Results 11 to 20 of about 32,660 (169)

Exploration and practice of key equipment localization in oil and gaspipelines

open access: yesYou-qi chuyun, 2021
The key equipment of oil and gas pipelines is the important treasure of a country because they are related to national energy security. For many years, the key equipment has been imported, which become a bottleneck restricting the high-quality ...
Xiliang YANG, Dong ZHANG, Yongjun CAI
doaj   +1 more source

Treatment to oil injection failure of open-circuit pilot valve of Shafer pneumatic-hydraulic actuator

open access: yesYou-qi chuyun, 2021
Two typical oil injection failures of the same type occurred to 10726-S pneumatic-hydraulic actuators during production and operation. In order to better promote the development of the regional management mode of oil/gas pipelines and stations and ...
Guangtao YAN   +2 more
doaj   +1 more source

Control technique for linepack of natural gas pipeline network

open access: yesYou-qi chuyun, 2020
The control technique for linepack of natural gas pipeline network has been studied to ensure the safe and stable operation of gas pipeline network.
Xitong JIANG   +4 more
doaj   +1 more source

Test for effect of welding layers on girth weld toughness of X80 pipeline steel

open access: yesYou-qi chuyun, 2022
The girth welds of natural gas pipelines applied by self-shielded flux cored semi-automatic welding process in multiple layers and passes are prone to failure, and the main reasons include the number of welding layers is less than that required by the ...
Ting WANG   +5 more
doaj   +1 more source

Monitoring technology for complex state of pipeline route based on optical fiber sensing

open access: yesYou-qi chuyun, 2020
It has been a hot research topic at home and abroad to sense the vibration, strain and temperature by communication optical fibers, so as to monitor and position the threat events along the pipeline, but how to realize the fusion and application of the ...
Yongjun CAI   +6 more
doaj   +1 more source

Design of composite membrane emergency drainage device for floating roof tank

open access: yesYou-qi chuyun, 2020
Emergency drainage device is an important safety device for floating roof tank to timely drain the overloaded water in case of emergency. In practical application, a large amount of maintenance work is required for the commonlyused float type emergency ...
Bin PU   +3 more
doaj   +1 more source

Oil Pipeline Markets and Operations [PDF]

open access: yesJournal of the Transportation Research Forum, 2010
Despite considerable literature regarding other modes of transportation, little is written about oil pipelines. This is remarkable given that oil pipelines move 17% of all intercity ton miles, but also understandable because they have a low public profile and, with near total automation, have few employees.
openaire   +2 more sources

Predicting pigging operations in oil pipelines

open access: yesCoRR, 2021
This paper presents an innovative machine learning methodology that leverages on long-term vibroacoustic measurements to perform automated predictions of the needed pigging operations in crude oil trunklines. Historical pressure signals have been collected by Eni (e-vpms monitoring system) for two years on discrete points at a relative distance of 30 ...
Riccardo Angelo Giro   +3 more
openaire   +3 more sources

FEATURES OF SUBJECTIVE SIGNS OF UNAUTHORIZED CONNECTION TO OIL PIPELINES, OIL PRODUCT PIPELINES AND GAS PIPELINES

open access: yesВестник Казанского юридического института МВД России, 2023
Введение: в статье рассматриваются особенности регламентации признаков субъекта и субъективной стороны преступления в виде самовольного подключения к нефтепроводам, нефтепродуктопроводам и газопроводам. Целью статьи является получение нового знания относительно особенностей субъективных признаков данного преступления с выработкой на этой основе выводов
openaire   +1 more source

Feasibility of eddy current inline inspection for crack-like defects of oil and gas pipelines

open access: yesYou-qi chuyun, 2021
The crack-like defects of oil and gas pipelines, especially the crack-like defects on the inner surface, are the main factors leading to pipeline failure.
Wen-bo XUAN   +3 more
doaj   +1 more source

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