CN210419526U - Premixing scaling oilfield produced water treatment device - Google Patents
Premixing scaling oilfield produced water treatment device Download PDFInfo
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- CN210419526U CN210419526U CN201920787234.3U CN201920787234U CN210419526U CN 210419526 U CN210419526 U CN 210419526U CN 201920787234 U CN201920787234 U CN 201920787234U CN 210419526 U CN210419526 U CN 210419526U
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Abstract
The utility model belongs to the technical field of oil field multilayer is water injection development, concretely relates to in advance scale deposit oil field produced water processing apparatus. The utility model discloses a premixing unit, flocculation sedimentation unit, regulating unit, filter unit and clear water unit's organic setting, through definite suitable mixing proportion, mix two kinds of not compatible produced water scale deposit in advance, thoughtlessly congeal sedimentation treatment, mix five steps of pH value regulation and produced water filtration of back produced water, the effectual modification of carrying out quality of water. The utility model simplifies the processing flow, greatly reduces the dosage of the medicament and the processing cost in the chemical processing process; the integrated device is prefabricated in a modularized mode, can be assembled according to the actual conditions on site according to modules, is flexible to construct, and saves occupied space.
Description
Technical Field
The utility model belongs to the technical field of oil field multilayer is water injection development, concretely relates to in advance scale deposit oil field produced water processing apparatus.
Background
Under the conditions of energy shortage and land acquisition difficulty, the application of multilayer system development is gradually popularized in order to fully exploit underground resources and improve the crude oil recovery ratio. Because the properties of the crude oil produced by multi-layer development are different, the water quality of the formation water is larger and the water types are different. In different water types, some water types are rich in scale forming cations of calcium, magnesium, strontium and barium, and some water types are rich in scale forming anions of bicarbonate radical and sulfate radical; due to the serious incompatibility, the scale formation amount after mixing is large, so that pipelines and equipment are blocked and corroded, stratum blockage can be caused when the stratum is not treated and reinjected well, the water injection pressure is increased, and the operation and maintenance cost of oil extraction is increased. In order to avoid the phenomenon, at present, layered treatment and layered reinjection methods are mostly adopted for oil layers with poor compatibility, so that the ground construction sites are more, the equipment is more, and the investment is high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a mix scale deposit oil field produced water processing apparatus in advance, aim at provide different system of layers, not join in marriage produced water and can merge the processing to reduce the scale deposit oil field produced water processing apparatus in advance of engineering investment.
In order to achieve the above object, the utility model adopts the following technical scheme:
a pre-mixing scaling oilfield produced water treatment device comprises
A pre-mixing unit for pre-mixing the raw materials,
the input end of the flocculation sedimentation unit is connected with the output end of the premixing unit and is positioned at the upper part of the premixing unit;
the input end of the adjusting unit is connected with the output end of the flocculation settling unit;
the input end of the filtering unit is connected with the output end of the adjusting unit;
the input end of the clear water unit is connected with the output end of the filtering unit;
and the control unit is connected with the premixing unit, the flocculation settling unit, the adjusting unit and the clear water unit through wires.
The device also comprises a fixed frame; the flocculation sedimentation unit is connected to the upper surface of the fixing frame at the upper part of the premixing unit, the adjusting unit is connected to the middle part of the fixing frame, the clear water unit is connected to the upper surface of the bottom at the other end of the fixing frame, and the filtering unit is connected between the adjusting unit and the clear water unit.
The premixing unit comprises a first water inlet pipe, a second water inlet pipe, a flow controller, a water inlet mixing pipe, a premixing scaling raw water tank, a pre-scaling filter layer and a lift pump; the first water inlet pipe and the first water inlet pipe parallelly penetrate through the side wall of the upper part of the premixing scaling raw water tank and are connected with a water inlet mixing pipe in the premixing scaling raw water tank; the first water inlet pipe and the second water inlet pipe are respectively connected with a flow controller; the pre-scaling filter layer is at least provided with one layer and is horizontally connected in a pre-mixing scaling raw water tank positioned at the lower part of the water inlet mixing pipe; the input end of the lift pump is connected to the outer side wall of the pre-mixed scaling raw water tank at the lower part of the pre-scaling filter layer, and the side wall of the bottom of the pre-mixed scaling raw water tank is provided with a first drainage port; the output end of the lift pump is connected with the input end of the flocculation sedimentation unit; the water inlet mixing pipe is vertical to the first water inlet pipe and the second water inlet pipe; the lift pump is connected with the control unit through a wire.
The single layer of the pre-scaling filter layer is provided with an independent frame, and the pre-scaling filter layer is hermetically connected with the pre-mixed scaling raw water tank body.
The flocculation sedimentation unit comprises a reaction tank, a stirrer, an inclined plate sedimentation tank and a dosing machine; the input end of the reaction tank is connected with the premixing unit; the upper end of the stirrer extends out of the reaction tank and is connected with the upper surface of the reaction tank; the inclined plate sedimentation tank is connected to the upper part of the output end of the reaction tank, and the reaction tank is communicated with the regulating unit through a pipeline; the dosing machine is at least provided with one dosing machine and is connected to a pipeline for connecting the premixing unit with the reaction tank; the bottom of the sedimentation tank is connected with a second water outlet; the stirrer is connected with the control unit through a wire.
Intercepting plates are arranged in the reaction tank in a vertically staggered manner; the reaction tank is divided into a plurality of chambers by the interception plate, and the stirrer and the inclined plate sedimentation tank are respectively arranged in different chambers; the water inlet pipeline of the reaction tank is provided with a first sampling port.
The adjusting unit comprises a pH adjusting tank, an intermediate water pump and an online pH detector; the input end of the lower part of the pH adjusting tank is connected with the output end of the flocculation sedimentation unit, the output end of the upper part of the pH adjusting tank is connected with the intermediate water tank, the bottom in the intermediate water tank is connected with an intermediate water pump, and the side wall of the bottom of the intermediate water tank is provided with a water outlet; the output end of the intermediate water pump is connected with the filtering unit, and a second sampling port is arranged on a pipeline connecting the output end of the intermediate water pump with the filtering unit; the pH adjusting tank is arranged higher than the intermediate water tank; the bottom of the pH adjusting tank is connected with a second water outlet; the online pH detector is connected to the upper surface of the pH adjusting tank, and a probe of the online pH detector extends into the intermediate water tank; the upper surface of the pH adjusting tank is also connected with a stirrer; the intermediate water pump, the stirrer and the online pH detector are connected with the control unit through wires.
The filtering unit comprises a primary filter and a secondary filter; the primary filter is provided with an input port and three output ports, the input port is connected with the output end of the adjusting unit, and an overrunning bypass pipe is arranged between the input port of the primary filter and the clear water unit; three output ports of the primary filter are respectively connected with the secondary filter, the clear water unit and the second water outlet; the input end of the secondary filter is provided with an input port and two output ports, the input port of the secondary filter is connected with the primary filter, and the two output ports of the secondary filter are respectively connected with the clean water unit and the second water outlet.
The clean water unit comprises a clean water tank and a backwashing water pump; the backwashing water pump is connected to the bottom in the clean water tank; a third water outlet is formed in the side wall of the bottom of the clear water tank; the backwashing water pump is connected with the control unit through a wire.
Has the advantages that:
(1) the utility model makes full use of the characteristics of scaling anions and cations in two produced waters with incompatible water types to modify the water quality and simplify the treatment process;
(2) the scale forming ions in the produced water after the premixing and precipitation are reduced, the treatment difficulty is reduced, and the medicament adding amount and the treatment cost in the chemical treatment process are greatly reduced;
(3) the utility model discloses integrated device modularization is prefabricated, and the scene can be according to the module equipment according to actual conditions, and the construction is nimble, practices thrift and accounts for the ground.
The above description is only an overview of the technical solution of the present invention, and in order to clearly understand the technical means of the present invention and to implement the technical solution according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a flow chart of the present invention.
In the figure: 1-a water inlet pipe I; 2-water inlet pipe II; 3-a flow controller; 4-a water inlet mixing pipe; 5-premixing the scaling raw water tank; 6-pre-scaling filter layer; 7-a lift pump; 8-a reaction tank; 9-a stirrer; 10-inclined plate sedimentation tank; 11-a medicine adding machine; 12-a pH adjusting tank; 13-an intermediate water tank; 14-intermediate water pump; 15-first stage filter; 16-a secondary filter; 17-a clean water tank; 18-backwash water pump; 19-overrun bypass pipe; 20-a control box; 21-a first drain; 22-a second drain opening; 23-a third drain opening; 24-a fixing frame; 25-interception plate, 26-first sampling port and 27-online pH detector; 28-second sample port.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
a pre-mixed scaling oilfield produced water treatment device shown in figure 1 comprises
A pre-mixing unit for pre-mixing the raw materials,
the input end of the flocculation sedimentation unit is connected with the output end of the premixing unit and is positioned at the upper part of the premixing unit;
the input end of the adjusting unit is connected with the output end of the flocculation settling unit;
the input end of the filtering unit is connected with the output end of the adjusting unit;
the input end of the clear water unit is connected with the output end of the filtering unit;
and the control unit is connected with the premixing unit, the flocculation settling unit, the adjusting unit and the clear water unit through wires.
During actual use, produced water with incompatible layers firstly enters the premixing unit, scaling of two water qualities is accelerated through full mixing of the premixing unit, and the produced water with incompatible layers enters the flocculation settling unit after scaling is fully removed by scaling to form scaling anions and cations; adding medicine according to the concentration of the residual scale forming ions in the mixed water entering the flocculation sedimentation unit, then carrying out coagulation sedimentation treatment, enabling the supernatant of the treated mixed water to enter an adjusting unit, adjusting the pH value to be neutral, and entering a filtering unit after meeting the requirement of reinjection water quality; after being filtered by the filtering unit, the filtered effluent is stored in the clear water unit and is output outwards at any time.
The utility model discloses to mix in advance the unit and the unit is subsided in flocculation and adopt upper and lower floor structure, the upper and lower difference in height overflow goes out water about the make full use of, reduces the promotion number of times of water, and upper and lower difference in height is confirmed according to the processing water yield and the former water tank height of scale deposit in advance, practices thrift and takes up an area of. The utility model provides a what the control unit adopted is that prior art's PLC controller or prior art's control circuit realize that open of opening of agitator or water pump in premixing unit, flocculation settlement unit, regulating unit, clear water unit and the acquireing of the data of pH value among the regulating unit.
The utility model is suitable for an extraction water treatment in multilayer system water injection development process, through the poor extraction water premix scale deposit with two kinds of compatibilities get rid of the scaling ion in aqueous, reach the purpose that quality of water is modified, when getting rid of the extraction water behind the scaling ion and co-injecting into the stratum and driving oil, for avoiding mixing water scale deposit volume to cause the pipeline greatly, equipment, the stratum blocks up, utilize these two kinds of not coordinating extraction water to have different scaling anion and cation, the aquatic scaling ion is got rid of to the at utmost, reinjection stratum again, reduce the input volume of follow-up antisludging agent, reduce the scale deposit possibility in extraction water reinjection stratum simultaneously. The utility model discloses can merge the processing with different system of series, incompatible produced water, reduce the engineering investment.
Example two:
according to a premixed scale oil field produced water treatment facilities that shows in FIG. 1, the difference with the embodiment one lies in: also includes a fixed mount 24; the pre-mixing unit is connected to the upper surface of the bottom of one end of the inner side of the fixing frame 24, the flocculation sedimentation unit is connected to the upper surface of the fixing frame 24 on the upper portion of the pre-mixing unit, the adjusting unit is connected to the middle of the fixing frame 24, the clear water unit is connected to the upper surface of the bottom of the other end of the inner side of the fixing frame 24, and the filtering unit is connected between the adjusting unit and the clear water unit.
When in actual use, the fixing frame 24 integrates the premixing unit, the flocculation sedimentation unit, the adjusting unit, the filtering unit and the clear water unit into a whole, so that the device can be assembled on site, and the occupied area is saved.
Example three:
according to a premixed scale oil field produced water treatment facilities that shows in FIG. 1, the difference with the embodiment one lies in: the premixing unit comprises a water inlet pipe I1, a water inlet pipe II 2, a flow controller 3, a water inlet mixing pipe 4, a premixing scaling raw water tank 5, a pre-scaling filter layer 6 and a lift pump 7; the water inlet pipe I1 and the water inlet pipe II 2 penetrate through the side wall of the upper part of the premixing scaling raw water tank 5 and are connected with the water inlet mixing pipe 4 in the premixing scaling raw water tank 5; the first water inlet pipe 1 and the second water inlet pipe 2 are respectively connected with a flow controller 3; the pre-scaling filter layer 6 is at least provided with one layer and is horizontally connected in a pre-mixing scaling raw water tank 5 positioned at the lower part of the water inlet mixing pipe 4; the input end of the lifting pump 7 is connected to the outer side wall of the pre-mixed scaling raw water tank 5 at the lower part of the pre-scaling filter layer 6, and the side wall of the bottom of the pre-mixed scaling raw water tank 5 is provided with a first water discharge port 21; the output end of the lifting pump 7 is connected with the input end of the flocculation sedimentation unit; the lift pump 7 is wired to the control unit.
In actual use, the two incompatible produced water enters the premixed scaling raw water tank 5 through the water inlet pipe I1 and the water inlet pipe II 2 and the water inlet mixing pipe 4; the produced water in the first water inlet pipe 1 enters the second water inlet pipe 2 through the vertically arranged mixing pipe 4, and the two water flows are mixed in the vertical direction to form turbulent flow and enhance the water quality mixing effect. The produced water entering the water premixing and scaling raw water tank 5 is subjected to experiment to determine the proper mixing ratio of the two water qualities, and the inflow rate is adjusted through the flow controller 3, so that the two water qualities are scaled to the maximum extent under the proper ratio, and scaling ions in the mixed water are reduced.
Example four:
according to the premixed scale oil field produced water treatment device shown in the figure 1, the difference from the third embodiment is that: the single layer of the pre-scaling filter layer 6 is provided with an independent frame, and the pre-scaling filter layer 6 is hermetically connected with the tank body of the pre-mixing scaling raw water tank 5.
During the in-service use, the filter bed 6 of incrustation in advance is network structure, according to actual need, divides two-layer or multilayer setting, and the individual layer has independent frame, and with have sealing connection between the jar body, can freely dismantle, carries out periodic replacement. The filter layer with the attached scale body can be processed and recycled according to the scale property.
Example five:
according to a premixed scale oil field produced water treatment facilities that shows in FIG. 1, the difference with the embodiment one lies in: the flocculation sedimentation unit comprises a reaction tank 8, a stirrer 9, an inclined plate sedimentation tank 10 and a dosing machine 11; the input end of the reaction tank 8 is connected with the premixing unit; the stirrers 9 are arranged in at least one group, and the upper ends of the stirrers 9 extend out of the reaction tank 8 and are connected with the upper surface of the reaction tank 8; the inclined plate sedimentation tank 10 is connected to the upper part of the output end of the reaction tank 8, and the reaction tank 8 is communicated with the regulating unit through a pipeline; the dosing machine 11 is at least provided with one dosing machine and is connected to a pipeline for connecting the premixing unit with the reaction tank 8; the bottom of the sedimentation tank 10 is connected with a second water outlet 22; the stirrer 9 is connected with the control unit through wires.
Preferably, the reaction tank 8 is internally provided with intercepting plates 25 which are staggered up and down; the reaction tank 8 is divided into a plurality of chambers by the interception plate 25, and the stirrer 9 and the inclined plate sedimentation tank 10 are respectively arranged in different chambers; the water inlet pipeline of the reaction tank is provided with a first sampling port 26.
When the method is used in practice, when some scaling cations still remain in the effluent of the premixing unit, a coagulation and sedimentation process is adopted, and an oxidant, a flocculating agent and a coagulant aid are added in the reaction sequence to remove the ions in a targeted manner and purify the water quality. The reagents respectively enter a first-stage reaction tank and a second-stage reaction tank according to a reaction time sequence, a mechanical stirrer is arranged in the first-stage reaction tank, residual scale-forming cations are removed in a targeted manner, and supernatant enters a next-stage regulating unit after being precipitated by an inclined plate precipitation tank 10. The technical proposal that the interception plates 25 are arranged in the reaction tank 8 in a vertically staggered manner enables the flocculation sedimentation effect to be better. The scale forming ions in the effluent water after passing through the flocculation sedimentation unit are greatly reduced, the water quality of the injected water is improved, and the dosage of chemical agents is reduced. Establish first sample connection 26 on the reaction tank inlet tube line, conveniently carry out the water quality testing sample.
Example six:
according to a premixed scale oil field produced water treatment facilities that shows in FIG. 1, the difference with the embodiment one lies in: the adjusting unit comprises a pH adjusting tank 12, an intermediate water tank 13, an intermediate water pump 14 and an online pH detector 27; the input end of the lower part of the pH adjusting tank 12 is connected with the output end of the flocculation sedimentation unit, the output end of the upper part of the pH adjusting tank 12 is connected with the intermediate water tank 13, the bottom in the intermediate water tank 13 is connected with the intermediate water pump 14, and the side wall of the bottom of the intermediate water tank 13 is provided with a water outlet; the output end of the intermediate water pump 14 is connected with the filtering unit, and a second sampling port 28 is arranged on a pipeline connecting the output end of the intermediate water pump 14 with the filtering unit; the pH adjusting tank 12 is arranged higher than the intermediate water tank 13; the bottom of the pH adjusting tank 12 is connected with a second water outlet 22; the online pH detector 27 is connected to the upper surface of the pH adjusting tank 12, and a probe of the online pH detector 27 extends into the intermediate water tank 13; the upper surface of the pH adjusting tank 12 is also connected with a stirrer; the intermediate water pump 14, the stirrer and the online pH detector 27 are connected with the control unit through wires.
During actual use, the mixture enters a pH adjusting tank and is provided with an online pH detector 27, corresponding agents are added according to the pH condition of the medium in the pH adjusting tank 12, and the medium in the pH adjusting tank 12 is adjusted to meet the requirement of reinjection water quality. The pH adjusting tank 12 and the intermediate water tank 13 adopt an upper-layer structure and a lower-layer structure, overflow water is fully utilized due to the height difference of the upper layer and the lower layer, the lifting times of water are reduced, and the height difference of the upper layer and the lower layer is determined according to the treated water quantity and the actual situation. The second sampling port 28 is provided to facilitate water quality detection and sampling.
Example seven:
according to a premixed scale oil field produced water treatment facilities that shows in FIG. 1, the difference with the embodiment one lies in: the filtering unit comprises a primary filter 15 and a secondary filter 16; the primary filter 15 is provided with an input port and three output ports, the input port is connected with the output end of the adjusting unit, and an overrunning bypass pipe 19 is arranged between the input port of the primary filter 15 and the clear water unit; three output ports of the primary filter 15 are respectively connected with the secondary filter 16, the clear water unit and the second water outlet 22; the input end of the secondary filter 16 is provided with an input port and two output ports, the input port of the secondary filter 16 is connected with the primary filter 15, and the two output ports of the secondary filter 16 are respectively connected with the clean water unit and the second water outlet 22.
In practical use, the primary filter 15 and the secondary filter 16 are connected in series for operation, and after two-stage filtration, the settled filtered water is greatly reduced in scale formation ions, so that the water quality of injected water is improved.
Example eight:
according to a premixed scale oil field produced water treatment facilities that shows in FIG. 1, the difference with the embodiment one lies in: the clean water unit comprises a clean water tank 17 and a backwashing water pump 18; the backwashing water pump 18 is connected to the bottom in the clean water tank 17; a third water outlet 23 is arranged on the side wall of the bottom of the clean water tank 17; the backwashing water pump 18 is connected with the control unit through wires.
When in actual use, the arrangement of the backwashing water pump 18 can operate pressure automatic backwashing when needed, and the good operation state of the equipment is ensured.
Example nine:
according to the treatment method for the produced water of the premixed scaling oil field shown in the figure 2, the treatment method comprises the following steps:
the method comprises the following steps: determining a suitable mixing ratio
Taking two produced water to be mixed, respectively carrying out water quality ion detection analysis, simulating the water quality scaling trend, giving out the maximum scaling amount of the two water qualities under the condition of mixing in different proportions, wherein the proportion of the maximum scaling amount after mixing is the proper mixing proportion of the two water qualities;
step two: mixing two incompatible produced waters for pre-scaling
According to the proper mixing proportion determined in the step one, two types of incompatible produced water respectively enter a premixed scaling raw water tank 4 through a water inlet pipe I1 and a water inlet pipe II 2 of the premixed scaling oilfield produced water treatment device, are fully mixed in the premixed scaling raw water tank 4, and are subjected to maximized scaling settlement through a pre-scaling filter layer 6 arranged in the tank;
step three: coagulation sedimentation treatment
The produced water which is fully mixed, scaled and purified in the second step is lifted by a lifting pump 7 of a premixed scaling oilfield produced water treatment device and then enters a reaction tank 8, the concentration of the residual scaling ions in the mixed water is analyzed through water quality detection, then medicine is added in a targeted manner for sedimentation, and when the residual scaling cations are more, agents such as sodium carbonate, aluminum sulfate and the like are added to promote the sedimentation of the scaling ions such as calcium, magnesium and the like;
step four: pH adjustment of mixed produced water
The mixed solution after coagulation and sedimentation treatment in the third step enters a pH adjusting tank 12, and a medicament is added through the value measured by an online pH detector, and the pH of the mixed solution is adjusted to be neutral so as to meet the reinjection requirement;
step five: produced water filtration
And D, the produced water adjusted to be neutral in the step four passes through the intermediate water pump 14 and is filtered by the filtering unit, the filtered produced water is stored in the clean water tank 17 and then is output, and the whole process of treating the pre-mixed scaling oilfield produced water is completed.
In actual use, when a proper mixing ratio is determined in the first step, two produced waters to be mixed are taken, water quality ion detection analysis is carried out by adopting the prior art respectively, the water quality scaling trend is simulated by scaling analysis software in the prior art, the maximum scaling amount of the two water qualities under the condition of mixing in different ratios is given, and the ratio of the maximum scaling amount after mixing is the proper mixing ratio of the two water qualities; the water quality detection and analysis in the coagulation sedimentation treatment in the third step is also the water quality detection and analysis carried out by adopting the prior art; the utility model discloses a confirm suitable mixed proportion, mix two kinds of produced water that are not matched with in advance scale deposit, thoughtlessly congeal five steps of pH value regulation and produced water filtration of sedimentation treatment, mixed back produced water, the effectual modification of carrying out quality of water. The utility model simplifies the processing flow, greatly reduces the dosage of the medicament and the processing cost in the chemical processing process; the integrated device is prefabricated in a modularized mode, can be assembled according to the actual conditions on site according to modules, is flexible to construct, and saves occupied space.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
In the case of no conflict, a person skilled in the art may combine the related technical features in the above examples according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein.
The foregoing is illustrative of the preferred embodiments of the present invention, and the present invention is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a mix scale deposit oil field produced water processing apparatus which characterized in that: comprises that
A pre-mixing unit for pre-mixing the raw materials,
the input end of the flocculation sedimentation unit is connected with the output end of the premixing unit and is positioned at the upper part of the premixing unit;
the input end of the adjusting unit is connected with the output end of the flocculation settling unit;
the input end of the filtering unit is connected with the output end of the adjusting unit;
the input end of the clear water unit is connected with the output end of the filtering unit;
and the control unit is connected with the premixing unit, the flocculation settling unit, the adjusting unit and the clear water unit through wires.
2. The premixed scaling oilfield produced water treatment device of claim 1, wherein: also comprises a fixed frame (24); the unit connection is in the bottom upper surface of mount (24) inboard one end in advance, the flocculation sedimentation unit connection is in mount (24) upper surface on the unit upper portion in advance, adjusts the unit connection is in mount (24) middle part, and the clear water unit connection is at the bottom upper surface of the inboard other end of mount (24), filtering unit connects between adjusting unit and clear water unit.
3. The premixed scaling oilfield produced water treatment device of claim 1, wherein: the premixing unit comprises a first water inlet pipe (1), a second water inlet pipe (2), a flow controller (3), a water inlet mixing pipe (4), a premixing scaling raw water tank (5), a pre-scaling filter layer (6) and a lift pump (7); the water inlet pipe I (1) and the water inlet pipe II (2) parallelly penetrate through the side wall of the upper part of the premixing scaling raw water tank (5) and are connected with the water inlet mixing pipe (4) in the premixing scaling raw water tank (5); the first water inlet pipe (1) and the second water inlet pipe (2) are respectively connected with a flow controller (3); the pre-scaling filter layer (6) is at least provided with one layer and is horizontally connected in a pre-mixing scaling raw water tank (5) positioned at the lower part of the water inlet mixing pipe (4); the input end of the lift pump (7) is connected to the outer side wall of the pre-mixed scaling raw water tank (5) at the lower part of the pre-scaling filter layer (6), and the side wall of the bottom of the pre-mixed scaling raw water tank (5) is provided with a first water discharge port (21); the output end of the lifting pump (7) is connected with the input end of the flocculation sedimentation unit; the water inlet mixing pipe (4) is vertical to the water inlet pipe I (1) and the water inlet pipe II (2); the lifting pump (7) is connected with the control unit through a wire.
4. The premixed scaling oilfield produced water treatment device of claim 3, wherein: the single layer of the pre-scaling filter layer (6) is provided with an independent frame, and the pre-scaling filter layer (6) is hermetically connected with the tank body of the pre-mixed scaling raw water tank (5).
5. The premixed scaling oilfield produced water treatment device of claim 1, wherein: the flocculation sedimentation unit comprises a reaction tank (8), a stirrer (9), an inclined plate sedimentation tank (10) and a dosing machine (11); the input end of the reaction tank (8) is connected with the premixing unit; the stirrer (9) is at least provided with one group, and the upper end of the stirrer (9) extends out of the reaction tank (8) and is connected with the upper surface of the reaction tank (8); the inclined plate sedimentation tank (10) is connected to the upper part of the output end of the reaction tank (8), and the reaction tank (8) is communicated with the regulating unit through a pipeline; the dosing machine (11) is at least provided with one dosing machine and is connected to a pipeline for connecting the premixing unit with the reaction tank (8); the bottom of the sedimentation tank (10) is connected with a second water outlet (22); the stirrer (9) is connected with the control unit through a wire.
6. The premixed scaling oilfield produced water treatment device of claim 5, wherein: intercepting plates (25) are arranged in the reaction tank (8) in a vertically staggered manner; the reaction tank (8) is divided into a plurality of chambers by the interception plate (25), and the stirrer (9) and the inclined plate sedimentation tank (10) are respectively arranged in different chambers; the water inlet pipeline of the reaction tank is provided with a first sampling port (26).
7. The premixed scaling oilfield produced water treatment device of claim 1, wherein: the adjusting unit comprises a pH adjusting tank (12), an intermediate water tank (13), an intermediate water pump (14) and an online pH detector (27); the input end of the lower part of the pH adjusting tank (12) is connected with the output end of the flocculation and sedimentation unit, the output end of the upper part of the pH adjusting tank (12) is connected with the intermediate water tank (13), the bottom in the intermediate water tank (13) is connected with the intermediate water pump (14), and the side wall of the bottom of the intermediate water tank (13) is provided with a water outlet; the output end of the intermediate water pump (14) is connected with the filtering unit, and a second sampling port (28) is arranged on a pipeline connecting the output end of the intermediate water pump (14) with the filtering unit; the pH adjusting tank (12) is arranged higher than the intermediate water tank (13); the bottom of the pH adjusting tank (12) is connected with a second water outlet (22); the online pH detector (27) is connected to the upper surface of the pH adjusting tank (12), and a probe of the online pH detector (27) extends into the intermediate water tank (13); the upper surface of the pH adjusting tank (12) is also connected with a stirrer; the intermediate water pump (14), the stirrer and the online pH detector (27) are connected with the control unit through wires.
8. The premixed scaling oilfield produced water treatment device of claim 1, wherein: the filtering unit comprises a primary filter (15) and a secondary filter (16); the primary filter (15) is provided with an input port and three output ports, the input port is connected with the output end of the adjusting unit, and an overrunning bypass pipe (19) is arranged between the input port of the primary filter (15) and the clean water unit; three output ports of the primary filter (15) are respectively connected with the secondary filter (16), the clear water unit and the second water outlet (22); the input end of the secondary filter (16) is provided with an input port and two output ports, the input port of the secondary filter (16) is connected with the primary filter (15), and the two output ports of the secondary filter (16) are respectively connected with the clean water unit and the second water outlet (22).
9. The premixed scaling oilfield produced water treatment device of claim 1, wherein: the clean water unit comprises a clean water tank (17) and a backwashing water pump (18); the backwashing water pump (18) is connected to the bottom in the clean water tank (17); a third water outlet (23) is arranged on the side wall of the bottom of the clean water tank (17); the backwashing water pump (18) is connected with the control unit through a wire.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920787234.3U CN210419526U (en) | 2019-05-29 | 2019-05-29 | Premixing scaling oilfield produced water treatment device |
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| CN201920787234.3U CN210419526U (en) | 2019-05-29 | 2019-05-29 | Premixing scaling oilfield produced water treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127900A (en) * | 2019-05-29 | 2019-08-16 | 西安长庆科技工程有限责任公司 | A kind of oil field produced water treatment facilities of premix fouling and method |
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2019
- 2019-05-29 CN CN201920787234.3U patent/CN210419526U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127900A (en) * | 2019-05-29 | 2019-08-16 | 西安长庆科技工程有限责任公司 | A kind of oil field produced water treatment facilities of premix fouling and method |
| CN110127900B (en) * | 2019-05-29 | 2024-03-19 | 西安长庆科技工程有限责任公司 | Device and method for treating produced water of premixed scaling oil field |
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