SU541967A1 - Device to prevent drilling mud from entering the silo - Google Patents

Description

one

The invention relates to devices for preventing drilling mud from entering the silo in its preparation systems when drilling oil and gas wells.

There are known devices preventing liquids from entering the bunker l, 2. Alone; io, these devices do not ensure the tightness of the system.

It is also known a device for preventing drilling mud from entering the silo, including a nozzle nozzle located in an ejector body in which holes are drilled, a valve and a reservoir for the drained mud Z.

However, the known device is unreliable in operation, since, when the supply of the solution to the ejector blender is discontinued, the liquid enters the bunker with empty material and removes the solution preparation system.

With the chain of increasing the reliability of the device, the proposed device is equipped to shut off the drain hole with an epastic ring of diaphragm connected to the nozzle pipe and body.

In the drawing / le shows the proposed device.

virgin diaphragm; 1. connected to the nozzles; m nozzle 2 and housing, - 3; The drain hole is made in the housing; The device also contains C NIKOCTB 5, a connecting nozzle; {b with body 3, pipe 7 and flap - S,

The device works as follows.

The ferment broiler enters under pressure through a 7 lp branch pipe 1. Because of the pressure, the diaphragm increases its size and closes the opening 4. From the diaphragm 1, the solution enters the nozzle pipe 2, and from it through the pipeline into the reservoir for drilling mud. The outlet from the conjoined pipe 2 at high speed, a jet of liquid creates a vacuum in the case.

When the solution is stopped, the valve 8 is closed and the diaphragm 1 closes its initial position, opening the opening 4.

From the pipeline, the solution flows into the container 5.

Freely rotating spacing 8 prevents the solution from entering the silo when it swells into the container 5.

Claims (3)

1. Authors certificate of the USSR. No. 320622, M.C. F 16 C W / A, 1970. 2. USSR Author's Certificate, No. 34750О, M.Kl. F 18 K 17 / 168.1968. 3. Weinstein S.S. Complex mechanization of drilling fluid preparation processes - Drilling, 1973, No. 6, p. 17-22 prototype.