Transient working condition identification method of oil pipeline, electronic equipment and storage medium

Abstract

The invention provides an oil pipeline transient working condition identification method and device, electronic equipment and a storage medium, and the method comprises the steps: inputting the transient working condition boundary condition of a pipeline and the position information of each sensing point on the pipeline into a transient working condition identification model, and outputting a plurality of simulation transient hydraulic data sets through the transient working condition identification model, the simulated transient hydraulic data set is a data set formed by simulated transient hydraulic data of each sensing point on the pipeline when a preset transient accident occurs; the transient accident characterizes that one or more transient points fail; and matching each simulated transient hydraulic data set with the actual transient hydraulic data, and determining the transient accident based on the matching result, so that the identification of the transient accident has higher reliability, and the expansion of transient operation condition data is supported.

Description

Technical Field

[0001] The present invention relates to the technical field of oil pipeline supervision, and in particular to a method for identifying transient operating conditions of an oil pipeline, electronic equipment and a storage medium. Background Art

[0002] With the introduction of concepts such as "intelligent pipelines" and "smart pipeline networks", digital and artificial intelligence technologies have been gradually applied to the construction and operation management of oil and gas pipelines. In the process of digitalization and intelligence of oil and gas pipelines, it is imperative to accurately project the physical entities of the oil and gas pipeline network onto digital entities and establish digital twins. The ultimate manifestation of digital twins is a complete and accurate digital description of physical entities, which can be used to simulate, monitor, diagnose, predict and control the formation process and state of physical entities in the real physical environment. At present, the mathematical representation of the operation process of oil pipelines still has the following problems: (1) It is still impossible to achieve continuous and accurate measurement of the external environmental parameters of the oil pipeline. The traditional mechanism model is difficult to avoid deviations from the actual data of pipeline operation. The amount of daily quasi-steady-state operation data of the oil pipeline is large, but the amount of transient operation data caused by abnormal conditions is small. There is a lack of sufficient data support for the identification of abnormal conditions directly based on transient operation data. (2) Compared with plant systems such as chemical plants, oil pipelines have a large spatial span, complex environmental information along the line, and many related physical parameters. The accuracy of traditional mechanism models in analyzing data and identifying transient faults is low. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a method for identifying transient operating conditions of an oil pipeline, an electronic device and a storage medium.

[0004] In a first aspect, the present invention provides a method for identifying transient operating conditions of an oil pipeline, comprising:

[0005] Inputting the transient working condition boundary conditions of the pipeline and the position information of each sensing point on the pipeline into the transient working condition identification model, the transient working condition identification model outputs a plurality of simulated transient hydraulic data groups, the simulated transient hydraulic data groups are data groups composed of simulated transient hydraulic data of each sensing point on the pipeline when a preset transient accident occurs; the transient accident indicates that one or more transient points have failed;

[0006] Matching each simulated transient hydraulic data set with the actual transient hydraulic data, and determining a transient accident based on the matching result;

[0007] The transient operating condition identification model represents the relationship between the environmental parameters along the pipeline, the flow physical parameters of the medium in the pipeline and the transient hydraulic data.

[0008] In one embodiment, the method further includes: obtaining the transient operating condition identification model, including:

[0009] Acquire the actual transient hydraulic data of each sensing point on the pipeline in the quasi-steady-state operation process, and simulate the key independent variable physical parameters along the pipeline based on the actual transient hydraulic data; the key independent variable physical parameters include the inner wall pressure of the pipeline, the friction coefficient between the pipeline oil and the inner wall, the thermal conductivity between the pipeline oil and the environment, and the ambient temperature along the pipeline;

[0010] According to the inner wall pressure of the pipeline, the friction coefficient between the pipeline oil and the inner wall, the thermal conductivity between the pipeline oil and the environment, the ambient temperature along the pipeline, and the transient working condition boundary conditions, determine the simulated transient hydraulic data when any position point along the pipeline is used as a transient point;

[0011] determining a validation data set based on the simulated transient hydraulic data;

[0012] The hydraulic loss factors and thermal loss factors of the pipeline are quantified, and the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline are converted to obtain the pipeline transient flow mechanism model based on the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline; the pipeline transient flow mechanism model characterizes the relationship between the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline;

[0013] Obtain the actual physical quantities of environmental parameters along the pipeline and flow physical parameters of the medium in the pipeline;

[0014] Inputting the variation curve of the actual physical quantity and the transient hydraulic data of the pipeline into the transient flow mechanism model of the pipeline for fusion, and determining the initial transient working condition identification model;

[0015] The initial transient operating condition identification model is updated and verified using the verification data set to determine the transient operating condition identification model.

[0016] In one embodiment, determining a validation data set based on the simulated transient hydraulic data comprises:

[0017] Obtain actual transient hydraulic data when a fault occurs at the transient point;

[0018] The actual transient hydraulic data when the transient point fails is compared with the corresponding simulated transient hydraulic data, and based on the comparison result, it is determined whether the simulated transient hydraulic data is divided into the verification data set until the number of simulated transient hydraulic data in the verification data set reaches a preset value.

[0019] In one embodiment, the method further comprises:

[0020] The simulated transient hydraulic data that are not included in the validation data set are used as the actual transient hydraulic data under the quasi-steady-state operation process, and the key independent variable physical parameters along the pipeline are re-simulated based on the new actual transient hydraulic data; then, based on the re-obtained key independent variable physical parameters and transient operating boundary conditions, the simulated transient hydraulic data when any position point along the pipeline is used as a transient point is determined.

[0021] In a second aspect, the present invention provides a transient operating condition identification device for an oil pipeline, comprising:

[0022] A processing module, used for inputting the transient working condition boundary conditions of the pipeline and the position information of each sensing point on the pipeline into a transient working condition identification model, and the transient working condition identification model outputs a plurality of simulated transient hydraulic data groups, wherein the simulated transient hydraulic data group is a data group composed of simulated transient hydraulic data of each sensing point on the pipeline when a preset transient accident occurs; the transient accident indicates that one or more transient points have failed;

[0023] A determination module, used to match each simulated transient hydraulic data group with the actual transient hydraulic data, and determine the transient accident based on the matching result;

[0024] The transient operating condition identification model represents the relationship between the environmental parameters along the pipeline, the flow physical parameters of the medium in the pipeline and the transient hydraulic data.

[0025] In a third aspect, the present invention provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the method for identifying transient operating conditions of an oil pipeline as described in any one of the first aspects are implemented.

[0026] In a fourth aspect, the present invention provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method for identifying transient operating conditions of an oil pipeline as described in any one of the first aspects.

[0027] The transient operating condition identification method, electronic device and storage medium of the oil pipeline provided by the present invention enable the transient operating condition identification model to output multiple simulated transient hydraulic data groups corresponding to different transient accidents under the constraints of the transient operating condition boundary conditions of the pipeline, and match them with the actual transient hydraulic data, and determine the transient accident based on the matching results, so that the identification of transient accidents has higher reliability and supports the expansion of transient operating condition data. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic flow chart of a method for identifying transient operating conditions of an oil pipeline provided by the present invention;

[0030] Figure 2 It is a structural schematic diagram of the transient operating condition identification device for an oil pipeline provided by the present invention;

[0031] Figure 3 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Combine the following Figures 1 to 3 The invention describes a method, device, electronic equipment and storage medium for identifying transient operating conditions of an oil pipeline.

[0034] Figure 1 A schematic diagram showing a flow chart of a method for identifying transient operating conditions of an oil pipeline provided by the present invention is shown in FIG. Figure 1 , the method comprising:

[0035] 11. Input the transient working condition boundary conditions of the pipeline and the position information of each sensing point on the pipeline into the transient working condition identification model, and the transient working condition identification model outputs a plurality of simulated transient hydraulic data groups, wherein the simulated transient hydraulic data group is a data group composed of simulated transient hydraulic data of each sensing point on the pipeline when a preset transient accident occurs; a transient accident indicates that one or more transient points have failed;

[0036] 12. Match each simulated transient hydraulic data group with the actual transient hydraulic data, and determine the transient accident based on the matching results;

[0037] Among them, the transient operating condition identification model characterizes the relationship between the environmental parameters along the pipeline, the flow physical parameters of the medium in the pipeline and the transient hydraulic data.

[0038] Regarding step 11 and step 12, it should be noted that, in the present invention, the oil pipeline is used to transport oil products. The oil pipeline is generally buried underground, and in special cases it may be placed on the ground. In order to ensure the safety of oil transportation, it is necessary to identify the possible faults of the oil pipeline so as to further detect the fault location and eliminate it in time when an actual fault is encountered. Different sensing points are set on the pipeline, and there are many types of sensing points, such as pressure sensors, temperature sensors, fluid velocity sensors, etc. The location of the sensing point of the pipeline also needs to be clear.

[0039] Since the amount of daily quasi-steady-state operation data of the pipeline is large, but the amount of transient operation data caused by abnormal conditions (such as leakage) is small, there is a lack of sufficient data support for abnormal condition identification based directly on transient operation data. Therefore, it is necessary to simulate the transient conditions of the pipeline through a transient condition identification model to output a simulated transient hydraulic data group and increase the amount of transient operation data. In the present invention, the transient condition identification model characterizes the relationship between the environmental parameters along the pipeline, the flow physical parameters of the medium in the pipeline, and the transient hydraulic data. Transient hydraulic data include the flow velocity, temperature and pressure of the medium on the inner wall of the pipeline.

[0040] In the present invention, the transient operating boundary conditions of the pipeline refer to the fault information of the transient point and the operating status of each device on the pipeline when a transient accident occurs in the pipeline, such as the location of the pipeline leak, the size of the leak hole, the start / stop pump on the pipeline, and the current status of the on / off valve.

[0041] In the present invention, based on the above-mentioned interrelationships, after inputting the transient operating boundary conditions and the position information of each sensing point on the pipeline, the model outputs a simulated transient hydraulic data group. The simulated transient hydraulic data group is a data group composed of simulated transient hydraulic data of each sensing point on the pipeline when a preset transient accident occurs. The transient accident characterizes a failure of one or more transient points.

[0042] In the present invention, each simulated transient hydraulic data group is matched with the actual transient hydraulic data, and a transient accident is determined based on the matching result. It should be noted that the simulated transient hydraulic data groups all represent data when one or more transient points fail. These data are matched with the actual transient hydraulic data to obtain a matching degree. When the matching degree reaches a certain requirement, it can be determined that the situation where one or more transient points fail is suitable for the actual transient hydraulic data, so that a transient accident is determined.

[0043] The transient operating condition identification method of the oil pipeline provided by the present invention enables the transient operating condition identification model to output multiple simulated transient hydraulic data groups corresponding to different transient accidents under the constraints of the transient operating condition boundary conditions of the pipeline, and matches them with the actual transient hydraulic data, and determines the transient accident based on the matching result, so that the identification of transient accidents has higher reliability and supports the expansion of transient operating condition data.

[0044] In a further method of the above method, the process of obtaining the transient condition identification model is explained as follows:

[0045] The actual transient hydraulic data of each sensing point on the pipeline in the quasi-steady-state operation process is obtained, and the key independent variable physical parameters along the pipeline are simulated based on the actual transient hydraulic data; the key independent variable physical parameters include the inner wall pressure of the pipeline, the friction coefficient between the pipeline oil and the inner wall, the thermal conductivity between the pipeline oil and the environment, and the ambient temperature along the pipeline;

[0046] According to the inner wall pressure of the pipeline, the friction coefficient between the pipeline oil and the inner wall, the thermal conductivity between the pipeline oil and the environment, the ambient temperature along the pipeline, and the transient working condition boundary conditions, determine the simulated transient hydraulic data when any position point along the pipeline is used as a transient point;

[0047] Determine the validation data set based on simulated transient hydraulic data;

[0048] The hydraulic loss factors and thermal loss factors of the pipeline are quantified and converted to obtain the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline. Based on the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline, a pipeline transient flow mechanism model is constructed; the pipeline transient flow mechanism model characterizes the relationship between the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline;

[0049] Obtain the actual physical quantities of environmental parameters along the pipeline and flow physical parameters of the medium in the pipeline;

[0050] Input the change curves of actual physical quantities and pipeline transient hydraulic data into the pipeline transient flow mechanism model for fusion, and determine the initial transient operating condition identification model;

[0051] The initial transient condition identification model is updated and verified using the verification data set to determine the transient condition identification model.

[0052] In this regard, it should be noted that, in the present invention, based on the actual data of the quasi-steady-state operation of the pipeline, the key independent variable physical parameters along the pipeline are inverted. That is, the actual transient hydraulic data of each sensing point on the pipeline in the quasi-steady-state operation process is obtained, and the key independent variable physical parameters along the pipeline are inverted based on the actual transient hydraulic data.

[0053] Because the measurement data of each sensing point on the pipeline is obtained by instruments distributed in a "point" manner, it only represents the data at the sensing point location. The pipeline here refers to the operation data of the entire pipeline. That is, through partial data, the physical parameters of various key independent variables along the pipeline are inverted and calculated.

[0054] In the present invention, the key independent variable physical parameters include the inner wall pressure of the pipeline, the friction coefficient between the pipeline oil product and the inner wall, the thermal conductivity between the pipeline oil product and the environment, and the ambient temperature along the pipeline.

[0055] Since the key independent variable physical parameters along the pipeline are all known, the simulated transient hydraulic data when any position along the pipeline is used as a transient point is determined based on the pipeline inner wall pressure, the friction coefficient between the pipeline oil and the inner wall, the thermal conductivity between the pipeline oil and the environment, the ambient temperature along the pipeline, and the transient operating boundary conditions.

[0056] A validation data set is then determined based on simulated transient hydraulic data at transient points for multiple cases.

[0057] The hydraulic loss factors and thermal loss factors of the pipeline are quantified and converted to obtain the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline. Based on the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline, a pipeline transient flow mechanism model is constructed; the pipeline transient flow mechanism model characterizes the relationship between the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline.

[0058] Consider the mutual influence of hydraulics and thermals, that is, when the temperature of the medium changes, the density and viscosity of the medium will also change, and the friction loss will also change, which will affect the flow rate and flow velocity changes. Moreover, the change of flow rate and flow velocity will cause the friction loss to change, which will also affect the temperature. Thermal loss factors include heat flux density, friction coefficient, flow velocity, pipe diameter, density, time, specific heat, temperature, equivalent heat transfer coefficient, etc. Pipeline hydraulic loss factors include time, pipe diameter, pipe length, pressure, flow velocity, density, friction coefficient, pressure wave velocity, bulk elastic modulus and other parameters.

[0059] The hydraulic loss factors and thermal loss factors of the pipeline are quantified and converted to obtain the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline. Based on the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline, a pipeline transient flow mechanism model is constructed.

[0060] It should be noted that there are hydraulic loss factors (such as friction along the pipeline, local friction, etc.) and thermal loss factors (such as soil temperature along the pipeline, atmospheric temperature changes, precipitation, etc.) along the pipeline. Some factors can be monitored, but most of the influencing factors cannot be monitored. Therefore, they need to be quantified (these factors are equivalent to certain parameters to simplify the processing). For example, there are too many factors that affect the thermal loss along the pipeline, which are processed into parameters such as the medium temperature around the pipeline and the thermal conductivity of the soil.

[0061] In the present invention, the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline include the density, flow velocity, temperature, elastic coefficient, friction coefficient, pipe diameter, elastic modulus of the pipe, wall thickness, soil temperature, pressure, etc. of the medium.

[0062] The transient flow mechanism model of pipeline consists of thermal model and hydraulic model. The thermal model includes parameters such as density, flow rate, temperature, elastic coefficient, friction coefficient of the medium, and the hydraulic model includes parameters such as pipe diameter, elastic modulus of pipe material, wall thickness, soil temperature, pressure, etc. Its construction method is as follows: 1. Calculate the flow rate, pressure and temperature under quasi-steady-state conditions; 2. Under certain transient conditions, use the temperature in 1 as the calculation value to calculate the viscosity, density, friction coefficient of the medium, etc., and use the hydraulic model in the model to calculate the flow rate and pressure; 3. Use the flow rate and pressure calculated in 2 to calculate the temperature under transient conditions using the thermal model in the model; 4. Use the temperature calculated in 3 to repeat step 2 to calculate the flow rate and pressure; repeat steps 2, 3, and 4, iterate the calculation repeatedly to reach the specified accuracy threshold, and complete the model construction.

[0063] In the present invention, actual physical quantities of environmental parameters along the pipeline and flow physical parameters of the medium in the pipeline are collected and acquired.

[0064] The change curves of actual physical quantities and pipeline transient hydraulic data are input into the pipeline transient flow mechanism model for fusion to determine the initial transient operating condition identification model. The transient operating condition identification model is used to characterize the relationship between the environmental parameters along the pipeline, the flow physical parameters of the medium in the pipeline, and the transient hydraulic data.

[0065] The initial transient condition identification model is updated and verified using the verification data set to determine the transient condition identification model.

[0066] In a further method of the above method, the processing of determining the verification data set based on the simulated transient hydraulic data is mainly explained as follows:

[0067] Obtain actual transient hydraulic data when a fault occurs at the transient point;

[0068] The actual transient hydraulic data when a transient point fails is compared with the corresponding simulated transient hydraulic data, and based on the comparison result, it is determined whether the simulated transient hydraulic data is divided into the verification data set until the number of simulated transient hydraulic data in the verification data set reaches a preset value.

[0069] In this regard, it should be noted that, in the present invention, the simulated transient hydraulic data that match the transient operating condition boundary conditions are compared and analyzed with the actual transient hydraulic data, the simulated transient hydraulic data with a high degree of consistency in the comparison result is expanded to the verification data set, and the simulated transient hydraulic data with a low degree of consistency in the comparison result is used as the actual transient hydraulic data under the quasi-steady-state operation process, and the key independent variable physical parameters along the pipeline are re-simulated based on the new actual transient hydraulic data; then, based on the re-obtained key independent variable physical parameters and transient operating condition boundary conditions, the simulated transient hydraulic data when any position point along the pipeline is used as a transient point is determined.

[0070] The degree of match here means that the simulated leakage position matches the actual leakage position, or the simulated closed valve position matches the actual closed valve position, and also includes that the deviation between the simulated data and the actual data is less than a certain value (such as 10%).

[0071] The transient operating condition identification method of the oil pipeline provided by the present invention enables the transient operating condition identification model to output multiple simulated transient hydraulic data groups corresponding to different transient accidents under the constraints of the transient operating condition boundary conditions of the pipeline, and matches them with the actual transient hydraulic data, and determines the transient accident based on the matching result, so that the identification of transient accidents has higher reliability and supports the expansion of transient operating condition data.

[0072] The transient operating condition identification device for an oil pipeline provided by the present invention is described below. The transient operating condition identification device for an oil pipeline described below and the transient operating condition identification method for an oil pipeline described above can be referred to each other.

[0073] Figure 2 FIG. 1 shows a schematic diagram of a transient operating condition identification device for an oil pipeline provided by the present invention. Figure 2 , the device comprises a processing module 21 and a determining module 22, wherein:

[0074] The processing module 21 is used to input the transient working condition boundary conditions of the pipeline and the position information of each sensing point on the pipeline into the transient working condition identification model, and the transient working condition identification model outputs a plurality of simulated transient hydraulic data groups, wherein the simulated transient hydraulic data group is a data group composed of simulated transient hydraulic data of each sensing point on the pipeline when a preset transient accident occurs; a transient accident indicates that one or more transient points have failed;

[0075] A determination module 22, for matching each simulated transient hydraulic data group with the actual transient hydraulic data, and determining a transient accident based on the matching result;

[0076] Among them, the transient operating condition identification model characterizes the relationship between the environmental parameters along the pipeline, the flow physical parameters of the medium in the pipeline and the transient hydraulic data.

[0077] In a further device of the above device, the device further includes an acquisition module for acquiring a transient operating condition identification model, including:

[0078] The actual transient hydraulic data of each sensing point on the pipeline in the quasi-steady-state operation process is obtained, and the key independent variable physical parameters along the pipeline are simulated based on the actual transient hydraulic data; the key independent variable physical parameters include the inner wall pressure of the pipeline, the friction coefficient between the pipeline oil and the inner wall, the thermal conductivity between the pipeline oil and the environment, and the ambient temperature along the pipeline;

[0079] According to the inner wall pressure of the pipeline, the friction coefficient between the pipeline oil and the inner wall, the thermal conductivity between the pipeline oil and the environment, the ambient temperature along the pipeline, and the transient working condition boundary conditions, determine the simulated transient hydraulic data when any position point along the pipeline is used as a transient point;

[0080] Determine the validation data set based on simulated transient hydraulic data;

[0081] The hydraulic loss factors and thermal loss factors of the pipeline are quantified and converted to obtain the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline. Based on the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline, a pipeline transient flow mechanism model is constructed; the pipeline transient flow mechanism model characterizes the relationship between the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline;

[0082] Obtain the actual physical quantities of environmental parameters along the pipeline and flow physical parameters of the medium in the pipeline;

[0083] Input the change curves of actual physical quantities and pipeline transient hydraulic data into the pipeline transient flow mechanism model for fusion, and determine the initial transient operating condition identification model;

[0084] The initial transient condition identification model is updated and verified using the verification data set to determine the transient condition identification model.

[0085] In a further device of the above device, the acquisition module is specifically used in the process of determining the verification data set based on the simulated transient hydraulic data:

[0086] Obtain actual transient hydraulic data when a fault occurs at the transient point;

[0087] The actual transient hydraulic data when a transient point fails is compared with the corresponding simulated transient hydraulic data, and based on the comparison result, it is determined whether the simulated transient hydraulic data is divided into the verification data set until the number of simulated transient hydraulic data in the verification data set reaches a preset value.

[0088] In a further device of the above device, the acquisition module is further used for:

[0089] The simulated transient hydraulic data that are not included in the validation data set are used as the actual transient hydraulic data under the quasi-steady-state operation process, and the key independent variable physical parameters along the pipeline are re-simulated based on the new actual transient hydraulic data; then, based on the re-obtained key independent variable physical parameters and transient operating boundary conditions, the simulated transient hydraulic data when any position point along the pipeline is used as a transient point is determined.

[0090] Since the principle of the device described in the embodiment of the present invention is the same as that of the method described in the above embodiment, a more detailed explanation will not be repeated here.

[0091] The transient operating condition identification device for an oil pipeline provided by the present invention enables a transient operating condition identification model to output multiple simulated transient hydraulic data groups corresponding to different transient accidents under the constraints of the transient operating condition boundary conditions of the pipeline, and matches them with actual transient hydraulic data, and determines the transient accident based on the matching results, so that the identification of transient accidents has higher reliability and supports the expansion of transient operating condition data.

[0092] Figure 3 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 3 As shown, the electronic device may include: a processor 31, a communication interface 32, a memory 33 and a communication bus 34, wherein the processor 31, the communication interface 32 and the memory 33 communicate with each other through the communication bus 34. The processor 31 may call the computer program in the memory 33 to execute the steps of the method for identifying transient operating conditions of an oil pipeline, for example, including: inputting the transient operating condition boundary conditions of the pipeline and the position information of each sensing point on the pipeline into a transient operating condition identification model, and the transient operating condition identification model outputs a plurality of simulated transient hydraulic data groups, wherein the simulated transient hydraulic data group is a data group composed of simulated transient hydraulic data of each sensing point on the pipeline when a preset transient accident occurs; a transient accident indicates that one or more transient points have failed; each simulated transient hydraulic data group is matched with the actual transient hydraulic data, and a transient accident is determined based on the matching result;

[0093] Among them, the transient operating condition identification model characterizes the relationship between the environmental parameters along the pipeline, the flow physical parameters of the medium in the pipeline and the transient hydraulic data.

[0094] In addition, the logic instructions in the above-mentioned memory 33 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0095] On the other hand, the present invention also provides a computer program product, the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, when the program instructions are executed by a computer, the computer can execute the steps of the transient operating condition identification method of the oil pipeline, for example, including: inputting the transient operating condition boundary conditions of the pipeline and the position information of each sensing point on the pipeline into a transient operating condition identification model, the transient operating condition identification model outputs a plurality of simulated transient hydraulic data groups, the simulated transient hydraulic data group is a data group composed of simulated transient hydraulic data of each sensing point on the pipeline when a preset transient accident occurs; the transient accident indicates that one or more transient points have failed; each simulated transient hydraulic data group is matched with the actual transient hydraulic data, and the transient accident is determined based on the matching result;

[0096] Among them, the transient operating condition identification model characterizes the relationship between the environmental parameters along the pipeline, the flow physical parameters of the medium in the pipeline and the transient hydraulic data.

[0097] On the other hand, an embodiment of the present invention further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, wherein the computer program is used to enable the processor to execute the steps of a method for identifying transient operating conditions of an oil pipeline, for example, including: inputting transient operating condition boundary conditions of the pipeline and position information of each sensing point on the pipeline into a transient operating condition identification model, wherein the transient operating condition identification model outputs a plurality of simulated transient hydraulic data groups, wherein the simulated transient hydraulic data group is a data group composed of simulated transient hydraulic data of each sensing point on the pipeline when a preset transient accident occurs; a transient accident characterizes a failure of one or more transient points; each simulated transient hydraulic data group is matched with actual transient hydraulic data, and a transient accident is determined based on the matching result;

[0098] Among them, the transient operating condition identification model characterizes the relationship between the environmental parameters along the pipeline, the flow physical parameters of the medium in the pipeline and the transient hydraulic data.

[0099] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.

[0100] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0101] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for identifying transient operating conditions of an oil pipeline, characterized in that: include: Inputting the transient working condition boundary conditions of the pipeline and the position information of each sensing point on the pipeline into the transient working condition identification model, the transient working condition identification model outputs a plurality of simulated transient hydraulic data groups, the simulated transient hydraulic data groups are data groups composed of simulated transient hydraulic data of each sensing point on the pipeline when a preset transient accident occurs; the transient accident indicates that one or more transient points have failed; Matching each simulated transient hydraulic data set with the actual transient hydraulic data, and determining a transient accident based on the matching result; The transient operating condition identification model represents the relationship between the environmental parameters along the pipeline, the flow physical parameters of the medium in the pipeline and the transient hydraulic data.

2. The method for identifying transient operating conditions of an oil pipeline according to claim 1, characterized in that: The method further includes: obtaining the transient operating condition identification model, including: Acquire the actual transient hydraulic data of each sensing point on the pipeline in the quasi-steady-state operation process, and simulate the key independent variable physical parameters along the pipeline based on the actual transient hydraulic data; the key independent variable physical parameters include the inner wall pressure of the pipeline, the friction coefficient between the pipeline oil and the inner wall, the thermal conductivity between the pipeline oil and the environment, and the ambient temperature along the pipeline; According to the inner wall pressure of the pipeline, the friction coefficient between the pipeline oil and the inner wall, the thermal conductivity between the pipeline oil and the environment, the ambient temperature along the pipeline, and the transient working condition boundary conditions, determine the simulated transient hydraulic data when any position point along the pipeline is used as a transient point; determining a validation data set based on the simulated transient hydraulic data; The hydraulic loss factors and thermal loss factors of the pipeline are quantified, and the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline are converted to obtain the pipeline transient flow mechanism model based on the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline; the pipeline transient flow mechanism model characterizes the relationship between the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline; Obtain the actual physical quantities of environmental parameters along the pipeline and flow physical parameters of the medium in the pipeline; Inputting the variation curve of the actual physical quantity and the transient hydraulic data of the pipeline into the transient flow mechanism model of the pipeline for fusion, and determining the initial transient working condition identification model; The initial transient operating condition identification model is updated and verified using the verification data set to determine the transient operating condition identification model.

3. The method for identifying transient operating conditions of an oil pipeline according to claim 2, characterized in that: The step of determining a verification data set based on the simulated transient hydraulic data comprises: Obtain actual transient hydraulic data when a fault occurs at the transient point; The actual transient hydraulic data when the transient point fails is compared with the corresponding simulated transient hydraulic data, and based on the comparison result, it is determined whether the simulated transient hydraulic data is divided into the verification data set until the number of simulated transient hydraulic data in the verification data set reaches a preset value.

4. The method for identifying transient operating conditions of an oil pipeline according to claim 3, characterized in that: The method further comprises: The simulated transient hydraulic data that are not included in the validation data set are used as the actual transient hydraulic data under the quasi-steady-state operation process, and the key independent variable physical parameters along the pipeline are re-simulated based on the new actual transient hydraulic data; then, based on the re-obtained key independent variable physical parameters and transient operating boundary conditions, the simulated transient hydraulic data when any position point along the pipeline is used as a transient point is determined.

5. A transient operating condition identification device for an oil pipeline, characterized in that: include: A processing module, used for inputting the transient working condition boundary conditions of the pipeline and the position information of each sensing point on the pipeline into a transient working condition identification model, and the transient working condition identification model outputs a plurality of simulated transient hydraulic data groups, wherein the simulated transient hydraulic data group is a data group composed of simulated transient hydraulic data of each sensing point on the pipeline when a preset transient accident occurs; the transient accident indicates that one or more transient points have failed; A determination module, used to match each simulated transient hydraulic data group with the actual transient hydraulic data, and determine the transient accident based on the matching result; The transient operating condition identification model represents the relationship between the environmental parameters along the pipeline, the flow physical parameters of the medium in the pipeline and the transient hydraulic data.

6. The transient operating condition identification device for oil pipeline according to claim 5, characterized in that: The device further includes an acquisition module for acquiring the transient operating condition identification model, including: Acquire the actual transient hydraulic data of each sensing point on the pipeline in the quasi-steady-state operation process, and simulate the key independent variable physical parameters along the pipeline based on the actual transient hydraulic data; the key independent variable physical parameters include the inner wall pressure of the pipeline, the friction coefficient between the pipeline oil and the inner wall, the thermal conductivity between the pipeline oil and the environment, and the ambient temperature along the pipeline; According to the inner wall pressure of the pipeline, the friction coefficient between the pipeline oil and the inner wall, the thermal conductivity between the pipeline oil and the environment, the ambient temperature along the pipeline, and the transient working condition boundary conditions, determine the simulated transient hydraulic data when any position point along the pipeline is used as a transient point; determining a validation data set based on the simulated transient hydraulic data; The hydraulic loss factors and thermal loss factors of the pipeline are quantified, and the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline are converted to obtain the pipeline transient flow mechanism model based on the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline; the pipeline transient flow mechanism model characterizes the relationship between the environmental parameters along the pipeline and the flow physical parameters of the medium in the pipeline; Obtain the actual physical quantities of environmental parameters along the pipeline and flow physical parameters of the medium in the pipeline; Inputting the variation curve of the actual physical quantity and the transient hydraulic data of the pipeline into the transient flow mechanism model of the pipeline for fusion, and determining the initial transient working condition identification model; The initial transient operating condition identification model is updated and verified using the verification data set to determine the transient operating condition identification model.

7. The transient operating condition identification device for oil pipeline according to claim 6, characterized in that: The acquisition module is specifically used in the process of determining the verification data set based on the simulated transient hydraulic data: Obtain actual transient hydraulic data when a fault occurs at the transient point; The actual transient hydraulic data when the transient point fails is compared with the corresponding simulated transient hydraulic data, and based on the comparison result, it is determined whether the simulated transient hydraulic data is divided into the verification data set until the number of simulated transient hydraulic data in the verification data set reaches a preset value.

8. The transient operating condition identification device for oil pipeline according to claim 7, characterized in that: The acquisition module is also used for: The simulated transient hydraulic data that are not included in the validation data set are used as the actual transient hydraulic data under the quasi-steady-state operation process, and the key independent variable physical parameters along the pipeline are re-simulated based on the new actual transient hydraulic data; Then, based on the retrieved physical parameters of the key independent variables and the transient operating boundary conditions, the simulated transient hydraulic data when any point along the pipeline is taken as a transient point is determined.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the method for identifying transient operating conditions of an oil pipeline as claimed in any one of claims 1 to 4 are implemented.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for identifying transient operating conditions of an oil pipeline as claimed in any one of claims 1 to 4 are implemented.

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