Results 31 to 40 of about 3,908,903 (353)

Structural characteristics of pressure balanced plug valve and treatment methods for internal leakage

open access: yesYou-qi chuyun, 2020
Most of the imported Serck Audco pressure balanced plug valves are adopted for the bypass throttle valves, vent valves and station ESD vent valves of the block valve on the trunk line of PetroChina West-to-East Gas Pipeline.
Bopeng LYU   +7 more
doaj   +1 more source

Fast-assembling nitrogen injection device for hot work of pipeline in station

open access: yesYou-qi chuyun, 2020
Considering that the operation time should be saved as much as possible during the hot work of pipeline in oil and gas station, the time required for nitrogen injection, pipe cutting, welding, NDT and other processes in the hot work of pipeline in ...
Bopeng LYU   +7 more
doaj   +1 more source

A liquid loading prediction method of gas pipeline based on machine learning

open access: yesPetroleum Science, 2022
The liquid loading is one of the most frequently encountered phenomena in the transportation of gas pipeline, reducing the transmission ef fi ciency and threatening the fl ow assurance.
Bingyuan Hong   +7 more
semanticscholar   +1 more source

Operation of Natural Gas Pipeline Networks With Storage Under Transient Flow Conditions [PDF]

open access: yesIEEE Transactions on Control Systems Technology, 2021
We formulate a nonlinear optimal control problem for intraday operation of a natural gas pipeline network that includes storage reservoirs. The dynamics of compressible gas flow through pipes, compressors, reservoirs, and wells are considered.
S. K. K. Hari   +4 more
semanticscholar   +1 more source

Comprehensive evaluation on acidizing effect of injection and production gas Well X in Liuzhuang Gas Storage

open access: yesYou-qi chuyun, 2020
Liuzhuang gas storage is reconstructed based on depleted oil and gas reservoirs. The formation pressure coefficient of injection and production gas Well X is only about 0.4 when drilling.
Fenglin YAN   +4 more
doaj   +1 more source

Safety and security of oil and gas pipeline transportation: A systematic analysis of research trends and future needs using WoS

open access: yes, 2021
The terrorist attack on the Abqaiq oil plant in Saudi Arabia on September 14, 2019 attracted global attention to the significant role of safety and security in the sustainable oil and gas supply chain and the vulnerability of supply infrastructures ...
Chao Chen   +3 more
semanticscholar   +1 more source

Prediction of Mixing Uniformity of Hydrogen Injection inNatural Gas Pipeline Based on a Deep Learning Model

open access: yesEnergies, 2022
It is economical and efficient to use existing natural gas pipelines to transport hydrogen. The fast and accurate prediction of mixing uniformity of hydrogen injection in natural gas pipelines is important for the safety of pipeline transportation and ...
Yue Su   +6 more
semanticscholar   +1 more source

Practice of intelligent pipeline network development in West-East Gas Pipeline

open access: yesYou-qi chuyun, 2021
With the development and increasing application of the intelligent technologies such as big data, Internet of Things, cloud computing and artificial intelligence, the management in pipeline industry is transferring from the traditional way towards the ...
Kai LI   +3 more
doaj   +1 more source

Calculating method of coordinate of pipeline centerline based on a small caliber inertial measurement unit

open access: yesYou-qi chuyun, 2021
In order to improve the calculation accuracy of the inertial measurement coordinate data of in-service pipelines and thereby promote the pipeline digitization process with high quality, a calculation model of dead reckoning error of a small-caliber ...
Yi LIU   +5 more
doaj   +1 more source

A mathematical framework for modelling and evaluating natural gas pipeline networks under hydrogen injection [PDF]

open access: yes, 2008
This article presents the framework of a mathematical formulation for modelling and evaluating natural gas pipeline networks under hydrogen injection. The model development is based on gas transport through pipelines and compressors which compensate for ...
Azzaro-Pantel, Catherine   +3 more
core   +3 more sources

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