RU2459136C2 - Method to monitor pipeline corrosion and device for its realisation - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: device to monitor pipeline corrosion comprises the first module of diagnostics of a pipeline physical state designed for installation inside the pipeline, and the second module of diagnostics of a pipeline physical state designed for installation outside the pipeline, a unit to couple specified modules with the industrial Ethernet network, at least two channels to measure corrosion speed, a coupling unit and a controller connected to the industrial Ethernet network, a panel to control pipeline corrosion monitoring, a data base server and a server converting Ethernet network data into a form clear for any specified controller. The method to monitor pipeline corrosion includes measurements of medium parameters by means of sensors installed in points of observation in accordance with measurement charts and speeds of pipeline corrosion. To measure the specified parameters, the proposed device is used.

EFFECT: higher accuracy of corrosion defect dislocation of corrosion defects and higher efficiency of system functioning.

2 cl, 4 dwg

Description

Technical field

The claimed invention, which is a method for monitoring pipeline corrosion and a device for its implementation, relates to the field of ensuring trouble-free operation of pipeline transport, diagnostics and monitoring of corrosion defects of various types and locations.

State of the art

A known method for identifying sections of the pipeline susceptible to stress corrosion cracking, including measuring characteristic parameters, which use the depth of the pipeline in the soil, the direction of its axis, the level of groundwater, the hydrogen content in the soil surrounding the pipeline and the temperature of the pipe, on discrete sections of the pipeline , analysis of the measured parameters by constructing volumetric models of the location of the pipeline and using calculation models of voltage no-deformed state of the pipeline, which predicts monitoring of areas of possible manifestations of stress corrosion cracking to improve the accuracy of predicting the location of leaks in the pipeline (see patent RU 2262634, IPC7 F16L 58/00. Method for identifying sections of the pipeline predisposed to stress corrosion cracking / Yu. A. Korolev (RU), V.A. Nesterov (RU), A.A. Smirnov (RU), N.V. Alfeev (RU), I.A. Tychkin (RU). - 2004107421/06; Claim 03/15/2004; Publ. 10/20/2005).

The reasons that impede the achievement of the technical result indicated below when using this method (patent RU 2262634) include the fact that this method does not take into account statistical data on pipeline failures, predicts the operability of the pipeline only on the basis of theoretical calculations of its stress-strain state and measurement of the parameters of the pumped and external environments. Moreover, the method does not take into account the different development over time of different types of corrosion defects.

The closest in combination of features to the claimed method is a method of increasing the resource of safe operation of metal structures of trunk pipelines located at the bottom of deep-water reservoirs, based on calculations of the strength of the elements of metal structures, instrumental determination of the sizes of the elements of metal structures and their subsequent strengthening, in which the analysis is carried out first design documentation for metal structures, as a result of which t types and sizes of profiles of elements of metal structures, the obtained data are processed, strength calculation is carried out at design sizes of elements of metal structures for standard and permanent loads, as a result of which the calculated operational and permissible stresses are determined in the elements of metal structures, a measurement map is formed and instrumental inspection of elements of metal structures using a measurement map, which results in verification the conformity of the examined profiles to the design, establish the loads not provided for by the design documentation, and carry out instrumental determination of the parameters of the elements of metal structures, then process the results recorded during the instrumental examination in the measurement map, and on its basis calculate the strength of the elements of metal structures, as a result of which determine the calculated operational stresses in the elements of metal structures, compare them with permissible stresses by measurements, determine the elements of metal structures for which the calculated operational stresses exceed the permissible ones, determine for elements of metal structures the values of the maximum corrosion rate, allowable wear and tear, when establishing loads not specified in the design documentation, additionally determine the physical parameters of the external environment with their subsequent correction when changes in the physical parameters of the environment during operation continuously and in cycles, while determining the degree of the effect on the metal structure of the dynamic characteristics of the transported product and the external environment when changing their physical parameters by instrumental examination using sensors placed on the external and internal surfaces of the structure moving inside the hollow parts of the structure in the stream of the transported product at a speed equal to or less than the flow velocity, and along metal structure placement routes with synchronization of measured parameters from a single real-time clock system and calendar with the determination of the planning altitude and geographical coordinates and the measurement of linear displacement, angular velocity, frequency and amplitude of vibration at the butt sections, and the degree of impact is judged by comparing the design documentation data and the measured physical quantities by clustering the number of simulations before and after the impact with entering the received the results in the map of measurements for subsequent processing, on the basis of which the calculation of the residual strength of the structure, while measuring physical parameters moat external environment is performed by sensors placed at the observation points located at different levels in the horizontal and vertical planes of the external environment, and placed stationarily on mobile offshore facilities with additional registration signals artificial acoustic anomalies in the aqueous medium and the acoustic impedance of the bottom layers (see. patent RU 2279651, IPC G01M 3/00, G01N 29/00. A way to increase the resource for the safe operation of metal structures / V.A. Avdonyushkin (RU), P.G. Brodsky (RU), A.N. Dobrotvorsky (RU), B.I. Loboiko (RU), V.V. Chernyavets ( RU), S.V. Yatsenko (RU). - 2004134830/28; Claim 11/29/2004; Publ. 07/10/2006).

The technical result of this method is to expand the functionality and increase the reliability of determining allowable wear and tear.

This method is adopted as a prototype. The reasons that impede the achievement of the technical result indicated below when using this method (patent RU 2279651) include the fact that this method does not take into account statistical data on pipeline failures, and does not take into account the influence of the hydrodynamic regime of the fluid flow transported through the pipeline on the internal corrosion surface of the pipeline , the method does not provide a forecast of the development of corrosion defects by the rate of change of the pipeline corrosion.

A known corrosion parameter meter containing a primary converter of informative values into electrical signals, a non-volatile memory module and a power source located in the housing, electrical connectors, a temperature sensor, a signal preprocessing unit, a multi-channel analog-to-digital converter, a power controller, a keyboard, a display, a real clock time and heating element, microprocessor, sealed protective box (see patent RU 2225594, IPC7 G01D 9/00, G01N 17/00, G01N 27/20. Measuring instrument of parameters orrosia / V.A. Blokhin (RU). - 2003111578/28; Declared April 21, 2003; Published March 10, 2004).

This meter does not have functional flexibility, the rigid structure of the meter, a limited number of measuring transducers do not provide the necessary monitoring accuracy, the lack of devices for preliminary analysis of the corrosion state of the pipeline reduces the efficiency of the device.

The closest set of features to the claimed device is a system for monitoring and protecting pipelines from corrosion, containing a control object - a pipeline, from two to eight independent control channels, each of which contains a corrosion rate sensor containing a corrosion measuring transducer and a device for interfacing sensor signals, and an actuator for introducing an inhibitor, comprising a dispenser and a device for interfacing the signals of the dispenser, a microcontroller is inserted into each channel of the system, connected with the control device, processing and storage of information - a computer through a radio relay communication device (see patent RU 2200895, MPK7 E16L 58/00. System for monitoring and protection of pipelines against corrosion / A.M. Pugin (RU), N.V. Golovanov (RU), M.A. Khlyustin, V.T. Galyautdinov (RU). - 2001116298/06; Declared June 13, 2001; Published March 20, 2003).

This system is adopted as a prototype. Its disadvantages are that the system does not have the necessary functional flexibility and reliability, has a limited number of measurement channels, the exchange of information on the control and data buses does not provide monitoring of an extended object, the lack of time synchronization and sequential channel polling is associated with significant time delays and temporary cycle instability survey, which leads to inaccuracy in determining the location of corrosion defects, the absence of blocks of preliminary analysis of corrosion melting the pipeline also reduces the efficiency of the system.

SUMMARY OF THE INVENTION

Therefore, the claimed invention is aimed at eliminating the above disadvantages and has a significant expansion of functionality. Therefore, the achieved technical result, on the whole, is to provide reliable control of corrosion formations in the pipeline body in real time, to simulate and control hydrodynamic processes, predict corrosion, comply with the technological parameters of pipeline operation and oil and gas production. By controlling the corrosion processes through corrosion monitoring, high results are achieved in reducing the specific accident rate of pipelines, extending the life of pipelines, reducing the risk of environmental disasters and increasing economic efficiency (see Figs. 3, 4).

In a first aspect of the claimed invention, there is provided a method for monitoring pipeline corrosion, which comprises the steps of its implementation, according to which:

- collect information regarding the main technical and operational parameters of pipeline systems, the characteristics of aggressive media transported through pipeline systems, statistics on the accident rate of the pipeline system and data on technical diagnostics;

- determine, in accordance with the information collected, the operational stresses in the pipeline elements, compare them with the permissible stresses, and install the pipeline elements with a load not provided for in the design documentation;

- also, in accordance with the collected information, a computerized calculation of the hydrodynamic flow regimes of the liquids transported by this system is carried out, followed by calculation of the corrosion rates of pipelines in various sections, and on such a computerized calculation, the collected initial data are processed, a schematic technological diagram of the pipeline system is constructed and calculated the corrosion rate of pipes in all areas linked to the terrain, taking into account its topography by means of GIS technology;

- allocate, in accordance with the above computerized calculation, sections of the pipeline system that transport medium and highly aggressive environments and require technological or special corrosion protection methods;

- confirm, in accordance with the selected sections of the pipeline system, the calculated and statistical data on the rate (corrosion of the pipeline using laboratory methods, for which samples of produced water are taken from sections of the pipeline system that are characterized by the highest specific frequency of gusts, and / or the estimated corrosion rate of which exceeds 0.1 mm / year, the chemical composition of the samples is analyzed and a laboratory assessment of aggressiveness is carried out, if the indicators of environmental aggressiveness obtained in the laboratory If these conditions allow us to classify it as medium- or highly aggressive, then this is considered confirmation of the correctness of the calculation and a sufficient basis for continuous monitoring of corrosion in these areas;

- locate the corrosion monitoring nodes on the corrosion-hazardous sections of the pipelines in accordance with the above calculated and statistical data on the corrosion rate of the pipeline, and the number of such corrosion nodes will depend on the number of such corrosion-hazardous sections and their length;

- choose, in accordance with the located corrosion monitoring nodes on the corrosion-hazardous sections of pipelines, corrosion measuring instruments, taking into account the type of corrosion, the rate of development of corrosion defects and the hydrodynamic mode of transport of pipeline products;

- in accordance with the selected elements of the pipeline, with the corrosion control units located and the selected technical means of measuring corrosion, form a measurement map that lists the monitored parameters, the sequence of control, the volume of control, the means of control, the flowchart for measuring the controlled parameters and the norms for evaluating the results of control;

- in accordance with the measurement map measure the parameters of the environment;

- in accordance with a unified system of real-time clocks, the measured environmental parameters are synchronized; and they monitor corrosion on an ongoing and systematic basis through a system of measuring instruments.

In addition, in particular, they additionally confirm the correctness of determining the corrosion rate using a laboratory assessment of the aggressiveness of the environment in accordance with which: they take samples, determine the pH, ionic composition, the content of dissolved corrosive gases (carbon dioxide, hydrogen sulfide) and oxygen, the content iron (II +) and (III +) in produced water, and also measure the corrosion rate in model corrosive aggressive environments "bubble test" and determine the current parameters or voltammetric character Veristics in an electrically conductive medium using potentiostats and Linear Polarization Resistance sensors.

And also, in particular, they additionally select corrosion measuring instruments taking into account the types and rate of development of corrosion defects located in the immediate vicinity of the observation point.

In a second aspect of the claimed invention, there is provided a pipeline corrosion monitoring device comprising a pipeline, characterized in that a diagnostic module for the internal physical state of the pipeline is located inside the pipeline, and an external diagnostic module for the external physical state of the pipeline is located outside the pipeline, which are connected to the industrial Ethernet network through the interface unit In addition, there are n channels for measuring the corrosion rate, where n is directly proportional to the length of the pipeline, each of which contains a series-connected measuring transducer, interface unit and controller, the controller of each n-th channel measuring corrosion rate is also connected to the industrial Ethernet network, and the measuring converter of each n-th channel measuring corrosion rate is also connected to the pipeline, except In addition, there are also connected to the industrial Ethernet network: a control panel for monitoring pipeline corrosion, a database server and a server that converts Ethernet network data into understandable to the controllers of each nth channel for measuring the corrosion rate.

Brief Description of the Drawings

The above aspects, features and advantages of specific embodiments of the present invention should become apparent from the following detailed description, taken in conjunction with the accompanying drawings, of which:

figure 1 - device for monitoring corrosion, in other words, a conventional scheme for obtaining and systematizing information that describes interconnected and mutually agreed modules.

A device for monitoring the corrosion of the pipeline (Fig. 1) contains a pipeline (1), a system of measuring equipment (2) with measuring transducers (3) installed in the channels for measuring the corrosion rate (4), a system of corrosion monitoring units (5) with blocks pairing the signal of the converter (6) and controllers (7) installed in the corrosion rate measuring channels (4) and connected in series with the measuring transducers, a process server (8), a database server (9) connected through an industrial network Ethernet (10) with a technological server (8) and a control panel (11), a module (12) for diagnosing the internal physical state of the pipeline, a module (13), for diagnosing the external physical state of the pipeline, which are connected to the industrial network through the interface unit (14) Ethernet Corrosion rate measurement channels are connected to the industrial Ethernet network via controllers. Moreover, the number of measurement channels should be such as to adequately determine the corrosion state of the entire pipeline system, and depends on the length and complexity of the pipeline system; hydrodynamic parameters and pipeline accident statistics.

Figure 2 - implementation of a method for monitoring corrosion.

Diagnostic data for non-destructive testing (figure 2) provide information about the condition of the pipeline body - the presence of factory defects or corrosion-related undesirable loss of pipe metal during its operation (tracking the change in the wall thickness of the pipeline). Due to the length of the period between measurements (6 months or more) and the lack of monitoring of the environment, the diagnosis does not allow for the efficient management of anti-corrosion protection measures. The method of monitoring the corrosion rate allows real-time monitoring of the corrosiveness of the transported media, timely identify and eliminate the causes of negative changes in technological conditions.

The implementation of the invention

In order to be able to control the effectiveness of various anti-corrosion measures in the course of their implementation, it is necessary to have a system that reliably and reliably on an ongoing basis produces information about which corrosion processes occur in pipelines and how quickly they proceed. With such a system of constant monitoring of the corrosion state of pipelines, one can, firstly, characterize the degree of danger of developing corrosion processes that affect the life of the pipelines, and, secondly, directly during the anti-corrosion measure, correlate the costs of these measures with the achieved result.

The only requirement, the fulfillment of which is necessary for such estimates to be reliable, is the constancy and systematic use of the tool for monitoring the corrosion state of the pipeline system. Attempts to assess the corrosion situation on the basis of episodic unsystematic measurements lead to distortion of the real picture and unnecessary costs.

The main product of the introduction of the Corrosion Speed Monitoring System is reliable information on the corrosion hazard of the pipeline system. Based on this information, the owner of the pipeline system can make operational decisions on the use of anti-corrosion measures with a reliable economic assessment of their effectiveness.

The measurement of the corrosion rate in field technological pipelines is customarily made in the following main ways:

- gravimetric method: using exposure of corrosion witness samples (OSK) in a corrosive environment and processing samples before and after exposure;

- the method of linear polarization resistance (SLP or LPR);

- electrical resistance method (ES or ER);

- high resolution electrical resistance method (ESWR or CEION).

Each piping system transporting aggressive liquids can be characterized by a number of parameters that indirectly describe the degree of aggressiveness of the transported medium. The combination of these parameters allows us to characterize the environment by the degree of their aggressive effect on carbon steel:

- pH

- ionic composition

- the content of dissolved corrosive gases (carbon dioxide, hydrogen sulfide) and oxygen,

- iron content (II +) and (III +) in produced water.

Other parameters characterizing corrosion activity:

- measurement of the corrosion rate in model corrosive environments "bubble test";

- current parameters in an electrically conductive medium; potentiodynamic method for determining voltammetric characteristics using potentiostats and linear polarization resistance sensors (LPR);

- determination of erosion activity of transported liquids;

- determination of the number of floating forms of colonies of sulfate-reducing bacteria (BSC);

- determination of the number of attached forms of colonies of sulfate-reducing bacteria.

Each of the existing methods for measuring the corrosion rate of pipeline systems has its advantages and disadvantages or fundamental limitations of its applicability. In this regard, to obtain a complete picture of the corrosion state of the pipeline system, it is necessary to use a combination of all methods and an analytical generalization of the results obtained on them.

The primary analysis is based on statistical data on the accident rate of a pipeline system that has been in operation for quite some time. It is recommended to use data on categorical and non-categorical pipeline failures. “Categorical failure” - a pipeline failure that resulted in an accident (injury or death) or accompanied by fires, these failures are investigated by Rosgostekhnadzor. “Non-categorical failure” - The failure of the pipeline without the above, these failures are investigated according to the taxiway. If the pipeline system has been commissioned recently or the accident of this system is absent, then the analysis tool is modeling - a computerized calculation of the hydrodynamic flow regimes of the fluids transported by this system, followed by calculation of the corrosion rates of pipelines in various sections linked to the terrain with regard to its relief by GIS technology.

- The first stage of the analysis is the collection of data on the characteristics of oilfield facilities and aggressive environments. Characteristics of the facilities - accident rate, oil and produced water productivity, pressure, basic geometric dimensions, temperature. Characteristics of aggressive environments with which the pipeline system contacts: for oil - water cut, density, viscosity, sulfur content, aggressive components, SBB; for produced water - chemical composition, density, salinity, pH, content of aggressive components, SBR.

- The second stage of the analysis is the determination with the highest probability of sections of the pipeline system susceptible to corrosion damage. At this stage, the software product processes the collected source data, builds a schematic process diagram of the pipeline system and calculates the corrosion rate of pipes in all sections. At the same time, sections of the pipeline system that transport medium and highly aggressive fluids are distinguished in accordance with the classification of Tables 2-5 RD 39-0147103-362-85 and require technological or special corrosion protection methods.

- The third stage of the analysis is the experimental confirmation of the calculated and statistical data. To this end, if possible, formation water samples are taken from sections of the pipeline system that are characterized by the highest specific frequency of gusts, and / or whose estimated corrosion rate exceeds 0.1 mm / year. The chemical composition of the samples is analyzed and a laboratory assessment of the aggressiveness of the samples taken is carried out according to the methods of RD 39-3-669-81 or OST 39-099-79, or GOST 9.506-87, as well as by the bubble test method. If the environmental aggressiveness indicators obtained in laboratory conditions allow classifying it as medium or highly aggressive according to RD 39-0147103-362-85, then this is considered confirmation of the correctness of calculation and a sufficient basis for continuous monitoring of corrosion in these areas.

There are cases in which statistics on the high specific frequency of accidents are in conflict with the low aggressiveness of the environment obtained by calculation and laboratory methods. In this case, statistical data takes precedence, and the contradiction observed in this case requires special attention, since corrosion damage in this case develops according to a special mechanism that is not manifested in laboratory methods established by regulatory documents. This means that a more complete analysis of the corrosion problem in such areas with the use of specialized measuring instruments, for example CEION, is required.

The result of the initial analysis is the identification of the most corrosive sections of the pipeline system that require the installation of Technical Measuring Instruments on them, as well as the determination of the required type and number of measuring instruments in these sections. According to the results of the initial analysis of the corrosion state, the number and structure of Corrosion Control Units (CCC) are determined and their systematization is carried out.

The monitoring method is as follows:

To determine the initial state of the pipeline, the diagnostic module for the internal physical state of the pipeline (12) and the diagnostic module for the external physical state of the pipeline (13) are used, which transmit data to the database server (9) through the interface unit (14) (see Fig. 1).

The information obtained using the technical means of measuring the system (2) should adequately describe the corrosion state of the whole pipeline system. For this, it is necessary, firstly, that the measuring transducers (3) are optimally and in sufficient quantities located in this pipeline system. And secondly, the optimal choice of the type of measuring transducers (3) is necessary in accordance with the observed morphology and corrosion rate.

The choice of the installation location of technical measuring instruments is carried out in hazardous areas identified using the diagnostic module (12) and diagnostic module (13). When choosing a place for control nodes in field pipelines, the terrain, the length of the pipeline (1), calculated data on the flow regime of liquids, and accident rate should be taken into account. First of all, measuring transducers (3) are located on low sections of the pipeline route (1) in places of possible formation of water accumulations.

In the presence of emergency gusts of pipeline systems, emergency sections are equipped with measuring devices without fail. Long sections of pipeline systems are equipped with measuring instruments in at least three places - at the beginning, middle and end of the section. Direct selection of installation sites for measuring devices is made on the basis of examination with visits to the identified hazardous sections of the pipeline system. At the same time, relevant documents are drawn up - “Acts of arrangement of the control unit”, which are stored in “Passports of the corrosion rate control units”.

The basis for determining the type of corrosion measuring transducers (3) for installation at a selected location in a section of a pipeline system is information about the accident rate and the hydrodynamic regime of fluid transport at a given location. The characteristics of the regime can be obtained during the initial analysis by calculation or by analyzing the layer-by-layer heterogeneity of the fluid flow, if this place is equipped with a sampler. The control units of system (5) are necessarily equipped with probes with witness samples and samplers to obtain fluid samples for chemical analysis, assess the aggressiveness of the medium, and also to determine the hydrodynamic structure of the fluid flow. For access to low-pressure systems (below 70 atm), an in-line contact input device for sampling the medium and installation of OSK / Sensors CJSC KORMAKO (TU 4271-001-55449-263-2004) are used.

For access to high-pressure systems (up to 240 atm and 400 atm), the OSK / Sensors rigid mounting installation is used - a 2 "nozzle for introducing sensors into the pipe (with permission for use No. РРС 00-21545).

As measuring transducers, we recommend advanced technologies for measuring the mass loss corrosion rate - ER DCU-3 devices and CEION, CORMON devices with permission to use No. РРС 00-21545 of the Federal Service for Ecological, Technological and Nuclear Supervision.

The decision on the choice of types of measuring devices for installation in a given place of the pipeline system is documented by filling out the “Acts of arrangement of the control unit”.

The installation of a certain number and type of measuring transducers (3) in certain places of their installation on the pipeline (1) means the creation of a system of technical equipment (2), which serves to obtain primary information about the corrosion state of the entire pipeline system. The main structural unit of the On-line Monitoring System is the Corrosion Monitoring Node of the system (5), including interface units (6) and controllers (7) connected in series with measuring transducers (3) in corrosion rate measuring channels (4) connected to an industrial Ethernet network through controllers.

The Corrosion Control Nodes System (5) is used to streamline the processes of obtaining, collecting, processing, transmitting and storing information on the corrosion state of the entire pipeline system based on the primary information obtained at several points of this system. The numbering system of control nodes is single-level, which greatly simplifies all actions with the information received. At the same time, pipeline systems for which corrosion rate monitoring is introduced are characterized by a multilevel structure, starting from the pipeline system and ending with the specific pipeline of the system on which the measuring device is installed. This allows a uniform corrosion monitoring database to be maintained.

Each of the Corrosion Control Nodes of the system (5) is assigned a serial number, the numbering of the nodes is end-to-end within one mining or transporting enterprise. The final product of the operational corrosion monitoring system is the target information or a set of data representing the characteristic of the corrosion state of the pipeline system, stored in the database server (9). With a real network implementation of servers, there may be several; the database is thus distributed, and the database management system (DBMS) must fully perform the network service. In reality, DBMSs that make it possible to implement the idea of a “network distributed data warehouse” can be represented, for example, by the Oracle family of software products. The operational monitoring system is based on universal principles of network interaction (IP addressing, independence from the physical characteristics of the signal transmission medium, global coverage), and its user interface is closely integrated with tools for viewing Web pages. The Ethernet interface module (10) is integrated with the server (8), so that Internet data transmitted via Ethernet, TCP / IP or HTTP protocols is converted into a form that is understandable to controllers (7). Built-in web-server provides almost instant data exchange. Thus, in a complex multi-level pipeline corrosion monitoring system, it becomes possible to directly directly access all levels, to each device, smart sensor, I / O module, etc.

A set of advanced communication services is available, available at each level and in each component of the pipeline corrosion monitoring system, both a monitoring system built according to classical hierarchical schemes and a system implemented using only Ethernet technologies.

In the event of a failure of a network node or a segment of a communication line in the traditional scheme, all devices connected to it become inaccessible. Using Ethernet, they remain accessible, at least for remote diagnosis of what happened. There is the possibility of remote programming, configuration and analysis of the health of all devices in the system. In this case, it is possible:

- the use of handheld and portable computers and terminals without special software, mobile phones and other means of communication in addition to traditional means or instead of them, which leads to the mobility of workplaces and personnel;

- use for communication purposes with the corrosion monitoring system of pipelines of the transporter network over unlimited distances;

- development of the existing pipeline corrosion monitoring system, not limited by the number of connected devices.

The information on the corrosion rates in pipeline systems, accumulated and processed using appropriate techniques, is sent to the control panel (11), which provides real-time monitoring of corrosion in real time based on technical and operational maintenance regulations.

Claims (2)

1. A device for monitoring pipeline corrosion, characterized in that it includes a first module for diagnosing the physical condition of the pipeline, intended for location inside the pipeline, and a second module for diagnosing the physical state of the pipeline, intended for location outside the pipeline, an interface unit for said modules with an industrial Ethernet network, at least at least two channels for measuring the corrosion rate, each of which has a series-connected corrosion rate meter, an interface unit and a con roller, which is connected to the industrial network Ethernet, remote control pipeline corrosion monitoring, database server, and a server converts Ethernet network data into a form understandable to said each controller. 2. A method for monitoring pipeline corrosion, including measuring environmental parameters by means of sensors located at the observation points in accordance with the measurement charts and the corrosion rate of the pipeline, characterized in that the device according to claim 1 is used to measure the said parameters.

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