CN211692363U

CN211692363U - Drilling mud processing apparatus

Info

Publication number: CN211692363U
Application number: CN202020143324.1U
Authority: CN
Inventors: 里群; 张振华
Original assignee: Gu'an Guokan Petroleum Technology Co ltd
Current assignee: Gu'an Guokan Petroleum Technology Co ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-10-16
Anticipated expiration: 2030-01-22

Abstract

The application provides a drilling mud treatment device, which comprises a vibrating screen, a recovered liquid treatment mechanism, a cleaning mechanism and a solid-liquid separation mechanism; a liquid outlet and a rock debris outlet are arranged on the vibrating screen; the recovery liquid processing mechanism is connected with the liquid outlet; the cleaning mechanism is connected with the cache box and the drying box; the buffer tank is also respectively connected with a sand remover, a mud remover and a centrifugal machine in the recovered liquid treatment mechanism; the solid-liquid separation mechanism comprises a high-pressure filter press; the high-pressure filter press is connected with the buffer tank. According to the technical scheme provided by the embodiment of the application, solid and liquid in mud are primarily separated through the vibrating screen, residual mud liquid on rock debris is removed through the cleaning mechanism, impurities in recovery liquid are removed through the recovery liquid treatment mechanism, impurities in the recovery liquid treatment mechanism and waste water generated in the cleaning mechanism are subjected to solid-liquid separation through the buffer tank, and recyclable recovery liquid and harmless mud cakes are obtained through solid-liquid separation of impurities in the buffer tank through the solid-liquid separation mechanism.

Description

Drilling mud processing apparatus

Technical Field

The application relates to the technical field of oil field environmental protection, concretely relates to drilling mud processing apparatus.

Background

A large amount of solid waste is generated in the drilling process of the oil and gas field, and is one of main pollution sources of the oil and gas field. It is a stable colloid suspension system containing clay, weighting material, various chemical treating agents, sewage and drilling cuttings, and the main components harmful to the environment are hydrocarbons, salts, various polymers, lignosulfonate, some metal ions (mercury, copper, arsenic, chromium, zinc and lead) and impurities in barite. Various pollutants and heavy metals in the soil not only can cause great harm to local underground water and soil, but also occupy increasingly reduced arable land resources. Therefore, the treatment of solid waste is in need of solution.

Disclosure of Invention

In view of the above-described deficiencies or inadequacies in the prior art, it would be desirable to provide a drilling mud processing apparatus.

The application provides a drilling mud treatment device, which comprises a vibrating screen, a recovered liquid treatment mechanism, a cleaning mechanism and a solid-liquid separation mechanism; a liquid outlet and a rock debris outlet are arranged on the vibrating screen; the recovery liquid treatment mechanism comprises a deaerator, a desander, a desliming device and a centrifuge which are connected in sequence; the deaerator is connected with the liquid outlet; the cleaning mechanism comprises a cleaning box connected with the rock debris outlet; the cleaning box is respectively connected with the wastewater collecting buffer box and the drying box for drying the cleaned rock debris; the buffer tank is also respectively connected with the sand remover, the mud remover and the centrifuge and is used for collecting wastes generated in the treatment process of the recovery liquid; the solid-liquid separation mechanism comprises a high-pressure filter press; the high-pressure filter press is connected with the buffer tank.

Further, the rock debris outlet is connected with the drying box through a conveying belt; the conveyor belt passes through the cleaning tank.

Further, a high-pressure spray head for cleaning is arranged on the cleaning box; the high-pressure spray head is connected with a water supply system.

Further, the high-pressure spray head is also connected with a medicine supply box; the medicine supply box is filled with a medicament for removing the milk.

Furthermore, the drying box is also connected with a high-pressure filter press and used for drying the mud cakes separated from the high-pressure filter press.

The application has the advantages and positive effects that: the solid-liquid separation is carried out on the solid-liquid in the mud through the vibrating screen, the residual mud liquid on the rock debris is removed through the cleaning mechanism, the impurities in the recovery liquid are removed through the recovery liquid treatment mechanism, the impurities in the recovery liquid treatment mechanism and the waste water generated in the cleaning mechanism are separated through the buffer tank, and the impurities in the buffer tank are subjected to solid-liquid separation through the solid-liquid separation mechanism, so that the recyclable recovery liquid and harmless mud cakes are obtained.

Drawings

FIG. 1 is a schematic block diagram of a drilling mud treatment device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a cleaning tank of the drilling mud treatment device according to the embodiment of the present application.

The text labels in the figures are represented as: 100-a vibrating screen; 110-liquid drain; 120-a rock debris outlet; 200-a deaerator; 300-a desander; 400-a desliming device; 500-centrifuge; 600-a cleaning box; 610-high pressure spray head; 620-a first supply box; 700-cache box; 800-drying oven; 810-a conveyor belt; 900-high pressure filter press.

Detailed Description

The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.

Referring to fig. 1, the present embodiment provides a drilling mud treatment device, which includes a vibrating screen 100, a recovered liquid treatment mechanism, a cleaning mechanism, and a solid-liquid separation mechanism; a liquid outlet 110 and a rock debris outlet 120 are arranged on the vibrating screen 100; the slurry can be subjected to preliminary solid-liquid separation through the vibrating screen 100, rock debris cannot be discharged from the rock debris outlet 120 through the screen, and recovered liquid passing through the screen is discharged through the liquid outlet 110; the rock debris outlet 120 is connected with the cleaning mechanism and the drying box 800 through a conveyor belt 810; the cleaning mechanism comprises a cleaning box 600, the conveyor belt 810 penetrates through the cleaning box 600, and two ends of the conveyor belt are respectively positioned at the rock debris outlet 120 and the inlet of the drying box 800; residual slurry is removed when the rock debris passes through the cleaning box 600, the cleaned rock debris is inconvenient to store and transport due to carrying a small amount of water, the rock debris is continuously transmitted into the drying box 800 by the conveyor belt 810 to be dried, and pollution-free rock debris is obtained after the rock debris is dried; the liquid outlet 110 is connected with a recovery liquid processing mechanism; the recovery liquid treatment mechanism comprises a deaerator 200, a desander 300, a deslimer 400 and a centrifuge 500 which are connected in sequence; the deaerator 200 is connected with the liquid outlet 110, gas in the recovery liquid is firstly discharged through the deaerator 200, corresponding waste in the recovery liquid is separated through the desander 300, the deslimer 400 and the centrifuge 500 in sequence, the separated waste is collected through the buffer tank 700, and the buffer tank 700 is also used for collecting waste water generated in the cleaning tank 600; the solid-liquid separation mechanism comprises a high-pressure filter press 900, and the high-pressure filter press 900 is used for performing solid-liquid separation on the mixture in the buffer tank 700 to obtain reusable recovered liquid and pollution-free mud cakes.

Referring further to fig. 2, in a preferred embodiment, the cleaning tank 600 is provided with a corresponding high pressure nozzle 610 corresponding to the debris on the conveyor belt 810, so that the residual slurry on the debris can be washed clean by high pressure water flow, and pollution-free debris can be obtained.

In a preferred embodiment, the high-pressure sprayer 610 is further connected to a first medicine supply box 620, the first medicine supply box 620 is filled with a medicine for demulsification, and the first medicine supply box 620 continuously injects the medicine into the high-pressure sprayer 610 in proportion, so that the cleaning effect on the rock debris is improved.

In a preferred embodiment, the drying chamber 800 is further connected to a high pressure filter press 900 for drying the separated cake from the high pressure filter press 900.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the present application.

Claims

1. A drilling mud processing device is characterized by comprising a vibrating screen (100), a recovered liquid processing mechanism, a cleaning mechanism and a solid-liquid separation mechanism;

a liquid outlet (110) and a rock debris outlet (120) are arranged on the vibrating screen (100);

the recovery liquid treatment mechanism comprises a deaerator (200), a desander (300), a desliming device (400) and a centrifuge (500) which are connected in sequence; the deaerator (200) is connected with the liquid outlet (110);

the cleaning mechanism comprises a cleaning tank (600) connected with the rock debris outlet (120); the cleaning box (600) is respectively connected with a buffer box (700) for collecting waste water and a drying box (800) for drying the cleaned rock debris;

the buffer tank (700) is also respectively connected with the desander (300), the desliming device (400) and the centrifuge (500) and is used for collecting wastes generated in the treatment process of the recovery liquid;

the solid-liquid separation mechanism comprises a high-pressure filter press (900); the high-pressure filter press (900) is connected with the buffer tank (700).

2. Drilling mud treatment plant according to claim 1, characterized in that the connection between the debris outlet (120) and the drying box (800) is via a conveyor belt (810); the conveyor belt (810) passes through the washing tank (600).

3. Drilling mud treatment plant according to claim 1, characterized in that the washing tank (600) is provided with a high-pressure nozzle (610) for washing; the high-pressure spray head (610) is connected with a water supply system.

4. A drilling mud treatment plant according to claim 3, characterized in that the high pressure nozzles (610) are also connected to a supply tank (620); the medicine supply box (620) is internally provided with a medicament for removing the milk.

5. Drilling mud treatment plant according to claim 1, characterized in that the drying chamber (800) is also connected to the high pressure filter press (900) for drying the separated mud cake from the high pressure filter press (900).