CN204151175U - A kind of fracturing outlet liquid modularization integrated treating device - Google Patents
A kind of fracturing outlet liquid modularization integrated treating device Download PDFInfo
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- CN204151175U CN204151175U CN201420635794.4U CN201420635794U CN204151175U CN 204151175 U CN204151175 U CN 204151175U CN 201420635794 U CN201420635794 U CN 201420635794U CN 204151175 U CN204151175 U CN 204151175U
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Abstract
The utility model provides a kind of fracturing outlet liquid modularization integrated treating device, and it comprises: triphase separator, gas phase recovery and processing system, liquid phase recovery and processing system, solid phase recovery and processing system, wherein, in gas phase recovery and processing system, recovery burn processing is carried out to gas phase, in liquid phase recovery and processing system, oil removal process is carried out to liquid phase, catalytic oxidation treatment, after membrane filtration, recycle again after carrying out after tested again reclaiming or circulate, solid phase recovery and processing system carries out recovery transport processing to solid phase, the utility model achieves directly processing on the spot of fracturing outlet liquid, final product can directly burn, discharge or again utilize, both transport was saved, processing costs, turn improve the utilization ratio of water resources, advocating the present of whole people's environmental protection, present treatment technique has larger application prospect at oil field compression fracture scene.
Description
Technical field
The utility model relates to Oil Field fracturing outlet liquid process equipment technology field, and specifically, the utility model is in particular to a kind of fracturing outlet liquid modularization integrated treating device.
Background technology
Pressing crack construction operation is as Main Means that is conventional and unconventional petroleum resources volume increase, its fracturing fluid system is very complicated, and the number of chemical composition such as contained viscosifying agent, linking agent, as polymkeric substance, organism, inorganics etc., of a great variety, complicated component, to such an extent as to more than the pressure break produced at the end of pressing crack construction, fluid component is extremely complicated, it shows as: gas, liquid, oil, solid heterogeneous existence, liquid phase shows as high COD, high TDS, high suspended matter, and variation water quality is large; It is the oil field waste that a class intractability is large.
If arranged without any process by liquid more than pressure break, to surrounding enviroment, especially severe contamination will be caused to soil and surface drainage system outward.Along with China is to the attention of environment protection, fracturing outlet liquid is also very serious to the pollution that environment brings.Also be suspended with formation debris and a small amount of high/low density crude oil in the propping agent such as quartz sand, ceramsite sand, well in the fracturing outlet liquid directly got rid of via wellhead tree tree, this makes the process of fracturing outlet liquid more difficult.General fracturing outlet liquid has three kinds of processing modes, and one is be transported to joint station by outside well site, and with production water combination treatment, place air-dry rear landfill voluntarily, this method wastes time and energy, big for environment pollution.Two is that fracturing outlet liquid discharges after the various method process such as chemistry, physics, biology, and this kind method processing cost is high, equipment is immature, treatment scale is little, can not meet the requirement of modern massive hydraulic fracture operation.Three is fracturing outlet liquid process Posterior circle recyclings, and this kind of method adapts to now increasingly serious environmental requirement, but needs to be based upon on the quite ripe basis of fracturing outlet liquid treatment technology, requires more strict to treatment technology.
Fractured return drainage liquid recovery processing apparatus now used: if application number is the shale gas fracturing outlet liquid recycling and processing equipment of CN201320145527.4, application number is a kind of fracturing outlet liquid process retrieving arrangement of CN201320425803.2; The core of above-mentioned two kinds of devices is again utilized by non-fracturing outlet liquid up to standard, it can thus be appreciated that fracturing outlet liquid cannot thoroughly be cleaned out by it; For another example application number is that a kind of of CN201320009645.2 processes the device that oil-gas field fracturing returns discharge opeing, it only processes liquid, gas-liquid-solid three kinds of forms are had in fracturing outlet liquid, except liquid is to except environment, solid and gas equally also can to environments, in addition, in that patent, can only reach the process of liquid and meet effluent-quality standards, and need subsequent disposal.
By upper analysis, can learn that the fractured return drainage liquid recovery processing apparatus of prior art exists following characteristics and defect;
1, cannot realize, to the thorough process of fracturing outlet liquid, easily causing secondary pollution to environment.Have plenty of and non-water up to standard is utilized on the spot again, have plenty of and cannot process gas and solid.
2, when needs thoroughly process fracturing outlet liquid, need other equipment to have coordinated.The treatment unit of above-mentioned contrast all cannot realize separately the thorough process to fracturing outlet liquid, when with other equipment carry out with the use of time, easily there is leakage situation at middle convergence process.Each device with the use of time, also need to analyze in advance, waste time and energy in this case, too much wastes resource.
Utility model content
The purpose of this utility model is to provide a kind of fracturing outlet liquid modularization integrated treating device, with at least solve that prior art exists to problems such as fracturing outlet liquid process are not thorough, and solve divergence between cooperating equipment further secondary pollution problems caused to environment.
In order to solve the problem, the utility model provides a kind of fracturing outlet liquid modularization integrated treating device, and its technical scheme is as follows:
A kind of fracturing outlet liquid modularization integrated treating device, comprising: triphase separator; Be connected with fracturing outlet liquid jet pipe, for described fracturing outlet liquid is carried out three phase separation; Gas phase recovery and processing system, be connected with the gas phase relief outlet of described triphase separator, the gas for separating described triphase separator reclaims and burn processing; Liquid phase recovery and processing system, is connected with the liquid phase relief outlet of described triphase separator, and the liquid for separating described triphase separator carries out oil removal, catalyzed oxidation, membrane filtration process; With solid phase recovery and processing system, be connected with the solid phase relief outlet of described triphase separator, reclaim for the solid separated described triphase separator, store transport processing.
Preferably, in described fracturing outlet liquid modularization integrated treating device, described gas phase recovery and processing system comprises: gas phase recovery device, is connected with the gas phase relief outlet of described triphase separator, for reclaiming the gas that described triphase separator is separated; Gentle phase ignition device, is connected with the venting port of described gas phase recovery device, for the gas phase recovery device expellant gas that ignites.
Preferably, in described fracturing outlet liquid modularization integrated treating device, described gas phase recovery and processing system also comprises: gas filter, and described gas filter is arranged on described gas phase recovery device inlet mouth place, enters liquid in gas phase recovery device and solid for filtering.
Preferably, in described fracturing outlet liquid modularization integrated treating device, described liquid phase recovery and processing system comprises; Oil removal treatment unit, is connected with the liquid phase relief outlet of described triphase separator, for reclaiming liquid that described triphase separator separates and out separating of oil by liquid; Catalytic oxidizing equipment, is connected with the leakage fluid dram of described oil removal treatment unit, is oxidized to carbonic acid gas and water for oil removal treatment unit being carried the organic matter degradation in the liquid of coming; Membrane filter appts, is connected with the leakage fluid dram of described catalytic oxidizing equipment, and retained by the catalytic oxidizing equipment conveying macromole of coming in liquid, the small molecules in permission liquid enters in the hollow space in filtration unit and (discharges through discharge pipe line again); Water quality detecting device, is arranged on the discharge pipe line of described membrane filter appts, for detecting the discharge index of water; Judge whether described discharge index reaches emission standard thus; First three-way valve, water inlet port is connected with the water outlet of water quality detecting device; Apparatus for recovering up to standard, one end is connected with the first water outlet of described first three-way valve, is recycled by the fracturing outlet liquid after up to standard; With non-water circle device up to standard, one end is connected with the second water outlet of described first three-way valve, the other end is connected with the water-in of described oil removal treatment unit or catalytic oxidizing equipment, for non-water up to standard is transmitted back to oil removal treatment unit carry out oil removal after again process or non-water up to standard is transmitted back to catalytic oxidizing equipment oxidation after again process.
Preferably, in described fracturing outlet liquid modularization integrated treating device, described solid phase recovery and processing system comprises: the first solid phase retrieving arrangement, is connected with the solid phase relief outlet of described triphase separator, for reclaiming the solid that described triphase separator is separated; Storing conveyer with solid phase, being connected with described first solid phase retrieving arrangement, for storing the solid with the first solid phase retrieving arrangement described in collective conveyance.
Preferably, in described fracturing outlet liquid modularization integrated treating device, described solid phase recovery and processing system also comprises: second solid phase retrieving arrangement, the two ends of described second solid phase retrieving arrangement store conveyer with the solids outlet port of described oil removal treatment unit with solid phase respectively and are connected, for reclaiming oily throw out and the solid of described oil removal treatment unit.
Preferably, in described fracturing outlet liquid modularization integrated treating device, described oil removal treatment unit comprises oil trap; For holding the liquid after triphase separator is separated; Multiple upper spacer and multiple lower clapboard; Described upper spacer and the uniform staggered top and bottom being arranged on described oil trap respectively of described lower clapboard, and described lower clapboard is between adjacent described upper spacer; Described upper spacer left the mouth of a river in the bottom of oil trap, make water from upper spacer bottom cross in the mouth of a river by and oil is trapped in upper spacer; Described lower clapboard left the mouth of a river on the top of described oil trap, for supplying to pass through space for water extraction.Multistage oil trap can be partitioned into like this by the number of upper spacer, due to the difference of water oil density, return discharge opeing and can form layering in first step oil trap, oil reservoir floats on water layer surface, the cross mouth of a river filtration of water through upper spacer bottom in first step oil trap enters second stage oil trap, layering is carried out again in the oil trap of the second stage, the like, oil is separated in water.
Preferably, in described fracturing outlet liquid modularization integrated treating device, described catalytic oxidizing equipment comprises oxidation container, for holding the liquid after oil removal treatment unit oil removal process; Ozonizer, is arranged on described oxidation container top, is the liquid carrying confession ozone in oxidation container by its pneumatic tube; And ultraviolet lamp, being arranged on described oxidation container bottom, with ozone generation oxidative decomposition, is carbonic acid gas and water by the organic matter degradation in liquid.
Preferably, in described fracturing outlet liquid modularization integrated treating device, described liquid phase recovery and processing system also comprises: reaction gas discharge equipment, is connected with the vapor pipe of described catalytic oxidizing equipment upper end, for collecting, discharging the carbonic acid gas in catalytic oxidizing equipment.Drainage grid and hazardous gas component detection apparatus is provided with at the two ends of reaction gas discharge equipment; The one end being provided with drainage grid is positioned at catalytic oxidizing equipment, and the one end being provided with hazardous gas component detection apparatus is positioned at outside catalytic oxidizing equipment.Drainage grid can filter the moisture entering reaction gas discharge equipment, and hazardous gas component detection apparatus can detect in be vented body, whether hazardous gas composition exceeds standard, so that carry out protective treatment.
Preferably, in described fracturing outlet liquid modularization integrated treating device, described membrane filter appts comprises membrane cisterna, for holding the liquid after catalytic oxidizing equipment oxidation; With many group diaphragm pipelines, being uniformly placed in described membrane cisterna, for being trapped in outside diaphragm pipeline by the macromole in oxidated solution body, allowing the small molecules in oxidated solution body enter diaphragm pipeline and import water quality detecting device further.Preferably each is organized described diaphragm pipeline and comprises: mould bases; Inlay be arranged at mould bases two sides, with mould bases cross hollow space and the diaphragm that liquid is filtered; With filtered water delivery line, one end is corresponding with diaphragm pipeline respectively to be connected, and the other end is collected to the water-in of described water quality detecting device.
Analyze known, compared with prior art, first the utility model improves membrane filter appts, water quality detecting device, water treatment device up to standard, adapt therewith, bulk treatment process of the present utility model have employed the integrated processing mode of modularization, thus, the utility model can realize efficiently processing concentrating of fracturing outlet liquid, the comprehensive utilization of membrane filtration and catalyzed oxidation, achieve directly processing on the spot of fracturing outlet liquid, final product directly can burn, discharges or again utilize, and has both saved transport, processing costs, turn improves the utilization ratio of water resources.
Moreover, the utility model is provided with non-water circle device up to standard, for non-water circle device up to standard, water not up to standard can be detected to water quality detecting device need not first be reclaimed by carrier separately and carry out Subsequent secure process again, and direct by after water cycle not up to standard to membranization-oxidation-water quality detection until rear reprocessing up to standard.
The utility model compared with prior art, tool has the following advantages: because the utility model adopts membrane filtration and catalyzed oxidation and non-water cycle process up to standard, achieve the integrated process to fracturing outlet liquid of modularization, the treatment unit only needing the utility model to provide for fracturing outlet liquid just can realize thorough cleaning, prevents situation environment being caused to secondary pollution.Because the utility model have employed the integrated process of modularization, just can realize saving transport, processing costs to the process of fracturing outlet liquid under without the need to the cooperation of other devices.
Accompanying drawing explanation
Fig. 1 is the logical schematic of the utility model embodiment.
Fig. 2 is the logical schematic of the utility model preferred embodiment.
Fig. 3 is the structural representation of the utility model preferred embodiment.
Fig. 4 is the internal structure schematic diagram of the utility model membrane filter appts.
Fig. 5 is the structural representation of the utility model diaphragm.
Fig. 6 is the interior flow direction schematic diagram of the utility model oil removal treatment unit.
Fig. 7 is the relative position figure of lower clapboard on the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As shown in Figure 1, the preferred embodiment of fracturing outlet liquid integrated treating device of the present utility model mainly comprises triphase separator 1, gas phase recovery and processing system A, liquid phase recovery and processing system B and solid phase recovery and processing system C.
The high pressure fracture of well head ejection returns the fluid inlet of discharge opeing through withstand voltage manifold and reducing valve, returned by high pressure fracture after discharge opeing becomes normal pressure fracturing outlet liquid and enter triphase separator 1, described triphase separator 1 is for carrying out the three phase separation of gas phase, liquid phase and solid phase by described fracturing outlet liquid; Gas phase recovery and processing system A, is connected with the gas phase relief outlet of described triphase separator 1, reclaims and burn processing for the gas separated described triphase separator 1; Liquid phase recovery and processing system B, be connected with the liquid phase relief outlet of described triphase separator 1, liquid for separating described triphase separator 1 first carries out oil removal, catalyzed oxidation, membrane filtration process, again after water quality detection, up to standard, discharge, non-up to standard, be circulated to oil removal process or catalytic oxidation treatment, until rear discharge up to standard; Solid phase recovery and processing system C, is connected with the solid phase relief outlet of described triphase separator 1, reclaims for the solid separated described triphase separator 1, stores transport.
As shown in Figure 3, described gas phase recovery and processing system A comprises: gas phase recovery device 2, is connected with the gas phase relief outlet of described triphase separator 1, for reclaiming the gas that described triphase separator 1 is separated; Gentle phase ignition device 21, is connected with the venting port of described gas phase recovery device 2, for gas phase recovery device 2 expellant gas that ignites.
As shown in Figure 3, described gas phase recovery and processing system A also comprises gas filter 22, and described gas filter 22 is arranged on the inlet mouth place of described gas phase recovery device 2, enters liquid in gas phase recovery device 2 and solid for filtering.
As shown in Figure 2 and Figure 3, described liquid phase recovery and processing system B comprises; Oil removal treatment unit 4, is connected with the liquid phase relief outlet of described triphase separator 1, for reclaiming liquid that described triphase separator 1 separates and out separating of oil by liquid; Catalytic oxidizing equipment 6, is connected with the leakage fluid dram of described oil removal treatment unit 4, for carrying the liquid oxygen of coming to change into carbonic acid gas and water oil removal treatment unit 4; Membrane filter appts 7, is connected with the leakage fluid dram of described catalytic oxidizing equipment 6, and carry the macromole water of coming in liquid to retain catalytic oxidizing equipment 6, the micromolecular water in liquid filters; Water quality detecting device 8, is arranged on the discharge pipe line of described membrane filter appts 7, for detecting the discharge index of water; Judge whether described discharge index reaches emission standard thus; First three-way valve, water inlet port is connected with the water outlet of water quality detecting device 8; Apparatus for recovering 9 up to standard, one end is connected with the first water outlet of described first three-way valve, is recycled by the fracturing outlet liquid after up to standard; With non-water circle device 10 up to standard, one end is connected with the second water outlet of described first three-way valve, the other end is connected with the water-in of described oil removal treatment unit 4 or catalytic oxidizing equipment 6, for non-water up to standard is transmitted back to oil removal treatment unit 4 carry out oil removal after process or non-water up to standard is transmitted back to after catalytic oxidizing equipment 6 is oxidized again processes again.
As shown in Figure 3, described solid phase recovery and processing system C comprises: the first solid phase retrieving arrangement 3, is connected with the solid phase relief outlet of described triphase separator 1, for reclaiming the solid that described triphase separator 1 is separated; Storing conveyer 31 with solid phase, being connected with described first solid phase retrieving arrangement 3, for storing the solid with the first solid phase retrieving arrangement 3 described in collective conveyance.
As shown in Figure 3, described solid phase recovery and processing system C also comprises: second solid phase retrieving arrangement 5, the two ends of described second solid phase retrieving arrangement 5 store conveyer 31 with the solids outlet port of described oil removal treatment unit 4 with solid phase respectively and are connected, for reclaiming oily throw out and the solid of described oil removal treatment unit 4.
In order to the oil in fracturing outlet liquid effectively can being isolated, make the water oil ratio of subsequent disposal up to standard, the oil removal treatment unit 4 that the present embodiment adopts as shown in Figure 6, Figure 7, comprises oil trap; For holding the liquid after triphase separator is separated; Multiple upper spacer 41 and multiple lower clapboard 42, many one of the quantity of the number ratio lower clapboard 42 of illustrated upper spacer 41 (determine according to practical situation by the quantity of upper spacer i.e. the progression of oil trap, lower clapboard requires between the adjacent upper spacer, guides water flow to play); Described upper spacer 41 and described lower clapboard 42 is uniform is staggered installation of in described oil trap (if when oil trap is circular cylinder, then upper spacer 41, lower clapboard 42 are arc, the wherein arc-shaped side of upper spacer 41, lower clapboard 42 and oil removal pool wall close proximity, only the arc-shaped side of upper spacer 41 is upper, string limit 411 under; The arc-shaped side of lower clapboard 42 under, string limit 421 is upper (also namely upper spacer is fixed on the top of oil trap, and lower clapboard is fixed on the bottom of oil trap)); Described upper spacer 41 left the mouth of a river in the bottom of oil trap, make water from upper spacer 41 bottom cross in the mouth of a river by and oil is trapped in upper spacer 41; Described lower clapboard 42 left the mouth of a river on the top of described oil trap, for supplying to pass through space for water extraction.Multistage oil trap can be partitioned into like this by the number of the upper spacer 41 and lower clapboard 42 that are arranged on top and bottom alternately.Due to the difference of water oil density, return discharge opeing and can form layering in first step oil trap, oil reservoir floats on water layer surface, the cross mouth of a river filtration of water through upper spacer 41 bottom in first step oil trap enters second stage oil trap, layering is carried out again in the oil trap of the second stage, the like, oil is separated in water.The progression of described multistage oil removal treating processes, can determine according to the water oil ratio in fracturing outlet liquid, oil-contg will repeatedly carry out after oil treatment greatly, the water oil ratio of finally carrying out in the aqueous phase of described membrane filtration processes should be less than effluent standard value, the water oil ratio that oil removal treatment unit reaches generally will decide according to the diaphragm performance of the membrane filter appts 7 used below, such as diaphragm poor performance some time just need oil-contg in the liquid after the process of oil removal treatment unit lower, as by the mode increasing oil removal rank.
Oil removal effect is played in order to utilize dividing plate better, the string limit 411 of preferred upper spacer 41 apart from the height bottom oil trap lower than the string limit 421 of lower clapboard 42 apart from the height bottom oil trap, namely go up lower clapboard and in height have overlap (being also the distance of the top dotted line in circle shown in 7 to following solid line), and preferably the two overlapping height (distance namely between string limit 411,421) for upper spacer height (bend high h) 1/3 ~ 2/3, preferred stack height is at about 1/2h further.In addition, the height h of preferred upper spacer is 2/3 ~ 3/4 of oil trap height H.
For Fig. 6, oil trap internal partition is divided into upper spacer 41 and lower clapboard 42, upper spacer 41 is fixed on the top of oil trap, lower clapboard 42 is fixed on the bottom of oil trap, wherein upper spacer 41 3 pieces is uniformly distributed in oil trap top, lower clapboard 42 two pieces is uniformly distributed in the bottom of oil trap, two pieces of lower clapboards 42 lay respectively at the position between three pieces of upper spacers 41, oil trap is divided into three parts by upper lower clapboard, be called that three grades of oil traps (determined by the quantity of upper spacer by the progression of oil trap, be first step oil removal district between the oil separating plate of the leftmost side and pool wall in Fig. 6), return after discharge opeing enters oil trap, be introduced into first step oil trap, due to the difference of water oil density, return discharge opeing layering, oil reservoir floats on water layer surface, water enters secondary oil trap via the breach below upper spacer, again carry out oily water separation, water layer enters three grades of oil traps via the breach of secondary oil trap upper spacer bottom, the like, discharge opeing of returning after three times water is separating of oil is discharged through three grades of oil trap upper spacer down gaps.
In order to organism in liquid be degraded in catalytic oxidation process, prevent organism from concentrating or being transferred in other phases, described catalytic oxidizing equipment 6 as shown in Figure 3, comprises oxidation container 60, for holding the liquid after oil removal treatment unit oil removal process; Ozonizer 61, is arranged on described oxidation container 60 top, is the liquid carrying confession ozone in oxidation container 60 by its pneumatic tube 63; With ultraviolet lamp 62, be arranged on described oxidation container 60 bottom, with ozone generation free radical reaction, and then free radical and the organism generation oxidative decomposition returned in discharge opeing, be carbonic acid gas and water by the organic matter degradation of liquid.Described catalytic oxidation process is preferably advanced oxidation processes, it is specially: under the ultraviolet effect that the ozone provided at ozonizer 61 and ultraviolet lamp 62 are launched, produce the hydroxyl radical free radical OH as oxygenant, described hydroxyl radical free radical OH reacts as primary oxidizers and organism, the organic free radical generated in reaction can continue the chain reaction participating in OH, or after generating organic peroxy free radical, there is oxidative decomposition further, until be degraded to final product CO
2and H
2o, thus reach the organic object of oxygenolysis.
Compared with the water treatment method that other are traditional, advanced oxidation processes has following characteristics: produce a large amount of very active hydroxyl radical free radical OH, its oxidation capacity is only second to fluorine, and oxidising process is rapid; Hydroxyl radical free radical differs very little from different organic reaction rate constant, without select with the pollutant reaction in waste water, when there is multiple pollutant in water, there will not be a kind of mass degradation and situation that in addition material is substantially constant; Oxidation final product composition is simple, can not produce secondary pollution.
Advanced oxidation processes has multiple implementation, and typical homogeneous phase advanced oxidation processes has O
3/ UV, O
3/ H
2o
2, UV/H
2o
2, H
2o
2/ Fe
2+ (Fenton reagent) etc., wherein O
3/ UV oxidation technology reaction conditions is gentle, has again that speed of reaction is fast, efficiency advantages of higher compared with simple ozone oxidation, and the organism of difficult degradation when can be oxidized ozone independent role.Under ultraviolet irradiation, there is following free radical reaction in ozone:
O
3+h
U→O+O
2(1)
O
3+h
U+H
2O→H
2O
2+O
2(2)
O+H
2O→·OH (3)
H
2O
2+h
U→·OH (4)
Hydroxyl radical free radical OH with return organism generation indifference in discharge opeing and react, oxidising process rapidly, thorough, lay a good foundation for returning next step process of discharge opeing.
The difference of advanced oxidation processes and other sewage treatment process such as absorption, ion-exchange is that the organism in water has been degraded, instead of concentrate or transfer in other phases, can not secondary liquid waste be produced, not need the cost additionally dropping into disposal costs or material regeneration.
In order to prevent non-oozing out of water up to standard as far as possible, secondary pollution is caused to environment, described liquid phase recovery and processing system also comprises: reaction gas discharge equipment, the vapor pipe 64 installed with described catalytic oxidizing equipment 6 upper end is connected, for collecting, discharging the carbonic acid gas in catalytic oxidizing equipment 6.Drainage grid and hazardous gas component detection apparatus is provided with at the two ends of reaction gas discharge equipment; The one end being provided with drainage grid is positioned at catalytic oxidizing equipment 6, and the one end being provided with hazardous gas component detection apparatus is positioned at outside catalytic oxidizing equipment 6 pond.Drainage grid can filter the moisture entering reaction gas discharge equipment, and hazardous gas component detection apparatus can detect in be vented body, whether hazardous gas composition exceeds standard, so that carry out protective treatment.
In order to be retained by the macromole of aqueous phase as far as possible, so that subsequent detection process, the membrane filter appts 7 that the present embodiment adopts as shown in Figure 4, Figure 5, comprises membrane cisterna, for holding the liquid after catalytic oxidizing equipment oxidation; Many groups diaphragm pipeline 71, uniformly be placed on (being fixed in membrane cisterna by diaphragm draw-in groove) in described membrane cisterna, for the macromole of oxidated solution body is trapped in outside diaphragm pipeline 71, allows the small molecules of oxidated solution body to enter in diaphragm pipeline 71 stepping of going forward side by side and enter in following filtered water delivery line 72.Each group diaphragm pipeline 71 comprises: mould bases 73, the diaphragm (ultra-filtration membrane) 74 being arranged on (being precisely embedded in) mould bases 73 two sides and the filtered water delivery line 72 be arranged on by the through hole that mould bases 73 is provided with on mould bases 73.The diaphragm and the mould bases 73 that are positioned at mould bases 73 both sides form a hollow container, return discharge opeing and filter in hollow container via the small molecules of diaphragm by oxidated solution body, then derived by filtered water delivery line 72.One end of filtered water delivery line 72 is corresponding with hollow container to be connected, and the other end is collected to the water-in of described water quality detecting device 8.
Also comprise the second three-way valve, the water-in of described second three-way valve is connected with the water outlet of described non-water circle device 10 up to standard, first water outlet of described second three-way valve is connected with the water-in of described oil removal treatment unit 4, second water outlet of described second three-way valve is connected with the water-in of described catalytic oxidizing equipment 6, when:
When non-oil-in-water water ratio up to standard does not meet emission standard, open the first water outlet, allow non-water cycle up to standard to oil removal treatment unit 4, then through oil removal process, catalytic oxidation treatment, membrane filtration process, discharge again until water is up to standard;
When water oil ratio in non-water up to standard meets emission standard, open the second water outlet, allow non-water cycle up to standard to catalytic oxidizing equipment 6, then through catalytic oxidation treatment, membrane filtration process, until water up to standard after discharge again.If discharged by water (comprising water up to standard and non-water up to standard) through one program in the treating processes of fracturing outlet liquid, water be in non-up to standard time, secondary pollution can be caused to environment, if reclaim non-water up to standard, then also need to prepare container again by non-water-band up to standard back into row relax, the job costs of such increase, and reduce working efficiency; This preferred embodiment solves non-water up to standard by the mode that non-water up to standard is carried out again circular treatment and causes secondary pollution and ineffective problem to environment.
As shown in Figure 3, the high pressure fracture of well head ejection returns the fluid inlet of discharge opeing through withstand voltage manifold and reducing valve, is returned by high pressure fracture after discharge opeing becomes normal pressure fracturing outlet liquid and enters triphase separator 1, realize gas phase in triphase separator 1, liquid phase is separated with solid phase; Deliver to gas phase recovery device 2 after gas phase after separation being filtered by gas filter 22 by the gas phase relief outlet of triphase separator 1 upper end to be burnt by gas phase ignition device 21 again;
Liquid phase after being separated is delivered to oil removal treatment unit 4 by the liquid phase relief outlet of triphase separator 1, in oil removal treatment unit 4, by placing the mode of dividing plate up and down, according to the density different employing densimetry of water with oil, oil is separated out, then the liquid after oil removing is delivered in catalytic oxidizing equipment 6 and be oxidized, in described catalytic oxidizing equipment 6, ozone is produced by ozonizer 61, the ultraviolet that ozone and ultraviolet lamp 62 are launched reacts, and is carbonic acid gas and water by the organic matter degradation in liquid; Then water is delivered to membrane filter appts 7, macromole in water retains by many groups diaphragm pipeline 71 of membrane filter appts 7, the small molecules in water is allowed to filter, and micromolecular water is delivered to detection in water quality detecting device 8 by many group filtered water delivery lines 72, when water is up to standard, open the first water outlet of the first three-way valve, water is delivered in apparatus for recovering 9 up to standard, now, need to process water up to standard according to scene, can reinjection into reservoir, also can recycling, because next step treating processes is different, so not identical to the requirement of water quality reaching standard yet; Such as: if when water up to standard is introduced the less lake, river of dilution capacity as purposes such as townscape water and general reuse waters, then perform according to the A standard of GB18918-2002 first discharge standard; If water up to standard to be entered GB3838 surface water III class function waters (the drinking water source protective belt of delimitation and Swimming area except), GB3097 seawater two class function waters He Hu, storehouse etc. close or semiclosed waters time, then perform according to the B standard of GB18918-2002 first discharge standard; If water up to standard to be entered GB3838 surface water IV, V class function waters or GB3097 seawater three, four class function marine site, then perform according to GB18918-2002 secondary discharge standard.Described different water quality reaching standard requirement, all realizes by described fracturing outlet liquid modularization integrated treatment process;
When water is not up to standard, open the second water outlet of the first three-way valve, water is delivered to non-water circle device up to standard 10, non-water up to standard is transmitted back to reprocessing in oil removal treatment unit 4 or catalytic oxidizing equipment 5.
Solid phase after separation is delivered to the first solid phase retrieving arrangement 3 by the solid phase relief outlet of triphase separator 1 lower end reclaim, oily throw out in described oil removal treatment unit 4 and solid are reclaimed by second solid phase retrieving arrangement 5, when needs carry out storing or transporting, open the first residual sea water pump 32 of the first solid phase retrieving arrangement 3 and the second residual sea water pump 51 of second solid phase retrieving arrangement 5, solid pollutant is delivered to solid phase and stores conveyer 31 and carry out storing or be transported to process place and process.
From upper description, this preferred embodiment, by membranization and the integrated use of oxidation, makes this preferred embodiment can rapidly and efficiently realize the integrated process of the modularization of fracturing outlet liquid.
Membrane filtration processes fully and completely can remove the macromole that diameter is greater than fenestra, but being used alone membrane filter method can cause again the burden of film excessive, easy blocking, work-ing life reduces, and the treatment capacity of the quantity of dirty water pollutant on membrane filter method has impact, pollutent too much can cause the processing power of film to decline.Therefore, before advanced oxidation processes is placed in membrane filtration processes, organism in water decomposes by advanced oxidation processes, alleviate the pressure of membrane filter appts, reduce the possibility of diaphragm blocking in membrane filter appts, extend the cleaning interval of diaphragm, improve the work-ing life of diaphragm, and lower pollutent density makes membrane filtration processes to carry out smoothly.
The use that combined with membrane filter method by advanced oxidation processes can improve processing efficiency, reduces equipment volume, improves service life of equipment, better for the process of fracturing outlet liquid provides service.
The utility model can realize efficiently processing concentrating of fracturing outlet liquid, catalyzed oxidation membrane filtration and comprehensive utilization, achieve directly processing on the spot of fracturing outlet liquid, final product directly can burn, discharges or again utilize, both transport, processing costs had been saved, turn improve the utilization ratio of water resources, advocating the present of whole people's environmental protection, present treatment technique has larger application prospect at oil field compression fracture scene.
To sum up, the utility model can realize following beneficial effect:
One, modularization centralized process can be carried out to fracturing outlet liquid.
Two, thorough to fracturing outlet liquid process, protect environment.
Three, improve the repeating utilization factor of water resources.
As known by the technical knowledge, the utility model can be realized by other the embodiment not departing from its spirit or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Allly all to be included in the utility model within the scope of the utility model or being equal to the change in scope of the present utility model.
Claims (10)
1. a fracturing outlet liquid modularization integrated treating device, is characterized in that, comprising:
Triphase separator; Be connected with fracturing outlet liquid jet pipe, for described fracturing outlet liquid is carried out three phase separation;
Gas phase recovery and processing system, be connected with the gas phase relief outlet of described triphase separator, the gas for separating described triphase separator reclaims and burn processing;
Liquid phase recovery and processing system, is connected with the liquid phase relief outlet of described triphase separator, and the liquid for separating described triphase separator carries out oil removal, catalyzed oxidation, membrane filtration process; With
Solid phase recovery and processing system, is connected with the solid phase relief outlet of described triphase separator, reclaims for the solid separated described triphase separator, store transport processing.
2. fracturing outlet liquid modularization integrated treating device according to claim 1, is characterized in that, described gas phase recovery and processing system comprises:
Gas phase recovery device, is connected with the gas phase relief outlet of described triphase separator, for reclaiming the gas that described triphase separator is separated; With
Gas phase ignition device, is connected with the venting port of described gas phase recovery device, for the gas phase recovery device expellant gas that ignites.
3. fracturing outlet liquid modularization integrated treating device according to claim 2, is characterized in that, described gas phase recovery and processing system also comprises:
Gas filter, described gas filter is arranged on described gas phase recovery device inlet mouth place, enters liquid in gas phase recovery device and solid for filtering.
4. fracturing outlet liquid modularization integrated treating device according to claim 1, is characterized in that, described liquid phase recovery and processing system comprises;
Oil removal treatment unit, is connected with the liquid phase relief outlet of described triphase separator, for reclaiming liquid that described triphase separator separates and out separating of oil by liquid;
Catalytic oxidizing equipment, is connected with the leakage fluid dram of described oil removal treatment unit, becomes carbonic acid gas and water for oil removal treatment unit being carried the organic matter degradation in the liquid of coming;
Membrane filter appts, is connected with the leakage fluid dram of described catalytic oxidizing equipment, and retained by the catalytic oxidizing equipment conveying macromole of coming in liquid, remaining liq filters in discharge pipe line;
Water quality detecting device, is arranged on the discharge pipe line of described membrane filter appts, for detecting the discharge index of water; Judge whether described discharge index reaches emission standard thus;
First three-way valve, water inlet port is connected with the water outlet of water quality detecting device;
Apparatus for recovering up to standard, one end is connected with the first water outlet of described first three-way valve, is recycled by the fracturing outlet liquid after up to standard; With
Non-water circle device up to standard, one end is connected with the second water outlet of described first three-way valve, the other end is connected with the water-in of described oil removal treatment unit or catalytic oxidizing equipment, for non-water up to standard is transmitted back to oil removal treatment unit carry out oil removal after again process or non-water up to standard is transmitted back to catalytic oxidizing equipment oxidation after again process.
5. fracturing outlet liquid modularization integrated treating device according to claim 1, is characterized in that, described solid phase recovery and processing system comprises:
First solid phase retrieving arrangement, is connected with the solid phase relief outlet of described triphase separator, for reclaiming the solid that described triphase separator is separated; With
Solid phase stores conveyer, is connected, for storing the solid with the first solid phase retrieving arrangement described in collective conveyance with described first solid phase retrieving arrangement.
6. fracturing outlet liquid modularization integrated treating device according to claim 5, is characterized in that, described solid phase recovery and processing system also comprises:
Second solid phase retrieving arrangement, the two ends of described second solid phase retrieving arrangement store conveyer with the solids outlet port of described oil removal treatment unit with solid phase respectively and are connected, for reclaiming oily throw out and the solid of described oil removal treatment unit.
7. fracturing outlet liquid modularization integrated treating device according to claim 4, is characterized in that, described oil removal treatment unit comprises:
Oil trap, for holding the liquid after triphase separator is separated;
Multiple upper spacer and multiple lower clapboard; Described upper spacer and the uniform staggered top and bottom being arranged on described oil trap respectively of described lower clapboard, and described lower clapboard is between adjacent described upper spacer; Described upper spacer left the mouth of a river in the bottom of oil trap, make water from upper spacer bottom cross in the mouth of a river by and oil is trapped in upper spacer; Described lower clapboard left the mouth of a river on the top of described oil trap, for supplying to pass through space for water extraction.
8. fracturing outlet liquid modularization integrated treating device according to claim 4, it is characterized in that, described catalytic oxidizing equipment comprises:
Oxidation container, for holding the liquid after oil removal treatment unit oil removal process;
Ozonizer, is arranged on described oxidation container top, is the liquid carrying confession ozone in oxidation container by its pneumatic tube; With
Ultraviolet lamp, is arranged on described oxidation container bottom, with ozone generation oxidative decomposition, is carbonic acid gas and water by the organic matter degradation of liquid.
9. fracturing outlet liquid modularization integrated treating device according to claim 4, is characterized in that, described liquid phase recovery and processing system also comprises:
Reaction gas discharge equipment, is connected with the vapor pipe of described catalytic oxidizing equipment upper end, for collecting, discharging the carbonic acid gas in catalytic oxidizing equipment; Drainage grid and hazardous gas component detection apparatus is provided with at the two ends of reaction gas discharge equipment; The one end being provided with drainage grid is positioned at catalytic oxidizing equipment, and the one end being provided with hazardous gas component detection apparatus is positioned at outside catalytic oxidizing equipment; Drainage grid enter the moisture of reaction gas discharge equipment for filtering, hazardous gas component detection apparatus is used for detecting in be vented body, whether hazardous gas composition exceeds standard.
10. fracturing outlet liquid modularization integrated treating device according to claim 4, it is characterized in that, described membrane filter appts comprises:
Membrane cisterna, for holding the liquid after catalytic oxidizing equipment oxidation; With
Many groups diaphragm pipeline, is uniformly placed in described membrane cisterna, for being trapped in outside diaphragm pipeline by the macromole of oxidated solution body, the small molecules of oxidated solution body being entered diaphragm pipeline and importing further in water quality detecting device.
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| CN201420635794.4U CN204151175U (en) | 2014-10-29 | 2014-10-29 | A kind of fracturing outlet liquid modularization integrated treating device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843955A (en) * | 2015-04-03 | 2015-08-19 | 李磊 | Oil and gas field drilling mud waste while-drilling processing system and processing method thereof |
| CN105927202A (en) * | 2016-04-27 | 2016-09-07 | 中国石油天然气股份有限公司 | CO2 recycling and reusing device after gas well CO2 hydrofracture |
| CN109267986A (en) * | 2018-09-30 | 2019-01-25 | 中国石油天然气股份有限公司 | A kind of anhydrous pressure break liquid device of lower carbon number hydrocarbons and fracturing process |
| CN112679020A (en) * | 2020-12-25 | 2021-04-20 | 成都硕特环保科技有限公司 | Low-cost shale gas fracturing flowback fluid treatment system and treatment method |
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2014
- 2014-10-29 CN CN201420635794.4U patent/CN204151175U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843955A (en) * | 2015-04-03 | 2015-08-19 | 李磊 | Oil and gas field drilling mud waste while-drilling processing system and processing method thereof |
| CN105927202A (en) * | 2016-04-27 | 2016-09-07 | 中国石油天然气股份有限公司 | CO2 recycling and reusing device after gas well CO2 hydrofracture |
| CN109267986A (en) * | 2018-09-30 | 2019-01-25 | 中国石油天然气股份有限公司 | A kind of anhydrous pressure break liquid device of lower carbon number hydrocarbons and fracturing process |
| CN112679020A (en) * | 2020-12-25 | 2021-04-20 | 成都硕特环保科技有限公司 | Low-cost shale gas fracturing flowback fluid treatment system and treatment method |
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