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Novel treatment method for high polymer sewage from oil extraction

A treatment method and technology for sewage treatment, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve problems such as high price, good flocculation effect, and application limitations

Active Publication Date: 2010-06-09
杨祺
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing flocculants, especially organic polymer flocculants, have good flocculation effect, are expensive, and their application is limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Take the high-polymerization oil production sewage of Dongyi Union Station of Gudong Oil Production Plant of Shengli Oilfield as an example:

[0018] (1) Compare with the existing two-stage settlement and one-stage pressure filtration sewage treatment facilities in East-Union Station.

[0019] (2) Preparation of high-efficiency and low-cost inorganic cationic flocculant; take calcium carbide slag as the main raw material, first make carbide slag solution according to the ratio of water: carbide slag = 2: 1, and then press carbide slag: 30% hydrochloric acid = 9: 1 Stir the reaction in the reaction kettle for 30 minutes (the reaction temperature is 50-60° C.) and install a tail gas adsorption device.

[0020] (3) Take 20M of high-polymer sewage and inject high-efficiency and low-priced inorganic cationic flocculants into the sewage delivery pipeline according to the ratio of high-polymer oil extraction sewage: efficient and low-priced inorganic cationic flocculants (temp...

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PUM

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Abstract

The invention discloses a novel treatment method for high polymer sewage from oil extraction, which is comprehensive utilization of existing high polymer sewage treatment facilities of the oil field, high-efficient and low-cost preparation of an inorganic positive ion flocculant, two-stage flocculation setting, one-time pressure filtering and production of sludge.

Description

technical field [0001] The invention relates to providing a sewage treatment technology, especially a treatment method for high-polymer oil production sewage. Background technique [0002] Oilfield polymer flooding wastewater treatment is an important link in oil production. With the extension of oilfield exploitation period, the importance of oilfield polymer flooding wastewater treatment (referred to as high polymer wastewater) becomes more and more important. The wastewater produced by polymer flooding contains a certain amount of residual polymer-hydrolyzed polyacrylamide (HPAM). The presence of polyacrylamide leads to high viscosity of high-polymer oil recovery wastewater, small emulsified oil droplet size (3-5 μm), high oil droplet film strength, and good stability of oil droplets and suspended particles. The existing conventional water flooding oily wastewater treatment technology is Its adaptability is poor, and the water quality of the treated water is difficult to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C04B7/24C02F1/52
CPCY02P40/10
Inventor 杨忠刚
Owner 杨祺
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