nozzles 5 and the entrance hole in the chamber.

 The device works as follows

In the well, a slurry-raising pipe 1 is mounted. Then, the rock-breaking element 2 is lowered onto the bottom-hole on agent supply pipes 3. At the bottom-hole end pipe 3 is made with perforation 65

2293462

measure 4 of the pressure of the agent, which is connected by means of the pipe 8 to the destructive nozzles 5, is directed downwards, in the direction I, vvrrh. Inside

5 chambers are equipped with stops 16, the annular hollow packs 7 are rigidly mounted on the nozzle B, and the nozzle 8 telescopically interacts from the inside with perforation 6.

I) The hole in the float and the nozzle form a through axial channel in the float valve. When the device is put into operation in the mode of drilling, lateral destruction of rocks and hydraulic flushing of the well, the valve 12 is closed, the valve 13 is opened and the pump 5 is put into operation. The pipes 3 are rotated by the rotor 10. In this case, the working agent passes through

20, the pressure chamber 4 of the agent acts on the float 7 from bottom to top, the float and the nozzle 8 move upward due to the buoyancy force and the perforation 6 overlaps

25 pipe B. To switch to the air-lift mode of pumping the slurry from the well, pump 15 is turned off and closed by the back of the 13, start-up of the compressor 14 and open the valve 12.

When the supply from the pump 15 stops, the pressure inside the pressure chamber 4 of the agent drops, the pipes 3 and the agent pressure chamber 4 fill the air and the float 7 with the pipe 8 moves downwards to the stops 16 under the force of gravity 16. This opens the perforation 6 of the pipes. Compressed air from the compress: the era enters through the pipes 3 through the perforations 6 into the pulp-lifting pipe i and the device begins to operate in the air-lift mode. If necessary, the mechanical effect on the rock in the downhole part of the borehole continues regardless of the amount of agent supplied. The cycle is repeated by turning off the compressor 14 and turning on the pump 15.

 and

phage. 2

Editor G. Volkov

Compiled by N. Rudenko Tehred N. Bonkalo

Order 2428/28 Circulation 470Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., DS 4/5

Production and printing company, Uzhgorod, st. Project, 4

Proofreader A.Ferents

Claims (3)

1. DEVICE FOR BORE HOLIDAY PRODUCTION OF USEFUL FOSSILS, including pulp lifting and agent-feeding pipes, bottomhole rock cutting element and pressure chamber of working agent with inlet and side nozzles, installed between the wellhead and rock cutting element, which differs in order to increase production efficiency by ensuring the lifting of lumpy material by means of its airlift, in it the agent-supply pipe is perforated in the area in front of the pressure chamber in the direction of travel agent, and the pressure chamber is equipped with stops installed on the inner side surface between the inlet and side nozzles, and a float valve installed with the possibility of overlapping perforation at its upper position and interacting with the stops at the lower position, while the float valve is made with a through channel along the axis of the A. supply pipe and pressure chamber. 2. The device according to π.1, which consists in that, in order to increase the reliability of the device by preventing water leakage through perforation, the perforated portion of the agent-supply pipe is made of hydrophobic material. 3. The device according to claim 2, characterized in that perchlorine vinyl is used as the hydrophobic material. SU „„ 1229346