SU1680346A1 - Device to clean drilling mud - Google Patents

Description

The invention relates to devices

for cleaning the drilling fluid and improves the cleaning efficiency. The device consists of a housing 1 with a tangential nozzle 2 of the input of the original product, having a rectangular cross-section and equipped with a vertical partition 3, forming a cavity connected to a slurry pump 6, the inlet of which is connected to the nozzle 2 by a pipe 7. coaxially fixed hollow inverted truncated cone 10. In this case, the diaphragm 8 and the hollow inverted truncated cone 10 are connected to a source of electric current. Zil.

FIG. one

with

R

1680346 A

3

1680346

four

The invention relates to the technical

means for cleaning drilling fluids and

can find application in the field of drilling

production and exploration wells

rotor and turbine way.

The purpose of the invention is to increase the cleaning efficiency.

Figure 1 presents a device for cleaning drilling mud, General view; figure 2 - section aa in figure 1; on fig.Z - section bb in fig. one.

The device consists of a housing 1 with a nozzle 2 of the input of the original product of rectangular cross-section, equipped with a vertical partition 3 with the formation of the cavity 4, where the nozzle 5 is connected from the slurry pump 6, the inlet of which is connected to the inlet pipe 7. 7. from the housing by an insulator 9. Inside the housing a hollow inverted truncated cone 10 is installed coaxially with the diaphragm. An annular drain threshold 11 is mounted outside the housing in its upper part. Installed at the bottom of the housing n auger 12 located in shlamootvode 13 and provided with a drive 14. The diaphragm 8 and a hollow inverted truncated cone 10 attached to the electric power source.

The device works as follows.

The original solution enters the housing 1 through the pipe 2. The pipe 2 has a rectangular cross-section, and near the case it is equipped with a vertical partition 3. forming a cavity 4, where part of the original solution is pumped under pressure by a slurry pump 6 through the suction pipe 7 and the pressure pipe 5.

The nozzle 2 is adjacent to the housing 1 tangentially and the input source solution flows tangentially, creating a rotating flow in the cylindrical part of the housing (hydrocyclone effect). 12 are transported to the dump with fair dehydration. When not sufficiently high head in the inlet pipe 2, the slurry pump 6 is put into operation, which takes part of the low pressure solution from pipe 2 through pipe 7, introduces it through pipe 5 into cavity 4 and further tangentially into body 1 under high pressure. This allows, if necessary, to enhance the hydrocyclone effect.

The clarified part of the solution moves upward along the axis of the housing 1, where, passing through

the lower base of the inverted hollow truncated cone (electrode) 10 falls into the electric field between the diaphragm 8 and the cone 10, which increases the particle deposition rate several times, therefore the remaining solid particles are deposited on the inner surface of the cone 10, along which they rise or rise the upward flow up and there along the inner wall of the housing 1 roll into the sludge outlet 13, or slide along the inner surface of the cone 10, again falling into the sludge disposal station 13.

Thus, the cleaning efficiency is ensured by increasing the hydrocyclone effect by supplying the initial product with a rectangular nozzle, which is the most hydraulically advantageous to create a hydrocyclone effect, and introducing part of the flow under higher pressure from the cavity formed by the vertical partition in this nozzle. In addition, the efficiency is increased by applying a potential difference to the diaphragm and the electrode of a hollow inverted truncated cone mounted coaxially under the diaphragm. The shape of the second electrode was chosen taking into account the need to increase the influence of the electric field when the clarified part of the solution moves along the axis of the housing from bottom to top.

The technical and economic effect of the use of the installation is based on the possibility of increasing the frequency of use of the solution, reducing the cost of chemical reagents, organizing and eliminating sludge pits.

Claims (1)

Claim A device for cleaning drilling fluids, comprising a housing with a tangential inlet of the original product, a pump, a drain hole and a sludge hole with a screw for carrying out the sludge, characterized in that it is equipped with a hollow inverted truncated cone, additional sludge pump, the suction of which is connected by a pipe with the input pipe of the initial product, and the drain hole of the device is equipped with a diaphragm, the hollow inverted truncated cone is fixed coaxially under the diaphragm, while The input product slab is rectangular and is equipped with a vertical partition forming a cavity connected to the slurry pump, and the diaphragm and the hollow inverted truncated cone are connected to an electric current source, 1680346 2