Results 21 to 30 of about 1,198,264 (91)

Optimization of K‐Shaped Metal Sealing Ring for Subsea Tubing Hanger Based on Response Surface Method

open access: yesModelling and Simulation in Engineering, Volume 2025, Issue 1, 2025.
The K‐shaped metal sealing ring of the subsea tubing hanger is a crucial sealing component ensuring wellhead sealing. Optimizing its structure can enhance the sealing performance of the tubing hanger and improve the reliability of subsea wellhead equipment.
Huan Xie   +5 more
wiley   +1 more source

Study on Sealing Reliability of Deep-sea Underwater Gate Valve and Actuator

open access: yesShiyou jixie, 2023
Deep-sea underwater gate valve and actuator are indispensable devices in subsea production system such as subsea Christmas tree, flow line and subsea manifold system.Their sealing reliability is crucial to their service performance and life, and is also ...
Wan Chunyan   +5 more
doaj  

Type Selection and Function Design of Subsea Christmas Tree in Lingshui 17-2 Gas Field

open access: yesShiyou jixie, 2018
Subsea Christmas tree is an important equipment for offshore oil and gas development, which is widely used in the development of oil and gas fields. The proper selection of subsea Christmas tree system is of great significance in reducing the initial ...
Jiang Donglei   +5 more
doaj  

Analysis and Optimization of Influencing Factors on Sealing Performance of Subsea Wellhead Connector

open access: yesShiyou jixie, 2022
As a key equipment to connect high-pressure wellhead with subsea Christmas tree and prevent the leakage of high-temperature and high-pressure fluid in the well, the subsea connector is faced with extremely severe load.
Liu Shujie   +6 more
doaj  

Study on Erosion Model of AISI 8630 Material for Subsea Christmas Tree

open access: yesShiyou jixie, 2020
The solid particles in the offshore oil and gas production will cause erosive wear of the subsea Christmas tree, which will reduce its pressure bearing capacity.
Rong Xin, Zhu Hongwu, Chu Bingchuan
doaj  

Design of Production Gate Valve and Actuator for Subsea All-electric Christmas Tree

open access: yesShiyou jixie, 2018
Hydraulic controlled oil production systems have disadvantages such as high cost, difficult high pressure control oil transmission and oil leakage. To address the issue, the subsea all-electric Christmas tree gate valve and actuator are designed.
Xiao Yin, Wu Di, Xiang Chao, Li Shen
doaj  

Christmas tree shipping guide

open access: yes, 2020
Title from PDF cover."This guide provides information on the requirements to ship cut Christmas trees to states and territories of the United States, and to selected foreign countries.

core  

Development Status of Subsea Christmas Tree

open access: yesShiyou jixie, 2016
The key to the development of subsea tree is whether it can meet the requirement by the relevant standards and specifications in pressure circulation test, high and low temperature circulation test, load circulation test and external high pressure test ...
Wang Yu   +6 more
doaj  

A comprehensive risk assessment method for Christmas tree combined with a multi source information fusion algorithm and an improved HAZOP method.

open access: yesPLoS ONE
The Christmas tree faces significant safety risks during installation and requires extremely high reliability during operation. In this study, a comprehensive risk assessment method combined GA-BP neural network and improved HAZOP method is established ...
Qiong Wang, Huimin Li, Guanlong Ren
doaj   +1 more source

Structural Optimization and Experimental Investigation of S-Seal for Subsea Christmas Trees

open access: yesShiyou jixie, 2023
The S-seal,a non-metallic seal for subsea Christmas trees,is one of the key components for safe subsea production.In this research,the structure and sealing mechanism of the S-seal are investigated and the structural parameters are optimized.The laws of ...
Zhang Chong   +5 more
doaj  

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