Novel intelligent electromagnetic paraffin control and oil flow viscosity monitoring device for oil field

Abstract

The utility model relates to a novel intelligent electromagnetic paraffin control and oil flow viscosity monitoring device for an oil field, which comprises a wax-containing crude oil pipeline, an electromagnetic converter, an oil flow temperature monitor, an ultrasonic transmitter and an ultrasonic receiver. An electromagnetic converter arranged on the outer wall is connected with an electricity control box and a solar power generation panel through cables and generates a magnetic field parallel to the flowing direction of the wax-containing crude oil; variable-frequency sound waves generated by the ultrasonic transmitter carry specific information when passing through oil flow, the viscosity of the oil flow is monitored by monitoring the temperature of the oil flow and a pipeline crude oil viscosity-temperature program in a computer, and then the power supply amount and the electromagnetic intensity of the electromagnetic converter are adjusted by feeding back a temperature signal through the computer. The wax-proof viscosity reduction and oil flow viscosity monitoring device can realize intelligent wax-proof viscosity reduction and oil flow viscosity monitoring, ensures the operation safety of a wax-containing crude oil pipeline, reduces the labor intensity of pipeline technical management personnel, and improves the pipeline operation efficiency and economic benefits.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromagnetic wax prevention and viscosity reduction of waxy crude oil pipelines, and specifically relates to a novel intelligent electromagnetic wax prevention and oil flow viscosity monitoring device for oil fields. Background Art

[0002] As the formation temperature changes and the system pressure decreases during the production of waxy crude oil, wax will gradually crystallize and precipitate from the crude oil in the oil well and the ground oil pipeline, reducing oil production and oil delivery. In severe cases, it will cause the oil well to stop production. The crystallization temperature of wax in waxy crude oil is generally 30-60℃. During its production, when the temperature and pressure drop to a certain level, the precipitated wax crystals will gather and deposit on the inner wall of the flow channel, reducing the flow cross-sectional area of ​​the flow channel, and in severe cases, the flow channel may be blocked. Electromagnetic anti-wax technology is to interfere with the force between wax crystal particles and change the original irregular arrangement between wax crystals, thereby achieving anti-wax and viscosity reduction. The effectiveness of electromagnetic anti-wax depends on the flow rate, magnetic induction intensity and temperature of the oil flow through the magnetic field. The temperature is usually prevented from continuing to decrease by using insulated oil pipes and electric heating technology to control the number of wax crystals precipitated; and electromagnetic anti-wax technology uses the principle of electromagnetic field resonance to generate an electromagnetic field with a continuously changing frequency, so as to effectively prevent wax crystals from adhering to the pipe wall. Among them, the electromagnetic field direction has two options: vertical and parallel. When it is parallel to the oil flow direction, the anti-wax effect is significantly better than when the two are perpendicular. However, most of the existing electromagnetic anti-wax devices have simple structures, single functions, poor controllability, little information on physical properties such as oil flow viscosity, and low anti-wax efficiency. Therefore, it is very necessary to provide a new type of intelligent electromagnetic anti-wax and oil flow viscosity monitoring device for oil fields. Summary of the invention

[0003] The utility model aims to provide a novel intelligent electromagnetic wax prevention and oil flow viscosity monitoring device for oil fields, so as to solve the problems of simple structure, single function and low wax prevention efficiency proposed in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel intelligent electromagnetic wax prevention and oil flow viscosity monitoring device for oil fields, characterized in that it includes two parts: a magnetic generating unit and a monitoring unit. The magnetic generating unit mainly includes an electromagnetic converter, a cable, an electric control box and a solar power generation panel. The monitoring unit mainly includes an upstream ultrasonic transmitter, an upstream ultrasonic receiver, a downstream ultrasonic transmitter, a downstream ultrasonic receiver, an oil flow temperature monitor and a computer. The solar power generation panel collects natural light and converts it into electrical energy, which is then transmitted to the electric control box, which is connected to the electromagnetic converter through a cable. The upstream ultrasonic receiver and the downstream ultrasonic receiver respectively receive the sound wave signals emitted by the upstream ultrasonic transmitter and the downstream ultrasonic transmitter, and transmit them to the computer through a data line.

[0005] The upstream flange and the downstream flange are both connected by two flange bolts, a sealing gasket is added between the two flanges, and the upstream flange and the downstream flange are welded to the waxy crude oil pipeline.

[0006] Compared with the prior art, the beneficial effects of the utility model are:

[0007] (1) This new intelligent electromagnetic wax prevention and oil flow viscosity monitoring device for oil fields uses an electromagnetic converter to make the direction of the applied magnetic field parallel to the oil flow direction of the waxy crude oil pipeline, which can better cover the entire pipeline surface and effectively reduce the adhesion and deposition of wax crystals.

[0008] (2) This new type of intelligent electromagnetic wax prevention and oil flow viscosity monitoring device for oil fields realizes pipeline wax prevention and scale removal and oil flow viscosity monitoring through the coordinated action of ultrasonic transmitters, ultrasonic receivers, computers and oil flow temperature monitors. First, the powerful ultrasonic waves generated can be used to remove wax or dirt that may be attached to the pipe wall. Second, the variable frequency sound waves generated by the ultrasonic transmitter transmit signals to the ultrasonic receiver, which receives the signals and transmits them to the computer. The changes in oil flow viscosity can be displayed on the computer. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] As shown in the figure: 1-upstream flange, 2-waxy crude oil pipeline, 3-electromagnetic converter, 4-cable, 5-electrical control box, 6-solar power generation panel, 7-upstream ultrasonic transmitter, 8-downstream ultrasonic transmitter, 9-oil flow temperature monitor, 10-computer, 11-upstream ultrasonic receiver, 12-downstream ultrasonic receiver, 13-downstream flange. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings of the utility model to explain in detail the structure, connection method and main functions of the device. Obviously, the implementation of the new intelligent electromagnetic wax prevention and oil flow viscosity monitoring device for oil fields will help ensure the safety of waxy crude oil pipeline operation, reduce the labor intensity of pipeline technical management personnel, and improve pipeline operation efficiency and economic benefits.

[0012] like Figure 1 As shown, a novel intelligent electromagnetic wax prevention and oil flow viscosity monitoring device for oil fields includes a magnetic generating unit and a monitoring unit. The magnetic generating unit mainly includes an electromagnetic converter 3, a cable 4, an electric control box 5 and a solar power generation panel 6; the monitoring unit mainly includes an upstream ultrasonic transmitter 7, an upstream ultrasonic receiver 11, a downstream ultrasonic transmitter 8, a downstream ultrasonic receiver 12, an oil flow temperature monitor 9 and a computer 10.

[0013] The upstream flange 1 and the downstream flange 13 are respectively welded to the two ends of the waxy crude oil pipeline 2, and are connected to the flange on the other side by bolts, and a sealing gasket is added between the two flanges. The outer wall of the waxy crude oil pipeline 2 is fixed with the electromagnetic converter 3, and the electromagnetic converter 3, the control box 5, and the solar panel 6 are connected in sequence by the cable 4. The computer 10 is respectively connected to the electromagnetic converter 3 and the oil flow temperature monitor 9 by a data cable, and the oil flow temperature monitor 9 is connected to the waxy crude oil pipeline 2 by bolts;

[0014] The upstream ultrasonic transmitter 7 and the downstream ultrasonic transmitter 8 are fixedly connected to the outer wall of the waxy crude oil pipeline 2, and the upstream ultrasonic receiver 11 and the downstream ultrasonic receiver 12 receive the frequency conversion sound waves generated by the upstream ultrasonic transmitter 7 and the downstream ultrasonic transmitter 8, respectively, and are connected to the computer 10 through a data line;

[0015] The computer 10 monitors the viscosity change of the oil flow in real time through the program of the viscosity-temperature characteristic of the pipeline crude oil tested, analyzed and processed in advance, and intelligently evaluates the anti-wax and viscosity-reducing effect of the electromagnetic treatment of the oil flow by combining the time difference of the signals received by the upstream ultrasonic receiver 11 and the downstream ultrasonic receiver 12, and then feeds back the power supply adjustment signal to the electromagnetic converter 3, thereby realizing intelligent electromagnetic anti-wax and oil flow viscosity monitoring;

[0016] The solar panel 6 is provided to realize solar power generation, and transmits electricity to the electromagnetic converter 3 through the control box 5 and the cable 4. The electromagnetic converter 3 supplies power according to the power supply signal fed back by the computer 10 and converts it into a magnetic field parallel to the flow direction of the waxy crude oil, thereby achieving an adaptive anti-wax and viscosity reduction effect;

[0017] The electric control box 5 can realize automatic adjustment of current supply according to the power supply signal received by the electromagnetic converter 3, and has strong adaptability;

[0018] The outer protective layer of the waxy crude oil pipeline 2 and the electromagnetic converter 3 has good corrosion resistance and heat insulation, strong practicality and easy installation.

[0019] The working principle and use process of this utility model:

[0020] The solar panel 6 is placed under natural light, and the generated current flows to the control box 5 through the cable 4. The power switch is turned on, and the current flows to the electromagnetic converter 3. After the electromagnetic field acts on the fluid, the arrangement of the wax crystal particles can be changed, so that the disordered wax crystal particles are polarized and flow in an orderly manner with the oil flow, thereby preventing the wax crystals precipitated from the crude oil from accumulating on the inner wall of the waxy crude oil pipeline 2, making it lose the ability to adhere to the inner pipe wall, thereby achieving the purpose of wax prevention. In addition, the electromagnetic converter 3 will also generate heat after being energized, which can further improve the wax prevention effect. The upstream ultrasonic transmitter 7 and the downstream ultrasonic transmitter 8 are used to generate variable frequency sound waves to act on the crude oil, and the upstream ultrasonic receiver 11 and the downstream ultrasonic receiver 12 are used to transmit the variable frequency sound wave signal in the crude oil to the computer 10. The computer 10 is connected to the oil flow temperature monitor 9 through a data line, and then the oil flow viscosity change is monitored through the pipeline crude oil viscosity-temperature characteristic program.

[0021] The invention purpose of the utility model is mainly to prevent wax and reduce viscosity of waxy crude oil, and the use of electromagnetic anti-wax technology can improve the safety of its transportation pipeline. The above is only for the specific implementation of the device, but the application scope of the utility model device is still wide, especially in the development of offshore waxy viscous oil. Under the operation of professional technicians, some devices can be improved or replaced to achieve good application effects.

Claims

1. A new type of intelligent electromagnetic wax prevention and oil flow viscosity monitoring device for oil fields, characterized in that: The invention comprises two parts: a magnetic generating unit and a monitoring unit. The magnetic generating unit mainly comprises an electromagnetic converter (3), a cable (4), an electric control box (5) and a solar power generation panel (6). The monitoring unit mainly comprises an upstream ultrasonic transmitter (7), an upstream ultrasonic receiver (11), a downstream ultrasonic transmitter (8), a downstream ultrasonic receiver (12), an oil flow temperature monitor (9) and a computer (10). The solar power generation panel (6) collects natural light and converts it into electric energy, which is then transmitted to the electric control box (5). The electric control box (5) is connected to the electromagnetic converter (3) through the cable (4). The upstream ultrasonic receiver (11) and the downstream ultrasonic receiver (12) respectively receive the sound wave signals emitted by the upstream ultrasonic transmitter (7) and the downstream ultrasonic transmitter (8), and transmit them to the computer (10) through the data line.

2. According to claim 1, a novel intelligent electromagnetic wax prevention and oil flow viscosity monitoring device for oil fields is characterized in that: The upstream flange (1) and the downstream flange (13) are both connected by two flange bolts, a sealing gasket is added between the two flanges, and the upstream flange (1) and the downstream flange (13) are welded to the waxy crude oil pipeline (2).

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