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A technology of oil extraction wastewater and treatment agent, which is applied in mining wastewater treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of single function, low oil removal rate, large dosage, etc. Toxic effects
Inactive Publication Date: 2013-01-30
E TECH ENERGY TECH DEV CORP
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Abstract
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Problems solved by technology
There are technical problems such as spending a lot of money on building new treatment stations or adding new treatment equipment, developing high-efficiency flocculants and treatment methods, and treating polymer sewage.
The commonly used organic polymer flocculants have the disadvantages of simple formula, single function, large dosage and low oil removal rate.
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Embodiment 1
[0018] Preparation and application of wastewater treatment agent containing poly-oil extraction:
[0019] Composition ratio (by weight): PDMC: 5%, PAC: 90%, polyquaternary ammonium salt inverse demulsifier: 5%.
[0020] Preparation method: According to the formula, it is made by mechanically mixing uniformly.
[0021] Test object: The sewage containing polymer collected at the sampling point.
[0022] Experimental method: Measure 100 mL of wastewater containing polymer, add treatment agents of different concentrations, shake well, and observe the phenomenon. The results are shown in Table 1.
[0023] Table 1 Water purification effects of different concentration treatment agents
[0024]
Embodiment 2
[0026] Preparation and application of wastewater treatment agent containing poly-oil extraction:
[0027] Composition ratio (by weight): PDMC: 5%, PAC: 85%, polyquaternary ammonium salt inverse demulsifier: 10%.
[0028] The preparation method, experimental objects and experimental methods of the wastewater treatment agent containing poly-oil extraction are the same as those in Experiment 1, and the experimental results are shown in Table 2.
[0029] Table 2 Water purification effects of different concentration treatment agents
[0030]
Embodiment 3
[0032] The composition ratio of the poly-oil-containing wastewater treatment agent of the present invention is (by weight): PDMC: 10%, PAC: 85%, and polyquaternary ammonium salt inverse demulsifier: 5%.
[0033] The preparation and experimental conditions are as in Example 1, and the results are shown in Table 3.
[0034] Table 3 Water purification effects of different concentration treatment agents
[0035]
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Abstract
The invention relates to a polymer-containing oil-field wastewater treating agent belonging to the technical field of oil-field wastewater treatment. The polymer-containing oil-field wastewater treating agent is characterized by comprising the following components by mass percent: 80-90% of PAC (Polymeric Aluminum Chloride), 5-10% of organic positive ion high polymer, and 5-10% of polyquaternium anti-phase demulsifying agent. The polymer-containing oil-field wastewater treating agent provided by the invention is prepared by using a compound method; the water treating agent has very strong flocculation and demulsification effect, and the organic impurities and emulsified oil contained in the oil-field wastewater can be effectively eliminated; and the polymer-containing oil-field wastewater treating agent has the advantages of simple component, convenience in preparation, high speed and efficiency, low cost, wide application range, high demulsification efficiency, small use amount, no toxic and side effect, obvious water purification and the like.
Description
Technical field [0001] The invention belongs to the technical field of oilfield wastewater treatment technology, and particularly relates to a polymer-containing oil extraction wastewater treatment agent. Background technique [0002] At present, polymer flooding is an effective process to improve the recovery of crude oil. The area and output of polymer flooding are continuously increasing, and it plays an irreplaceable role in ensuring the stable production of crude oil in the oilfield. However, as polymerization With the expansion of the application scale of material flooding, the difficulty of processing the produced wastewater has increased. Compared with the water quality conditions of water flooding oil production wastewater, polymer flooding oil production wastewater not only contains high oil content, but also contains a large amount of polymer. The presence of polymer increases the viscosity of the water phase, enhances the oil-carrying capacity of the water phase, and...
Claims
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Application Information
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