Results 111 to 120 of about 5,546 (148)

A deep residual shrinkage network based on multi-scale attention module for subsea Christmas tree valve leakage detection

Measurement, 2022
Guijie Liu, Yunqing Chen, Xiulong Zhang, Weixiong Jiang, Yingchun Xie, Xiaojie Tian, Dingxin Leng, Zhixiong Li   +7 more
openaire   +2 more sources

A Preview of the Subsea Christmas Tree Installation Procedure

Chemistry and Technology of Fuels and Oils
Xinjing Xu, Hainan Longpan, Jinfeng Ji, Hainan Longpan, Li Li   +4 more
openaire   +2 more sources

Correction to: A Preview of the Subsea Christmas Tree Installation Procedure

Chemistry and Technology of Fuels and Oils
Xinjing Xu, Jinfeng Ji, Li Li, Xiang Xu
openaire   +2 more sources

A synergistic maintenance optimization method driven by integrated-resilience: Subsea Christmas tree as a case

Ocean Engineering
Yanping Zhang, Baoping Cai, Chuntan Gao, Chenyushu Wang, Zhaoyi Pan, Zhen Qin   +5 more
openaire   +2 more sources

Application of Failure Mode, Effects and Criticality Analysis (FMECA) to Prioritize the Equipment And Components of the Subsea Christmas Tree System

Proceedings of the 31st European Safety and Reliability Conference (ESREL 2021), 2021
Fernanda Marques de Moura, Marcelo Ramos Martins, Adriana Miralles Schleder   +2 more
openaire   +2 more sources

Comprehensive benchmark analysis of the subsea christmas tree standard system based on the AHP-entropy weight fuzzy evaluation method

Third International Conference on Advanced Materials and Equipment Manufacturing (AMEM 2024)
As offshore oil and gas development progresses toward high-pressure, high-temperature, and increasingly complex working conditions, the improvement of standard systems for subsea Christmas trees and wellhead equipment becomes critical to ensuring ...
Xing Jin, Yingjie Su, Hao Fan, Yongli Hu
openaire   +2 more sources

A New Technique to Solve Gas Hydrate Problems in Subsea Christmas Trees

SPE Production & Facilities, 2004
Summary The paper is aimed at describing the series of actions taken to re-enter a well, the (wet) Christmas-tree cap of which was clogged by solid hydrate and therefore could not be released by means of a regular releasing tool.
L. C. C. Marques, C. A. Pedroso, L. F. Neumann   +2 more
openaire   +2 more sources

Remaining Useful Life Prediction Method for Multi-Component System Considering Maintenance: Subsea Christmas Tree System as A Case Study

China Ocean Engineering
Qi-bing Wu, Bao-ping Cai, Hong-yan Fan, Guan-nan Wang, Xi Rao, Weifeng Ge, Xiao-yan Shao, Yong-hong Liu   +7 more
openaire   +2 more sources

THROUGH BORE SUBSEA CHRISTMAS TREES

Proceedings of Offshore Europe, 1985
Abstract The workovers of subsea completed wells are expensive and time consuming as even the most routine tasks must be carried out by a semi-submersible. This paper describes the economic, safety and operational advantages which led to the development and successful first installation of ‘through bore’ subsea production trees.
D S Huber, G F C Simmers, C S Johnson
openaire   +1 more source

Reliability assessment of competing failure processes with correlated multi-performance characteristics: A case study of subsea Christmas tree hydraulic power unit

Ocean Engineering
Xuewei Shi, Zengkai Liu, Zhi Guo, Changlei Dong, Zhonghao Han, Qi Chen, Baoping Cai, Yonghong Liu   +7 more
openaire   +2 more sources