Results 31 to 40 of about 472,437 (333)

Prediction on running time of pigs in submarine pipelines

open access: yesYou-qi chuyun, 2022
The running time of pigs in submarine pipelines is an important reference for pig receiving operation. In order to identify the factors that influence the running time of pigs, the correlation degree of pipeline mileage, pipeline inlet/outlet pressure ...
Yang CAO   +3 more
doaj   +1 more source

Research on Magnetic Memory Detection of Submarine Pipeline Suspended Damage Section

open access: yesShiyou jixie, 2021
Submarine pipelines are an important means of transportation to ensure the continuous development of offshore oil and gas fields. Submarine pipelines are susceptible to corrosion and external forces that cause defects and lead to failure during ...
Zhao Haixu, Fan Jianchun
doaj  

Evolution of structural response to post-trenching of free-spanning submarine pipeline

open access: yesYou-qi chuyun, 2022
The free-spanning submarine pipeline has complex interaction with the surrounding soil during post-trenching, but its structural response mechanism is still not verified by physical simulation. Herein, a submarine pipeline model was designed based on the
Xudu LIU   +4 more
doaj   +1 more source

Subsea Pipelines

open access: yesJournal of Marine Science and Engineering, 2023
A subsea pipeline (also known as an offshore pipeline or submarine pipeline) is a pipeline that is laid on the seabed or inside a specially constructed trench [...]
Bai-Qiao Chen, C. Guedes Soares
doaj   +1 more source

External Anti-Corrosive Technology for Submarine Pipeline Nodes and Its Effect on Cathodic Protection [PDF]

open access: yesCailiao Baohu, 2023
The anti-corrosive failure of on-site welding points (nodes) of submarine pipelines is the main factor affecting the external anticorrosive failure of pipelines.The quality of anti-corrosive coatings directly affects the safe operation of the entire ...
ZHU Jiaxiang, JIA Guangmeng, LI Ye, YANG Chang, LIU Ruikai, FU Xianqiao, LYUFU Feiyang
doaj   +1 more source

Seismic Dynamics of Pipeline Buried in Dense Seabed Foundation

open access: yesJournal of Marine Science and Engineering, 2019
Submarine pipeline is a type of important infrastructure in petroleum industry used for transporting crude oil or natural gas. However, submarine pipelines constructed in high seismic intensity zones are vulnerable of attacks from seismic waves.
Yan Zhang   +3 more
doaj   +1 more source

Metal magnetic memory quantitative inversion model based on IPSO-GRU algorithm for detecting submarine pipeline defect

open access: yes工程科学学报, 2022
As submarine oil and gas are exploited further, the safety of submarine pipelines is receiving increasing attention. Due to the complex operating environment and harsh working environment, submarine pipelines are vulnerable to damage; this leads to ...
Hai-yan XING   +5 more
doaj   +1 more source

Correlation between Microstructure and Mechanical Properties of Welded Joint of X70 Submarine Pipeline Steel with Heavy Wall Thickness

open access: yesMetals, 2022
This paper aims to study the relationship between the microstructure and the mechanical properties of X70 submarine pipeline steel with 40.5 mm thickness.
Yifan Dong   +4 more
semanticscholar   +1 more source

Investigations on the Effectiveness of Protection Methods for a Submarine Pipeline Exposed to the Impact of a Falling Anchor

open access: yesJournal of Marine Science and Engineering, 2022
The occurrence of a buried submarine pipeline crossing a channel becoming damaged by the impact of a falling anchor is becoming more common. It is important to analyze the dynamic response of pipelines exposed to such impact and develop effective ...
Ciheng Zhang   +4 more
semanticscholar   +1 more source

Design and Development of Submarine Cable and Pipeline Information Management System in South China Sea Based on WebGIS

open access: yesHaiyang Kaifa yu guanli, 2022
In order to promote the high-quality development of submarine cable and pipeline engineering construction in China, this paper designed and developed the submarine cable and pipeline information management system in the South China Sea based on relevant ...
Haiying ZHOU   +4 more
doaj  

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