CN109758958A - Aqueous solutions of polymers device for formulating and method for polymer flooding - Google Patents
Aqueous solutions of polymers device for formulating and method for polymer flooding Download PDFInfo
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- CN109758958A CN109758958A CN201811081437.7A CN201811081437A CN109758958A CN 109758958 A CN109758958 A CN 109758958A CN 201811081437 A CN201811081437 A CN 201811081437A CN 109758958 A CN109758958 A CN 109758958A
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Abstract
The invention discloses a kind of aqueous solutions of polymers device for formulating and method for polymer flooding, belong to technology of reservoir sweep field.The device includes: feed mechanism, material storage mechanism, lower powder control mechanism, mixing jetting mechanism, decentralized institution, curing mechanism, conveying mechanism, injecting mechanism, viscosity measurements mechanism, control unit；Feed mechanism is used to convey polymer dry powder to material storage mechanism；The outlet of lower powder control mechanism entrance and material storage mechanism, the outlet of lower powder control mechanism are connected to by pipeline with mixing jetting mechanism first entrance, and mixing jetting mechanism second entrance is connected to the first waterline；The outlet of mixing jetting mechanism is sequentially connected to decentralized institution, curing mechanism, conveying mechanism, injecting mechanism, target well head by pipeline；Viscosity measurements mechanism is used to detect the viscosity of injecting mechanism output aqueous solutions of polymers；Control unit is electrically connected with lower powder control mechanism and viscosity measurements mechanism.The apparatus structure is simple, can adjust the viscosity of aqueous solutions of polymers.
Description
Technical field
The present invention relates to technology of reservoir sweep field, in particular to a kind of aqueous solutions of polymers device for formulating for polymer flooding
And method.
Background technique
Polymer flooding refers to: aqueous solutions of polymers is formed after the medicaments such as polymer oil-displacing agent are dissolved in oil well produced water,
And oil reservoir is injected, since aqueous solutions of polymers has certain viscosity, it is able to drive involved crude oil flow, and then improve former
The recovery ratio of oil.As it can be seen that can the viscosity of aqueous solutions of polymers particularly significant for the recovery ratio that improve crude oil.Therefore, having must
A kind of device or method of aqueous solutions of polymers that can prepare suitable viscosity are provided.
In the related technology, the powder dropping amount and watering quantity of polymer dry powder are calculated according to required implantation concentration, and set phase
The lower powder speed and water mixing speed answered, the aqueous solutions of polymers of implantation concentration needed for being formed after mixed.Also, it calculates and mixed mistake
The simulated experiment of Cheng Junwei indoors, water are deionized water.
Inventor find the relevant technologies the prior art has at least the following problems:
Due in practical applications, oil well produced water and polymer dry powder being mixed to get aqueous solutions of polymers, also, oil
Contain impurity in well recovered water, will affect the viscosity of aqueous solutions of polymers, and then not can control the viscosity of aqueous solutions of polymers, shadow
Ring polymer flooding effect.
Summary of the invention
The embodiment of the invention provides a kind of aqueous solutions of polymers device for formulating and method for polymer flooding, can solve
Above-mentioned technical problem.Specific technical solution is as follows:
On the one hand, described the embodiment of the invention provides a kind of aqueous solutions of polymers device for formulating for polymer flooding
Aqueous solutions of polymers device for formulating includes: feed mechanism, material storage mechanism, lower powder control mechanism, mixing jetting mechanism, dispersion machine
Structure, curing mechanism, conveying mechanism, injecting mechanism, viscosity measurements mechanism, control unit, the first motor-driven valve；
The feed mechanism is used to convey polymer dry powder to the material storage mechanism；
The entrance of the lower powder control mechanism and the outlet of the material storage mechanism, the outlet of the lower powder control mechanism
It is connected to by pipeline with the first entrance of the mixing jetting mechanism, the second entrance and the first water delivery of the mixing jetting mechanism
Pipeline connection；
The outlet of the mixing jetting mechanism by pipeline sequentially with the decentralized institution, the curing mechanism, described defeated
Send mechanism, the injecting mechanism, the connection of target well head；
Pipeline between the conveying mechanism and the injecting mechanism is also connected to the second waterline, and described first is electronic
Valve is located on second waterline；
The viscosity measurements mechanism is used to detect the viscosity of the aqueous solutions of polymers of the injecting mechanism output；
Described control unit and the lower powder control mechanism, the viscosity measurements mechanism and first motor-driven valve electricity
Connection.
In a kind of possible design, the feed mechanism includes: loading hopper, feeding pipeline, feeding pump；
The loading hopper, the feeding pipeline, the feeding pump are sequentially connected to, and the feeding pump is set to the storing
The top of mechanism.
In a kind of possible design, the mixing jetting mechanism is venturi-type eductors.
In a kind of possible design, the curing mechanism includes three storage tanks being sequentially connected to by pipeline, and described
Blender is provided in storage tank.
In a kind of possible design, the decentralized institution is dispersion pump；
The conveying mechanism is feeding pump；
The injecting mechanism is the polymer-injecting pump of frequency conversion.
In a kind of possible design, the aqueous solutions of polymers device for formulating further include: three the second motor-driven valves；
The entrance and exit of the viscosity measurements mechanism passes through the first pipeline respectively and the second pipeline is connected to the injection
On pipeline between mechanism and the target well head；
Three second motor-driven valves be respectively arranged at first pipeline, second pipeline, first pipeline and
On pipeline between second pipeline.
In a kind of possible design, the aqueous solutions of polymers device for formulating further include: ball-and-seat, the ball-and-seat are set
It is placed on the pipeline between the decentralized institution and the curing mechanism.
In a kind of possible design, the aqueous solutions of polymers device for formulating further include: pressure gauge, third motor-driven valve,
First flowmeter；
The third motor-driven valve, the pressure gauge, the first flowmeter are sequentially arranged on first waterline,
And the third motor-driven valve is nearest apart from the mixing jetting mechanism.
In a kind of possible design, the aqueous solutions of polymers device for formulating further include: second flowmeter and third stream
Meter；
The second flowmeter is set on second waterline；
The third flowmeter is set on the pipeline between the injecting mechanism and the target well head.
On the other hand, the embodiment of the invention also provides a kind of preparation sides of aqueous solutions of polymers for polymer flooding
Method, the preparation method use the above-mentioned any aqueous solutions of polymers device for formulating referred to, and the preparation method includes:
Polymer dry powder is conveyed to material storage mechanism by feed mechanism；
It is exported by the material storage mechanism to the described of mixing jetting mechanism first entrance and is gathered by the control of lower powder control mechanism
Close the amount of object dry powder；
Water is inputted to the second entrance of the mixing jetting mechanism by the first waterline；
The polymer dry powder and water are mixed and are sprayed onto decentralized institution by the mixing jetting mechanism and is dispersed, is obtained
To dispersion；
The dispersion is conveyed to curing mechanism by the decentralized institution；
The dispersion is cured by the curing mechanism, obtains aqueous solutions of polymers；
The aqueous solutions of polymers is delivered to the injecting mechanism by the curing mechanism by conveying mechanism；
Water is inputted to the pipeline between the conveying mechanism and the injecting mechanism by the second waterline；
By the viscosity for the aqueous solutions of polymers that the detection of viscosity measurements mechanism is exported by the injecting mechanism, and will inspection
It surveys result and is sent to control unit；
Described control unit controls the lower powder according to the default viscosity of the testing result and the aqueous solutions of polymers
Control mechanism adjustment is exported the amount of the polymer dry powder to the mixing jetting mechanism by the material storage mechanism, and described
Control unit controls the aperture of first motor-driven valve.
In a kind of possible design, described control unit is pre- according to the testing result and the aqueous solutions of polymers
If viscosity, controls the lower powder control mechanism adjustment and exported by the material storage mechanism to the polymerization of the mixing jetting mechanism
The amount of object dry powder, comprising:
Described control unit calculates presently described according to the default viscosity of the testing result and the aqueous solutions of polymers
The difference of the viscosity of aqueous solutions of polymers and default viscosity:
If not within a preset range, the described control unit control lower powder control mechanism adjustment is by described for the difference
Material storage mechanism is exported to the amount of the polymer dry powder of mixing jetting mechanism, until the difference is in the preset range.
In a kind of possible design, the detection frequency of the viscosity measurements mechanism is secondary/2~4h；
The preset range is -5~5Pas.
Technical solution bring beneficial effect provided in an embodiment of the present invention includes at least:
Aqueous solutions of polymers device for formulating provided in an embodiment of the present invention for polymer flooding, it is single by setting control
Member and the viscosity measurements mechanism being electrically connected with control unit and lower powder control mechanism, control unit is according to viscosity measurements mechanism
The viscosity of the aqueous solutions of polymers of detection and default viscosity control the amount of the polymer dry powder of lower powder control mechanism adjustment output,
Control unit also controls the aperture of the first motor-driven valve, adjusts the water of output, and then it is poly- to meet the viscosity of aqueous solutions of polymers
Note condition.The structure of the aqueous solutions of polymers device for formulating is simple, can adjust the viscosity of aqueous solutions of polymers, guarantees production effect
Fruit avoids the waste of polymer.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural representation of the aqueous solutions of polymers device for formulating provided in an embodiment of the present invention for polymer flooding
Figure；
Fig. 2 is the method flow of the preparation method of the aqueous solutions of polymers provided in an embodiment of the present invention for polymer flooding
Figure.
Wherein, appended drawing reference respectively indicates:
1- feed mechanism, 101- loading hopper, 102- feeding pipeline, 103- feeding pump,
2- material storage mechanism,
Powder control mechanism under 3-,
4- mixing jetting mechanism,
5- decentralized institution,
6- cures mechanism,
7- conveying mechanism,
8- injecting mechanism,
9- viscosity measurements mechanism,
10- control unit,
The first motor-driven valve of 11-,
The second motor-driven valve of 12-,
The first pipeline of 13-,
The second pipeline of 14-,
15- ball-and-seat,
16- pressure gauge,
17- third motor-driven valve,
18- first flowmeter,
19- second flowmeter,
20- third flowmeter,
M- target well head.
Specific embodiment
Unless otherwise defined, all technical terms used in the embodiment of the present invention all have usual with those skilled in the art
The identical meaning understood.
It should be noted that the preparation quality of water variation of aqueous solutions of polymers can produce the viscosity of aqueous solutions of polymers
Raw larger impact.For example, as the Fe in preparation water2+After ion concentration is more than 0.2mg/L, aqueous solutions of polymers will cause
Degradation, decline the viscosity of aqueous solutions of polymers rapidly, influence polymer flooding effect.For this purpose, the present invention provides a kind of use
In the aqueous solutions of polymers device for formulating and method of polymer flooding.
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
On the one hand, the embodiment of the invention provides a kind of aqueous solutions of polymers device for formulating for polymer flooding, such as attached
Shown in Fig. 1, which includes: feed mechanism 1, material storage mechanism 2, lower powder control mechanism 3, mixing jetting
Mechanism 4, decentralized institution 5, curing mechanism 6, conveying mechanism 7, injecting mechanism 8, viscosity measurements mechanism 9, the 10, first electricity of control unit
Dynamic valve 11.Feed mechanism 1 is used to convey polymer dry powder to material storage mechanism 2；The entrance and material storage mechanism 2 of lower powder control mechanism 3
Outlet, the outlet of lower powder control mechanism 3 is connected to by pipeline with the first entrance of mixing jetting mechanism 4, mixing jetting
The second entrance of mechanism 4 is connected to the first waterline；The outlet of mixing jetting mechanism 4 by pipeline sequentially with decentralized institution 5,
Cure mechanism 6, conveying mechanism 7, injecting mechanism 8, target well head M connection；Pipeline between conveying mechanism 7 and injecting mechanism 8 is also
It is connected to the second waterline, the first motor-driven valve 11 is located on the second waterline；Viscosity measurements mechanism 9 is for detecting implanter
The viscosity for the aqueous solutions of polymers that structure 8 exports；Control unit 10 and lower powder control mechanism 3, viscosity measurements mechanism 9 and the first electricity
Dynamic valve 11 is electrically connected.
In embodiments of the present invention, the first waterline and the second waterline convey oil well produced water.
Below with regard to the working principle of the aqueous solutions of polymers device for formulating provided in an embodiment of the present invention for polymer flooding
It is described:
Polymer dry powder is conveyed to material storage mechanism 2 by feed mechanism 1, is controlled by lower powder control mechanism 3 by storage machine
Structure 2 is exported to the amount of the polymer dry powder of 4 first entrance of mixing jetting mechanism, by the first waterline to mixing jetting mechanism
4 second entrance inputs water, mixes polymer dry powder and water by mixing jetting mechanism 4 and is sprayed onto decentralized institution 5 and is divided
It dissipates, obtains dispersion, dispersion is conveyed to curing mechanism 6 by decentralized institution 5, dispersion is carried out by curing mechanism 6 ripe
Change, obtain aqueous solutions of polymers, aqueous solutions of polymers is delivered to by curing mechanism 6 by injecting mechanism 8 by conveying mechanism 7, leads to
It crosses viscosity measurements mechanism 9 and detects the viscosity of the aqueous solutions of polymers exported by injecting mechanism 8, and will test result and be sent to control
Unit 10, control unit 10 according to testing result with the default viscosity of aqueous solutions of polymers, control the lower adjustment of powder control mechanism 3 by
Material storage mechanism 2 is exported to the amount of the polymer dry powder of mixing jetting mechanism 4.Control unit 10 is according to testing result and polymer water
The default viscosity of solution, also controls the aperture of the first motor-driven valve 11, and adjustment is exported by the first motor-driven valve 11 and the second waterline
Water, and then change the viscosity of aqueous solutions of polymers exported by injecting mechanism 8.
Aqueous solutions of polymers device for formulating provided in an embodiment of the present invention for polymer flooding, by the way that control unit is arranged
10 and the viscosity measurements mechanism 9 being electrically connected with control unit 10 and lower powder control mechanism 3, control unit 10 is examined according to viscosity
The viscosity and default viscosity of the aqueous solutions of polymers that mechanism 9 detects are surveyed, the polymer for controlling the lower adjustment output of powder control mechanism 3 is dry
The amount of powder, control unit 10 also controls the aperture of the first motor-driven valve 11, adjusts the water of output, and then makes aqueous solutions of polymers
Viscosity meets poly- note condition.Polymer dry powder is conveyed into material storage mechanism 2 by feed mechanism 1, and makes the outlet of material storage mechanism 2
It is connected to the entrance of lower powder control mechanism 3, convenient for the polymer dry powder amount of lower powder control mechanism 3 control output.It is mixed by being arranged
Injection equipment 4 is closed, is uniformly mixed conducive to by polymer dry powder and water.By the way that decentralized institution 5 is arranged, polymer dry powder is avoided
Reunite, is conducive to polymer dry powder and water is uniformly mixed, and convey aqueous solutions of polymers.Mechanism 6 is cured by setting, conducive to that will gather
Object aqueous solution is closed to be uniformly mixed again.By setting conveying mechanism 7 and injecting mechanism 8, it is delivered to conducive to by aqueous solutions of polymers
Target well head M.To sum up, the structure of the aqueous solutions of polymers device for formulating is simple, can adjust the viscosity of aqueous solutions of polymers, protects
Production effect is demonstrate,proved, the waste of polymer is avoided.
In view of that can facilitate operator at a distance to polymer dry powder on material storage mechanism 2, as shown in Fig. 1, feeder
Structure 1 includes: loading hopper 101, feeding pipeline 102, feeding pump 103；Loading hopper 101, feeding pipeline 102, feeding pump 103 sequentially connect
It is logical, and feeding pump 103 is set to the top of material storage mechanism 2.
It is understood that the outlet of feeding pump 103 is connected to the inner cavity of material storage mechanism 2, in order into material storage mechanism 2
Input polymer dry powder.
Storage is delivered to by the way that polymer dry powder is added in loading hopper 101, and by feeding pipeline 102 and feeding pump 103
Expect mechanism 2.Wherein, feeding pipeline 102 provides transport path for polymer dry powder, and feeding pump 103 provides fortune for polymer dry powder
Defeated power.
In view of polymer dry powder and water energy are enough uniformly mixed in mixing jetting mechanism 4, and it is less prone to reunion, at this
In inventive embodiments, mixing jetting mechanism 4 is venturi-type eductors.
Wherein, venturi-type eductors are aspirated using suction is generated when flowing through injector by the positive pressure air that air blower generates
It walks to be located at the material above injector, is allowed to convey powder, particle and loose unpacked material in positive pressure pneumatic power transportation system.
Above-mentioned to refer to, curing mechanism 6 plays curing effect for being further uniformly mixed aqueous solutions of polymers.Curing
Mechanism 6 can be set to various structures, based on structure it is simple, be uniformly mixed and curing effect it is good under the premise of, provide following
Example:
Curing mechanism 6 includes three storage tanks being sequentially connected to by pipeline, and blender is provided in storage tank.
It is understood that a storage tank in three storage tanks positioned at end is connected to by pipeline with decentralized institution 5, it is located at
Another storage tank of end is connected to by pipeline with injecting mechanism 8.
When aqueous solutions of polymers flows through three storage tanks, blender is stirred, to guarantee the uniform of aqueous solutions of polymers.
Also, storage tank also provides section store space for aqueous solutions of polymers, guarantees to be interrupted when later period injection.
Since aqueous solutions of polymers has certain viscosity, poor fluidity, in order to guarantee that aqueous solutions of polymers can be unobstructed
Ground flowing, and guarantee the uniformity of aqueous solutions of polymers, in embodiments of the present invention, decentralized institution 5 can be dispersion pump；It is defeated
Sending mechanism 7 can be feeding pump；Injecting mechanism 8 can be the polymer-injecting pump of frequency conversion.
It sets injecting mechanism 8 to the polymer-injecting pump of frequency conversion, can guarantee the constant of injection rate.
The viscosity of aqueous solutions of polymers is detected in order to facilitate viscosity measurements mechanism 9, and makes aqueous solutions of polymers injection well
It is interior, as shown in Fig. 1, aqueous solutions of polymers device for formulating provided in an embodiment of the present invention further include: three the second motor-driven valves 12；
The entrance and exit of viscosity measurements mechanism 9 passes through the first pipeline 13 respectively and the second pipeline 14 is connected to injecting mechanism 8 and target
On pipeline between well head M；Three the second motor-driven valves 12 are respectively arranged at the first pipeline 13, the second pipeline 14, the first pipeline 13
And on the second pipeline between pipeline 14.
When the second motor-driven valve 12 closing on the pipeline being set between injecting mechanism 8 and target well head M, it is set to the first pipe
When the second motor-driven valve 12 on line 13 and the second pipeline 14 is opened, the aqueous solutions of polymers exported by injecting mechanism 8 is via first
Pipeline 13 enters in viscosity measurements mechanism 9, and the viscosity of aqueous solutions of polymers is detected conducive to viscosity measurements mechanism 9.To viscosity measurements
After mechanism 9 has detected, aqueous solutions of polymers is input to target well head M by the second pipeline 14, does not influence the note of aqueous solutions of polymers
Enter.When the second motor-driven valve 12 opening on the pipeline being set between injecting mechanism 8 and target well head M, it is set to the first pipeline
13 and second the second motor-driven valve 12 on pipeline 14 when closing, aqueous solutions of polymers does not enter viscosity measurements mechanism 9, is directly entered
Target well head M.Viscosity measurements mechanism 9 is without viscosity measurements.
So set, can guarantee that injection of polymer aqueous solution is uninterrupted into target well head M, and it is possible to discontinuity
Ground detects the viscosity of aqueous solutions of polymers, along the service life of long viscosity measurements mechanism 9.
In order to avoid aqueous solutions of polymers occurs to block and adverse current during transportation, as shown in Fig. 1, the present invention is implemented
The aqueous solutions of polymers device for formulating that example provides further include: ball-and-seat 15, ball-and-seat 15 are set to decentralized institution 5 and curing mechanism
On pipeline between 6.
It is understood that being connected by decentralized institution 5 to the path between curing mechanism 6, by curing mechanism 6 to dispersion machine
Path between structure 5 is closed.
In view of can easily control the water inputted to mixing jetting mechanism 4, as shown in Fig. 1, the present invention is implemented
The aqueous solutions of polymers device for formulating that example provides further include: pressure gauge 16, third motor-driven valve 17, first flowmeter 18；Third electricity
Dynamic valve 17, pressure gauge 16, first flowmeter 18 are sequentially arranged on the first waterline, and third motor-driven valve 17 is sprayed apart from mixing
It is nearest to penetrate mechanism 4.
The pressure that input water can be observed by pressure gauge 16 can measure the stream of input water by first flowmeter 18
Amount.By opening or closing for third motor-driven valve 17, can control in the no input mixing jetting mechanism 4 of water energy.
It is opened or closed in view of can easily control the second motor-driven valve 12 and third motor-driven valve 17, the second motor-driven valve 12
It can be electrically connected with control unit 10 with third motor-driven valve 17.Alternatively, other controllers are separately provided, make the second motor-driven valve 12
It is electrically connected with the controller with third motor-driven valve 17, in order to be opened by controller the second motor-driven valve 12 of control and third motor-driven valve 17
It opens or closes.
As shown in Fig. 1, aqueous solutions of polymers device for formulating provided in an embodiment of the present invention further include: second flowmeter 19
With third flowmeter 20；Second flowmeter 19 is set on the second waterline；Third flowmeter 20 be set to injecting mechanism 8 with
On pipeline between target well head M.
The water in the pipeline being input between conveying mechanism 7 and injecting mechanism 8 can be observed by second flowmeter 19
Flow.The flow of the aqueous solutions of polymers by the output of injecting mechanism 8 to target well head M can be observed by third flowmeter 20.
As an example, lower powder control mechanism 3 can be lower powder controller.It can control lower powder by control unit 10
The aperture of the outlet of controller, and then control the polymer dry powder amount of output.
Control unit 10 can be PLC (Programmable Logic Controller, programmable logic controller (PLC)),
For the digital logic controller of automation control, control instruction can be loaded to memory storage at any time and executed.
On the other hand, the embodiment of the invention provides a kind of preparation method of aqueous solutions of polymers for polymer flooding,
The preparation method uses the above-mentioned any aqueous solutions of polymers device for formulating referred to, as shown in Fig. 2, the preparation method packet
It includes:
Step 101 conveys polymer dry powder to material storage mechanism 2 by feed mechanism 1.
Step 102 is exported by material storage mechanism 2 to 4 first entrance of mixing jetting mechanism by the control of lower powder control mechanism 3
The amount of polymer dry powder.
Step 103 inputs water to the second entrance of mixing jetting mechanism 4 by the first waterline.
Polymer dry powder and water are mixed by mixing jetting mechanism 4 and are sprayed onto decentralized institution 5 and dispersed by step 104,
Obtain dispersion.
Step 105 conveys dispersion to curing mechanism 6 by decentralized institution 5.
Step 106 cures dispersion by curing mechanism 6, obtains aqueous solutions of polymers.
Aqueous solutions of polymers is delivered to injecting mechanism 8 by curing mechanism 6 by conveying mechanism 7 by step 107.
Step 108 inputs water to the pipeline between conveying mechanism 7 and injecting mechanism 8 by the second waterline.
Step 109, the viscosity that the aqueous solutions of polymers exported by injecting mechanism 8 is detected by viscosity measurements mechanism 9, and will
Testing result is sent to control unit 10.
Step 110, control unit 10 with the default viscosity of aqueous solutions of polymers, control lower powder and control machine according to testing result
The adjustment of structure 3 is exported by material storage mechanism 2 to the amount of the polymer dry powder of mixing jetting mechanism 4, and the control of control unit 10 first
The aperture of motor-driven valve 11.
The preparation method of aqueous solutions of polymers provided in an embodiment of the present invention for polymer flooding, passes through feed mechanism 1
Polymer dry powder is conveyed to material storage mechanism 2, by the control of lower powder control mechanism 3 by the output of material storage mechanism 2 to mixing jetting mechanism 4
The amount of the polymer dry powder of first entrance inputs water to the second entrance of mixing jetting mechanism 4 by the first waterline, passes through
Polymer dry powder and water are mixed and be sprayed onto decentralized institution 5 by mixing jetting mechanism 4 to be dispersed, and is obtained dispersion, is passed through dispersion
Mechanism 5 conveys dispersion to curing mechanism 6, is cured by curing mechanism 6 to dispersion, obtains aqueous solutions of polymers, led to
It crosses conveying mechanism 7 and aqueous solutions of polymers is delivered to injecting mechanism 8 by curing mechanism 6, by the second waterline to conveyer
Pipeline between structure 7 and injecting mechanism 8 inputs water, detects the polymer water exported by injecting mechanism 8 by viscosity measurements mechanism 9
The viscosity of solution, and will test result and be sent to control unit 10, control unit 10 is according to testing result and aqueous solutions of polymers
Default viscosity, control the lower adjustment of powder control mechanism 3 by the polymer dry powder of the output of material storage mechanism 2 to mixing jetting mechanism 4
Amount, and control unit 10 controls the aperture of the first motor-driven valve 11.As it can be seen that the aqueous solutions of polymers preparation method is simple, it can
The viscosity of aqueous solutions of polymers is adjusted, guarantees production effect, avoids the waste of polymer.
As an example, step 109, control unit 10 according to testing result with the default viscosity of aqueous solutions of polymers,
The lower adjustment of powder control mechanism 3 is controlled to be exported by material storage mechanism 2 to the amount of the polymer dry powder of mixing jetting mechanism 4, comprising:
Control unit 10 with the default viscosity of aqueous solutions of polymers, calculates present polymer aqueous solution according to testing result
The difference of viscosity and default viscosity:
If not within a preset range, control unit 10 controls the lower adjustment of powder control mechanism 3 and is exported by material storage mechanism 2 difference
To the amount of the polymer dry powder of mixing jetting mechanism 4, until difference is within a preset range.
It is understood that testing result refers to aqueous solutions of polymers detected by current viscosity measurements mechanism 9
Viscosity.
So set, the lower adjustment of powder control mechanism 3 can be accurately controlled by the output of material storage mechanism 2 to mixing jetting mechanism
The amount of 4 polymer dry powder, so that the viscosity of aqueous solutions of polymers can satisfy the requirement of poly- note.
In view of being able to extend the service life of viscosity measurements mechanism 9, the frequency of use of viscosity measurements mechanism 9 is reduced, and
And do not influence its viscosity for detecting aqueous solutions of polymers.In embodiments of the present invention, the detection frequency of viscosity measurements mechanism 9 is
Secondary/2~4h, such as can be secondary/2h, secondary/3h, secondary 4h etc..
In view of can accurately be confirmed whether to need to control the polymer dry powder of the lower adjustment output of powder control mechanism 3
Amount, can set preset range to -5~5Pas, for example, can for -5Pas, -4Pas, -3Pas, -2Pas, -
1Pas, 0Pas, 1Pas, 2Pas, 3Pas, 4Pas, 5Pas etc..
All the above alternatives can form the alternative embodiment of the disclosure, herein no longer using any combination
It repeats one by one.
The foregoing is merely illustrative embodiments of the invention, the protection scope being not intended to limit the invention is all at this
Within the spirit and principle of invention, any modification, equivalent replacement, improvement and so on should be included in protection model of the invention
Within enclosing.
Claims (12)
1. a kind of aqueous solutions of polymers device for formulating for polymer flooding, which is characterized in that the aqueous solutions of polymers is prepared
Device include: feed mechanism (1), material storage mechanism (2), lower powder control mechanism (3), mixing jetting mechanism (4), decentralized institution (5),
Cure mechanism (6), conveying mechanism (7), injecting mechanism (8), viscosity measurements mechanism (9), control unit (10), the first motor-driven valve
(11)；
The feed mechanism (1) is used to convey polymer dry powder to the material storage mechanism (2)；
The entrance of the lower powder control mechanism (3) and the outlet of the material storage mechanism (2), the lower powder control mechanism (3)
Outlet be connected to the first entrance of the mixing jetting mechanism (4) by pipeline, the second of the mixing jetting mechanism (4) enters
Mouth is connected to the first waterline；
The outlet of the mixing jetting mechanism (4) by pipeline sequentially with the decentralized institution (5), the curing mechanism (6), institute
State conveying mechanism (7), the injecting mechanism (8), target well head (M) connection；
Pipeline between the conveying mechanism (7) and the injecting mechanism (8) is also connected to the second waterline, first electricity
Dynamic valve (11) are located on second waterline；
The viscosity measurements mechanism (9) is used to detect the viscosity of the aqueous solutions of polymers of the injecting mechanism (8) output；
Described control unit (10) and the lower powder control mechanism (3), the viscosity measurements mechanism (9) and first electricity
Dynamic valve (11) electrical connection.
2. aqueous solutions of polymers device for formulating according to claim 1, which is characterized in that the feed mechanism (1) includes:
Loading hopper (101), feeding pipeline (102), feeding pump (103)；
The loading hopper (101), the feeding pipeline (102), the feeding pump (103) are sequentially connected to, and the feeding pump
(103) it is set to the top of the material storage mechanism (2).
3. aqueous solutions of polymers device for formulating according to claim 1, which is characterized in that the mixing jetting mechanism (4)
For venturi-type eductors.
4. aqueous solutions of polymers device for formulating according to claim 1, which is characterized in that the curing mechanism (6) includes
Three storage tanks being sequentially connected to by pipeline, and blender is provided in the storage tank.
5. aqueous solutions of polymers device for formulating according to claim 1, which is characterized in that the decentralized institution (5) is point
Dissipate pump；
The conveying mechanism (7) is feeding pump；
The injecting mechanism (8) is the polymer-injecting pump of frequency conversion.
6. described in any item aqueous solutions of polymers device for formulating according to claim 1~5, which is characterized in that the polymer
Aqueous solution device for formulating further include: three the second motor-driven valves (12)；
The entrance and exit of the viscosity measurements mechanism (9) passes through the first pipeline (13) respectively and the second pipeline (14) is connected to institute
It states on the pipeline between injecting mechanism (8) and the target well head (M)；
Three second motor-driven valves (12) are respectively arranged at first pipeline (13), second pipeline (14), described
On pipeline between one pipeline (13) and second pipeline (14).
7. described in any item aqueous solutions of polymers device for formulating according to claim 1~5, which is characterized in that the polymer
Aqueous solution device for formulating further include: ball-and-seat (15), the ball-and-seat (15) are set to the decentralized institution (5) and the curing
On pipeline between mechanism (6).
8. described in any item aqueous solutions of polymers device for formulating according to claim 1~5, which is characterized in that the polymer
Aqueous solution device for formulating further include: pressure gauge (16), third motor-driven valve (17), first flowmeter (18)；
The third motor-driven valve (17), the pressure gauge (16), the first flowmeter (18) are sequentially arranged defeated in described first
On water pipeline, and the third motor-driven valve (17) is nearest apart from the mixing jetting mechanism (4).
9. described in any item aqueous solutions of polymers device for formulating according to claim 1~5, which is characterized in that the polymer
Aqueous solution device for formulating further include: second flowmeter (19) and third flowmeter (20)；
The second flowmeter (19) is set on second waterline；
The third flowmeter (20) is set on the pipeline between the injecting mechanism (8) and the target well head (M).
10. a kind of preparation method of the aqueous solutions of polymers for polymer flooding, which is characterized in that the preparation method is using power
Benefit requires any one of 1~9 aqueous solutions of polymers device for formulating provided, and the preparation method includes:
Polymer dry powder is conveyed to material storage mechanism (2) by feed mechanism (1)；
By the control of lower powder control mechanism (3) by the institute of the material storage mechanism (2) output to mixing jetting mechanism (4) first entrance
State the amount of polymer dry powder；
Water is inputted to the second entrance of the mixing jetting mechanism (4) by the first waterline；
The polymer dry powder and water are mixed by the mixing jetting mechanism (4) and are sprayed onto decentralized institution (5) and is dispersed,
Obtain dispersion；
The dispersion is conveyed to curing mechanism (6) by the decentralized institution (5)；
The dispersion is cured by the curing mechanism (6), obtains aqueous solutions of polymers；
The aqueous solutions of polymers is delivered to the injecting mechanism (8) by the curing mechanism (6) by conveying mechanism (7)；
Water is inputted to the pipeline between the conveying mechanism (7) and the injecting mechanism (8) by the second waterline；
By the viscosity for the aqueous solutions of polymers that viscosity measurements mechanism (9) detection is exported by the injecting mechanism (8), and will
Testing result is sent to control unit (10)；
Described control unit (10) controls the lower powder according to the default viscosity of the testing result and the aqueous solutions of polymers
Control mechanism (3) adjustment is exported by the material storage mechanism (2) to the polymer dry powder of the mixing jetting mechanism (4)
Amount, and described control unit (10) controls the aperture of first motor-driven valve (11).
11. the preparation method of the aqueous solutions of polymers according to claim 10 for polymer flooding, which is characterized in that institute
Control unit (10) is stated according to the default viscosity of the testing result and the aqueous solutions of polymers, the lower powder is controlled and controls machine
Structure (3) adjustment is exported by the material storage mechanism (2) to the amount of the polymer dry powder of the mixing jetting mechanism (4), comprising:
Described control unit (10) calculates presently described according to the default viscosity of the testing result and the aqueous solutions of polymers
The difference of the viscosity of aqueous solutions of polymers and the default viscosity:
If the difference is not within a preset range, described control unit (10) control lower powder control mechanism (3) adjustment by
The amount of the polymer dry powder of material storage mechanism (2) output to mixing jetting mechanism (4), until the difference is described pre-
If in range.
12. the preparation method of the aqueous solutions of polymers according to claim 11 for polymer flooding, which is characterized in that institute
The detection frequency for stating viscosity measurements mechanism (9) is secondary/2~4h；
The preset range is -5~5Pas.
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Application publication date: 20190517 |