Device for treating oil production sewage by gravity method and process thereof

A technology of oil extraction sewage and gravity method, applied in the field of oil extraction sewage treatment, can solve the problems of poor effluent quality, high energy consumption, short backwash interval, etc., and achieve the effects of good water quality, low operation cost, and improved oil production output.

Active Publication Date: 2017-05-31
吉林省宏君超滤设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the backwashing interval is short, the quality of the effluent is poor, and the energy consumption is high.

Method used

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  • Device for treating oil production sewage by gravity method and process thereof
  • Device for treating oil production sewage by gravity method and process thereof
  • Device for treating oil production sewage by gravity method and process thereof

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Embodiment

[0027] The methods for treating oil production sewage are gravity method for oil production sewage treatment process. The oil production sewage is transported by the tank truck to the external thermal insulation single well tank of the water treatment station, and the oil production sewage is pumped in a tangential form Enter the vertical sand degreasing device 4, the mud and sand will settle in the cone at the bottom, and the mud and sand will be discharged regularly, once every 15-20 days, and the turbid water will enter the PP filter group 4-3, and the impurities above 5um will settle in the lower part Cone body, sewage below 5um naturally flows into the gravity filter device 7, waste oil floats on the angle of the sloping plate of the tank body at 36.6°, and naturally flows into the sludge tank. The sewage in the gravity filter device 7 is driven into the upper water distributor 7-2 on the upper part of the gravity filter device 7 by the operating pump 3, and falls evenly o...

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PUM

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Abstract

The invention relates to a device for treating oil production sewage by a gravity method. The device is characterized in that a wastewater outlet formed in a lower half section tank wall of an outer heat insulation single well tank is connected with a wastewater inlet of a vertical sand setting deoiler through a pipeline; a sludge discharging opening formed in the bottom of the vertical sand setting deoiler is connected with an oil sludge recovery tank through a pipeline; a PP filter core group is arranged in the middle of the vertical sand setting deoiler; a filter core water outlet of the PP filter core group is connected with gravity filtering equipment through a pipeline; a gas distribution room water outlet formed in the bottom of gravity filtering equipment is connected with a water tank water inlet opening of a pure water safety tank through a pipeline; a revere flushing opening formed in the bottom of the gravity filtering equipment is connected with a water tank water return opening of the pure water safety tank through a backflow pipeline; a small reverse flushing pump and a big reverse flushing pump are arranged on the backflow pipeline. After being treated, the oil production sewage can reach the back injection water standard; the petroleum yield is improved through oil well back injection by purified water; in addition, the reverse flushing time is short; the water consumption is low; the reverse flushing interval time is prolonged; the automation work is realized; the sewage treatment cost is reduced; the environment pollution is reduced; the production efficiency and the economic benefits are improved.

Description

technical field [0001] The invention relates to a device for treating oil production sewage by gravity method and a process thereof, belonging to the field of treatment of oil production sewage. Background technique [0002] At present, the known treatment method of oil production sewage is a pressure filter tank (filter tank), which has a single-layer filter material and a double-layer filter material. The single-layer filter material is quartz sand or manganese sand, and the double-layer filter material is quartz sand and activated carbon. Backwashing is required every 24 hours during operation. The backwashing method is a mixture of air and water. The backwashing uses a lot of air distribution heads. The backwashing time is 40-50 minutes, and the flow rate required for backwashing is 20-25m / s, the water consumption is huge, there is no place for discharge, causing farmland pollution, production decline, conflicts between oil fields and farmers, power consumption is also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D36/04B01D17/025
CPCB01D17/0208B01D36/04
Inventor 赵宏君
Owner 吉林省宏君超滤设备有限公司
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