Gel breaking treatment device for oil and gas field wastewater

By using the combination technology of pretreatment device, gas float device and cyclone flocculator in the oil and gas field wastewater treatment, the problems of high treatment cost, low efficiency and poor rubber breaking effect in the prior art are solved, and efficient and economical wastewater treatment effect is achieved.

CN222684457UActive Publication Date: 2025-03-28CHENGDU SOTEC TECH CO LTD
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Patent Information

Application Number
CN202420921177.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-29
Publication Date
2025-03-28
Estimated Expiration
2034-04-29

AI Technical Summary

Technical Problem

The existing oil and gas field wastewater treatment technology has the problems of high treatment costs, low efficiency and poor rubber breaking effect, especially in the presence of high concentrations of oil, organic matter and suspended matter.

Method used

A rubber-breaking treatment device for oil and gas field wastewater is adopted, including a pretreatment device, a gas float device and a cyclone flocculator. The pretreatment device intercepts large particles of suspension through the grid, and the air float device floats up and removes the grease through the combination of the dissolved air tank and the air compressor. The cyclone flocculator destroys the stability of the colloidal substance through the setting of the stirring pump and the baffle plate, thereby improving the glue breaking efficiency.

Benefits of technology

It effectively reduces the treatment cost, improves the rubber breaking efficiency of wastewater, improves the quality of effluent, reduces the risk of congestion of subsequent process equipment, and ensures the normal operation of the system.

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Abstract

The utility model relates to the field of sewage treatment, and discloses an oil and gas field wastewater gel breaking treatment device which comprises a pretreatment device, an air flotation device and a rotational flow flocculator which are connected in sequence, the pretreatment device comprises a water tank body, a grating plate is arranged in the water tank body and divides the water tank body into a first area and a second area, a water inlet pipe is arranged at the top of the side wall, close to the first area, of the water tank body, and a water outlet pipe is arranged at the bottom of the side wall, close to the second area, of the water tank body; the air flotation device comprises an air flotation machine body, a dissolved air tank connected with the air flotation machine body and an air compressor connected with the dissolved air tank, a baffle plate I, a baffle plate II and a mud baffle plate are sequentially arranged in the air flotation machine body, and a mud scraper is arranged at the top of the air flotation device. According to the device, through the combined design of the reaction areas with different functions, the rotating speed of each medicament reaction area is adjusted, the stable state of colloids in wastewater is destroyed under the action of different rotating speeds and flocculants, and the effluent quality is improved through mutual cooperative use of medicaments.
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