Oil field fracturing flow-back fluid purification treatment device

Abstract

The invention provides an oil field fracturing flow-back fluid purification treatment device. The device comprises a water tank, a separation tank and sleeves; brackets are mounted at the bottoms of the sleeve and the separation box through bolts; a water pipe is welded to one side of the sleeve; an adding pipe is welded to the top of the water pipe. A clamping sleeve is welded to the outer side of the sleeve; an air pipe is welded to the top of the clamping sleeve. The sleeve is communicated with the separation box through a through pipe; an inlet pipe is welded on the other side of the separation box; according to the oil field fracturing flow-back fluid purification treatment device, residual free pollutants in water can be effectively adsorbed; purification quality of water is guaranteed, investment of chemicals and equipment is reduced; the fracturing flow-back fluid purification device has the advantages that strong oscillation is generated on fracturing flow-back fluid, chemicals can be quickly and uniformly mixed, the purification rate of the fracturing flow-back fluid is increased, the outer side of a filter cartridge can be back-blown, impurities in the filter cartridge can be blown off, the filter cartridge does not need to be replaced or peer-to-peer filter cartridge does not need to be cleaned, and the device is suitable for purification treatment of oilfield fracturing flow-back fluid.

Description

technical field [0001] The invention relates to the technical field of purification treatment of fracturing flowback fluid, in particular to an oilfield fracturing flowback fluid purification treatment device. Background technique [0002] Fracturing fluid is an important part of fracturing technology. Its main function is to create fractures and transport proppant along the open fractures. Therefore, the viscosity of the fluid is very important, and it can be flowed back quickly after operation with oily water. Further, the fracturing flowback fluid is formed, and with the continuous extension of oil exploitation time, the produced water continues to rise, and some even reach more than 90%, the sewage treatment volume increases rapidly, which brings huge pressure to environmental protection, so it is necessary to The fracturing flowback fluid can only be discharged outside after undergoing strict purification treatment. The patent application publication number is CN2019107...

AI Technical Summary

Problems solved by technology

[0002] Fracturing fluid is an important part of fracturing technology. Its main function is to create fractures and transport proppant along the open fractures. Therefore, the viscosity of the fluid is very important, and it can be flowed back quickly after operation with oily water. Further, the fracturing flowback fluid is formed, and with the continuous extension of oil exploitation time, the produced water continues to rise, and some even reach more than 90%, the sewage treatment volume increases rapidly, which brings huge pressure to environmental protection, so it is necessary to The fracturing flowback fluid can only be discharged outside after undergoing strict purification treatment. The patent application publication number is CN201910711767.8, which discloses a shale gas fracturing flowback fluid treatment method and system device. The existing The fracturing flowback fluid purification treatment device has the advantages of mature technology, firm structure, simple operation, etc., and can meet the requirements for the purification treatment of oil field fracturing flowback fluid. However, for the existing fracturing flowback fluid purification treatment device In other words, on the one hand, after chemical purification treatment, a certain amount of pollutants in the water often remain in the form of ions, which cannot be completely removed. If it is treated again with chemical agents, it is necessary to add a whole set of treatment equipment. Increasing the investment of equipment is not conducive to popularization and use. On the other hand, when using chemicals for purification treatment, it is necessary to completely mix the chemicals with the fracturing flowback fluid. The mixing speed of ordinary mixing equipment is slow, and the mixing effect is poor. It is beneficial to improve the purification treatment speed of the fracturing flowback fluid. On the other hand, after the purification treatment with chemicals, the sediment generated is easy to block the filter screen during the filtration process, which needs to be replaced or cleaned regularly, which affects the operation of the equipment.

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