WO2021232884A1

WO2021232884A1 - Full-frequency-sweeping electromagnetic wax-preventing scale-inhibiting corrosion-inhibiting apparatus for crude oil exploitation and transportation pipeline

Info

Publication number: WO2021232884A1
Application number: PCT/CN2021/078841
Authority: WO
Inventors: 李旭; 李伟; 商霄; 徐言民; 陈洪帅; 高建农; 薛善强
Original assignee: 东营同博石油电子仪器有限公司
Priority date: 2020-05-18
Filing date: 2021-03-03
Publication date: 2021-11-25
Also published as: CN111336344A; CN111336344B

Abstract

A full-frequency-sweeping electromagnetic wax-preventing scale-inhibiting corrosion-inhibiting apparatus for a crude oil exploitation and transportation pipeline, comprising a non-magnetic-conductive pressure-bearing medium transportation pipeline (10). The present invention can monitor the temperature of a crude oil medium in the non-magnetic-conductive pressure-bearing medium transportation pipeline (10) and operation parameters of a front-end electromagnetic harmonic conversion and parametric detection system (7), a middle electromagnetic harmonic conversion and parametric detection system (8), and a rear-end electromagnetic harmonic conversion and parametric detection system (9) in real time, control the frequency and the magnetic field intensity of a magnetic field according to different temperatures and well conditions by means of an HMI/PLC integrated program control module (3), an adaptive frequency algorithm generation module (4), a multi-harmonic generation module (5), and an IGBT drive and harmonic power generation module (6) in an integrated machine (12), and adjust a magnetization distance, thereby expanding the application range of the apparatus in wax prevention and scale prevention, and improving the corrosion-inhibiting effect of the apparatus after wax inhibition and scale prevention.

Description

Full-sweep frequency electromagnetic anti-wax, scale and corrosion inhibitor for crude oil production and transportation pipeline

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on May 18, 2020, the application number is 202010417688.9, and the invention title is "Crude Oil Extraction Pipeline Full-sweep Electromagnetic Wax, Scale, and Corrosion Inhibition Device", all of which The content is incorporated in this application by reference.

Technical field

The invention belongs to the technical field of oil exploitation and gathering and transportation, and specifically relates to a full-sweep frequency electromagnetic wax-preventing, scale-inhibiting and corrosion-inhibiting device for crude oil production and transportation pipelines.

Background technique

In crude oil extraction, there is a certain amount of wax deposits in the produced fluid. Wax deposition is a physical phenomenon and production problem often encountered in oil production. Wax can be divided into paraffin wax and ozokerite based on crystal shape. Wax deposition forms a three-dimensional belt-like, flake-like wax deposit, which is mainly composed of paraffin wax C14-C35 normal alkanes, and a certain amount of ozokerite wax C36-C55 and microcrystalline wax. In addition, there are organic and inorganic substances such as colloids, asphaltenes, and a small amount of water, silt, and salt scale in the wax deposits.

Paraffin molecules are generally in a dissolved state under reservoir conditions. When natural gas overflows and separates from crude oil during oil recovery, the physical properties of the produced fluid change, and its ability to dissolve wax will significantly decrease. In the production process of waxy crude oil, as the temperature and pressure properties continue to decrease, the flow rate, gas and liquid properties of the crude oil will change, and the wax dissolved in the crude oil will crystallize out, grow, accumulate and deposit, and finally A solid and semi-solid three-dimensional space network structure of wax lump is included, which solidifies the crude oil, loses fluidity, and gradually deposits crystals attached to the wall of the tubing, sucker rod, and pipeline, and continues to accumulate. The oil production and oil pipelines are blocked, which affects the normal production of oil production and oil transportation.

At present, there are various methods of wax prevention and wax removal at home and abroad, and each has its advantages and disadvantages. Mainly include: mechanical cleaning, thermal wax removal and anti-wax, chemical wax removal and anti-wax, lining coating anti-wax, ultrasonic and electromagnetic anti-wax, etc. However, most of them are time-consuming and labor-intensive, high energy consumption, difficult construction, high cost, repeated operations, and some seriously pollute the stratum with many side effects. The active electromagnetic anti-wax technology is an advanced and scientific anti-wax measure used in production in recent years. It has the characteristics of low cost, simple process, obvious effect, easy management and maintenance, energy saving and environmental protection, so it has been widely promoted. application. However, the current ordinary electromagnetic wax prevention technology is basically a single-frequency pulsed magnetic field. The pulsed magnetic field has a single frequency and a fixed magnetic field strength. Some use permanent magnets. The output power cannot be adjusted. The magnetization distance is short. Different well conditions use a single frequency or magnetic field. Intensity, the application range of wax and scale prevention is narrow, and different well conditions cannot be adjusted, resulting in a series of poor wax and scale and corrosion inhibition effects and failures. The theoretical research is not deep enough, the pertinence is not strong, the scope of application is narrow, and the efficiency is low. And the problem of poor results.

Summary of the invention

The purpose of the present invention is to provide a full-sweep electromagnetic anti-wax scale and corrosion inhibitor for crude oil production and transportation pipelines to monitor the temperature of the crude oil medium in the non-magnetic pressure-bearing medium transportation pipeline and the front-end electromagnetic harmonic conversion and parameter detection in real time The operating parameters of the system, the central electromagnetic harmonic conversion and parameter detection system and the back-end electromagnetic harmonic conversion and parameter detection system are controlled by the integrated HMI/PLC program control module and adaptive frequency in the integrated machine according to different temperatures and well conditions. The algorithm generation module, multi-harmonic generation module, IGBT drive and harmonic power generation module control the frequency and magnetic field strength of the magnetic field, and adjust the magnetization distance to improve the scope of application of the device for wax and anti-scaling, and improve the device after wax and anti-scaling Corrosion inhibition effect.

To achieve the objective, the present invention provides the following solutions:

A full-sweep electromagnetic anti-wax, scale and corrosion inhibitor for crude oil production and transportation pipelines, including a non-magnetically conductive pressure-bearing medium transmission pipeline, the outer wall of the non-magnetically conductive pressure-bearing medium transmission pipeline is sequentially sleeved and installed with front-end electromagnetic harmonic conversion and parameters The detection system, the central electromagnetic harmonic conversion and parameter detection system and the back-end electromagnetic harmonic conversion and parameter detection system, the front-end electromagnetic harmonic conversion and parameter detection system, the central electromagnetic harmonic conversion and parameter detection system and the back-end electromagnetic harmonic The wave conversion and parameter detection systems are composed of electromagnetic conversion coils and parameter detection devices, and the front-end electromagnetic harmonic conversion and parameter detection system, the middle electromagnetic harmonic conversion and parameter detection system and the back-end electromagnetic harmonic conversion and parameter detection system The magnetic field generated by the electromagnetic conversion coil is a stepped harmonic magnetic field, and the active vector of the magnetic field increases sequentially. The front-end electromagnetic harmonic conversion and parametric detection system, the central electromagnetic harmonic conversion and parametric detection system, and the back-end electromagnetic harmonic conversion and The parameter detection devices in the parameter detection system are all electromechanically connected with the HMI/PLC integrated;

The HMI/PLC integrated machine is provided with a power filter isolation and step-down module, a control and main power adapter module, an HMI/PLC integrated program control module, an adaptive frequency algorithm generation module, a multi-harmonic generation module and an IGBT drive and Harmonic power generation module. The power supply filtering isolation step-down module is composed of a filter circuit, a step-down isolation transformer and an AC-DC conversion module. The output end of the power supply filtering isolation step-down module is electrically connected to the control and main power adapter module, The output end of the control and main power adapting module is electrically connected with an HMI/PLC integrated program control module, an adaptive frequency algorithm generation module, a multi-harmonic generation module, and an IGBT drive and harmonic power generation module. The HMI/PLC The PLC integrated program control module is electrically connected to the adaptive frequency algorithm generation module, and the HMI/PLC integrated program control module receives the front-end electromagnetic harmonic conversion and parameter detection system, the central electromagnetic harmonic conversion and parameter detection system and the back-end electromagnetic harmonic The detection signal fed back by the parameter detection device in the wave conversion and parameter detection system, the output end of the adaptive frequency algorithm generation module is electrically connected to the multi-harmonic generation module, and the multi-harmonic generation module receives the frequency of the adaptive frequency algorithm generation module Signal, and the output end of the multi-harmonic generation module is electrically connected to the IGBT drive and the harmonic power generation module, and the IGBT drive and the harmonic power generation module are electrically connected to the front-end electromagnetic harmonic conversion and parameter detection system, the central electromagnetic harmonic conversion and The parameter detection system and the back-end electromagnetic harmonic conversion and the electromagnetic generating coil in the parameter detection system.

Further, the outer walls of the front-end electromagnetic harmonic conversion and parametric detection system, the middle electromagnetic harmonic conversion and parametric detection system, and the back-end electromagnetic harmonic conversion and parametric detection system are respectively wrapped with armored protective covers, which can be The wave conversion and parameter detection system, the central electromagnetic harmonic conversion and parameter detection system and the back-end electromagnetic harmonic conversion and parameter detection system have an isolation effect, reduce interference, and can increase the service life.

Further, an electric heating coil is fixedly installed between the front-end electromagnetic harmonic conversion and parameter detection system, the middle electromagnetic harmonic conversion and parameter detection system, and the back-end electromagnetic harmonic conversion and parameter detection system. The electric heating coil can be non-magnetically conductive. The temperature of the crude oil medium in the pressure-bearing medium transportation pipeline is adjusted.

Further, the front-end electromagnetic harmonic conversion and parameter detection system, the middle electromagnetic harmonic conversion and parameter detection system, the back-end electromagnetic harmonic conversion and parameter detection system, and the electric heating coil are wrapped in a sealed shell, and the sealed shell can perform the entire work The device package is used to protect the working device.

Further, the sealed casing is filled with a heat-insulating and waterproof filling layer, which can prevent the external damp and heat environment from damaging the front-end electromagnetic harmonic conversion and parameter detection system, the middle part of the electromagnetic harmonic conversion and parameter detection system and the back-end Electromagnetic harmonic conversion and parameter detection system to improve service life.

Further, the HMI/PLC integrated program control module is provided with system algorithm control software, which can adjust the operating parameters output to the adaptive frequency algorithm generation module according to different use environments, thereby improving the applicability of the device.

Further, the multi-harmonic generator of the multi-harmonic generation module effectively covers a frequency of 10-500 Hz, and the multi-harmonic generation module effectively covers a wide frequency, which can improve the application range of the device for wax prevention and scale prevention.

The beneficial effects of the present invention are:

(1) This solution can realize real-time monitoring of the temperature of the crude oil medium in the non-magnetically permeable pressure-bearing medium transportation pipeline and the front-end electromagnetic harmonic conversion and parameter detection system, the central electromagnetic harmonic conversion and parameter detection system and the back-end electromagnetic harmonic conversion And the operating parameters of the parameter detection system, according to different temperatures and well conditions, through the HMI/PLC integrated program control module in the integrated machine, the adaptive frequency algorithm generation module, the multi-harmonic generation module, the IGBT drive and the harmonic power generation module Control the frequency and intensity of the magnetic field, and adjust the magnetization distance to increase the scope of application of the device for wax and scale prevention, and improve the corrosion inhibition effect of the device after wax and scale prevention.

(2) The outer walls of the front-end electromagnetic harmonic conversion and parameter detection system, the middle electromagnetic harmonic conversion and parameter detection system, and the back-end electromagnetic harmonic conversion and parameter detection system are respectively wrapped with armored protective covers, which can convert the front-end electromagnetic harmonics. And the parameter detection system, the central electromagnetic harmonic conversion and parameter detection system and the back-end electromagnetic harmonic conversion and parameter detection system play a role in isolation, reduce interference, and can increase the service life.

(3) Electric heating coils are fixedly installed between the front-end electromagnetic harmonic conversion and parameter detection system, the middle electromagnetic harmonic conversion and parameter detection system and the back-end electromagnetic harmonic conversion and parameter detection system. The electric heating coil can bear pressure against non-magnetic The temperature of the crude oil medium in the medium conveying pipeline is adjusted.

(4) The front-end electromagnetic harmonic conversion and parameter detection system, the middle electromagnetic harmonic conversion and parameter detection system, the back-end electromagnetic harmonic conversion and parameter detection system and the electric heating coil are wrapped in a sealed shell, which can encapsulate the entire working device , Used to protect working devices.

(5) The sealed shell is filled with a heat-insulating and waterproof filling layer, which can prevent the external damp and heat environment from damaging the front-end electromagnetic harmonic conversion and parameter detection system, the middle electromagnetic harmonic conversion and parameter detection system and the back-end electromagnetic Harmonic conversion and parameter detection system improve the service life.

(6) The HMI/PLC integrated program control module is equipped with system algorithm control software. The system algorithm control software can adjust the operating parameters of the output to the adaptive frequency algorithm generation module according to different use environments to improve the applicability of the device.

(7) The multi-harmonic generator of the multi-harmonic generation module effectively covers the frequency 10-500Hz, and the multi-harmonic generation module effectively covers a wide frequency, which can improve the application range of the device for wax prevention and anti-scaling.

Attached drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the embodiments. Obviously, the drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, without creative labor, other drawings can be obtained based on these drawings.

Figure 1 is a schematic diagram of the system composition of the present invention;

Figure 2 is a schematic block diagram of the present invention;

Figure 3 is a schematic diagram of the installation structure of the present invention;

Fig. 4 is a schematic diagram of a full-sweep frequency electromagnetic anti-wax scale and corrosion inhibitor device for crude oil production and transportation pipelines provided by an embodiment of the present invention.

Symbol Description:

1- Power filter isolation step-down module; 2- Control and main power adapter module; 3-HMI/PLC integrated program control module; 4- Adaptive frequency algorithm generation module; 5- Multi-harmonic generation module; 6-IGBT Drive and harmonic power generation module; 7-Front-end electromagnetic harmonic conversion and parameter detection system; 8-Central electromagnetic harmonic conversion and parameter detection system; 9-Back-end electromagnetic harmonic conversion and parameter detection system; 10-Non-magnetic Pressure-bearing medium delivery pipeline; 11-system algorithm control software; 12-HMI/PLC integrated machine; 13-armored protective cover; 14-electric heating coil; 15-sealed shell; 16-insulation and waterproof filling layer.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1:

Please refer to Figure 1-3. The full-sweep electromagnetic anti-wax, scale, and corrosion-inhibiting device for crude oil production and transportation pipelines includes a non-magnetically permeable pressure-bearing medium conveying pipeline 10, and the non-magnetically permeable pressure-bearing medium conveying pipeline 10 is a pressure-bearing fluid conveying pipe. There is no eddy current effect when the crude oil is transported. The outer wall of the non-magnetically permeable pressure-bearing medium transportation pipeline 10 is successively sleeved and installed with a front-end electromagnetic harmonic conversion and parameter detection system 7, a middle electromagnetic harmonic conversion and parameter detection system 8 and a back-end electromagnetic harmonic Wave conversion and parameter detection system 9, front-end electromagnetic harmonic conversion and parameter detection system 7, middle electromagnetic harmonic conversion and parameter detection system 8 and back-end electromagnetic harmonic conversion and parameter detection system 9 are all composed of electromagnetic conversion coils and parameter detection devices The magnetic field generated by the electromagnetic conversion coil in the front-end electromagnetic harmonic conversion and parameter detection system 7, the central electromagnetic harmonic conversion and parameter detection system 8 and the back-end electromagnetic harmonic conversion and parameter detection system 9 is a stepped harmonic magnetic field. The active vector of the magnetic field increases successively. The parameter detection devices in the front-end electromagnetic harmonic conversion and parameter detection system 7, the central electromagnetic harmonic conversion and parameter detection system 8 and the back-end electromagnetic harmonic conversion and parameter detection system 9 are all connected with the HMI /PLC integrated machine 12 is electrically connected, front-end electromagnetic harmonic conversion and parameter detection system 7, middle electromagnetic harmonic conversion and parameter detection system 8 and back-end electromagnetic harmonic conversion and parameter detection system 9 are respectively wrapped with armored protective covers on the outer walls 13. It can isolate the front-end electromagnetic harmonic conversion and parameter detection system 7, the middle electromagnetic harmonic conversion and parameter detection system 8 and the back-end electromagnetic harmonic conversion and parameter detection system 9, reducing interference and improving service life , The front-end electromagnetic harmonic conversion and parameter detection system 7, the central electromagnetic harmonic conversion and parameter detection system 8 and the back-end electromagnetic harmonic conversion and parameter detection system 9 are fixedly installed with electric heating coils 14, which can conduct non-conductive The temperature of the crude oil medium in the magnetic pressure-bearing medium transportation pipeline 10 is adjusted, the front-end electromagnetic harmonic conversion and parameter detection system 7, the central electromagnetic harmonic conversion and parameter detection system 8, the back-end electromagnetic harmonic conversion and parameter detection system 9 and electric heating The coil 14 is wrapped in a sealed shell 15. The sealed shell 15 can encapsulate the entire working device to protect the working device. The sealed shell 15 is filled with a heat-insulating and waterproof filling layer 16, which can prevent the external humid and hot environment. To damage the front-end electromagnetic harmonic conversion and parameter detection system 7, the central electromagnetic harmonic conversion and parameter detection system 8 and the back-end electromagnetic harmonic conversion and parameter detection system 9, improve the service life;

Please refer to Figure 1-2 and Figure 4. The HMI/PLC integrated machine 12 is equipped with a power filter isolation step-down module 1, a control and main power adapter module 2, an HMI/PLC integrated program control module 3, an adaptive frequency algorithm Generation module 4, multi-harmonic generation module 5 and IGBT drive and harmonic power generation module 6, power filter isolation step-down module 1 consists of filter circuit, step-down isolation transformer and AC-DC conversion module, power supply filter isolation step-down module The output terminal of 1 is electrically connected to the control and main power adapter module 2 to provide control and operation power respectively, providing high-quality and stable power supply for the system. The output terminal of the control and main power adapter module 2 is electrically connected to HMI/PLC Integrated program control module 3, adaptive frequency algorithm generation module 4, multi-harmonic generation module 5 and IGBT drive and harmonic power generation module 6, the main power adapter module 2 is an HMI/PLC integrated program control module 3. Adaptive frequency algorithm generation module 4, multi-harmonic generation module 5 and IGBT drive and harmonic power generation module 6 supply power, HMI/PLC integrated program control module 3 and adaptive frequency algorithm generation module 4 are electrically connected, HMI/PLC integration The program control module 3 is equipped with a system algorithm control software 11. The system algorithm control software 11 can adjust the operating parameters output to the adaptive frequency algorithm generation module 4 according to different use environments, improve the applicability of the device, and accept the system operating parameter measurement and control signal , Realize algorithm generation, human-computer interaction, operation control, parameter setting and operation parameters, status display, adaptive frequency algorithm generation module 4 accepts HMI/PLC integrated program control module 3 control signals and temperature and current feedback signals for operation monitoring , The calculation generates a frequency reference signal, which is fed back to the HMI/PLC integrated program control module 3, and provides a frequency source for the multi-harmonic generation module 5. The multi-harmonic generator of the multi-harmonic generation module 5 effectively covers the frequency 10-500Hz , The multi-harmonic generation module 5 effectively covers a wide range of frequencies, which can improve the application range of the device’s anti-wax and anti-scaling. The multi-harmonic generation module 5 accepts the adaptive frequency algorithm to generate the frequency signal of the module 4, and at the same time monitors the temperature and current according to the operation The feedback signal generates DC pulse signals of different frequencies and pulse widths, provides multi-harmonic vector magnetic field control signals, and transmits stable output to the IGBT drive and harmonic power generation module 6, which accepts multiple harmonics. The control signal of the generated module 5 is sent to the IGBT module through the isolation drive circuit, the digital harmonic vector magnetic field signal is power amplified, and the active power digital harmonic vector magnetic field current source is provided, which is transmitted to the electromagnetic conversion coil.

When working, the crude oil medium flows through the non-magnetically permeable pressure-bearing medium transportation pipeline 10, and sequentially passes through the front-end electromagnetic harmonic conversion and parameter detection system 7, the central electromagnetic harmonic conversion and parameter detection system 8, and the back-end electromagnetic harmonic conversion and parameter detection system. Detection system 9, front-end electromagnetic harmonic conversion and parameter detection system 7, central electromagnetic harmonic conversion and parameter detection system 8 and back-end electromagnetic harmonic conversion and parameter detection system 9 The parameter detection device in the 9 will pass the temperature parameter of the crude oil medium The working parameters of the electromagnetic conversion coil are fed back to the HMI/PLC integrated program control module 3. Through the HMI/PLC integrated program control module 3, algorithm generation, human-computer interaction, operation control, parameter setting, and operation parameter and status display are realized. The adaptive frequency algorithm generation module 4 accepts the HMI/PLC integrated program control module 3 control signal and the temperature and current feedback signals of the operation monitoring, calculates and generates the frequency reference model, and feeds it back to the HMI/PLC integrated machine 12 at the same time, and is multi-harmonic The generation module 5 provides a frequency source. The multi-harmonic generation module 5 generates DC pulse signals of different frequencies and pulse widths according to the temperature and current feedback signals monitored by the operation, provides a multi-harmonic vector magnetic field control signal, and transmits the stable output to the IGBT drive and Harmonic power generation module 6, through IGBT drive and harmonic power generation module 6, drive front-end electromagnetic harmonic conversion and parameter detection system 7, central electromagnetic harmonic conversion and parameter detection system 8 and back-end electromagnetic harmonic conversion and parameter detection system 9 Cooperate to produce high-power harmonic magnetic fields with different optimal vectors, which act on crude oil media at different distances, which can realize real-time monitoring of the temperature of the crude oil media in the non-magnetic pressure-bearing media pipeline and the front-end electromagnetic harmonic conversion and parameters The operating parameters of the detection system, the central electromagnetic harmonic conversion and parameter detection system and the back-end electromagnetic harmonic conversion and parameter detection system are controlled by the HMI/PLC integrated program control module in the integrated machine according to different temperatures and well conditions, and adaptive Frequency algorithm generation module, multi-harmonic generation module, IGBT drive and harmonic power generation module control the frequency and magnetic field strength of the magnetic field, and adjust the magnetization distance to increase the scope of application of the device for wax and anti-scaling, and improve the device after wax and anti-scaling The corrosion inhibition effect.

The embodiments of the present invention are described above with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of the present invention, many forms can be made without departing from the purpose of the present invention and the protection scope of the claims, and these all fall within the protection of the present invention.

Claims

The crude oil production pipeline full-sweep electromagnetic anti-wax scale and corrosion inhibition device, including a non-magnetically conductive pressure-bearing medium transportation pipeline (10), characterized in that: the outer wall of the non-magnetically conductive pressure-bearing medium transportation pipeline (10) is sequentially sheathed The front-end electromagnetic harmonic conversion and parameter detection system (7), the central electromagnetic harmonic conversion and parameter detection system (8), and the back-end electromagnetic harmonic conversion and parameter detection system (9) are connected to the front-end electromagnetic harmonic conversion. And the parameter detection system (7), the central electromagnetic harmonic conversion and parameter detection system (8) and the back-end electromagnetic harmonic conversion and parameter detection system (9) are composed of electromagnetic conversion coil and parameter detection device, and the front-end electromagnetic harmonic The magnetic field generated by the electromagnetic conversion coil in the conversion and parameter detection system (7), the central electromagnetic harmonic conversion and parameter detection system (8) and the back-end electromagnetic harmonic conversion and parameter detection system (9) is a stepped harmonic magnetic field. The active vector increases in turn, the front-end electromagnetic harmonic conversion and parameter detection system (7), the central electromagnetic harmonic conversion and parameter detection system (8) and the back-end electromagnetic harmonic conversion and parameter detection system (9) All the parameter detection devices are electrically connected to the HMI/PLC integrated machine (12);

The HMI/PLC integrated machine (12) is provided with a power filter isolation step-down module (1), a control and main power adapter module (2), an HMI/PLC integrated program control module (3), and an adaptive frequency algorithm The generation module (4), the multi-harmonic generation module (5) and the IGBT drive and harmonic power generation module (6). The power filter isolation step-down module (1) consists of a filter circuit, a step-down isolation transformer and an AC-DC The output end of the power filter isolation step-down module (1) is electrically connected to the control and main power adapter module (2), and the output end of the control and main power adapter module (2) is electrically connected to the HMI/ PLC integrated program control module (3), adaptive frequency algorithm generation module (4), multi-harmonic generation module (5) and IGBT drive and harmonic power generation module (6), the HMI/PLC integrated program control The module (3) is electrically connected with the adaptive frequency algorithm generation module (4), and the HMI/PLC integrated program control module (3) receives the front-end electromagnetic harmonic conversion and parameter detection system (7), the central electromagnetic harmonic conversion and parameters The detection system (8) and the back-end electromagnetic harmonic conversion and parameter detection system (9) feedback the detection signal based on the temperature parameters of the passing crude oil medium and the working parameters of the electromagnetic conversion coil from the parameter detection device, and the adaptive frequency algorithm generation module (4) Accept the HMI/PLC integrated program control module (3) Control signal and the temperature and current feedback signal of operation monitoring, calculate the frequency reference signal, and feed it back to the HMI/PLC integrated machine (12) at the same time, and it is multi-harmonic The generating module (5) provides a frequency source, the output end of the adaptive frequency algorithm generating module (4) is electrically connected to the multi-harmonic generating module (5), and the multi-harmonic generating module (5) receives the adaptive frequency algorithm generating The frequency signal of the module (4) simultaneously generates DC pulse signals of different frequencies and pulse widths according to the temperature and current feedback signals of the operation monitoring to provide a multi-harmonic vector magnetic field control signal. The multi-harmonic generation module (5) The output terminal is electrically connected to the IGBT drive and harmonic power generation module (6), and the IGBT drive and harmonic power generation module (6) is electrically connected to the front-end electromagnetic harmonic conversion and parameter detection system (7), the central electromagnetic harmonic conversion and The electromagnetic generating coils in the parameter detection system (8) and the back-end electromagnetic harmonic conversion and parameter detection system (9) generate high-power harmonic magnetic fields of different vectors, which act on the crude oil medium at different distances respectively.
The crude oil production pipeline full-sweep electromagnetic anti-wax scale and corrosion inhibitor according to claim 1, characterized in that: the front-end electromagnetic harmonic conversion and parameter detection system (7), central electromagnetic harmonic conversion and parameter detection The outer walls of the system (8) and the back-end electromagnetic harmonic conversion and parameter detection system (9) are respectively wrapped with armored protective covers (13).
The crude oil production pipeline full-sweep electromagnetic anti-wax scale and corrosion inhibitor according to claim 1, characterized in that: the front-end electromagnetic harmonic conversion and parameter detection system (7), central electromagnetic harmonic conversion and parameter detection An electric heating coil (14) is fixedly installed between the system (8) and the back-end electromagnetic harmonic conversion and parameter detection system (9).
The crude oil extraction and transportation pipeline full-sweep electromagnetic anti-wax scale and corrosion inhibitor according to claim 3, characterized in that: the front-end electromagnetic harmonic conversion and parameter detection system (7), the central electromagnetic harmonic conversion and parameter detection The system (8), the back-end electromagnetic harmonic conversion and parameter detection system (9) and the electric heating coil (14) are wrapped in a sealed casing (15).
The crude oil extraction and transportation pipeline full-sweep electromagnetic anti-wax, scale and corrosion inhibitor according to claim 4, characterized in that: the sealed casing (15) is filled with a heat-insulating and waterproof filling layer (16).
The crude oil extraction and transportation pipeline full-sweep electromagnetic anti-wax scale and corrosion inhibitor according to claim 1, characterized in that: the HMI/PLC integrated program control module (3) is provided with a system algorithm control software (11) .
The crude oil production pipeline full-sweep frequency electromagnetic anti-wax scale and corrosion inhibitor according to claim 1, characterized in that: the multi-harmonic generator of the multi-harmonic generation module (5) effectively covers a frequency of 10-500 Hz.