Super low frequency anticorrosion, sterilization and scale inhibition device for backwater

Abstract

The utility model discloses a kind of superlow frequency anticorrosive sterilization scale inhibition devices for reinjection water, including horizontal tank body, water inlet and water outlet are provided on the end of horizontal tank body along length direction, six fixed ports of spiral distribution are provided on the tank wall of horizontal tank body, the center line of adjacent two fixed ports is set with 60 ° included angle, electrode is respectively installed in fixed port with one-to-one correspondence, electrode is installed on fixed port by positioning shell, positioning shell outer part is respectively equipped with pressing plate. The utility model can adopt pure physical electromagnetic field to treat reinjection water, does not introduce any chemical substance, solves the inherent drawbacks of chemical reagent method, fundamentally eliminates secondary pollution and environmental influence, is more friendly to producing layer.

Description

Technical Field

[0001] This utility model relates to an ultra-low frequency anti-corrosion, sterilization and scale inhibition device for reinjection water, belonging to the field of reinjection water technology. Background Technology

[0002] In the petroleum industry, reinjection water specifically refers to water that needs to be reinjected into underground oil reservoirs. Produced water from oilfields is the primary source of reinjection water. The composition of reinjection water is very complex, and its flow through pipelines, tanks, pumps, and other equipment can cause a series of serious problems, which can be summarized into the following three categories: 1. Scale formation: Reinjected water, especially produced water, usually contains high concentrations of scale-forming ions, such as calcium ions, magnesium ions, barium ions, carbonate ions, and sulfate ions. When temperature and pressure change, or when different incompatible waters are mixed, these ions combine to form water-insoluble salt precipitates, i.e., scale.

[0003] 2. Corrosion problem: The reinjected water has an extremely high salt content and strong conductivity, forming a strong electrolyte solution, which greatly accelerates electrochemical corrosion.

[0004] 3. Microbiological issues: The reinjected water environment is highly conducive to bacterial growth, such as sulfate-reducing bacteria, iron bacteria, and saprophytic bacteria. Large numbers of bacteria and their secretions form a viscous, gelatinous biofilm that adheres to the pipe walls, increasing flow resistance.

[0005] Currently, traditional methods for addressing scaling, corrosion, and microbial issues in reinjection water treatment mainly rely on chemical agents, such as scale inhibitors, corrosion inhibitors, and bactericides. While effective, these methods have drawbacks such as secondary pollution, damage to the formation, and high costs.

[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] This invention addresses the shortcomings of the prior art by providing an ultra-low frequency anti-corrosion, sterilization, and scale inhibition device for reinjection water. It can treat reinjection water using purely physical electromagnetic fields without introducing any chemical substances, thus solving the inherent drawbacks of chemical methods and fundamentally eliminating secondary pollution and environmental impact, making it more friendly to the production layer.

[0008] To solve the above technical problems, the present invention adopts the following technical solution: The ultra-low frequency anti-corrosion, sterilization and scale inhibition device for reinjection water includes a horizontal tank. The horizontal tank has an inlet port and an outlet port at its end along its length. The tank wall has six fixed ports arranged in a spiral pattern. The center lines of two adjacent fixed ports are set at a 60° angle. Electrodes are installed inside each fixed port and are installed on the fixed ports through positioning shells. Pressure plates are provided on the outside of the positioning shells.

[0009] Furthermore, the electrode is an ultra-low frequency wave emitter, which is connected to an ultra-low frequency generator in the control room via a circuit.

[0010] Furthermore, both the inlet and outlet ports are connected to the inner cavity of the horizontal tank. The center lines of the inlet and outlet ports are collinear with the center line of the horizontal tank. The inlet port is connected to the inlet pipe, and the outlet port is connected to the outlet pipe.

[0011] Furthermore, support seats are installed on both the left and right sides of the bottom of the horizontal tank.

[0012] Furthermore, the centerline of the fixed port is perpendicularly intersected with the centerline of the horizontal tank.

[0013] Furthermore, a ring-shaped sealing gasket is installed between the fixed port and the positioning shell.

[0014] Furthermore, the pressure plate, positioning shell, sealing gasket, and fixing port are all provided with bolt holes for bolts to pass through.

[0015] Furthermore, a flange for connection is provided on the end of the fixed port away from the horizontal tank body.

[0016] Furthermore, the positioning shell consists of an outer flange and an inner positioning cylinder. The positioning cylinder is inserted into the fixed port, and the electrode is fixed to the positioning cylinder.

[0017] Furthermore, both the pressure plate and the positioning shell are provided with threading holes in the middle.

[0018] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: Water flows continuously through an interwoven and superimposed ultra-low frequency electromagnetic field generated by six spirally distributed electrodes. Under the action of the electromagnetic field, a series of physical changes occur in the water: the crystallization process of scale-forming ions is altered, the physiological activities of microorganisms are inhibited, and the state of metal surfaces is optimized, tending to form a protective film; thus enabling the treated water to inhibit scaling, sterilize, and prevent corrosion. This invention uses a purely physical electromagnetic field to treat reinjected water without introducing any chemical substances, thus solving the inherent drawbacks of chemical methods and fundamentally eliminating secondary pollution and environmental impact, making it more friendly to the production layer.

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a structural front view of the present invention; Figure 2 This is a side view of the structure of this utility model; Figure 3 yes Figure 1 A schematic diagram of the cross-section at point AA.

[0021] In the diagram, 1-horizontal tank, 2-inlet port, 3-outlet port, 4-inlet pipe, 5-outlet pipe, 6-support base, 7-fixed port, 8-electrode, 9-positioning shell, 10-pressure plate, 11-sealing gasket, 12-bolt hole, 13-threading hole. Detailed Implementation

[0022] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0023] like Figures 1-3 As shown in the figure, this utility model provides an ultra-low frequency anti-corrosion, sterilization and scale inhibition device for reinjection water, including a horizontal tank 1. The horizontal tank 1 has an inlet port 2 and an outlet port 3 at its end along the length direction. The tank wall of the horizontal tank 1 has six fixed ports 7 arranged in a spiral shape. Electrodes 8 are installed inside the fixed ports 7 respectively and are arranged one-to-one with them. The electrodes 8 are installed on the fixed ports 7 through positioning shells 9. Pressure plates 10 are respectively provided on the outside of the positioning shells 9.

[0024] The electrode 8 is an ultra-low frequency wave emitting electrode. The ultra-low frequency wave emitting electrode is connected to the ultra-low frequency generator in the control room through a line. It is used to continuously emit ultra-low frequency electromagnetic waves into the water, so that hard scale and biological slime cannot adhere to the inner wall of the reinjection water pipe, and at the same time protect the carbon steel structure in contact with the water.

[0025] Both the inlet port 2 and the outlet port 3 are connected to the inner cavity of the horizontal tank 1. The center lines of the inlet port 2 and the outlet port 3 are collinear with the center line of the horizontal tank 1. The inlet port 2 is connected to the inlet pipe 4, and the outlet port 3 is connected to the outlet pipe 5.

[0026] The reinjected water delivered by the inlet pipe 4 enters the inner cavity of the horizontal tank 1 through the inlet port 2 for treatment, and is then output sequentially through the outlet port 3 and the outlet pipe 5.

[0027] The horizontal tank 1 is equipped with support bases 6 on both the left and right sides of its bottom.

[0028] The centerline of the fixed port 7 is perpendicularly intersected with the centerline of the horizontal tank 1.

[0029] The center lines of two adjacent fixed ports 7 are set at a 60° angle.

[0030] A ring-shaped sealing gasket 11 is installed between the fixed port 7 and the positioning shell 9 to improve the connection sealing.

[0031] A flange for connection is provided on the end of the fixed port 7 away from the horizontal tank body 1.

[0032] The positioning shell 9 consists of an outer flange and an inner positioning cylinder. The positioning cylinder is inserted into the fixed port 7, and the electrode 8 is fixed to the positioning cylinder.

[0033] The pressure plate 10, positioning shell 9, sealing gasket 11, and fixing port 7 are all provided with bolt holes 12 for bolts to pass through.

[0034] Both the pressure plate 10 and the positioning shell 9 are provided with wire holes 13 in the middle for connecting the wiring.

[0035] The specific working principle of this utility model is as follows: The reinjected water flows smoothly into the horizontal tank 1 through the inlet port 2. As the water flows through the horizontal tank 1, it continuously passes through an interwoven and superimposed ultra-low frequency electromagnetic field generated by six spirally distributed electrodes 8. Under the influence of the electromagnetic field, a series of physical changes occur in the water: the crystallization process of scale-forming ions is altered, the physiological activity of microorganisms is inhibited, and the state of the metal surface is optimized, tending to form a protective film. The treated water flows out from the outlet port 3 and enters the subsequent reinjection system through the outlet pipe 5. At this point, the water already possesses the ability to inhibit scaling, sterilize, and prevent corrosion. Through continuous treatment, the pipes and equipment inner walls of the entire reinjection water system will remain clean, free of hard scale and biological slime, significantly reducing the metal corrosion rate and extending the equipment's lifespan.

[0036] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. An ultra-low frequency anti-corrosion, sterilization, and scale inhibition device for reinjection water, characterized in that: The system includes a horizontal tank (1), which has an inlet port (2) and an outlet port (3) at its ends along the length direction. The tank wall of the horizontal tank (1) has six fixed ports (7) arranged in a spiral pattern. The center lines of two adjacent fixed ports (7) are set at a 60° angle. Electrodes (8) are installed inside the fixed ports (7) respectively, and the electrodes (8) are installed on the fixed ports (7) through positioning shells (9). Pressure plates (10) are provided on the outside of the positioning shells (9).

2. The ultra-low frequency corrosion prevention, sterilization, and scale inhibition device for reinjection water as described in claim 1, characterized in that: The electrode (8) is an ultra-low frequency wave emitter, which is connected to the ultra-low frequency generator in the control room via a line.

3. The ultra-low frequency corrosion prevention, sterilization, and scale inhibition device for reinjection water as described in claim 1, characterized in that: The inlet port (2) and outlet port (3) are both connected to the inner cavity of the horizontal tank (1). The center lines of the inlet port (2) and outlet port (3) are collinear with the center line of the horizontal tank (1). The inlet port (2) is connected to the inlet pipe (4), and the outlet port (3) is connected to the outlet pipe (5).

4. The ultra-low frequency corrosion prevention, sterilization, and scale inhibition device for reinjection water as described in claim 1, characterized in that: The horizontal tank (1) has support seats (6) installed on both the left and right sides of its bottom.

5. The ultra-low frequency corrosion prevention, sterilization, and scale inhibition device for reinjection water as described in claim 1, characterized in that: The centerline of the fixed port (7) is perpendicularly intersected with the centerline of the horizontal tank (1).

6. The ultra-low frequency corrosion prevention, sterilization, and scale inhibition device for reinjection water as described in claim 1, characterized in that: A ring-shaped sealing gasket (11) is installed between the fixed port (7) and the positioning shell (9).

7. The ultra-low frequency corrosion prevention, sterilization, and scale inhibition device for reinjection water as described in claim 6, characterized in that: The pressure plate (10), positioning shell (9), sealing gasket (11) and fixing port (7) are all provided with bolt holes (12) for bolts to pass through.

8. The ultra-low frequency corrosion prevention, sterilization, and scale inhibition device for reinjection water as described in claim 1, characterized in that: A flange for connection is provided on the end of the fixed port (7) away from the horizontal tank (1).

9. The ultra-low frequency corrosion prevention, sterilization, and scale inhibition device for reinjection water as described in claim 1, characterized in that: The positioning shell (9) consists of an outer flange and an inner positioning cylinder. The positioning cylinder is inserted into the fixed port (7), and the electrode (8) is fixed to the positioning cylinder.

10. The ultra-low frequency corrosion prevention, sterilization, and scale inhibition device for reinjection water as described in claim 1, characterized in that: Both the pressure plate (10) and the positioning shell (9) are provided with a wire hole (13) in the middle.

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