New type of high-strength flexible cover plate to prevent engineering failure in oil and gas pipeline engineering

Wang, Dongyuan; Tan, Qiuxia; Jianyang,

doi:10.1016/j.engfailanal.2022.106477

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…For hydrogen-blended natural gas pipelines, the critical hydrogen concentration that triggers hydrogen-induced cracking in welds is closely related to the local stress state. When local stresses are highly concentrated, the critical hydrogen concentration for crack initiation decreases [60][61][62][63][64]. Conversely, as stress decreases, the critical hydrogen concentration for crack initiation increases.…”

Section: Mechanical Damage Mechanism Of Hydrogen Damage Superposition...mentioning

confidence: 99%

Research Progress and Prospects on Hydrogen Damage in Welds of Hydrogen-Blended Natural Gas Pipelines

Ban,

Yan,

Song

et al. 2023

Processes

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Hydrogen energy represents a crucial pathway towards achieving carbon neutrality and is a pivotal facet of future strategic emerging industries. The safe and efficient transportation of hydrogen is a key link in the entire chain development of the hydrogen energy industry’s “production, storage, and transportation”. Mixing hydrogen into natural gas pipelines for transportation is the potential best way to achieve large-scale, long-distance, safe, and efficient hydrogen transportation. Welds are identified as the vulnerable points in natural gas pipelines, and compatibility between hydrogen-doped natural gas and existing pipeline welds is a critical technical challenge that affects the global-scale transportation of hydrogen energy. Therefore, this article systematically discusses the construction and weld characteristics of hydrogen-doped natural gas pipelines, the research status of hydrogen damage mechanism, and mechanical property strengthening methods of hydrogen-doped natural gas pipeline welds, and points out the future development direction of hydrogen damage mechanism research in hydrogen-doped natural gas pipeline welds. The research results show that: ① Currently, there is a need for comprehensive research on the degradation of mechanical properties in welds made from typical pipe materials on a global scale. It is imperative to systematically elucidate the mechanism of mechanical property degradation due to conventional and hydrogen-induced damage in welds of high-pressure hydrogen-doped natural gas pipelines worldwide. ② The deterioration of mechanical properties in welds of hydrogen-doped natural gas pipelines is influenced by various components, including hydrogen, carbon dioxide, and nitrogen. It is necessary to reveal the mechanism of mechanical property deterioration of pipeline welds under the joint participation of multiple damage mechanisms under multi-component gas conditions. ③ Establishing a fundamental database of mechanical properties for typical pipeline steel materials under hydrogen-doped natural gas conditions globally is imperative, to form a method for strengthening the mechanical properties of typical high-pressure hydrogen-doped natural gas pipeline welds. ④ It is essential to promptly develop relevant standards for hydrogen blending transportation, welding technology, as well as weld evaluation, testing, and repair procedures for natural gas pipelines.

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Section: Mechanical Damage Mechanism Of Hydrogen Damage Superposition...mentioning

confidence: 99%

Research Progress and Prospects on Hydrogen Damage in Welds of Hydrogen-Blended Natural Gas Pipelines

Ban,

Yan,

Song

et al. 2023

Processes

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“…The safe operation of oil and gas pipelines is related to the economic development and property safety of the country, and the development of reasonable and effective management measures not only minimizes the frequency of pipeline replacement but also reduces the incidence of oil and gas pipeline accidents and ensures that the oil and gas pipelines can operate smoothly and safely. Literature [9] believes that the current oil and gas pipeline entrance using reinforced concrete for protection has the disadvantages of high cost and long construction time, and examples verify it. The results indicate that reinforced concrete covers are not effective in assisting machine operators in identifying obstacles, and the cover's impact resistance is weak.…”

Section: ) Oil and Gas Pipelinesmentioning

confidence: 99%

Log specification and intelligent analysis method based on oil and gas pipeline SCADA system

Sun,

Li,

Zhang

et al. 2023

Applied Mathematics and Nonlinear Sciences

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As the control center of the natural gas long-distance pipeline network, the SCADA system shoulders the important tasks of data collection and monitoring of the whole long-distance pipeline, gas transmission management, production scheduling, operation and maintenance coordination in production, and plays a very important role in the whole oil and gas pipeline. In this paper, firstly, the SCADA system for localized long-distance pipelines is explained in detail, including its basic structure and special solutions to problems. Secondly, the AdaBoost algorithm, which combines the MapReduce parallel computing framework, is introduced to collect and process data from the operation logs of the SCADA system and normalize the logs. Finally, to test the interaction between the improved AdaBoost algorithm and the SCADA system, a system test was conducted. The results show that the average latency of scheduling the logs of the SCADA system by AdaBoost algorithm with MapReduce parallel computing framework is only 39.82ms, the average processing speed of the log normalization file data under the multi-threaded mode of the system reaches 86.51GB/s, and the effective accuracy of the fault diagnosis is as high as 90.36%. This shows that the oil and gas pipeline SCADA system interacting with data visualization technology can process operation logs more quickly and can carry out real-time intelligent supervision of the working status and operation parameters of the whole auxiliary system, promoting the intelligent development of the oil and gas pipeline SCADA system.

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New type of high-strength flexible cover plate to prevent engineering failure in oil and gas pipeline engineering

Cited by 2 publications

References 16 publications

Research Progress and Prospects on Hydrogen Damage in Welds of Hydrogen-Blended Natural Gas Pipelines

Research Progress and Prospects on Hydrogen Damage in Welds of Hydrogen-Blended Natural Gas Pipelines

Log specification and intelligent analysis method based on oil and gas pipeline SCADA system

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