Gas-liquid medicine mixed nanobubble preparation device for water injection

Abstract

The invention relates to the technical field of oil field micro-nano preparation, and particularly discloses a gas-liquid-medicine mixed nanobubble preparation device for water injection, which is characterized in that a bracket is arranged at the central position of a shell; the nitrogen preparation mechanism is arranged at one end of the shell; the high-pressure water injection mechanism comprises a water injector, a high-pressure pump and two filtering modules; the liquid medicine mechanism comprises a medicine storage tank, a power pump and a one-way electromagnetic valve; the micro-channel mixer is sequentially connected with a high-pressure water injection mechanism and a liquid medicine mechanism; the nano mixing mechanism is used for forming a nano mixed solution from the liquid medicine mixed solution and nitrogen in a micro-nano generator and storing the nano mixed solution in a nano mixing tank; the control terminal is connected with the nitrogen preparation mechanism, the high-pressure water injection mechanism, the liquid medicine mechanism and the nano mixing mechanism. The defects that in the prior art, a nanobubble preparation device is not efficient and concise enough, the maintenance efficiency is low, the fault position cannot be effectively positioned, and safety is insufficient are overcome.

Description

Technical Field

[0001] The present invention relates to the field of oilfield micro-nano preparation, and particularly to a device for preparing gas-water mixed nano-bubbles for water injection. Background Art

[0002] In the middle and late stages of oilfield development, water injection for enhanced oil recovery is the core technology to maintain formation pressure and improve the oil recovery rate (EOR).

[0003] In the prior art, the device for micro-nano preparation usually uses a micro-nano generator for preparation. However, it is difficult for the device for micro-nano preparation to be applicable to the preparation of high-pressure water supply systems, and it is difficult to prepare high-concentration nano-bubbles. Moreover, its preparation efficiency is insufficient and the preparation is incomplete. At the same time, the safety of its preparation system also needs to be improved. When a failure occurs in the preparation system, there is also a lack of a method for quickly locating the fault for maintenance. Summary of the Invention

[0004] (I) Technical Problems to be Solved The problem to be solved by the present invention is to provide a device for preparing gas-water mixed nano-bubbles for water injection to overcome the defects of the existing nano-bubble preparation device being inefficient and not concise enough, the modularized water inlet flow rate range of the nano-generator being wide and adjustable, the maintenance efficiency being low, the failure position not being effectively locatable, and the safety being insufficient.

[0005] (II) Technical Solutions To solve the above technical problems, a first aspect of the present invention provides a device for preparing gas-water mixed nano-bubbles for water injection, including: A housing, with a bracket arranged at the central position of the housing; A nitrogen preparation mechanism, which is arranged at one end of the housing and is used for preparing nitrogen; A high-pressure water injection mechanism, which includes a water injector, a high-pressure pump, and two filter modules. The water injector is arranged at the other end of the housing and is used to provide power for the flow of water. The water injector is connected to the high-pressure pump, and the high-pressure pump is connected in parallel with the two filter modules. The two filter modules are detachably connected to the bracket; A medicine-water mechanism, which includes a medicine storage tank, a power pump, and a one-way solenoid valve. The medicine storage tank is connected to the housing, and the power pump and the one-way solenoid valve are sequentially connected to the medicine storage tank; A microchannel mixer, which is sequentially connected to the high-pressure water injection mechanism and the medicine-water mechanism. The liquid medicine and the water flow are mixed in the microchannel mixer to form a medicine-water mixture. The microchannel mixer is connected to a high-pressure distributor, and the high-pressure distributor is used for distributing the medicine-water mixture; Multiple nano-hybrid mechanisms, where the nano-hybrid mechanism includes a micro-nano generator and a nano-hybrid tank. The micro-nano generator is connected to the nano-hybrid tank. The high-pressure distributor is respectively connected to multiple micro-nano generators through a first pipeline. The micro-nano generator is connected to the nitrogen preparation mechanism. The liquid medicine mixture and nitrogen form a nano-mixture in the micro-nano generator and are stored in the nano-hybrid tank. A control terminal, which is connected to the nitrogen preparation mechanism, the high-pressure water injection mechanism, the liquid medicine mechanism, and the nano-hybrid mechanism.

[0006] For the gas-liquid medicine mixed nano-bubble preparation device for water injection as described above, optionally, the nitrogen preparation mechanism has an air compressor, a refrigerated dryer, and a gas distributor. The air compressor and the refrigerated dryer are connected in sequence for preparing nitrogen. The prepared nitrogen is transported into the gas distributor, and the gas distributor is respectively connected to multiple micro-nano generators through a second pipeline.

[0007] For the gas-liquid medicine mixed nano-bubble preparation device for water injection as described above, optionally, there is a first pressure sensor between the medicine storage tank and the power pump, and a second pressure sensor between the high-pressure pump and the filtration module.

[0008] For the gas-liquid medicine mixed nano-bubble preparation device for water injection as described above, optionally, the nano-hybrid tank outputs the nano-mixture through a third pipeline. A third pressure sensor is provided on the third pipeline. The first pressure sensor, the second pressure sensor, and the third pressure sensor are connected to the control terminal.

[0009] For the gas-liquid medicine mixed nano-bubble preparation device for water injection as described above, optionally, when the control terminal detects data anomalies in the first pressure sensor, the second pressure sensor, and the third pressure sensor, it issues an alarm outward.

[0010] For the gas-liquid medicine mixed nano-bubble preparation device for water injection as described above, optionally, the high-pressure pump and the third pipeline are connected through a fourth pipeline. When data anomalies occur in the control terminal, the high-pressure pump stops, the fourth pipeline opens, and the water flow in the water injection pipeline flows into the third pipeline through the fourth pipeline, and the third pipeline outputs the water flow to the outside.

[0011] For the gas-liquid medicine mixed nano-bubble preparation device for water injection as described above, optionally, the bracket has multiple connection holes, and the bracket is detachably connected to the housing through the connection holes.

[0012] The gas-liquid medicine mixed nano-bubble preparation device for water injection as described above. Optionally, an opening and closing valve is provided on each of the first pipelines, and the opening and closing valve is used to open / close the input of the medicine liquid mixture to each of the nano-mixing mechanisms.

[0013] The gas-liquid medicine mixed nano-bubble preparation device for water injection as described above. Optionally, the filtration module includes a first filter and a second filter. The first filter is used for primary filtration, and the second filter is used for secondary deep filtration.

[0014] (III) Beneficial effects A gas-liquid medicine mixed nano-bubble preparation device for water injection provided by the present invention has the following beneficial effects: In the present invention, the liquid medicine and water flow are mixed by a microchannel mixer to form a medicine liquid mixture, and are mixed with nitrogen in a nano-mixing mechanism to form a nano-mixture. Among them, the first pipeline is connected to a micro-nano generator and a high-pressure distributor, and the second pipeline is connected to a micro-nano generator and a gas distributor. Opening and closing valves are provided on both the high-pressure distributor and the gas distributor, and different gas paths can be controlled through the opening and closing valves. This design realizes the preparation of micro-nano through an efficient and concise design.

[0015] In the present invention, a control terminal is provided. The control terminal is connected to a first pressure sensor, a second pressure sensor, and a third pressure sensor. When data anomalies occur, the location of the fault can be quickly located, and the fourth pipeline is opened, and the water flow can flow out from the fourth pipeline, avoiding affecting other components of the present invention. This design can quickly locate the location of the fault, improve the maintenance efficiency, and ensure the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 The front view of a gas-liquid medicine mixed nano-bubble preparation device for water injection according to the present invention; Figure 2 The top view of a gas-liquid medicine mixed nano-bubble preparation device for water injection according to the present invention; Figure 3 The perspective view of a gas-liquid medicine mixed nano-bubble preparation device for water injection according to the present invention; Figure 4 For Figure 3 The partial schematic view of A in Figure 5 Partial schematic diagram of a device for preparing gas-aqueous mixed nano-bubbles for water injection according to the present invention; Figure 6 is Figure 5 Partial schematic diagram of B in; Figure 7 is Figure 5 Partial schematic diagram of C in.

[0018] The corresponding component names for each reference numeral in the figure are: 1, housing; 11, bracket; 2, nitrogen preparation mechanism; 21, air compressor; 22, refrigerant dryer; 23, gas distributor; 24, second pipeline; 3, high-pressure water injection mechanism; 31, water injector; 32, high-pressure pump; 33, filtration module; 34, first filter; 35, second filter; 4, medicine solution mechanism; 41, medicine storage tank; 42, power pump; 43, one-way solenoid valve; 5, microchannel mixer; 51, high-pressure distributor; 6, nano-mixing mechanism; 61, micro-nano generator; 62, nano-mixing tank; 63, first pipeline; 64, third pipeline; 65, on-off valve. Specific embodiments

[0019] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] The following illustrates the embodiments of the present application through specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of them. The present application can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0021] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is illustrative only. Based on the present application, those skilled in the art should understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects described herein can be used to implement the device and / or practice the method. In addition, this device and / or this method can be implemented using other structures and / or functions in addition to one or more of the aspects described herein.

[0022] It should also be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner. The diagrams only show the components related to the present application, rather than being drawn according to the number, shape, and size of the components in actual implementation. The types, quantities, and proportions of the components in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0023] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the practice can be carried out without these specific details.

[0024] The following describes the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

[0025] Refer to Figures 1 to 7 , the present invention provides a gas-liquid medicine mixed nano-bubble preparation device for water injection, including: a housing 1, a nitrogen preparation mechanism 2, a high-pressure water injection mechanism 3, a medicine solution mechanism 4, a microchannel mixer 5, a nano-mixing mechanism 6, and a control terminal. The nitrogen preparation mechanism 2 is used to prepare nitrogen, the high-pressure water injection mechanism 3 is used to provide high-pressure water, the medicine solution mechanism 4 is used to provide a medicine solution. The medicine solution and the water flow are mixed in the microchannel mixer 5 and input into the nano-mixing mechanism 6. The nano-mixing mechanism 6 forms a medicine solution mixture. The nano-mixing mechanism 6 receives the medicine solution mixture and the nitrogen preparation mechanism 2 and forms a nano-mixture. The control terminal controls the overall process of the present invention. The nano-mixing mechanism 6 can release and use the nano-mixed water.

[0026] In Figures 1 to 7 In an optional embodiment, a bracket 11 is provided at the central position of the housing 1. The bracket 11 has a plurality of connection holes, and the bracket 11 is detachably connected to the housing 1 through the connection holes, improving the convenience of disassembly and assembly of the modularization of the present invention.

[0027] Furthermore, the nitrogen preparation mechanism 2 is provided at one end of the housing 1, and the nitrogen preparation mechanism 2 is used to prepare nitrogen.

[0028] Specifically, the nitrogen preparation mechanism 2 includes an air compressor 21, a cold dryer 22, and a gas distributor 23. The air compressor 21 and the cold dryer 22 are connected in sequence to prepare nitrogen. The prepared nitrogen is transported into the gas distributor 23. The gas distributor 23 is respectively connected to a plurality of micro-nano generators 61 through a second pipeline 24. The air compressor 21 and the cold dryer 22 are used to prepare nitrogen, and the prepared nitrogen is transported to the gas distributor 23. The gas distributor 23 has a plurality of gas paths, and the plurality of gas paths are respectively connected in parallel.

[0029] In Figures 1 to 7In an alternative embodiment, the high-pressure water injection mechanism 3 includes a water injector 31, a high-pressure pump 32, and two filter modules 33. The water injector 31 is disposed at the other end of the housing 1. The water injector 31 is used to provide power for the flow of water. The water injector 31 is connected to the high-pressure pump 32. The high-pressure pump 32 is connected in parallel with the two filter modules 33. The two filter modules 33 are detachably connected to the bracket 11.

[0030] Further, the water injector 31 is used to connect to an external water source and supply water to the present invention. The high-pressure pump 32 can pressurize the water flow to better support subsequent modules. The filter module 33 is used for deep filtration of the water flow, which can ensure the purity of the water flow.

[0031] Further, the filter module 33 includes a first filter 34 and a second filter 35. The first filter 34 is used for primary filtration, and the second filter 35 is used for secondary deep filtration.

[0032] In Figures 1 to 7 In an alternative embodiment, the liquid medicine mechanism 4 includes a medicine storage tank 41, a power pump 42, and a one-way solenoid valve 43. The medicine storage tank 41 is connected to the housing 1. The power pump 42 and the one-way solenoid valve 43 are sequentially connected to the medicine storage tank 41.

[0033] A microchannel mixer 5 is connected to the high-pressure water injection mechanism 3 and the liquid medicine mechanism 4 in sequence. The liquid medicine and the water flow are mixed in the microchannel mixer 5 to form a liquid medicine mixture. The microchannel mixer 5 is connected to a high-pressure distributor 51. The high-pressure distributor 51 is used for distributing the liquid medicine mixture.

[0034] Further, there is a first pressure sensor between the medicine storage tank 41 and the power pump 42, and a second pressure sensor between the high-pressure pump 32 and the filter module 33. The first pressure sensor and the second pressure sensor are used to detect the pressure at the high-pressure water injection mechanism 3 and the liquid medicine mechanism 4.

[0035] In Figures 1 to 7 In an alternative embodiment, the nano-mixing mechanism 6 includes a micro-nano generator 61 and a nano-mixing tank 62. The micro-nano generator 61 is connected to the nano-mixing tank 62. The high-pressure distributor 51 is respectively connected to a plurality of micro-nano generators 61 through a first pipeline 63. The micro-nano generator 61 is connected to the nitrogen preparation mechanism 2. The liquid medicine mixture and nitrogen form a nano-mixture in the micro-nano generator 61 and are stored in the nano-mixing tank 62.

[0036] Further, the nano-mixing tank 62 outputs the nano-mixture outward through a third pipeline 64. A third pressure sensor is disposed on the third pipeline 64. The first pressure sensor, the second pressure sensor, and the third pressure sensor are connected to a control terminal.

[0037] InFigures 1 to 7 In an alternative embodiment, the control terminal is connected to the nitrogen preparation mechanism 2, the high-pressure water injection mechanism 3, the liquid medicine mechanism 4, and the nano-mixing mechanism 6.

[0038] Furthermore, when the control terminal detects data anomalies in the first pressure sensor, the second pressure sensor, and the third pressure sensor, it issues an alarm externally. The control terminal can display the usage of the present invention and give early warnings for anomalies, thereby ensuring safety.

[0039] Furthermore, the high-pressure pump 32 is connected to the third pipeline 64 through a fourth pipeline. When data anomalies occur in the control terminal, the high-pressure pump 32 stops, the first pipeline 63 opens, and the water flow in the water injection pipeline flows into the third pipeline 64 through the fourth pipeline. The third pipeline 64 outputs the water flow to the outside.

[0040] Furthermore, an on-off valve 65 is provided on each first pipeline 63. The on-off valve 65 is used to open / close the input of the liquid medicine mixture to each nano-mixing mechanism 6.

[0041] It should be noted that the on-off valve 65 can control the input of the liquid medicine mixture to each nano-mixing mechanism 6.

[0042] In this specification, the same or similar parts among the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0043] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A device for preparing gas-aqueous mixed nano-bubbles for water injection, characterized in that, Comprising: A housing (1), with a bracket (11) provided at the central position of the housing (1); A nitrogen preparation mechanism (2), which is provided at one end of the housing (1), and the nitrogen preparation mechanism (2) is used to prepare nitrogen; A high-pressure water injection mechanism (3), the high-pressure water injection mechanism (3) includes a water injector (31), a high-pressure pump (32) and two filter modules (33), the water injector (31) is provided at the other end of the housing (1), the water injector (31) is used to provide power for the flow of water, the water injector (31) is connected to the high-pressure pump (32), the high-pressure pump (32) is connected in parallel with the two filter modules (33), and the two filter modules (33) are detachably connected to the bracket (11); A liquid medicine mechanism (4), the liquid medicine mechanism (4) includes a medicine storage tank (41), a power pump (42) and a one-way solenoid valve (43), the medicine storage tank (41) is connected to the housing (1), and the power pump (42) and the one-way solenoid valve (43) are sequentially connected to the medicine storage tank (41); A microchannel mixer (5), the microchannel mixer (5) is sequentially connected to the high-pressure water injection mechanism (3) and the liquid medicine mechanism (4), the liquid medicine and water are mixed in the microchannel mixer (5) to form a liquid medicine mixture, the microchannel mixer (5) is connected to a high-pressure distributor (51), and the high-pressure distributor (51) is used to distribute the liquid medicine mixture; A plurality of nano mixing mechanisms (6), the nano mixing mechanism (6) includes a micro-nano generator (61) and a nano mixing tank (62), the micro-nano generator (61) is connected to the nano mixing tank (62), the high-pressure distributor (51) is respectively connected to a plurality of the micro-nano generators (61) through a first pipeline (63), the micro-nano generator (61) is connected to the nitrogen preparation mechanism (2), the liquid medicine mixture and nitrogen form a nano mixture in the micro-nano generator (61) and are stored in the nano mixing tank (62); A control terminal, which is connected to the nitrogen preparation mechanism (2), the high-pressure water injection mechanism (3), the liquid medicine mechanism (4) and the nano mixing mechanism (6).

2. The gas-liquid medicine mixed nano-bubble preparation device for water injection according to claim 1, characterized in that, The nitrogen preparation mechanism (2) has an air compressor (21), a refrigerated dryer (22) and a gas distributor (23), the air compressor (21) and the refrigerated dryer (22) are sequentially connected to prepare nitrogen, and the prepared nitrogen is transported into the gas distributor (23), and the gas distributor (23) is respectively connected to a plurality of the micro-nano generators (61) through a second pipeline (24).

3. The gas-liquid-water mixed nanobubble preparation device for water injection according to claim 1, wherein There is a first pressure sensor between the medicine storage tank (41) and the power pump (42), and a second pressure sensor between the high-pressure pump (32) and the filter module (33).

4. The gas-liquid medicine mixed nanobubble preparation device for water injection according to claim 3, characterized in that, The nano mixing tank (62) outputs the nano mixture through a third pipeline (64), and a third pressure sensor is arranged on the third pipeline (64). The first pressure sensor, the second pressure sensor and the third pressure sensor are connected to a control terminal.

5. The gas-liquid-water mixed nano-bubble preparation device for water injection according to claim 4, characterized in that, When the control terminal detects data anomalies in the first pressure sensor, the second pressure sensor and the third pressure sensor, it issues an alarm outward.

6. The gas-liquid medicine mixed nanobubble preparation device for water injection according to claim 4, characterized in that, The high-pressure pump (32) is connected to the third pipeline (64) through a fourth pipeline. When data anomalies occur in the control terminal, the high-pressure pump (32) stops, and the first pipeline (63) opens. The water flow in the water injection pipeline flows into the third pipeline (64) through the fourth pipeline, and the third pipeline (64) outputs the water flow to the outside.

7. The gas-liquid-water mixed nanobubble preparation device for water injection according to claim 6, characterized in that, An opening and closing valve (65) is arranged on each of the first pipelines (63), and the opening and closing valve (65) is used to open / close the input of the liquid medicine mixture to each of the nano mixing mechanisms (6).

8. The nano-bubble preparation device for gas-liquid medicine mixing for water injection according to claim 1, characterized in that, The bracket (11) has a plurality of connection holes, and the bracket (11) is detachably connected to the housing (1) through the connection holes.

9. The gas-liquid medicine mixed nano-bubble preparation device for water injection according to claim 1, characterized in that, The filtration module (33) includes a first filter (34) and a second filter (35). The first filter (34) is used for primary filtration, and the second filter (35) is used for secondary deep filtration.

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