CN205892970U - Oil shale atmospheric pressure splits and returns flowing back processing apparatus - Google Patents
Oil shale atmospheric pressure splits and returns flowing back processing apparatus Download PDFInfo
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- CN205892970U CN205892970U CN201620774895.9U CN201620774895U CN205892970U CN 205892970 U CN205892970 U CN 205892970U CN 201620774895 U CN201620774895 U CN 201620774895U CN 205892970 U CN205892970 U CN 205892970U
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Abstract
The utility model discloses an oil shale atmospheric pressure splits and returns flowing back processing apparatus, aim at solve the internal problem of returning the flowing back and still not having system, effective solution of splitting to shale atmospheric pressure. The device is including flocculation filter unit, sludge thickening unit, flocculation filter unit is including flocculation coagulator, flocculation doser, coagulant aid doser, agitator, filter. The utility model discloses can satisfy oil shale atmospheric pressure and split the needs that return the flowing back and handle, realize splitting oil shale atmospheric pressure and return getting rid of of CODCr in the flowing back, BOD5, SS and a large amount of chlorions, realize the discharge to reach standard of quality of water, effectively solve the fracturing of different pollutant ingredients and return flowing back pollution treatment problem. The utility model discloses a different water quality processing needs can be satisfied in the modularized design, reach different treatment effects, effectively practice thrift treatment cost, the ecological protection environment. The utility model discloses think about ingenious, reasonable in design, convenient to use, the running cost is low, the treatment effect is good, is worth extensive and promotes and use.
Description
Technical field
The utility model is related to oilfield, especially shale gas field, and specially a kind of oil shale gas pressure break returns row
Liquid processing device.
Background technology
Shale gas are to contain to be available for, in rammell, the natural gas resource exploited, and the shale gas recoverable reserves of China occupies the world the
One.More conventional natural gas is compared, and shale gas exploitation has the advantages that production life of well length and long the production cycle.Country is in shale gas
It is distinctly claimed in " 12 " planning, the exploitation of the unconventional petroleum resources such as propulsion shale gas, increase natural gas resource and supply
Should, alleviate China's natural gas imbalance between supply and demand, readjust the energy structure, promote energy-saving and emission-reduction.It is as a kind of important unconventional energy
Source, is highly valued, and China is also in the upsurge of exploitation shale gas in recent years.
Compared with conventional gas, because shale formation permeability is very low, the development difficulty of shale gas is larger.At present, main
Using fracturing as the Main Means of exploitation shale gas, but after pressing crack construction, to return the process but difficult to reach environmental protection of discharge opeing
Require.Fracturing outlet liquid has that viscosity is big, stability is high, suspension is many, salinity is high and the features such as complicated component, if not carrying out
Deal carefully with, immeasurable loss will be caused to the long term growth that shale gas are developed.Therefore, study shale gas fracturing outlet liquid
Treatment technology, seems increasingly important for the environmental problem alleviating development block, simultaneously for the normal production ensureing shale gas
Also significant with sustainable development.
At present, abroad the processing method of fracturing outlet liquid is mainly and reuses.According to disclosed technical data abroad
Display, they are from production cost and the environmental protection requirement consideration of hydraulic fracturing technology it is believed that the recycling of water resource will be
The trend of future development.Therefore, improve the recycling rate of waterused to existing water resource, the dependence to freshwater resources can be reduced.Weight
The mode of multiple utilization can not only reduce the cost processing fracturing outlet liquid moreover it is possible to reduce contaminants associated discharge.
And domestic at present mainly adopt natural air drying and chemical treatment two ways, fracturing outlet liquid is processed.Its
In, natural air drying is that fracturing outlet liquid is stored in special returning in clean-up pit, takes the method for natural evaporation to carry out mummification,
Afterwards mummification product is directly filled.Which not only needs to take considerable time, and the sludge bulking after landfill still can be percolated out
, there is serious secondary pollution problem in the pollutants such as oil, heavy metal, aldehyde, phenol.
Chemical treatment method is to carry out returning discharge opeing concentration after the pretreatment such as dosing flocculation, filtration, then will return discharge opeing re-injection
To in stratum.The method technological process is complicated, and range of application has some limitations.Simultaneously as the opening of domestic shale gas
Fief area belongs to block newly developed, nearby usually not suitable reinjection well, needs transport to well site farther out, virtually will
Increase chemically treated cost.
It is therefore seen that, the domestic process for shale gas fracturing outlet liquid at present, also do not form system, effective solution
Certainly method.In order to preserve the ecological environment, promote shale gas more preferably, quickly develop, the new technology that research fracturing outlet liquid is processed
Imperative.
The needs being processed based on fracturing outlet liquid, in recent years, foreign study develops the new of some fracturing outlet liquids process
Technology, main inclusion mvr distillation technique, electric flocculation technique and catalytic ozonation technology.These new technology energy effective process pressures
Split and return discharge opeing, remove petroleum-type, suspension and hardly degraded organic substance, no matter economically or from treatment effect, can
Reach recycling to require and discharge standard.Now it is directed to these new technologies, be further elaborated.
Mvr (English full name: mechanical vapor recompression) distillation technique refers to mechanical steam again
Compress technique, it can re-use the indirect steam energy of oneself generation, thus reducing the demand of the energy to external world.Mvr distills
Equipment is generally made up of parts such as evaporimeter, heat exchanger, compressor and centrifuges, is mainly used in removing the weight in fracturing outlet liquid
Metal ion, thus reduce total salinity.Its concrete operating principle is as follows: from evaporator evaporation indirect steam out, passes through
Compressor compresses, pressure and temperature is raised, and meanwhile, heat content increases；Then, deliver to the heating chamber of evaporimeter, as heating
The thermal source of steam uses, and makes liquid maintain fluidized state, and the steam after compressing will be condensed into distilled water.The method makes originally
Steam to be gone out of use is fully utilized, and has reclaimed latent heat, improves efficiency of utilization.
Compared with Conventional espresso technology, advantage in energy conservation for the mvr distillation technique is embodied in: steam is heated room profit
After once, contain most low-quality energy in the indirect steam of generation, collect through compressor, and spending very
On the basis of little electric energy, this part indirect steam is risen to high-quality energy, sends evaporimeter back to and use as thermal source, therefore,
The purpose of energy recycling can be reached.At present, U.S. fountain quail company is just utilizing mvr distillation technique to process pressure
Split and return discharge opeing.The said firm passes through the heat that skid mounted equipment reclaims loss in evaporation or concentration process first, then the heat that will reclaim
It is used for providing fuel for other evaporation process, thus improving energy efficiency.Fracturing outlet liquid after treatment, can obtain pure
Distilled water, and stay is a small amount of salting liquid (wherein comprising all contaminants in fracturing process and residue) concentrating.
Electric flocculation technique is the collaborative work during the course of the reaction using electric energy simultaneously with electrocoagulation, electric floating and electrochemistry
With the method in order to remove the suspension in fracturing outlet liquid and heavy metal ion.Electric flocculation device is generally by power supply, electric flocculation
The parts such as reactor, filter are constituted, and its concrete operating principle is as follows: in the presence of power supply, by the use of iron plate or aluminium sheet as
The anode of electric flocculation reactor, after electrolysis, anode loses electronics, oxidation reaction occurs, and produces iron or aluminium plasma；Warp again
Cross a series of oxidation reaction of hydrolysis, polymerization and ferrous iron, generate various flocculants (as hydroxo complex, multinuclear hydroxo complex
And hydroxide), make colloid pollution thing in sewage, suspension loss of stability in the presence of flocculant；Finally, take off surely
Colliding with each other between rear pollutant and flocculant, generating macroscopic big flocculating body, thus reaching detached purpose.
At present, U.S. halliburton company adopts clean wave technology, destroys pressure break by vehicle mounted electric flocculation plant
Return the stable dispersion state of colloid substance in discharge opeing.When fracturing outlet liquid enters this device, anode discharges the ion of positively charged,
And combine with ion electronegative on colloidal particle, produce cohesion；Meanwhile, the bubble that negative electrode produces is attached on coagulation,
Make it float to the water surface, then removed by separator, and heavier flocculate sinks to the bottom and discharges.
Catalytic ozonation technology is ozone and treatment technology associated with activated carbon, its equipment generally by catalytic reactor,
Air source of the gas processing system, cooling water system, ozone generator etc. form, mainly in order to remove the difficult degradation in fracturing outlet liquid
Organic matter and bacterium.
Traditional ozonation technology typically utilizes the superpower oxidability of ozone, interrupts various hardly degraded organic substances
Carbochain associative key, so as to Quick Oxidation, synthesizes new compound.Compared with conventional chemical oxidizing agent, ozone oxidation current potential
For 2.07v, as oxidizing potential highest, oxidability material the strongest, therefore, it is commonly used for processing hardly degraded organic substance.But
Traditional ozonation technology has certain limitation in range of application, in processing procedure, the removal to pollutant for the ozone
Show selectivity, preferentially fast with reaction rate pollutant is reacted and removes it, and the low pollution of reaction rate
Thing then can not be removed.But hydroxyl can avoid this problem, therefore, ozone needs to form catalysis oxidation with other oxidation technologies
System；Wherein, ozone and activated carbon are exactly typical GC-MS.This technology adopts activated carbon surface appendix nanometer mno2Metal
Oxide as catalyst, to improve its catalysis activity；Meanwhile, there is Hydrodynamic cavitation reaction, promote smelly in addition ultrasonic synergistic
Oxygen solution generates hydroxyl, so that the clearance of hardly degraded organic substance is significantly improved.Wherein, Hydrodynamic cavitation refers to that water enters containing ultrasonic
During the reactor of ripple, because vibration produces ten hundreds of micro-bubbles, and gradually grow up, violent collapse finally occurs, from
And produce removing hydroxyl removal hardly degraded organic substance.
At present, U.S. ecosphere company adopts Catalyzed by Ultrasonic Wave, activated carbon and the synergistic process side of ozone oxidation
Formula, does not use chemical agent, uses ozone layer destroying cell membrane, thus reach killing bacterium, the purpose of suppression fouling.This device is car
Load form, can improve or reduce processing speed, to meet different environmental requirements according to the specific requirement of shale gas exploitation.
However, domestic at present there is no corresponding processing meanss, in the urgent need to a kind of new equipment, returned with meeting domestic pressure break
The needs that discharge opeing is processed.
Utility model content
Goal of the invention of the present utility model is: does not also form system for domestic at present for shale gas fracturing outlet liquid
System, the problem of effective solution, provide a kind of oil shale gas fracturing outlet liquid processing meanss.The utility model disclosure satisfy that
The needs that oil shale gas fracturing outlet liquid is processed, realize to cod in oil shale gas fracturing outlet liquidcr、bod5, ss and a large amount of
The removal of chlorion, realizes the qualified discharge of water quality, and the fracturing outlet liquid pollution of effectively solving difference pollutant component is processed asks
Topic.The utility model adopts modularized design, disclosure satisfy that different quality processes needs, reaches different treatment effects, have
Preferably application prospect, effectively save processing cost, preserve the ecological environment.
To achieve these goals, the utility model adopts the following technical scheme that
A kind of oil shale gas fracturing outlet liquid processing meanss, including flocculation filtration unit, sludge condensation unit；
Described flocculation filtration unit includes: flocculation coagulator, is connected with filter, for carrying out to pending discharge opeing of returning
Flocculation agent-feeding treatment；Flocculation doser, for adding flocculant in flocculation coagulator；Flocculation aid doser, for flocculation
Flocculant aid is added in coagulator；Agitator, for being stirred to the material in flocculation coagulator；Filter, for wadding
Material after solidifying coagulator is processed carries out filtration treatment；
Described sludge condensation unit is connected with flocculation coagulator and sludge condensation unit can be consolidated to flocculation coagulator generation
Body thing carries out concentration.
Described sludge condensation unit include with flocculation coagulator be connected mud screw pump, fold spiral shell dewaterer, described folded spiral shell
Dewaterer is connected with mud screw pump.
Also include pretreatment unit, described pretreatment unit includes:
Delivery pump, is connected with blender, for sending into pending discharge opeing of returning in blender；
Blender, is connected with oil removal unit, for being mutually mixed acid-base modifier with pending discharge opeing of returning；
Conveying fan, is connected with blender, and the waste gas for returning in discharge opeing is discharged；
Oil removal unit, is connected with flocculation filtration unit, returns petroleum substance in discharge opeing and by after oil removal for separating
Return discharge opeing to send in flocculation filtration unit.
Described blender is pipe-line mixer.
Described delivery pump is mechanical membrane pump.
Described conveying fan is axial flow blower.
Also include the water post-processing unit being processed for the water after filter is filtered.
Described water post-processing unit includes: the dtro reuse water device of aqueous phase company after filtering with filter, evaporation and concentration
Device, crystallization apparatus, advanced oxidation device, described dtro reuse water device, evaporation concentration device, crystallization apparatus are sequentially connected, institute
State advanced oxidation device to be connected with dtro reuse water device, evaporation concentration device respectively.
Obtained Standing Committee of State Council with national " water prevention and cure of pollution action plan " before 2015 to pass through, repair through excessive wheel
" ten, the water " changing will carry out strength in many-sides such as sewage disposal, industrial wastewater, comprehensive control pollutant emissions and supervise and open
Move strict system of accountability, iron hand pollution treatment will enter " new normality ".
Traditional " pretreatment+re-injection " pattern, has higher requirements to the compatibility of re-injection layer position lithology, simultaneously to geology feelings
There is the region of tomography, surface occurence or dew point in condition and new production zone cannot use.Therefore, pressure is returned liquid and is adopted water delivery ground
After chemical industry is processed, qualified discharge is the final developing direction that petrochemical wastewater is processed.As can be seen here, pressure is returned liquid and is adopted at water delivery ground
After reason, qualified discharge will face the challenge of arduousness.
The problem existing for above-mentioned prior art, the utility model is provided at the integration of oil shale gas fracturing outlet liquid
Reason device.This device includes pretreatment unit, flocculation filtration unit, sludge condensation unit, water post-processing unit.Wherein, adopt
Flocculation filtration unit, the combination of sludge condensation unit, you can meet not H 2 S-containing gas and oil and draining and do not adopt earth's surface to arrange
The process needs of the water inlet put.
The utility model has intermittent discharge, suspension content height, complicated component and difficult degradation for fracturing outlet liquid
Etc. difficult point, it is capable of to cod in oil shale gas fracturing outlet liquidcr、bod5, effective removal of ss and a large amount of chlorion, and
Realize the qualified discharge of water quality.Meanwhile, the utility model can also meet the fracturing outlet liquid causing due to development block change
The needs of component change, reach different treatment effects, the fracturing outlet liquid pollution problem of the different pollutant component of effectively solving,
Save processing cost, preserve the ecological environment.
The utility model is skillfully constructed, reasonable in design, easy to use, and operating cost is low, and high treating effect disclosure satisfy that stone
The needs that oil shale gas fracturing outlet liquid is processed, effective protection ecological environment.The utility model returns row for domestic shale pressure break
The process of liquid, has important directive significance, worth large-scale promotion and application, has preferable market application foreground and application
It is worth.
Brief description
Fig. 1 is the structural representation of device in embodiment 1.
Fig. 2 returns liquid/adopt water delivery monthly output spirogram for certain wellblock pressure.
Fig. 3 is that zata current potential flocculation sediment affects schematic diagram with ph.
Fig. 4 be certain wellblock certain adopt sedimentation time of flocculation filtration unit of the present embodiment 1 and turbidity comparison diagram.
Fig. 5 is that the pressure of certain flocculation filtration unit using the present embodiment 1 of certain wellblock returns liquid sedimentation time and turbidity, total iron
Content balance figure.
In figure marks: 1 is delivery pump, and 2 is blender, and 3 is conveying fan, and 4 is oil removal unit, and 5 is flocculation coagulator, and 6
For the doser that flocculates, 7 is flocculation aid doser, and 8 is filter, and 9 is sludge condensation unit, and 10 is dtro reuse water device, 11
For evaporation concentration device, 12 is crystallization apparatus, and 13 is advanced oxidation device.
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only in order to explain
The utility model, is not used to limit the utility model.
Embodiment 1
At present, hydraulic fracturing job remains maximally effective well stimulation technology in oil-gas reservoir recovery process, is each oil field
Commonly used.With the continuous expansion of oil exploitation scale, in the inverted discharged pressing crack liquid and production process that produce in fracturing process
Produce to adopt the water delivery water yield huge.Whole Sichuan Province only adopts water delivery annual production and is just about 300 × 103m3.
Taking certain wellblock of petrochina southwest as a example, wellblock pressure returns discharge opeing and gas water yield is as shown in Figure 2.
, pressure returns liquid and to adopt quality of water conveyance as shown in table 1 below taking block in Changning block of Sichuan province and river as a example.
Table 1 Changning block oil gas field wellblock fracturing outlet liquid water quality
As illustrated, the oil shale gas fracturing outlet liquid processing meanss of the present embodiment include pretreatment unit, flocculated
Filter unit, sludge condensation unit, water post-processing unit.
Wherein, pretreatment unit includes: delivery pump, blender, conveying fan, oil removal unit.Delivery pump, blender, every
Oily unit is sequentially connected, and conveying fan is connected with blender.During pretreatment unit work, water (pending returns discharge opeing) is defeated
In the presence of sending pump, it is admitted in blender, by adding the ph value of liquid in the adjusting mixers such as degreaser；At blended device
After reason, the gas such as hydrogen sulfide in water is discharged by conveying fan or is collected, and mixed liquid phase material is again through oil removal unit
Remove the petroleum substance of wherein most.
Wherein, pending return discharge opeing (i.e. water) in the presence of delivery pump, be admitted in blender, removed by adding
The ph value of liquid in the adjusting mixers such as finish, and the gases such as the hydrogen sulfide in water are removed, remove the stone in water
Oily substance, the ph value section meeting optimal zata current potential selects, thus creating optimal conditions for follow-up flocculation.Preferably,
In the present embodiment, blender adopts pipe-line mixer, and delivery pump adopts mechanical membrane pump, and conveying fan adopts axial flow blower.
Giving zata current potential flocculation sediment in Fig. 3 affects schematic diagram with ph.In this enforcement, pretreatment unit major design
Parameter is as follows: velocity gradient=400～600s-1, 600～800s-1, 800～1000s-1；Mixing speed=400～1000s-1.
Pretreatment unit can interval or continuous operation in 24 hours.
Flocculation filtration unit includes: flocculation coagulator, flocculation doser, flocculation aid doser, agitator, filter, every
Oily unit is connected with flocculation coagulator, and flocculation coagulator is connected with filter, flocculation doser, flocculation aid doser, filter
It is connected with flocculation coagulator respectively, agitator can be stirred to the material in flocculation coagulator.Through the liquid phase after oil removal unit
Material enters in flocculation coagulator, and flocculation doser, flocculation aid doser add flocculant in flocculation coagulator respectively and help
Solidifying agent, agitator carries out high-speed stirred, promotes the flocculation sediment of material, by flocculant, flocculation aid (as inorganic oxidizer h2o2、
kmno4Deng), remove cod, hardness and the impurity of wherein most.Flocculation filtration unit main design parameters are as follows: coagulation section is stopped
Stay time hrt=30-60s, flocculate section time of staying hrt >=15min；, flocculate perforated wall flow velocity v ＜ 0.10m/s；, settling zone
Upflow velocity is v=3.0-4.0mm/s；, sedimentation time hrt >=30min；, filter operating pressure p=0.25mpa.Fig. 4 gives
Certain adopts sedimentation time of flocculation filtration unit of the present embodiment and turbidity comparison diagram to have gone out certain wellblock, and Fig. 5 gives certain well
The pressure of certain flocculation filtration unit using the present embodiment of area returns liquid sedimentation time and turbidity, total iron content comparison diagram.This enforcement
In example, flocculation filtration unit can interval or continuous operation in 24 hours.
After flocculation sediment, the material in flocculation coagulator is filtered process, and the water energy after filtration enough reaches back
Note standard, can also pass through water post-processing unit, carries out after-treatment.
Water post-processing unit includes: the dtro reuse water device even of the aqueous phase after filtering with filter, evaporation concentration device,
Crystallization apparatus, advanced oxidation device, dtro reuse water device, evaporation concentration device, crystallization apparatus are sequentially connected, and advanced oxidation device divides
It is not connected with dtro reuse water device, evaporation concentration device.The main design parameters of flocculation filtration unit are as follows: ro fluid passage
2.5mm, ro Reynolds (Reynold's) criterion ＞ 2500, ro pressure loss p≤0.1 0.2bar/m2, ro water inlet tds≤100,000mg/l, water
90kj/kg DEG C of specific heat at constant pressure, 3.4kj/kg DEG C of concentrate specific heat at constant pressure, 4.19kj/kg DEG C of distilled water specific heat at constant pressure, indirect steam
Temperature t=95 ± 2 DEG C gas phase, 103 ± 2 DEG C of liquid phases of feed temperature, heat loss 3.0%, evaporator type forced circulation, circulation is cold
But coolant-temperature gage t≤32 DEG C, recirculated cooling water pressure p >=0.3mpa.In water post-processing unit, carry out hydromining and carry out thing through membranous system
Reason separates, and concentrated water enters evaporation concentration device and processed, clear water directly discharge or reuse on the spot.Evaporation concentration device produces
Concentrated water to crystallization apparatus crystallization, dispose by outward transport, and condensate liquid, after heat exchange, directly discharges or reuse on the spot.Wherein, evaporation is dense
Compression apparatus can be compact evaporation unit, and highly controllable system is within 2.5m.
Sludge condensation unit with flocculation coagulator be connected, flocculate coagulator in solids through sludge condensation unit at
Reason, is transported out outside the mud after process.The main design parameters of sludge condensation unit are as follows: mud screw pump operating pressure≤
0.2mpa, moisture percentage in sewage sludge≤85% after concentration；Sludge condensation unit can adopt intermittent duty.
Preferably, in the present embodiment, mud screw pump that sludge condensation unit includes being connected with flocculation coagulator, fold spiral shell
Dewaterer, folded spiral shell dewaterer is connected with mud screw pump；By mud screw pump, fold cooperating of spiral shell dewaterer, Neng Goushi
The rapid concentration of existing mud is processed, and has preferable effect.
The present embodiment, according to the difference of water quality, can be selected for different units and processed.Carried out using the device that this is implemented
When fracturing outlet liquid is processed, when water inlet (i.e. fracturing outlet liquid) not H 2 S-containing gas and oil, and draining does not adopt earth's surface to arrange
Put, can only start flocculation filtration unit, sludge condensation unit, water inlet is directly entered in flocculation coagulator and is processed, filter
The mud producing is processed through sludge condensation unit, and the draining that filter produces is collected.When water inlet, (i.e. pressure break is returned
Discharge opeing) not H 2 S-containing gas and oil, and draining adopts surface discharge, then start flocculation filtration unit, sludge condensation unit,
Water post-processing unit, water inlet is directly entered in flocculation coagulator and is processed, and the mud that filter produces is through sludge condensation unit
Processed, the draining that filter produces is processed through water post-processing unit.When water inlet H 2 S-containing gas and oil, and arrange
When water does not select surface discharge, then start pretreatment unit, flocculation filtration unit, sludge condensation unit, water inlet initially enters pre-
Processed in processing unit, the mud that filter produces is processed through sludge condensation unit, the draining that filter produces is entered
Row is collected.
When water inlet H 2 S-containing gas and oil, and draining adopts surface discharge, then start pretreatment unit, flocculation filtration
Unit, sludge condensation unit, water post-processing unit, water inlet initially enters in pretreatment unit and is processed, and filter produces
Mud is processed through sludge condensation unit, after the draining that filter produces is processed through water post-processing unit, you can directly
Discharge or re-injection.
Through practical application, be can effectively solve the problem that at the fracturing outlet liquid pollution of different pollutant components using the utility model
Reason problem, and respective handling can be carried out, processing cost is low, process according to fracturing outlet liquid contaminant component and the difference requiring
Effect is good, low cost, can effectively save cost, environmental protection, there is higher using value and preferable application effect, value
Obtain large-scale promotion and application.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all this
Any modification, equivalent and improvement made within the spirit of utility model and principle etc., should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of oil shale gas fracturing outlet liquid processing meanss are it is characterised in that include flocculation filtration unit, sludge condensation list
Unit；
Described flocculation filtration unit includes: flocculation coagulator, is connected with filter, for flocculating to pending discharge opeing of returning
Agent-feeding treatment；Flocculation doser, for adding flocculant in flocculation coagulator；Flocculation aid doser, for flocculation coagulation
Flocculant aid is added in device；Agitator, for being stirred to the material in flocculation coagulator；Filter, for mixed to flocculation
Material after condenser is processed carries out filtration treatment；
The solids that described sludge condensation unit is connected with flocculation coagulator and sludge condensation unit can produce to flocculation coagulator
Carry out concentration.
2. according to claim 1 oil shale gas fracturing outlet liquid processing meanss it is characterised in that described sludge condensation list
Mud screw pump that unit includes being connected with flocculation coagulator, fold spiral shell dewaterer, described folded spiral shell dewaterer is connected with mud screw pump.
3. according to claim 1 oil shale gas fracturing outlet liquid processing meanss it is characterised in that also to include pretreatment single
Unit, described pretreatment unit includes:
Delivery pump, is connected with blender, for sending into pending discharge opeing of returning in blender；
Blender, is connected with oil removal unit, for being mutually mixed acid-base modifier with pending discharge opeing of returning；
Conveying fan, is connected with blender, and the waste gas for returning in discharge opeing is discharged；
Oil removal unit, is connected with flocculation filtration unit, returns petroleum substance in discharge opeing and by the row of returning after oil removal for separating
Liquid is sent in flocculation filtration unit.
4. according to claim 3 oil shale gas fracturing outlet liquid processing meanss it is characterised in that described blender be pipe
Road blender.
5. according to claim 3 oil shale gas fracturing outlet liquid processing meanss it is characterised in that described delivery pump be machine
Tool formula membrane pump.
6. according to claim 3 oil shale gas fracturing outlet liquid processing meanss it is characterised in that described conveying fan is
Axial flow blower.
7. according to any one of claim 1 ~ 6 oil shale gas fracturing outlet liquid processing meanss it is characterised in that also including
The water post-processing unit being processed for the water after filter is filtered.
8. according to claim 7 oil shale gas fracturing outlet liquid processing meanss it is characterised in that the post processing of described water is single
Unit includes: the dtro reuse water device of aqueous phase company after filtering with filter, evaporation concentration device, crystallization apparatus, advanced oxidation
Device, described dtro reuse water device, evaporation concentration device, crystallization apparatus are sequentially connected, described advanced oxidation device respectively with dtro
Reuse water device, evaporation concentration device are connected.
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| CN201620774895.9U CN205892970U (en) | 2016-07-22 | 2016-07-22 | Oil shale atmospheric pressure splits and returns flowing back processing apparatus |
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| CN112441701A (en) * | 2020-11-12 | 2021-03-05 | 刘百仓 | Efficient treatment, recycling and zero emission method and system for shale gas flowback liquid |
| CN112811686A (en) * | 2020-12-07 | 2021-05-18 | 德阳一铭科技发展有限公司 | Natural gas exploitation wastewater treatment process |
| CN113830956A (en) * | 2021-10-22 | 2021-12-24 | 中石化石油工程技术服务有限公司 | Shale gas fracturing flowback fluid and advanced treatment process of produced water |
| CN118307165A (en) * | 2024-06-07 | 2024-07-09 | 广州市迈源科技有限公司 | Evaporation treatment device and control system for alcohol-based fracturing flowback fluid |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482759A (en) * | 2019-08-28 | 2019-11-22 | 宜兴国际环保城科技发展有限公司 | A kind of comprehensive waste liquid multiplexed combination recovery processing technique of oilfield operation |
| CN112441701A (en) * | 2020-11-12 | 2021-03-05 | 刘百仓 | Efficient treatment, recycling and zero emission method and system for shale gas flowback liquid |
| CN112811686A (en) * | 2020-12-07 | 2021-05-18 | 德阳一铭科技发展有限公司 | Natural gas exploitation wastewater treatment process |
| CN113830956A (en) * | 2021-10-22 | 2021-12-24 | 中石化石油工程技术服务有限公司 | Shale gas fracturing flowback fluid and advanced treatment process of produced water |
| CN118307165A (en) * | 2024-06-07 | 2024-07-09 | 广州市迈源科技有限公司 | Evaporation treatment device and control system for alcohol-based fracturing flowback fluid |
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