Results 121 to 130 of about 5,546 (148)
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Research on rapid measurement methods for the relative position of Christmas tree pipelines under subsea limited space conditions

Ocean Engineering
Peng Yi   +7 more
openaire   +2 more sources

An agent-based dynamic reliability modeling method for multistate systems considering fault propagation: A case study on subsea Christmas trees

Process Safety and Environmental Protection, 2022
Abstract The fault propagation of multistate systems (MSSs) with various operational modes is a critical factor affecting the reliability and safety of systems. However, traditional methods have difficulty describing the influence of function transitions and multiple faults of components on fault propagation, and are inapplicable for accurately ...
Xing Guo   +6 more
openaire   +1 more source

Mechanical Stability Evaluation Method and Application for Subsea Christmas Tree-Wellhead Systems Considering Seismic and Corrosion Effects

Processes
To address the failure risks associated with long-term service of subsea Christmas tree-wellhead systems under the complex marine environment of the South China Sea, a multi-factor coupled mechanical analysis method is proposed to evaluate the system’s ...
Xuezhan Zhao   +9 more
semanticscholar   +1 more source

Wet Christmas Tree Interface for Depressurizing Underwater Flowlines

Day 2 Wed, October 30, 2019, 2019
Oil and gas flowlines plugging due to hydrate formation is one of the main reasons for production losses in deep water production systems. Therefore, several hydrate prevention and mitigation techniques have been constantly developed and applied by ...
Raphael Veloso Beppler   +6 more
semanticscholar   +1 more source

A Hydrodynamic Model of the Subsea Christmas Trees in the Drill Pipes Retrieval Process at 2000-Meter Water Depth

Processes
Subsea Christmas trees serve as key technical equipment for subsea oil and gas development, as they regulate the flow of oil and gas at subsea wellheads.
Xudong Wu   +6 more
semanticscholar   +1 more source

Wet Christmas Tree and Control System Standardization and Interchangeability - More Than 10 years of Lessons Learned

Day 3 Wed, May 08, 2024
The scope of this work is to present the main results obtained with the interfaces standardization on Wet Christmas Trees (WCTs) and its Electrohydraulic Multiplex (EHMUX) Subsea Control Systems in pre-salt scenario, in Brazil, which completes more ...
R. V. Beppler   +5 more
semanticscholar   +1 more source

Sensitive protein alignments at tree-of-life scale using DIAMOND

Nature Methods, 2021
Benjamin Buchfink   +2 more
exaly  

Study on the Sealing Performance of the K-Type Metal Sealing Ring of the Subsea Christmas Tree

Petroleum Science
Yu-Fang Li   +5 more
semanticscholar   +1 more source

Microbial diversity in extreme environments

Nature Reviews Microbiology, 2021
Wen-Sheng Shu, Li-Nan Huang
exaly  

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