Results 11 to 20 of about 993 (264)

Submarine pipeline stability under currents and waves action

open access: yesRUDN Journal of Engineering Research, 2021
Pipelines are widely used in recent decades because their eco-friendliness, safety and profitability of transportation. Their length can be more than hundreds and thousands of kilometers. Submarine pipelines got wide distribution. Their constructing must
Konstantine P. Mordvintsev   +2 more
doaj   +1 more source

Wax deposition law and OLGA-Based prediction method for multiphase flow in submarine pipelines

open access: yesPetroleum, 2022
In this study, the effects of wax deposition on submarine multiphase pipelines are investigated. In order to understand the mechanism of wax deposition in submarine multiphase pipelines, a wax deposition model in a submarine pipeline was established ...
Ying Xie, Jin Meng, Diwen Chen
doaj   +1 more source

Development and Experiment of Clamp Type Submarine Cable Inspection Robot

open access: yesMachines, 2023
Relying on the research and development project of an auxiliary device for a submarine cable to cross a steel pipeline, with regard to a long-distance submarine cable crossing a pipeline, combined with a pipe-climbing robot and the laying of the ...
Zhuo Wang, Yufan Wang, Bo Zhang
doaj   +1 more source

Types of submarine pipeline boundary conditions and implications for pipeline walking behaviour [PDF]

open access: yesJournal of Hebei University of Science and Technology
The ends of deep-sea submarine pipelines are usually connected to wellheads, suspended chain line risers, pipeline end manifolds, etc. , and the boundary conditions at the end of the pipelines are complicated.
Chunhui ZHANG   +6 more
doaj   +1 more source

Prediction of submarine pipeline corrosion based on parameter optimized GM-Markov model

open access: yesYou-qi chuyun, 2020
To avoid accidents such as perforation leakage caused by submarine pipeline corrosion, and to timely maintain and protect submarine pipelines, the prediction method for submarine pipeline residual life based on parameter-optimized GM-Markov model was ...
Xinsheng ZHANG   +3 more
doaj   +1 more source

The JCOE/JCOC manufacturing process and collapse resistance of submarine pipeline

open access: yesAdvances in Mechanical Engineering, 2023
Submarine pipeline is an important part of deep-sea and ultra-deep-sea oil and gas development. In the cold forming process of longitudinal submerged arc welded (LSAW) pipe, the JCO manufacturing process is one of the key forming technologies for ...
Deping Peng   +5 more
doaj   +1 more source

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

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