CN203382594U - Unconventional fracturing flowback fluid reinjection treatment system - Google Patents
Unconventional fracturing flowback fluid reinjection treatment system Download PDFInfo
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- CN203382594U CN203382594U CN201320431296.3U CN201320431296U CN203382594U CN 203382594 U CN203382594 U CN 203382594U CN 201320431296 U CN201320431296 U CN 201320431296U CN 203382594 U CN203382594 U CN 203382594U
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Abstract
The utility model discloses an unconventional fracturing flowback fluid reinjection treatment system comprising a gel breaking coagulation reaction tank connected with a sewage inlet and a fine filtration tower connected with a sewage outlet, wherein a disc filter press and a pH value adjusting tank are sequentially connected between the gel breaking coagulation reaction tank and the fine filtration tower through a pipeline; a power-enhanced agitator is arranged inside the gel breaking coagulation reaction tank; a Fe/C micro-electrolysis reaction tank is also connected in parallel between the gel breaking coagulation reaction tank and the disc filter press; the Fe/C micro-electrolysis reaction tank is also connected with an air compressed aerator. The unconventional fracturing flowback fluid reinjection treatment system has the following advantages: 1, the unconventional fracturing flowback fluid is subjected to efficient gel breaking and coagulation treatment; 2, the traditional treatment method is replaced, and the oil, organic matters, suspended matters and color scales in sewage are well removed; 3, the unconventional fracturing flowback fluid reinjection treatment system is simple in process, reliable in performance and convenient to operate and maintain; 4, the quality standard of reinjection water can be completely met, the oil content in the sewage is lower than 30mg/L, the suspended matter content in the sewage is lower than 10mg/L, and the pH value of the sewage ranges from 6 to 9.
Description
Technical field
The utility model relates to fracturing outlet liquid re-injection technology, specifically unconventional fracturing outlet liquid re-injection treatment system.
Background technology
Fracturing outlet liquid mainly refers to return from Oil/gas Well the remaining fracturing liquid of discharge after pressing crack construction, composition mainly comprises that pressure break original gelatin and broken glue return discharge opeing, contain guanidine glue, formaldehyde, petroleum-type and other various additives, if returning the fracturing liquid that drains into ground effluxes without processing, will be to surrounding environment, especially farm crop and surface drainage system pollute.
Shengli Oil Field has been verified in 6.26 hundred million tons of oil and gas reserves not employing, and 45% belongs to the special unconventional hydrocarbon-bearing pool such as hypotonic in Sha,Di hole, dam, beach.Day by day maturation along with unconventional exploitation supporting technology, this type of exploitation will become in future one of Main Means of oil-field development, but this development tool also can be brought a large amount of unconventional fracturing outlet liquids simultaneously, and because the composition of different systems, dissimilar fracturing outlet liquid is widely different, it is again multiphase mixture, the organism of high molecular not only forms complexity, molecular weight is from tens0000 to millions of, intractability is larger, adopt conventional Coagulation Method, can't reach the water quality standard of re-injection water.
Summary of the invention
The purpose of this utility model is to provide unconventional fracturing outlet liquid re-injection treatment system, and the water quality oil-contg after processing, suspension content, pH all can reach the water-quality guideline of re-injection water.
In order to reach above-mentioned purpose, the utility model has adopted following technical scheme, unconventional fracturing outlet liquid re-injection treatment system, comprise the broken glue coagulating tank be connected with the sewage import, the smart filter tower be connected with sewage outlet, between described broken glue coagulating tank and smart filter tower, be connected with disc type pressure filter and pH regulator pond by pipeline successively.
Described broken glue coagulating tank inside is provided with the reinforcement agitator.
Be provided with topping-up pump on pipeline between described broken glue coagulating tank and disc type pressure filter, be provided with smart filter tower on pipeline between described pH regulator pond and smart filter tower and import and export under meter and topping-up pump, be provided with stopping valve on pipeline between described disc type pressure filter and pH regulator pond, described sewage import and sewage outlet also are provided with stopping valve.
Also be parallel with Fe/C micro-electrolysis reaction tank between described broken glue coagulating tank and disc type pressure filter.
Also be connected with the pneumatics aerator on described Fe/C micro-electrolysis reaction tank, described pneumatics aerator is connected on Fe/C micro-electrolysis reaction tank by the pneumatics aerator aeration head of self, the inner Fe/C filler of filling of Fe/C micro-electrolysis reaction tank.
Be provided with topping-up pump on pipeline between described Fe/C micro-electrolysis reaction tank and disc type pressure filter, described Fe/C micro-electrolysis reaction tank and broken glue coagulating tank arrange two connecting pipes, on one of them pipeline, topping-up pump is set, on another pipeline, stopping valve is set, on the pipeline between described Fe/C micro-electrolysis reaction tank and pneumatics aerator, is provided with the air intlet stopping valve.
Compared to prior art, the utlity model has following beneficial effect:
At first open stopping valve fracturing outlet liquid is squeezed into brokenly in glue coagulating tank, under agitation add potassium permanganate, the macromolecule organic in unconventional fracturing outlet liquid, low-molecular-weight surfactant and related impurities have been formed to the broken glue of organic colloid solution oxide.Water after broken glue is squeezed in the disc type pressure filter and filtered by topping-up pump, sewage after filtration is squeezed into water in Fe/C micro-electrolysis reaction tank by topping-up pump again, open the pneumatics aerator and the air intlet stopping valve carries out aeration, improve Fe/C micro-electrolysis reaction efficiency with this, then open stopping valve, after micro-electrolysis, water is put into brokenly glue coagulating tank, at stirring action, add the Tai-Ace S 150 coagulation, be hydrolyzed the poly-hydroxy aluminium inorganic polymer product formed by coagulating agent, and play compression double electric layer, volume is swept, net such as catches at the coagulation, throwing out is further to the organism in sewage, oil in water emulsion and suspended substance are removed, by topping-up pump, water is squeezed in the disc type pressure filter and filtered again, water outlet enters the pH regulator pond and regulates pH, water is inputted to smart filter tower under the effect of topping-up pump and filtered rear water outlet.
The utlity model has following advantage:
1, unconventional fracturing outlet liquid is broken to glue, coagulating treatment efficiently.
2, replaced original traditional treatment method, to the oil in sewage, organism, suspended substance, colourity is well removed.
3, technique is simple, dependable performance, convenient operating maintenance.
4, can meet the water quality standard of re-injection water fully, in sewage, oleaginousness is less than 30mg/L, and in water, suspension content is less than 10mg/L, and the pH of sewage is between 6 ~ 9.
The accompanying drawing explanation
The structural representation that Fig. 1 is the unconventional fracturing outlet liquid re-injection of the utility model treatment system;
Fig. 2 is broken glue coagulating tank schematic diagram;
Fig. 3 is Fe/C micro-electrolysis reaction tank schematic diagram.
In figure: 1 is the pneumatics aerator; 2 is the air intlet stopping valve; 3 is Fe/C micro-electrolysis reaction tank; 4,6,12,16 is topping-up pump; 5 is broken glue coagulating tank; 8,10 is stopping valve; 7 is the disc type pressure filter; 9 is the pH regulator pond; 11 is that smart filter tower is imported and exported under meter; 13 is smart filter tower; 14 is the sewage inlet shutoff valve; 15 is the sewage outlet stopping valve; 17 is the reinforcement agitator; 18 is pneumatics aerator aeration head; 19 is the Fe/C filler.
Embodiment
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, yet accompanying drawing only provides the use of reference with explanation, not is used for the utility model is limited.
Shown in figure 1-3, unconventional fracturing outlet liquid re-injection treatment system, comprise the broken glue coagulating tank 5 be connected with the sewage import, the smart filter tower 13 be connected with sewage outlet, between described broken glue coagulating tank and smart filter tower, be connected with disc type pressure filter 7 and pH regulator pond 9 by pipeline successively.Described broken glue coagulating tank inside is provided with reinforcement agitator 17.Be provided with topping-up pump 6 on pipeline between broken glue coagulating tank and disc type pressure filter, be provided with smart filter tower on pipeline between described pH regulator pond and smart filter tower and import and export under meter 11 and topping-up pump 12, be provided with stopping valve 8 on pipeline between described disc type pressure filter and pH regulator pond, described sewage import and sewage outlet also are provided with stopping valve, are respectively sewage inlet shutoff valve 14, sewage outlet stopping valve 15.
Also be parallel with Fe/C micro-electrolysis reaction tank (iron-carbon micro-electrolysis retort) 3 between broken glue coagulating tank and disc type pressure filter.Also be connected with pneumatics aerator 1 on described Fe/C micro-electrolysis reaction tank, described pneumatics aerator is connected on Fe/C micro-electrolysis reaction tank by the pneumatics aerator aeration head 18 of self, the inner Fe/C filler 19 of filling of Fe/C micro-electrolysis reaction tank.Be provided with topping-up pump 16 on pipeline between described Fe/C micro-electrolysis reaction tank and disc type pressure filter, Fe/C micro-electrolysis reaction tank and broken glue coagulating tank arrange two connecting pipes, topping-up pump 4 is set on one of them pipeline, stopping valve 10 is set on another pipeline, on the pipeline between described Fe/C micro-electrolysis reaction tank and pneumatics aerator, is provided with air intlet stopping valve 2.
Embodiment 1:
As shown in Figure 1, at first the utility model opens stopping valve 14 by the broken glue coagulating tank 5 of fracturing outlet liquid input, under the effect of reinforcement agitator 17, the pH that regulates sewage is 10.0, then adding mass concentration is 0.10% potassium permanganate, and the macromolecule organic in unconventional fracturing outlet liquid, low-molecular-weight surfactant and related impurities have been formed to the broken glue of organic colloid solution oxide.Under the effect of reinforcement agitator 17, continuing to add mass concentration is 0.3% Tai-Ace S 150 coagulation, by coagulating agent compression double electric layer, volume is swept, net is caught etc., act on further to the organism in sewage, oil in water emulsion and suspended substance are removed, by topping-up pump 6, water is inputted in disc type pressure filter 7 and filtered again, water outlet enters pH regulator pond 9 and regulates pH, water is inputted to smart filter tower 13 under the effect of topping-up pump 12 and is filtered rear water outlet, and under meter 11 is used for measuring the sewage speed that enters smart filter tower.
Embodiment 2:
As shown in Figure 1, at first the utility model is opened stopping valve 14 fracturing outlet liquid is squeezed into brokenly in glue coagulating tank 5, under the effect of reinforcement agitator 17, the pH that regulates sewage is 10.0, then adding mass concentration is 0.10% potassium permanganate, and the macromolecule organic in unconventional fracturing outlet liquid, low-molecular-weight surfactant and related impurities have been formed to the broken glue of organic colloid solution oxide.Water after broken glue is inputted in disc type pressure filters 7 and filtered by topping-up pump 6, sewage after filtration is inputted water in Fe/C micro-electrolysis reaction tank 3 by topping-up pump 16 again, open pneumatics aerator 1, air intlet stopping valve 2, the pH that regulates sewage is 3.0, aeration is by water cycle, increase water contacts with Fe/C filler 19, micro-electrolysis reaction, rise at pH at 6 o'clock by 3.0, open stopping valve 10, sewage is put into brokenly glue coagulating tank 5, under the effect of reinforcement agitator 17, adding mass concentration is 0.3% Tai-Ace S 150 coagulation, pass through compression double electric layer, volume is swept, the net effect of catching etc. is further to the organism in sewage, oil in water emulsion and suspended substance are removed, by topping-up pump 6, water is inputted in disc type pressure filter 7 and filtered again, water outlet enters pH regulator pond 9 and regulates pH, water is inputted to smart filter tower 13 under the effect of topping-up pump 12 and filtered rear water outlet, under meter 11 is used for measuring the sewage speed that enters smart filter tower.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (6)
1. unconventional fracturing outlet liquid re-injection treatment system, it is characterized in that, comprise the broken glue coagulating tank be connected with the sewage import, the smart filter tower be connected with sewage outlet, between described broken glue coagulating tank and smart filter tower, be connected with disc type pressure filter and pH regulator pond by pipeline successively.
2. unconventional fracturing outlet liquid re-injection treatment system according to claim 1, is characterized in that, described broken glue coagulating tank inside is provided with the reinforcement agitator.
3. unconventional fracturing outlet liquid re-injection treatment system according to claim 1, it is characterized in that, be provided with topping-up pump on pipeline between described broken glue coagulating tank and disc type pressure filter, be provided with smart filter tower on pipeline between described pH regulator pond and smart filter tower and import and export under meter and topping-up pump, be provided with stopping valve on pipeline between described disc type pressure filter and pH regulator pond, described sewage import and sewage outlet also are provided with stopping valve.
4. unconventional fracturing outlet liquid re-injection treatment system according to claim 1, is characterized in that, between described broken glue coagulating tank and disc type pressure filter, also is parallel with Fe/C micro-electrolysis reaction tank.
5. unconventional fracturing outlet liquid re-injection treatment system according to claim 4, it is characterized in that, also be connected with the pneumatics aerator on described Fe/C micro-electrolysis reaction tank, described pneumatics aerator is connected on Fe/C micro-electrolysis reaction tank by the pneumatics aerator aeration head of self, the inner Fe/C filler of filling of Fe/C micro-electrolysis reaction tank.
6. unconventional fracturing outlet liquid re-injection treatment system according to claim 5, it is characterized in that, be provided with topping-up pump on pipeline between described Fe/C micro-electrolysis reaction tank and disc type pressure filter, described Fe/C micro-electrolysis reaction tank and broken glue coagulating tank arrange two connecting pipes, on one of them pipeline, topping-up pump is set, on another pipeline, stopping valve is set, on the pipeline between described Fe/C micro-electrolysis reaction tank and pneumatics aerator, is provided with the air intlet stopping valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320431296.3U CN203382594U (en) | 2013-07-19 | 2013-07-19 | Unconventional fracturing flowback fluid reinjection treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320431296.3U CN203382594U (en) | 2013-07-19 | 2013-07-19 | Unconventional fracturing flowback fluid reinjection treatment system |
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| CN203382594U true CN203382594U (en) | 2014-01-08 |
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| CN201320431296.3U Expired - Fee Related CN203382594U (en) | 2013-07-19 | 2013-07-19 | Unconventional fracturing flowback fluid reinjection treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517590A (en) * | 2016-12-07 | 2017-03-22 | 中国石油集团西部钻探工程有限公司 | Treating and recycling device for backflow fracturing fluid and treating and recycling method for backflow fracturing fluid |
| CN112624411A (en) * | 2020-12-17 | 2021-04-09 | 华东理工大学 | Deep purification method and device for fracturing flowback fluid |
-
2013
- 2013-07-19 CN CN201320431296.3U patent/CN203382594U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517590A (en) * | 2016-12-07 | 2017-03-22 | 中国石油集团西部钻探工程有限公司 | Treating and recycling device for backflow fracturing fluid and treating and recycling method for backflow fracturing fluid |
| CN112624411A (en) * | 2020-12-17 | 2021-04-09 | 华东理工大学 | Deep purification method and device for fracturing flowback fluid |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20150719 |
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| EXPY | Termination of patent right or utility model |