An oil and gas pipeline selection and arrangement method, device, equipment and medium

Abstract

The present application belongs to the technical field of pipeline design and manufacture and pipeline construction, and discloses an oil and gas pipeline selection and arrangement method, device, equipment and medium. The method comprises the following steps: S1, obtaining steel pipe performance data and calculating the performance index of the steel pipe; S2, classifying the steel pipe according to the performance index of the steel pipe and marking the performance grade on the steel pipe body; S3, obtaining typical risk factors and scoring, obtaining the typical risk factor score, and then calculating the pipeline typical risk score according to the typical risk factor score; S4, obtaining the operating pressure and design pressure of the pipeline in the pipeline arrangement area and scoring, obtaining the pipeline pressure load risk score; S5, calculating the pipeline overall risk score according to the pipeline typical risk score and the pipeline pressure load risk score, and dividing the pipeline area risk grade; S6, generating a pipeline selection and arrangement scheme according to the pipeline area risk grade and the steel pipe performance grade. The present application combines the steel pipe performance with the environmental factors during pipeline arrangement to improve the pipeline reliability and safety.

Description

Technical Field

[0001] This invention belongs to the field of pipeline design, manufacturing and construction technology, and specifically relates to a method, device, equipment and medium for selecting and laying oil and gas pipelines. Background Technology

[0002] With the rapid development of oil and gas pipeline construction, the production of steel pipes for oil and gas transportation has reached enormous levels. Due to the unavoidable inhomogeneity of materials, steel pipes of the same grade can vary in quality and performance, exhibiting certain deviations. This poses certain safety hazards during pipeline construction, such as using lower-quality steel pipes in higher-risk areas. Therefore, combining quality control information from steel pipe production with the proper use of different quality pipes—using higher-quality pipes in key locations and lower-quality pipes in general areas—is a crucial issue that requires close attention on the production site.

[0003] In recent years, with the improvement of steel pipe quality inspection, on-site supervision and construction levels, the technical problems of electronic recording of steel pipe quality inspection data, statistical analysis of steel pipe quality deviations, and marking and traceability of the entire life cycle of steel pipes have been well solved in the pipeline layout problem during the construction of oil and gas pipelines.

[0004] Existing pipe selection and layout methods only select steel pipes of different wall thicknesses for different regions and grades, neglecting the selection of steel pipes with the same wall thickness for pipeline construction within the same region and grade. Furthermore, pipe layout focuses only on ease of construction, not safety, such as selecting steel pipes with different performance characteristics based on elevation differences. Therefore, this plan, based on summarizing the performance data of high-pressure, large-diameter gas pipeline steel pipes, summarizes the distribution patterns of quality performance and proposes pipe selection and layout measures for pipeline construction, focusing on solving practical on-site problems, exploring the potential of pipe materials, and improving pipeline reliability. This is of great significance for improving pipeline integrity management requirements and ensuring safe production of oil and gas pipelines. Summary of the Invention

[0005] The purpose of this invention is to provide a method, apparatus, equipment, and medium for selecting and laying pipelines for oil and gas pipelines, so as to solve the technical problem that the existing technology lacks a method for selecting and laying pipelines based on the performance of steel pipes and on-site risks.

[0006] To achieve the above objectives, the present invention employs the following technical solution: Firstly, a method for selecting and laying pipelines for oil and gas pipelines includes the following steps: S1. Obtain the performance data of the steel pipe and calculate the performance indicators of the steel pipe based on the obtained performance data; S2. Steel pipes are classified according to their performance indicators, and the performance grade is marked on the pipe body. The lowest performance grade of steel pipe is Grade I. S3. Obtain the typical risk factors of the pipeline area, score the typical risk factors of the pipeline area, obtain the typical risk factor score, and then calculate the typical risk score of the pipeline in the pipeline area based on the typical risk factor score. S4. Obtain the operating pressure and design pressure of the pipeline within the pipeline area, and score the pipeline pressure load risk value based on the operating pressure and design pressure of the pipeline within the pipeline area to obtain the pipeline pressure load risk score. S5. Calculate the overall risk score of the pipeline based on the typical risk score and the pressure load risk score of the pipeline, and obtain the risk level of the pipeline area based on the overall risk score of the pipeline. The minimum risk level of the pipeline area is Level I. S6. Generate a pipe selection and laying plan based on the risk level of the pipe laying area and the performance level of the steel pipe.

[0007] A further improvement of the present invention is that the performance indicators of the steel pipe include the ratio of the yield strength of the steel pipe to the minimum yield strength required by the material used in the steel pipe and the ratio of the Charpy impact energy of the steel pipe to the minimum Charpy impact energy required by the material used in the steel pipe. The ratio M of the yield strength of the steel pipe to the minimum yield strength required by the material used for the steel pipe: M—The ratio of the yield strength of the steel pipe to the minimum yield strength required by the material used for the steel pipe; σ s —Measured experimental value of yield strength of steel pipe; SMYS—Minimum yield strength specified for the material of the steel pipe sample; The ratio N of the Charpy impact energy of the steel pipe to the minimum Charpy impact energy required for the material used in the steel pipe: N—The ratio of the Charpy impact energy of the steel pipe to the minimum Charpy impact energy required by the material used in the steel pipe; K v —Measured Charpy impact energy of steel pipe samples; K v0 —The minimum Charpy impact energy is specified for the material of the steel pipe sample.

[0008] A further improvement of the present invention is that the steel pipe is classified according to the performance index of the steel pipe. The performance grade of the steel pipe is divided into three grades: I, II and III, from high to low. When 1≤M<1.08, the performance grade of the steel pipe is III. When 1.08≤M<1.15 and 1≤N<2, the steel pipe performance grade is III; When 1.08 ≤ M < 1.15 and N ≥ 2, the steel pipe performance grade is II; When M≥1.15 and 1≤N<2, the steel pipe performance grade is II; When M≥1.15 and N≥2, the performance grade of the steel pipe is I.

[0009] A further improvement of the present invention is that S3 specifically includes the following steps: S31. Obtain typical risk factors in the pipeline deployment area, including determining whether the pipeline deployment area is a high-consequence area, a geologically hazardous area, or a low point in an undulating terrain. S32. Scoring is based on the typical risk factors of the piped area. If the piped area is a high-consequence area, the high-consequence area score P1 is 1; if the piped area is not a high-consequence area, the high-consequence area score P1 is 0. If the area where the pipeline is laid is a geologically hazardous area, the score for geologically hazardous area P2 is 1; if the area where the pipeline is laid is not a geologically hazardous area, the score for geologically hazardous area P2 is 0. If the pipeline area is the low point of an undulating terrain, the score for the low point of the undulating terrain, P3, is 0.5; if the pipeline area is not the low point of an undulating terrain, the score for the low point of the undulating terrain, P3, is 0; if the pipeline area is a gas pipeline, the score for the low point of the undulating terrain, P3, is 0.5. S33. Calculate the typical risk score P of the pipeline based on the scores of high-consequence areas, geological disaster-prone areas, and low points in undulating terrain. 风 ; P 风 =P1+P2+P3.

[0010] A further improvement of this invention is that: when the operating pressure is ≥80% of the design pressure, the pipeline pressure load risk is P 压 It is 2; When the operating pressure is ≥50% and <80% of the design pressure, the pipeline pressure load risk is P. 压 =1; When the operating pressure is less than 50% of the design pressure, the pipeline pressure load risk is P. 压 It is 0.

[0011] A further improvement of this invention lies in: calculating the overall risk score P of the pipeline based on the typical risk score and the pressure load risk score of the pipeline. 总 ; Based on the overall pipeline risk score P 总 Delineate the risk levels of the pipe laying areas; Risk levels are categorized from highest to lowest as I, II, and III; When 0 < P 总 When the value is ≤1.5, the risk level of the piped area is III; When 1.5 < P 总 When the risk level is ≤3, the risk level of the piped area is II; When P 总When the value is greater than 3, the risk level of the area under management is I.

[0012] A further improvement of the present invention is that S6 specifically includes the following steps: S61. Before laying pipes, determine the performance grade of the steel pipes to be used in the pipe laying area based on the risk level of the pipe laying area. S62. When laying pipes, select steel pipes with the same performance grade as the risk grade of the pipe laying area. S63. Select the corresponding steel pipe according to the performance grade of the steel pipe.

[0013] Secondly, an oil and gas pipeline selection and layout device includes: Steel pipe performance index calculation module: acquires steel pipe performance data and calculates the performance index of the steel pipe based on the acquired steel pipe performance data; Steel pipe performance grade classification module: steel pipes are classified according to their performance indicators, and the performance grade is marked on the pipe body; Pipeline typical risk score calculation module for pipeline layout area: Obtain typical risk factors in the pipeline layout area, score the typical risk factors in the pipeline layout area, obtain the typical risk factor score, and then calculate the typical risk score of the pipeline in the pipeline layout area based on the typical risk factor score. Pipeline pressure load risk score calculation module: obtains the operating pressure and design pressure of the pipeline within the pipeline area, and scores the pipeline pressure load risk value based on the operating pressure and design pressure of the pipeline within the pipeline area to obtain the pipeline pressure load risk score. Pipeline area risk level classification module: Calculates the overall pipeline risk score based on the typical pipeline risk score and the pipeline pressure load risk score, and obtains the risk level of the pipeline area based on the overall pipeline risk score; Pipe selection and layout scheme generation module: Generates pipe selection and layout schemes based on the risk level of the pipe layout area and the performance level of the steel pipe.

[0014] Thirdly, a computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the oil and gas pipeline selection and laying method described in the first aspect.

[0015] Fourthly, a computer-readable storage medium storing a computer program that, when executed by a processor, implements the oil and gas pipeline selection and laying method described in the first aspect.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This invention combines the performance of steel pipes with environmental factors during pipe laying to better tap the potential of pipe materials and improve pipeline reliability and safety.

[0017] 2. The typical risk factors in the pipeline laying area of ​​this invention involve high-consequence areas, areas prone to geological disasters, and low points in undulating terrain. Various environmental factors are fully considered to avoid safety hazards. 3. When laying pipes, select steel pipes with the same performance grade as the risk grade of the pipe laying area. This avoids the waste caused by using high-performance pipes in low-risk areas and the safety risks caused by using low-performance pipes in high-risk areas. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This invention provides a process for selecting and laying pipelines for oil and gas pipelines. Figure 2 This is a structural block diagram of an oil and gas pipeline selection and laying device according to the present invention. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0020] The following detailed description is exemplary and intended to provide further detailed explanation of the invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this invention is for describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention.

[0021] Example 1 like Figure 1 As shown, a method for selecting and laying oil and gas pipelines includes the following steps: S1. Obtain the performance data of the steel pipe and calculate the performance indicators of the steel pipe based on the obtained performance data; S2. Steel pipes are classified according to their performance indicators, and the performance grade is marked on the pipe body. The lowest performance grade of steel pipe is Grade I. S3. Obtain the typical risk factors of the pipeline area, score the typical risk factors of the pipeline area, obtain the typical risk factor score, and then calculate the typical risk score of the pipeline in the pipeline area based on the typical risk factor score. S4. Obtain the operating pressure and design pressure of the pipeline within the pipeline area, and score the pipeline pressure load risk value based on the operating pressure and design pressure of the pipeline within the pipeline area to obtain the pipeline pressure load risk score. S5. Calculate the overall risk score of the pipeline based on the typical risk score and the pressure load risk score of the pipeline, and obtain the risk level of the pipeline area based on the overall risk score of the pipeline. The minimum risk level of the pipeline area is Level I. S6. Generate a pipe selection and laying plan based on the risk level of the pipe laying area and the performance level of the steel pipe.

[0022] Obtain steel pipe performance data during the steel pipe tubing stage; During the engineering design phase, risk classification is performed on pipe sections of the same regional grade. The ultimate goal is to use the higher-performing steel pipes of the same specification on the higher-risk pipe sections of the same regional grade.

[0023] The selection of pipes and the marking of performance grades at the steel pipe manufacturing stage are provided by the steel pipe factory. The performance indicators of steel pipes include the ratio of the yield strength of the steel pipe to the minimum yield strength required by the material used in the steel pipe and the ratio of the Charpy impact energy of the steel pipe to the minimum Charpy impact energy required by the material used in the steel pipe. The ratio M of the yield strength of the steel pipe to the minimum yield strength required by the material used for the steel pipe: M—The ratio of the yield strength of the steel pipe to the minimum yield strength required by the material used for the steel pipe; σ s —Measured experimental value of yield strength of steel pipe; SMYS—Minimum yield strength specified for the material of the steel pipe sample; The ratio N of the Charpy impact energy of the steel pipe to the minimum Charpy impact energy required for the material used in the steel pipe: N—The ratio of the Charpy impact energy of the steel pipe to the minimum Charpy impact energy required by the material used in the steel pipe; K v —Measured Charpy impact energy of steel pipe samples; K v0 —The minimum Charpy impact energy is specified for the material of the steel pipe sample.

[0024] Steel pipes that have undergone repair welding or rework and passed inspection are classified as Grade III; Grade II steel pipes with factory-tested welds are classified as Grade II steel pipes, with the highest performance grade being Grade II. The performance grade of the steel pipe should be indicated after the pipe number, using bold uppercase Latin letters I, II, and III.

[0025] The performance grades of steel pipes are classified as shown in Table 1. Table 1. Classification of Steel Pipe Performance Grades S3 specifically includes the following steps: S31. Obtain typical risk factors in the pipeline deployment area, including determining whether the pipeline deployment area is a high-consequence area, a geologically hazardous area, or a low point in an undulating terrain. S32. Scoring is based on the typical risk factors of the piped area. If the piped area is a high-consequence area, the high-consequence area score P1 is 1; if the piped area is not a high-consequence area, the high-consequence area score P1 is 0. If the area where the pipeline is laid is a geologically hazardous area, the score for geologically hazardous area P2 is 1; if the area where the pipeline is laid is not a geologically hazardous area, the score for geologically hazardous area P2 is 0. If the pipeline area is the low point of an undulating terrain, the score for the low point of the undulating terrain, P3, is 0.5; if the pipeline area is not the low point of an undulating terrain, the score for the low point of the undulating terrain, P3, is 0; if the pipeline area is a gas pipeline, the score for the low point of the undulating terrain, P3, is 0.5. S33. Calculate the typical risk score P of the pipeline based on the scores of high-consequence areas, geological disaster-prone areas, and low points in undulating terrain. 风 ; P 风 =P1+P2+P3.

[0026] On-site pipeline layout requirements: During the engineering design phase, a risk ranking should be provided for different locations within the same region's pipeline section, categorized into levels I, II, and III from highest to lowest risk. Pipeline risk mainly comprises two parts: typical pipeline risk and pipeline pressure load risk.

[0027] On the one hand, the typical risk assessment criteria for pipelines of the same grade in the same region include whether they are located in high-consequence areas, areas prone to geological disasters, or low points in undulating terrain. The risk level assessment adopts a semi-quantitative method, as shown in Table 2.

[0028] Table 2 Risk Level Scoring Table High-consequence areas are determined according to Q / SY 1180.2, and geological hazard-prone areas are determined according to the results of geological surveys.

[0029] For the same pipeline, pressure load risk is classified into high load, medium load, and low load. High load is defined as operating pressure ≥ 80% of design pressure, medium load as operating pressure ≥ 50% and < 80% of design pressure, and low load as operating pressure < 50% of design pressure. A semi-quantitative method is used to determine the risk level of the pipeline area, and the criteria are shown in Table 3.

[0030] Table 3 Pressure Load Risk Level Scoring Table The overall risk score P of the pipeline is calculated based on the typical risk score and the pressure load risk score of the pipeline. 总 ; ; Based on the overall pipeline risk score P 总 Delineate the risk levels of the pipe laying areas; The risk level classification method is shown in Table 4, which is divided into levels I, II, and III from high to low.

[0031] Table 4 Risk Level Classification Table S6 specifically includes the following steps: S61. Before laying pipes, determine the performance grade of the steel pipes to be used in the pipe laying area based on the risk level of the pipe laying area. S62. When laying pipes, select steel pipes with the same performance grade as the risk grade of the pipe laying area. S63. Select the corresponding steel pipe according to the performance grade of the steel pipe.

[0032] Example 2 like Figure 2 As shown, an oil and gas pipeline selection and laying device includes: Steel pipe performance index calculation module: acquires steel pipe performance data and calculates the performance index of the steel pipe based on the acquired steel pipe performance data; Steel pipe performance grade classification module: steel pipes are classified according to their performance indicators, and the performance grade is marked on the pipe body; Pipeline typical risk score calculation module for pipeline layout area: Obtain typical risk factors in the pipeline layout area, score the typical risk factors in the pipeline layout area, obtain the typical risk factor score, and then calculate the typical risk score of the pipeline in the pipeline layout area based on the typical risk factor score. Pipeline pressure load risk score calculation module: obtains the operating pressure and design pressure of the pipeline within the pipeline area, and scores the pipeline pressure load risk value based on the operating pressure and design pressure of the pipeline within the pipeline area to obtain the pipeline pressure load risk score. Pipeline area risk level classification module: Calculates the overall pipeline risk score based on the typical pipeline risk score and the pipeline pressure load risk score, and obtains the risk level of the pipeline area based on the overall pipeline risk score; Pipe selection and layout scheme generation module: Generates pipe selection and layout schemes based on the risk level of the pipe layout area and the performance level of the steel pipe.

[0033] Example 3 A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the oil and gas pipeline selection and layout method described in Embodiment 1. Example 4 A computer-readable storage medium storing a computer program, characterized in that, when executed by a processor, the computer program implements the oil and gas pipeline selection and layout method described in Embodiment 1.

[0034] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

[0035] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0036] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0037] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0038] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for selecting and laying pipelines for oil and gas pipelines, characterized in that, Includes the following steps: S1. Obtain the performance data of the steel pipe and calculate the performance indicators of the steel pipe based on the obtained performance data; S2. Classify the steel pipes according to their performance indicators and mark the performance grade on the pipe body. S3. Obtain the typical risk factors of the pipeline area, score the typical risk factors of the pipeline area, obtain the typical risk factor score, and then calculate the typical risk score of the pipeline in the pipeline area based on the typical risk factor score. S4. Obtain the operating pressure and design pressure of the pipeline within the pipeline area, and score the pipeline pressure load risk value based on the operating pressure and design pressure of the pipeline within the pipeline area to obtain the pipeline pressure load risk score. S5. Calculate the overall risk score of the pipeline based on the typical risk score and the pressure load risk score of the pipeline, and obtain the risk level of the pipeline area based on the overall risk score of the pipeline. S6. Generate a pipe selection and laying plan based on the risk level of the pipe laying area and the performance level of the steel pipe. The performance indicators of the steel pipe include the ratio of the yield strength of the steel pipe to the minimum yield strength required by the material used in the steel pipe, and the ratio of the Charpy impact energy of the steel pipe to the minimum Charpy impact energy required by the material used in the steel pipe. The ratio M of the yield strength of the steel pipe to the minimum required yield strength of the steel pipe: —The ratio of the yield strength of the steel pipe to the minimum yield strength required by the material used in the steel pipe; —Measured experimental value of yield strength of steel pipe; —The minimum yield strength is specified for the material of the steel pipe sample; The ratio N of the Charpy impact energy of the steel pipe to the minimum Charpy impact energy required by the material used in the steel pipe: —The ratio of the Charpy impact energy of the steel pipe to the minimum Charpy impact energy required by the material used in the steel pipe; —Measured Charpy impact energy of steel pipe samples; —The minimum Charpy impact energy specified in the steel pipe sample material; Steel pipes are classified according to their performance indicators. The performance grades of steel pipes are divided into three levels: I, II, and III, from high to low performance. When 1 ≤ M < 1.08, the performance grade of the steel pipe is III; When 1.08≤M<1.15 and 1≤N<2, the steel pipe performance grade is III; When 1.08 ≤ M < 1.15 and N ≥ 2, the steel pipe performance grade is II; When M≥1.15 and 1≤N<2, the steel pipe performance grade is II; When M≥1.15 and N≥2, the performance grade of the steel pipe is I; S3 specifically includes the following steps: S31. Obtain typical risk factors in the pipeline deployment area, including determining whether the pipeline deployment area is a high-consequence area, a geologically hazardous area, or a low point in an undulating terrain. S32. Scoring is based on the typical risk factors of the piped area. If the piped area is a high-consequence area, the high-consequence area score P1 is 1; if the piped area is not a high-consequence area, the high-consequence area score P1 is 0. If the area where the pipeline is laid is a geologically hazardous area, the score for geologically hazardous area P2 is 1; if the area where the pipeline is laid is not a geologically hazardous area, the score for geologically hazardous area P2 is 0. If the pipeline area is the low point of an undulating terrain, the score for the low point of the undulating terrain, P3, is 0.5; if the pipeline area is not the low point of an undulating terrain, the score for the low point of the undulating terrain, P3, is 0; if the pipeline area is a gas pipeline, the score for the low point of the undulating terrain, P3, is 0.

5. S33. Calculate the typical risk score P of the pipeline based on the scores of high-consequence areas, geological disaster-prone areas, and low points in undulating terrain. 风 ; P 风 =P1+P2+P3。 2. The method for selecting and laying pipelines for oil and gas pipelines according to claim 1, characterized in that, In S4, the pipeline pressure load risk value is scored based on the operating pressure and design pressure of the pipeline within the pipeline area. When the operating pressure is ≥80% of the design pressure, the pipeline pressure load risk score is P. 压 It is 2; When the operating pressure is ≥50% and <80% of the design pressure, the pipeline pressure load risk is P. 压 =1; When the operating pressure is less than 50% of the design pressure, the pipeline pressure load risk is P. 压 It is 0.

3. The method for selecting and laying pipelines for oil and gas pipelines according to claim 2, characterized in that, The overall risk score P of the pipeline is calculated based on the typical risk score and the pressure load risk score of the pipeline. 总 ; ； Based on the overall pipeline risk score P 总 Delineate the risk levels of the pipe laying areas; Risk levels are categorized from highest to lowest as I, II, and III; when At that time, the risk level of the area under management was III; when At that time, the risk level of the area under management was II; when At that time, the risk level of the area under management was I.

4. The method for selecting and laying pipelines for oil and gas pipelines according to claim 1, characterized in that, S6 specifically includes the following steps: S61. Before laying pipes, determine the performance grade of the steel pipes to be used in the pipe laying area based on the risk level of the pipe laying area. S62. When laying pipes, select steel pipes with the same performance grade as the risk grade of the pipe laying area. S63. Select the corresponding steel pipe according to the performance grade of the steel pipe.

5. A pipe selection and laying device for oil and gas pipelines, used to implement the pipe selection and laying method for oil and gas pipelines as described in any one of claims 1 to 4, characterized in that, include: Steel pipe performance index calculation module: acquires steel pipe performance data and calculates the performance index of the steel pipe based on the acquired steel pipe performance data; Steel pipe performance grade classification module: steel pipes are classified according to their performance indicators, and the performance grade is marked on the pipe body; Pipeline typical risk score calculation module for pipeline layout area: Obtain typical risk factors in the pipeline layout area, score the typical risk factors in the pipeline layout area, obtain the typical risk factor score, and then calculate the typical risk score of the pipeline in the pipeline layout area based on the typical risk factor score. Pipeline pressure load risk score calculation module: obtains the operating pressure and design pressure of the pipeline within the pipeline area, and scores the pipeline pressure load risk value based on the operating pressure and design pressure of the pipeline within the pipeline area to obtain the pipeline pressure load risk score. Pipeline area risk level classification module: Calculates the overall pipeline risk score based on the typical pipeline risk score and the pipeline pressure load risk score, and obtains the risk level of the pipeline area based on the overall pipeline risk score; Pipe selection and layout scheme generation module: Generates pipe selection and layout schemes based on the risk level of the pipe layout area and the performance level of the steel pipe.

6. A computer 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 computer program, it implements the method for selecting and laying oil and gas pipelines as described in any one of claims 1-4.

7. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the method for selecting and laying oil and gas pipelines according to any one of claims 1-4.

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