Results 51 to 60 of about 115 (92)

Reliability assessment model for multiple stress factors accelerated degradation test using a Wiener process with random effects. [PDF]

PLoS One
Huang Q, Tang J, Feng X.
europepmc   +1 more source

Study on the sealing performance of the K-type metal sealing ring of the subsea Christmas tree

Petroleum Science
Yu-Fang Li, Shi-Bin Ye, Ying-Ying Wang, Ze-Qing Lin, Nan Li, Bao-Fu Wang   +5 more
openaire   +1 more source

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Dynamic Bayesian network-based reliability and safety assessment of the subsea Christmas tree

Chemical Engineering Research and Design, 2021
Abstract The major functions of the subsea Christmas tree include production management, wellhead pressure control, chemical reagent injection, and oil/gas production safety control. It is necessary to investigate the reliability and safety of the tree for safe and stable operation of subsea production systems.
Feihong Yun, Peng Jia, Xiangyu Wang
exaly   +2 more sources

Reliability analysis of subsea Christmas tree structure based on fuzzy fault tree

International Conference on Mechanical Design and Simulation (MDS 2022), 2022
Peng Jia, Feng Yin
exaly   +2 more sources

Reliability Analysis Method of a Control System for Subsea All-Electric Christmas Tree

Journal of Marine Science and Application, 2021
The subsea all-electric Christmas tree (XT) is a key equipment in subsea production systems. Once it fails, the marine environment will be seriously polluted. Therefore, strict reliability analysis and measures to improve reliability must be performed before a subsea all-electric XT is launched; such measures are crucial to subsea safe production.
Peng Liu
exaly   +2 more sources

Testing Technology of Subsea Christmas Tree

Advanced Materials Research, 2012
As an important part of the deep-water oil and gas field, the development process of subsea Christmas tree includes design, manufacture and test. The testing technology of subsea Christmas tree supplies reliability and security for the use of subsea Christmas tree, and it`s an important content of the localization of subsea Christmas tree.
Meng Lan Duan, He Tong
exaly   +2 more sources

A dynamic Bayesian network based methodology for fault diagnosis of subsea Christmas tree

Applied Ocean Research, 2020
Abstract A subsea Christmas tree (XT) is an extremely important part of a subsea production system. The safety-fault of subsea XT indicates that no major safety incidents are difficult to diagnose. To identify the faulty components and distinguishing the fault types, including the blocking, leakage, and especially safety-fault, we present a dynamic ...
Peng Liu, Yonghong Liu, Baoping Cai
exaly   +2 more sources

Remaining useful life re-prediction methodology based on Wiener process: Subsea Christmas tree system as a case study

Computers and Industrial Engineering, 2021
Abstract With the continuous improvement of the complexity and comprehensive level of the system, its reliability becomes more and more important. The remaining useful life (RUL) estimation method using the degradation model with random effect to describe the degradation process of the system has been widely used such as Wiener process.
Zengkai Liu, Yonghong Liu, Baoping Cai   +2 more
exaly   +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