CN204569605U - Solid advanced oxidation process oil field compression fracture returns the device of the poly-sewage of discharge opeing height - Google Patents
Solid advanced oxidation process oil field compression fracture returns the device of the poly-sewage of discharge opeing height Download PDFInfo
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- CN204569605U CN204569605U CN201520201239.5U CN201520201239U CN204569605U CN 204569605 U CN204569605 U CN 204569605U CN 201520201239 U CN201520201239 U CN 201520201239U CN 204569605 U CN204569605 U CN 204569605U
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Abstract
The utility model relates to oil field compression fracture liquid processing method and device technique field, it is the device that a kind of solid advanced oxidation process oil field compression fracture returns the poly-sewage of discharge opeing height, it was installed with for the first communicating pipe between oxidation tank and coagulation tank, be installed with for the second communicating pipe between coagulation tank and flocculation tank, third connecting pipe is installed with between flocculation tank and slurry tank, oxidation tank has liquid import, oxygenant dosing mouth and the first stirring port, coagulation tank has coagulating agent dosing mouth and the second stirring port, flocculation tank there are flocculation agent dosing mouth and the 3rd stirring port, water purification mouth is had on the top of slurry tank, mud discharging mouth is had in the bottom of slurry tank.The device that described solid advanced oxidation process oil field compression fracture returns the poly-sewage of discharge opeing height can reduce high COD value and the viscosity of gathering sewage of fracturing outlet liquid effectively, organic content in purifying waste water obviously is declined, and purify waste water and can reach the standard in re-injection oil field, the addition of solid oxidizing agent, coagulating agent and flocculation agent is lower, thus reduce the processing cost of the poly-sewage of fracturing outlet liquid height, there is simple to operate and that flow process is shorter advantage.
Description
Technical field
the utility model relates to oil field compression fracture liquid processing method and device technique field, is the device that a kind of solid advanced oxidation process oil field compression fracture returns the poly-sewage of discharge opeing height.
Background technology
containing guanidine glue, formaldehyde, petroleum-type and other various additives in the remaining fracturing liquid of discharging in oil field compression fracture operation, numerous additives makes fracturing liquid (the poly-sewage of fracturing outlet liquid height) have high viscosity and high COD
cr
etc. feature.At present to treatment process mainly Treatment by Photocatalysis Oxidation, fenton chemical oxidization method, supercritical water oxidation method, coagulating treatment method, five-step approach, solidification method and the biological process etc. that fracturing liquid adopts.The subject matter of photocatalytic oxidation is ultra-violet lamp surface easily attachment one deck sump oil, and after equipment runs for some time, UV-light cannot play katalysis.Fenton chemical oxidization method can effectively be degraded the organism in the poly-sewage of fracturing outlet liquid height, but there is ferrous ion and hydrogen peroxide utilization ratio is low and cost of sewage disposal is high problem.Supercritical water oxidation method is a kind of hydrothermal oxidation technology, effectively can reduce the COD value of the poly-sewage of fracturing outlet liquid height, but ((T=374. 2 DEG C, P=22. 1MPa) is to the anticorrosive of equipment and be resistance toly pressed with higher requirement for the high-temperature and high-pressure conditions of supercritical water oxidation method.Coagulating treatment method has higher removal ability to suspended substance and sump oil, but always undesirable to the removal effect of COD, needs the pharmaceutical quantities adding relative conventional sewage process ten times.Five-step approach and coagulation-oxidation-Fe/C light electrolysis-H
2
o
2
/ Fe
2+
the problems such as the five-step approach treatment process of catalyzed oxidation-charcoal absorption, can carry out advanced treatment to fracturing liquid, but there is long flow path, and occupation area of equipment is large, and investment cost is high, and running cost is high.Solidification method utilizes solidifying agent to landfill after fracturing liquid solidification treatment, and this method expense is low, but long-term heap is rivals in a contest, environment works the mischief.Biological process utilizes microorganism to degrade to the organism in sewage, and the subject matter that this method exists is that fracturing liquid biochemical is not high, and need pre-treatment, the screening of dominant bacteria need further research.Generally speaking, the method of the poly-sewage of various process fracturing outlet liquid height respectively has its original feature above, but these technology are run and gone back ubiquity some shortcomings in reality, such as: treatment process is more loaded down with trivial details, treatment facility is complicated, medicament expends too much, processing cost is too high and have harm etc. to environment.
Summary of the invention
the utility model provides the device that a kind of solid advanced oxidation process oil field compression fracture returns the poly-sewage of discharge opeing height, overcome the deficiency of above-mentioned prior art, the complex process that its method that effectively can solve the poly-sewage of existing process fracturing outlet liquid height exists in actual use and the too high problem of processing cost.
the technical solution of the utility model is realized by following measures: a kind of solid advanced oxidation process oil field compression fracture returns the device of the poly-sewage of discharge opeing height, comprise oxidation tank, coagulation tank, flocculation tank and slurry tank, be installed with for the first communicating pipe between oxidation tank and coagulation tank, be installed with for the second communicating pipe between coagulation tank and flocculation tank, third connecting pipe is installed with between flocculation tank and slurry tank, oxidation tank has liquid import, oxygenant dosing mouth and the first stirring port, coagulation tank has coagulating agent dosing mouth and the second stirring port, flocculation tank there are flocculation agent dosing mouth and the 3rd stirring port, water purification mouth is had on the top of slurry tank, mud discharging mouth is had in the bottom of slurry tank.
here is the further optimization and/or improvements to above-mentioned utility model technical scheme:
packing plate coagulation tank inside being divided into adjacent forward slip value room, front and back and rear mixing section longitudinally can be fixed with in above-mentioned coagulation tank, between oxidation tank and forward slip value room, be installed with for the first communicating pipe, between the bottom of rear mixing section and the bottom of flocculation tank, be installed with for the second communicating pipe.
top in above-mentioned slurry tank can be installed with the sedimentation inclined tube of at least two, sedimentation inclined tube is the skewed of bottom right, upper left, adjacent sedimentation inclined tube is fixedly installed togather, water purifying plate is fixed with inside slurry tank above sedimentation inclined tube, water purifying plate is distributed with the pure water hole of at least one, the water purification cylindrical shell corresponding with pure water hole is fixed with on the top of water purifying plate, spacing is had between water purification cylindrical shell upper end and slurry tank top, slurry tank above water purifying plate there is water purification mouth, at least one subsider is fixed with in the bottom of slurry tank, subsider is frustum wide at the top and narrow at the bottom, mud discharging mouth is had in the bottom of subsider, third connecting pipe is installed with between in the middle part of flocculation tank and slurry tank, or/and, flocculation tank internal fixtion have with second communicating pipe the flocculation cylindrical shell that communicates of exit end, have circular endless tube at flocculation cylindrical shell internal fixtion, endless tube be distributed with through hole, endless tube is fixed with the chemical feed pipe corresponding with flocculation agent dosing mouth.
slurry tank above above-mentioned mud discharging mouth can there is circulation mud export, circulation mud inlet pipe is installed with between the second communicating pipe and circulation mud export, the second communicating pipe between coagulation tank and circulation mud inlet pipe is installed with valve, circulation mud inlet pipe is installed with recycle pump and stand-by pump, recycle pump and stand-by pump are connected in parallel on circulation mud inlet pipe, the first tap hole is had in the bottom of oxidation tank, first tap hole is installed with liquid discharging tube, oxidation tank has liquidometer installing port, has the first drain on the top of oxidation tank; There is the second tap hole in the bottom of coagulation tank, be installed with liquid discharging tube at the second tap hole, coagulation tank has temperature-measuring port, pH meter installing port, alkali lye dosing mouth, reserved dosing mouth and calrod installing port; There is the 3rd tap hole in the bottom of flocculation tank, the 3rd tap hole is installed with liquid discharging tube, have the second drain in flocculation tank top; There is the 3rd drain at the top of slurry tank, have the thief hole of at least one at the middle part of slurry tank, slurry tank has calrod installing port and temperature-measuring port, liquid discharging tube is installed with valve.
above-mentionedly also can comprise colored steel room, all be fixed with skid in the bottom of oxidation tank, coagulation tank and flocculation tank, oxidation tank, coagulation tank, flocculation tank, slurry tank and skid are all fixedly mounted in colored steel room.
the device that solid advanced oxidation process oil field compression fracture described in the utility model returns the poly-sewage of discharge opeing height can reduce high COD value and the viscosity of gathering sewage of fracturing outlet liquid effectively, the fall of COD value is 97% to 98.3%, organic content in purifying waste water obviously is declined, and purify waste water and can reach the standard in re-injection oil field, the addition of solid oxidizing agent, coagulating agent and flocculation agent is lower, thus reduce the processing cost of the poly-sewage of fracturing outlet liquid height, there is simple to operate and that flow process is shorter advantage.
Accompanying drawing explanation
accompanying drawing 1 is the main TV structure schematic diagram of the utility model embodiment 1.
what accompanying drawing 2 was coagulation tank in accompanying drawing 1 and flocculation tank overlooks local structure schematic diagram.
coding in accompanying drawing is respectively: 1 is oxidation tank, 2 is coagulation tank, 3 is flocculation tank, 4 is slurry tank, 5 was the first communicating pipe, 6 was the second communicating pipe, 7 is third connecting pipe, 8 for carrying out liquid import, 9 is oxygenant dosing mouth, 10 is the first stirring port, 11 is coagulating agent dosing mouth, 12 is the second stirring port, 13 is flocculation agent dosing mouth, 14 is the 3rd stirring port, 15 is water purification mouth, 16 is mud discharging mouth, 17 is forward slip value room, 18 is rear mixing section, 19 is packing plate, 20 is sedimentation inclined tube, 21 is water purifying plate, 22 is water purification cylindrical shell, 23 is subsider, 24 is the outlet of circulation mud, 25 is recycle pump, 26 is stand-by pump, 27 is the first tap hole, 28 is colored steel room, 29 is the first drain, 30 is the second tap hole, 31 is temperature-measuring port, 32 is flocculation cylindrical shell, 33 is alkali lye dosing mouth, 34 is reserved dosing mouth, 35 is calrod installing port, 36 is the 3rd tap hole, 37 is the second drain, 38 is the 3rd drain, 39 is thief hole, 40 is endless tube, 41 is chemical feed pipe, 42 is liquidometer installing port, 43 is skid.
Embodiment
the utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and practical situation.
in the utility model, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. determines according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
embodiment 1: as accompanying drawing 1, shown in 2, the device that this solid advanced oxidation process oil field compression fracture returns the poly-sewage of discharge opeing height comprises oxidation tank 1, coagulation tank 2, flocculation tank 3 and slurry tank 4, be installed with for the first communicating pipe 5 between oxidation tank 1 and coagulation tank 2, be installed with for the second communicating pipe 6 between coagulation tank 2 and flocculation tank 3, third connecting pipe 7 is installed with between flocculation tank 3 and slurry tank 4, oxidation tank 1 has liquid import 8, oxygenant dosing mouth 9 and the first stirring port 10, coagulation tank 2 has coagulating agent dosing mouth 11 and the second stirring port 12, flocculation tank 3 there are flocculation agent dosing mouth 13 and the 3rd stirring port 14, water purification mouth 15 is had on the top of slurry tank 4, mud discharging mouth 16 is had in the bottom of slurry tank 4.The poly-sewage of fracturing outlet liquid height enters oxidation tank 1 react with solid oxidizing agent by carrying out liquid import 8, oxidation solution enters coagulation tank 2 by the first communicating pipe 5 and mixes with coagulating agent, mixed solution flocculates with flocculation agent by entering flocculation tank 3 second communicating pipe 6, flocculation liquid enters slurry tank 4 by third connecting pipe 7 and carries out sedimentation, purify waste water and to be discharged by water purification mouth 15, mud is discharged by mud discharging mouth 16, carry out in the treating processes of the poly-sewage of fracturing outlet liquid height adopting the present embodiment, simple to operate, flow process is shorter.Oxygenant dosing mouth 9 has the function of adding solid oxidizing agent; Coagulating agent dosing mouth 11 has the function of adding coagulating agent; Flocculation agent dosing mouth 13 has the function of adding flocculation agent; First stirring port 10, second stirring port 12 and the 3rd stirring port 14 have the function of installing stirrer.
according to actual needs, above-described embodiment 7 can be made further optimization and/or improvements:
as shown in accompanying drawing 1,2, the packing plate 19 coagulation tank 2 inside being divided into adjacent forward slip value room 17, front and back and rear mixing section 18 is longitudinally fixed with in coagulation tank 2, between oxidation tank 1 and forward slip value room 17, be installed with for the first communicating pipe 5, between the bottom of rear mixing section 18 and the bottom of flocculation tank 3, be installed with for the second communicating pipe 6.Forward slip value room 17 and rear mixing section 18 be arranged so that oxidation solution can mix fully with mixture.
as accompanying drawing 1, shown in 2, top in slurry tank 4 is installed with the sedimentation inclined tube 20 of at least two, sedimentation inclined tube 20 is the skewed of bottom right, upper left, adjacent sedimentation inclined tube 20 is fixedly installed togather, water purifying plate 21 is fixed with inside slurry tank 4 above sedimentation inclined tube 20, water purifying plate 21 is distributed with the pure water hole of at least one, the water purification cylindrical shell 22 corresponding with pure water hole is fixed with on the top of water purifying plate 21, spacing is had between water purification cylindrical shell 22 upper end and slurry tank 4 top, slurry tank 4 above water purifying plate 21 there is water purification mouth 15, at least one subsider 23 is fixed with in the bottom of slurry tank 4, subsider 23 is in frustum wide at the top and narrow at the bottom, mud discharging mouth 16 is had in the bottom of subsider 23, third connecting pipe 7 is installed with between in the middle part of flocculation tank 3 and slurry tank 4, or/and, flocculation tank 3 internal fixtion have with second communicating pipe 6 the flocculation cylindrical shell 32 that communicates of exit end, there is circular endless tube 40 at flocculation cylindrical shell 32 internal fixtion, endless tube 40 is distributed with through hole, endless tube 40 is fixed with the chemical feed pipe 41 corresponding with flocculation agent dosing mouth 13.Mix fully with flocculation agent under the effect of stirring by the mixed solution entering flocculation cylindrical shell 32 second communicating pipe 6 and flocculate, flocculation cylindrical shell 32 is routed up after mixing, then the liquid that flocculates enters slurry tank 4 by third connecting pipe 7, enter flocculation liquid in slurry tank 4 in settling process, the throw out that in flocculation liquid, volume is larger sinks under gravity, the mud discharging mouth 16 being sink to subsider 23 pools mud and can discharge from mud discharging mouth 16, in flocculation liquid, the throw out of small volume is along with the rising of flocculation liquid, the flocculation liquid risen is by sedimentation inclined tube 20, throw out now in sedimentation inclined tube 20 is deposited on the tube wall of sedimentation inclined tube 20, then throw out slides to the bottom of slurry tank 4 under tube wall, the top arriving slurry tank 4 by water purification cylindrical shell 22 through the flocculation liquid of sedimentation inclined tube 20 is purified water, purify waste water and to be discharged by water purification mouth 15.The setting of sedimentation inclined tube 20 can improve the effect of settling of throw out.
as accompanying drawing 1, shown in 2, slurry tank 4 above mud discharging mouth 16 there is circulation mud export 24, circulation mud inlet pipe is installed with between the second communicating pipe 6 and circulation mud export 24, the second communicating pipe 6 between coagulation tank 2 and circulation mud inlet pipe is installed with valve, circulation mud inlet pipe is installed with recycle pump 25 and stand-by pump 26, recycle pump 25 and stand-by pump 26 are connected in parallel on circulation mud inlet pipe, the first tap hole 27 is had in the bottom of oxidation tank 1, first tap hole 27 is installed with liquid discharging tube, oxidation tank 1 has liquidometer installing port 42, the first drain 29 is had on the top of oxidation tank 1, there is the second tap hole 30 in the bottom of coagulation tank 2, be installed with liquid discharging tube at the second tap hole 30, coagulation tank 2 has temperature-measuring port, pH meter installing port, alkali lye dosing mouth 33, reserved dosing mouth 34 and calrod installing port, there is the 3rd tap hole 36 in the bottom of flocculation tank 3, the 3rd tap hole 36 is installed with liquid discharging tube, have the second drain 37 at flocculation tank 3 top, there is the 3rd drain 38 at the top of slurry tank 4, have the thief hole 39 of at least one at the middle part of slurry tank 4, slurry tank 4 has calrod installing port 35 and temperature-measuring port 31, liquid discharging tube is installed with valve.Circulation mud can by the re-injection of circulation mud inlet pipe in flocculation tank 3; First drain 29, second drain 37 and the 3rd drain 38 can carry out emptying according to actual needs; PH meter installing port can install pH meter, can observe the pH value in coagulation tank 2; The flocculation liquid that the setting of thief hole 39 can be extracted in slurry tank 4 carries out sampling analysis; Calrod installing port 35 is convenient to install calrod; Temperature-measuring port 31 is convenient to probe temperature.
as shown in accompanying drawing 1,2, this device also comprises colored steel room 28, is all fixed with skid 43 in the bottom of oxidation tank 1, coagulation tank 2 and flocculation tank 3, and oxidation tank 1, coagulation tank 2, flocculation tank 3, slurry tank 4 and skid 43 are all fixedly mounted in colored steel room 28.The setting in colored steel room 28 has is convenient to carrying and the little feature that takes up room.
the solid advanced oxidation process oil field compression fracture of above-mentioned enforcement returns one of method of the poly-sewage of discharge opeing height, carry out in the steps below: the first step, solid oxidizing agent is added in the poly-sewage of fracturing outlet liquid height, oxidation solution is obtained after the poly-sewage of fracturing outlet liquid height and solid oxidizing agent react under whipped state, wherein: the poly-sewage of fracturing outlet liquid height of every cubic metre adds the solid oxidizing agent of 0.06 kilogram to 0.14 kilogram, reaction times is 15 minutes to 20 minutes, and the pH value in reaction process is 4 to 6; Second step, the pH value of oxidation solution is adjusted to 7 to 8, be adjusted to pH value in the oxidation solution of 7 to 8 and add coagulating agent, mixed solution is obtained after oxidation solution and coagulating agent are uniformly mixed, wherein: the addition of coagulating agent gathers sewage for adding benchmark with the fracturing outlet liquid of cubic metre height, the addition of coagulating agent is 16.8 coagulating agent rising to 28.8 liters, and mixing time is 2 minutes to 5 minutes; 3rd step, add in mixed solution after flocculation agent carries out stirring and flocculate and obtain the liquid that flocculates, wherein: the addition of flocculation agent is with the fracturing outlet liquid of a cubic metre for adding benchmark, and the addition of flocculation agent is 14.4 flocculation agents rising to 24 liters, and flocculation time is 5min to 10min; 4th step, is purified water, mud and circulation mud by flocculation liquid after the sedimentation of 15 minutes to 25 minutes.In the present embodiment, in the poly-sewage of fracturing outlet liquid height, quality-the volumetric concentration of suspended substance is 500mg/L to 800mg/L, quality-the volumetric concentration of oleaginousness is 400mg/L to 500mg/L, quality-the volumetric concentration of COD is 10000mg/L to 12000mg/L, viscosity is 3mpas to 5mpas, after solid advanced oxidation process oil field compression fracture according to the present embodiment returns the poly-sewage of method process fracturing outlet liquid height of the poly-sewage of discharge opeing height, quality-the volumetric concentration of the suspended substance of purifying waste water obtained is 2mg/L to 5mg/L, quality-the volumetric concentration of oleaginousness is 2mg/L to 5mg/L, quality-the volumetric concentration of COD is 200mg/L to 300mg/L, viscosity is 1mpas to 1.2mpas, from the above mentioned, the method that solid advanced oxidation process oil field compression fracture according to the present embodiment returns the poly-sewage of discharge opeing height can reduce high COD value and the viscosity of gathering sewage of fracturing outlet liquid effectively, the fall of COD value is 97% to 98.3%, organic content in purifying waste water obviously is declined, and purify waste water and can reach the standard in re-injection oil field, the standard in re-injection oil field is SY/T 5329-2012 " petroclastic rock reservoir water water quality fertilizer index and analytical procedure ", in SY/T 5329-2012 " petroclastic rock reservoir water water quality fertilizer index and analytical procedure ", quality-volumetric concentration≤the 5mg/L of suspended substance, quality-volumetric concentration≤the 5mg/L of oleaginousness.In addition, the method that the solid advanced oxidation process oil field compression fracture described in the present embodiment returns the poly-sewage of discharge opeing height is simple to operate, and the addition of solid oxidizing agent, coagulating agent and flocculation agent is lower, thus reduces the processing cost of the poly-sewage of fracturing outlet liquid height.
the solid advanced oxidation process oil field compression fracture of above-mentioned enforcement returns the method two of the poly-sewage of discharge opeing height, carry out in the steps below: the first step, solid oxidizing agent is added in the poly-sewage of fracturing outlet liquid height, oxidation solution is obtained after the poly-sewage of fracturing outlet liquid height and solid oxidizing agent react under whipped state, wherein: the poly-sewage of fracturing outlet liquid height of every cubic metre adds the solid oxidizing agent of 0.06 kilogram or 0.14 kilogram, reaction times is 15 minutes or 20 minutes, and the pH value in reaction process is 4 or 6; Second step, the pH value of oxidation solution is adjusted to 7 or 8, be adjusted to pH value in the oxidation solution of 7 or 8 and add coagulating agent, mixed solution is obtained after oxidation solution and coagulating agent are uniformly mixed, wherein: the addition of coagulating agent gathers sewage for adding benchmark with the fracturing outlet liquid of cubic metre height, the addition of coagulating agent is the coagulating agent of 16.8 liters or 28.8 liters, and mixing time is 2 minutes or 5 minutes; 3rd step, add in mixed solution after flocculation agent carries out stirring and flocculate and obtain the liquid that flocculates, wherein: the addition of flocculation agent is with the fracturing outlet liquid of a cubic metre for adding benchmark, and the addition of flocculation agent is the flocculation agent of 14.4 liters or 24 liters, and flocculation time is 5min or 10min; 4th step, is purified water, mud and circulation mud by flocculation liquid after the sedimentation of 15 minutes or 25 minutes.
the solid advanced oxidation process oil field compression fracture of above-mentioned enforcement returns the method three of the poly-sewage of discharge opeing height, carry out in the steps below: the first step, solid oxidizing agent is added in the poly-sewage of fracturing outlet liquid height, oxidation solution is obtained after the poly-sewage of fracturing outlet liquid height and solid oxidizing agent react under whipped state, wherein: the poly-sewage of fracturing outlet liquid height of every cubic metre adds the solid oxidizing agent of 0.06 kilogram, reaction times is 15 minutes, and the pH value in reaction process is 4; Second step, the pH value of oxidation solution is adjusted to 7, be adjusted to pH value in the oxidation solution of 7 and add coagulating agent, mixed solution is obtained after oxidation solution and coagulating agent are uniformly mixed, wherein: the addition of coagulating agent gathers sewage for adding benchmark with the fracturing outlet liquid of cubic metre height, the addition of coagulating agent is the coagulating agent of 16.8 liters, and mixing time is 2 minutes; 3rd step, adds after flocculation agent carries out stirring and flocculate and obtains the liquid that flocculates in mixed solution, wherein: the addition of flocculation agent is with the fracturing outlet liquid of a cubic metre for adding benchmark, and the addition of flocculation agent is the flocculation agent of 14.4 liters, and flocculation time is 5min; 4th step, is purified water, mud and circulation mud by flocculation liquid after the sedimentation of 15 minutes.In the present embodiment, in the poly-sewage of fracturing outlet liquid height, quality-the volumetric concentration of suspended substance is 500mg/L, quality-the volumetric concentration of oleaginousness is 400mg/L, quality-the volumetric concentration of COD is 10000mg/L, viscosity is 3mpas, after solid advanced oxidation process oil field compression fracture according to the present embodiment returns the poly-sewage of method process fracturing outlet liquid height of the poly-sewage of discharge opeing height, quality-the volumetric concentration of the suspended substance of purifying waste water obtained is 2mg/L, quality-the volumetric concentration of oleaginousness is 2mg/L, quality-the volumetric concentration of COD is 200mg/L, viscosity is 1mpas, from the above mentioned, the method that solid advanced oxidation process oil field compression fracture according to the present embodiment returns the poly-sewage of discharge opeing height can reduce high COD value and the viscosity of gathering sewage of fracturing outlet liquid effectively, the fall of COD value is 97%, organic content in purifying waste water obviously is declined, and purify waste water and can reach the standard in re-injection oil field, the standard in re-injection oil field is SY/T 5329-2012 " petroclastic rock reservoir water water quality fertilizer index and analytical procedure ", in SY/T 5329-2012 " petroclastic rock reservoir water water quality fertilizer index and analytical procedure ", quality-volumetric concentration≤the 5mg/L of suspended substance, quality-volumetric concentration≤the 5mg/L of oleaginousness.In addition, the method that the solid advanced oxidation process oil field compression fracture described in the present embodiment returns the poly-sewage of discharge opeing height is simple to operate, and the addition of solid oxidizing agent, coagulating agent and flocculation agent is lower, thus reduces the processing cost of the poly-sewage of fracturing outlet liquid height.
the solid advanced oxidation process oil field compression fracture of above-mentioned enforcement returns the method three of the poly-sewage of discharge opeing height, carry out in the steps below: the first step, solid oxidizing agent is added in the poly-sewage of fracturing outlet liquid height, oxidation solution is obtained after the poly-sewage of fracturing outlet liquid height and solid oxidizing agent react under whipped state, wherein: the poly-sewage of fracturing outlet liquid height of every cubic metre adds the solid oxidizing agent of 0.14 kilogram, reaction times is 20 minutes, and the pH value in reaction process is 6; Second step, the pH value of oxidation solution is adjusted to 8, be adjusted to pH value in the oxidation solution of 8 and add coagulating agent, mixed solution is obtained after oxidation solution and coagulating agent are uniformly mixed, wherein: the addition of coagulating agent gathers sewage for adding benchmark with the fracturing outlet liquid of cubic metre height, the addition of coagulating agent is the coagulating agent of 28.8 liters, and mixing time is 5 minutes; 3rd step, adds after flocculation agent carries out stirring and flocculate and obtains the liquid that flocculates in mixed solution, wherein: the addition of flocculation agent is with the fracturing outlet liquid of a cubic metre for adding benchmark, and the addition of flocculation agent is the flocculation agent of 24 liters, and flocculation time is 10min; 4th step, is purified water, mud and circulation mud by flocculation liquid after the sedimentation of 25 minutes.In the present embodiment, in the poly-sewage of fracturing outlet liquid height, quality-the volumetric concentration of suspended substance is 800mg/L, quality-the volumetric concentration of oleaginousness is 500mg/L, quality-the volumetric concentration of COD is 12000mg/L, viscosity is 5mpas, after solid advanced oxidation process oil field compression fracture according to the present embodiment returns the poly-sewage of method process fracturing outlet liquid height of the poly-sewage of discharge opeing height, quality-the volumetric concentration of the suspended substance of purifying waste water obtained is 5mg/L, quality-the volumetric concentration of oleaginousness is 5mg/L, quality-the volumetric concentration of COD is 300mg/L, viscosity is 1.2mpas, from the above mentioned, the method that solid advanced oxidation process oil field compression fracture according to the present embodiment returns the poly-sewage of discharge opeing height can reduce high COD value and the viscosity of gathering sewage of fracturing outlet liquid effectively, the fall of COD value is 98.3%, organic content in purifying waste water obviously is declined, and purify waste water and can reach the standard in re-injection oil field, the standard in re-injection oil field is SY/T 5329-2012 " petroclastic rock reservoir water water quality fertilizer index and analytical procedure ", in SY/T 5329-2012 " petroclastic rock reservoir water water quality fertilizer index and analytical procedure ", quality-volumetric concentration≤the 5mg/L of suspended substance, quality-volumetric concentration≤the 5mg/L of oleaginousness.In addition, the method that the solid advanced oxidation process oil field compression fracture described in the present embodiment returns the poly-sewage of discharge opeing height is simple to operate, and the addition of solid oxidizing agent, coagulating agent and flocculation agent is lower, thus reduces the processing cost of the poly-sewage of fracturing outlet liquid height.
be with the difference of aforesaid method, solid oxidizing agent is ammonium persulphate or potassium bichromate or potassium permanganate; Or/and, coagulating agent to be mass percent be 25% to 40% polyaluminium aluminum water solution, flocculation agent to be mass percent be 0.5% to 2% polyacrylamide solution; Or/and, by the re-injection of circulation mud in the 3rd step, the circulation mud of re-injection 1 cubic metre to 2 cubic metres in the mixed solution of every 20 cubic metres to 30 cubic metres.Circulation mud in the third step can as the nucleus of condensation of flco, adsorption-flocculation tank 3 inner suspension thing, are formed more greatly and more real flco, are conducive to the sedimentation of suspended substance, improve the rate of descent of suspended substance.
as shown in accompanying drawing 1,2, be with the difference of aforesaid method, the first step is carried out in oxidation tank 1, and the stirring velocity in the first step is 80r/min to 150r/min; Or/and second step carries out in coagulation tank 2, the stirring velocity in second step is 100r/min to 150r/min; Or/and the 3rd step is carried out in flocculation tank 3, and the stirring velocity in the 3rd step is 8r/min to 10r/min; Or/and the 4th step is carried out in slurry tank 4.In each step, the setting of stirring velocity can improve the corresponding speed of reaction of each step.
in sum, the device that solid advanced oxidation process oil field compression fracture described in the utility model returns the poly-sewage of discharge opeing height can reduce high COD value and the viscosity of gathering sewage of fracturing outlet liquid effectively, the fall of COD value is 97% to 98.3%, organic content in purifying waste water obviously is declined, and purify waste water and can reach the standard in re-injection oil field, the addition of solid oxidizing agent, coagulating agent and flocculation agent is lower, thus reduce the processing cost of the poly-sewage of fracturing outlet liquid height, there is simple to operate and that flow process is shorter advantage.
above technical characteristic constitutes embodiment of the present utility model, and it has stronger adaptability and implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (9)
1. a solid advanced oxidation process oil field compression fracture returns the high device gathering sewage of discharge opeing, it is characterized in that comprising oxidation tank, coagulation tank, flocculation tank and slurry tank, be installed with for the first communicating pipe between oxidation tank and coagulation tank, be installed with for the second communicating pipe between coagulation tank and flocculation tank, third connecting pipe is installed with between flocculation tank and slurry tank, oxidation tank has liquid import, oxygenant dosing mouth and the first stirring port, coagulation tank has coagulating agent dosing mouth and the second stirring port, flocculation tank there are flocculation agent dosing mouth and the 3rd stirring port, water purification mouth is had on the top of slurry tank, mud discharging mouth is had in the bottom of slurry tank.
2. device according to claim 1, it is characterized in that in coagulation tank, being longitudinally fixed with packing plate coagulation tank inside being divided into adjacent forward slip value room, front and back and rear mixing section, between oxidation tank and forward slip value room, be installed with for the first communicating pipe, between the bottom of rear mixing section and the bottom of flocculation tank, be installed with for the second communicating pipe.
3. device according to claim 1 and 2, it is characterized in that the top in slurry tank is installed with the sedimentation inclined tube of at least two, sedimentation inclined tube is the skewed of bottom right, upper left, adjacent sedimentation inclined tube is fixedly installed togather, water purifying plate is fixed with inside slurry tank above sedimentation inclined tube, water purifying plate is distributed with the pure water hole of at least one, the water purification cylindrical shell corresponding with pure water hole is fixed with on the top of water purifying plate, spacing is had between water purification cylindrical shell upper end and slurry tank top, slurry tank above water purifying plate there is water purification mouth, at least one subsider is fixed with in the bottom of slurry tank, subsider is frustum wide at the top and narrow at the bottom, mud discharging mouth is had in the bottom of subsider, third connecting pipe is installed with between in the middle part of flocculation tank and slurry tank, or/and, flocculation tank internal fixtion have with second communicating pipe the flocculation cylindrical shell that communicates of exit end, have circular endless tube at flocculation cylindrical shell internal fixtion, endless tube be distributed with through hole, endless tube is fixed with the chemical feed pipe corresponding with flocculation agent dosing mouth.
4. device according to claim 1 and 2, it is characterized in that the slurry tank above mud discharging mouth having circulation mud export, circulation mud inlet pipe is installed with between the second communicating pipe and circulation mud export, the second communicating pipe between coagulation tank and circulation mud inlet pipe is installed with valve, circulation mud inlet pipe is installed with recycle pump and stand-by pump, recycle pump and stand-by pump are connected in parallel on circulation mud inlet pipe, the first tap hole is had in the bottom of oxidation tank, first tap hole is installed with liquid discharging tube, oxidation tank has liquidometer installing port, the first drain is had on the top of oxidation tank, there is the second tap hole in the bottom of coagulation tank, be installed with liquid discharging tube at the second tap hole, coagulation tank has temperature-measuring port, pH meter installing port, alkali lye dosing mouth, reserved dosing mouth and calrod installing port, there is the 3rd tap hole in the bottom of flocculation tank, the 3rd tap hole is installed with liquid discharging tube, have the second drain in flocculation tank top, there is the 3rd drain at the top of slurry tank, have the thief hole of at least one at the middle part of slurry tank, slurry tank has calrod installing port and temperature-measuring port, liquid discharging tube is installed with valve.
5. device according to claim 3, it is characterized in that the slurry tank above mud discharging mouth having circulation mud export, circulation mud inlet pipe is installed with between the second communicating pipe and circulation mud export, the second communicating pipe between coagulation tank and circulation mud inlet pipe is installed with valve, circulation mud inlet pipe is installed with recycle pump and stand-by pump, recycle pump and stand-by pump are connected in parallel on circulation mud inlet pipe, the first tap hole is had in the bottom of oxidation tank, first tap hole is installed with liquid discharging tube, oxidation tank has liquidometer installing port, the first drain is had on the top of oxidation tank, there is the second tap hole in the bottom of coagulation tank, be installed with liquid discharging tube at the second tap hole, coagulation tank has temperature-measuring port, pH meter installing port, alkali lye dosing mouth, reserved dosing mouth and calrod installing port, there is the 3rd tap hole in the bottom of flocculation tank, the 3rd tap hole is installed with liquid discharging tube, have the second drain in flocculation tank top, there is the 3rd drain at the top of slurry tank, have the thief hole of at least one at the middle part of slurry tank, slurry tank has calrod installing port and temperature-measuring port, liquid discharging tube is installed with valve.
6. device according to claim 1 and 2, characterized by further comprising colored steel room, is all fixed with skid in the bottom of oxidation tank, coagulation tank and flocculation tank, and oxidation tank, coagulation tank, flocculation tank, slurry tank and skid are all fixedly mounted in colored steel room.
7. device according to claim 3, characterized by further comprising colored steel room, is all fixed with skid in the bottom of oxidation tank, coagulation tank and flocculation tank, and oxidation tank, coagulation tank, flocculation tank, slurry tank and skid are all fixedly mounted in colored steel room.
8. device according to claim 4, characterized by further comprising colored steel room, is all fixed with skid in the bottom of oxidation tank, coagulation tank and flocculation tank, and oxidation tank, coagulation tank, flocculation tank, slurry tank and skid are all fixedly mounted in colored steel room.
9. device according to claim 5, characterized by further comprising colored steel room, is all fixed with skid in the bottom of oxidation tank, coagulation tank and flocculation tank, and oxidation tank, coagulation tank, flocculation tank, slurry tank and skid are all fixedly mounted in colored steel room.
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| CN201520201239.5U CN204569605U (en) | 2015-04-03 | 2015-04-03 | Solid advanced oxidation process oil field compression fracture returns the device of the poly-sewage of discharge opeing height |
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| CN201520201239.5U CN204569605U (en) | 2015-04-03 | 2015-04-03 | Solid advanced oxidation process oil field compression fracture returns the device of the poly-sewage of discharge opeing height |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817204A (en) * | 2015-04-03 | 2015-08-05 | 新疆石油勘察设计研究院（有限公司） | Method and apparatus for solid advanced oxidation treatment of oil field fracturing flow-back fluid high poly sewage |
| 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 |
-
2015
- 2015-04-03 CN CN201520201239.5U patent/CN204569605U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817204A (en) * | 2015-04-03 | 2015-08-05 | 新疆石油勘察设计研究院（有限公司） | Method and apparatus for solid advanced oxidation treatment of oil field fracturing flow-back fluid high poly sewage |
| 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 |
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Address after: 302, room 115, block C, friendship road, No. 834000, the Xinjiang Uygur Autonomous Region, Karamay Patentee after: XINJIANG PETROLEUM ENGINEERING DESIGN Co.,Ltd. Address before: 302, room 115, block C, friendship road, No. 834000, the Xinjiang Uygur Autonomous Region, Karamay Patentee before: XINJIANG PETROLEUM PROSPECTING DESIGN RESEARCH INSTITUTE (Co.,Ltd.) |
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Effective date of registration: 20160426 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: China National Petroleum Corp. Patentee after: XINJIANG PETROLEUM ENGINEERING DESIGN Co.,Ltd. Address before: 302, room 115, block C, friendship road, No. 834000, the Xinjiang Uygur Autonomous Region, Karamay Patentee before: XINJIANG PETROLEUM ENGINEERING DESIGN Co.,Ltd. |