Oilfield produced water treatment system and oilfield produced water treatment method
A treatment system and treatment method technology are applied in the field of oilfield produced water treatment systems, and can solve the problems of inability to meet the reinjection requirements of ternary composite flooding technology, serious emulsification of produced water, and increased oil droplet repulsion.
Inactive Publication Date: 2012-06-13
成都晶宝科技有限公司 +1
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Problems solved by technology
However, the produced water produced by the ASP flooding technology is seriously emulsified, the repulsion of oil droplets increases, and contains a large amount of polymers, which makes the separation difficult. Meet the reinjection requirements of ASP flooding technology
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[0017] The oilfield produced water treatment system and the oilfield produced water treatment method will be further clarified below in conjunction with the accompanying drawings and specific implementation methods.
[0018] see figure 1 , an oilfield produced water treatment system 100 according to an embodiment, comprising a regulating pool 10, a demulsifier mixer 21, a demulsifier feeding device 23, a vortex air flotation device 30, a flocculant mixer 41, a flocculator feeding device 43, a shallow pool Air flotation device 50 , purification tank 60 , sand filter tank 70 and water storage tank 80 .
[0019] The regulating water pool 10 is used to collect oilfield produced water. The produced water from the oil field is injected into the regulating pool 10 .
[0020] The demulsifier mixer 21 communicates with the regulating pool 10 through a pipeline. The oilfield produced water collected by the adjustment pool 10 is injected into the demulsifier mixer 21 through the water...
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Abstract
An oilfield produced water treatment system comprises a cavitation air floating device, a shallow pool air floating device, a purifying pool and a sand filtering pool which are sequentially communicated through pipelines. The cavitation air floating device is used for conducting first stage treatment on oilfield produced water, the shallow pool air floating device is used for conducting second stage treatment on the oilfield produced water passing through the first stage treatment, the purifying pool is used for conducting sterilization treatment on oilfield produced water passing through the second stage treatment, and the sand filtering pool is used for conducting sand filtering on the oilfield produced water passing through the sterilization treatment. The oilfield produced water treatment system is good in effect. An oilfield produced water treatment method is further provided.
Description
【Technical field】 [0001] The invention relates to an oilfield produced water treatment system and an oilfield produced water treatment method using the oilfield produced water treatment system. 【Background technique】 [0002] At present, some oilfields have carried out tests of tertiary oil recovery using ASP flooding technology. The so-called ternary means that caustic soda, surfactant and polyacrylamide are matched in a certain proportion. Because the ASP flooding technology can comprehensively exert the synergistic effect of different chemical agents, it can increase the recovery rate by about 20% compared with the general water flooding method, and thus may become an important method for greatly improving oil recovery rate. However, the produced water produced by the ASP flooding technology is seriously emulsified, the repulsion of oil droplets increases, and contains a large amount of polymers, which makes the separation difficult. Meet the reinjection requirements of...
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IPC IPC(8): C02F9/04C02F103/10
Inventor 周泽宇周湧徐永春吴鉴吕小鸿冯欣悦周巍
Owner 成都晶宝科技有限公司