Results 21 to 30 of about 945,953 (264)

Analysis and countermeasures for product pipeline internal corrosion based on first-run in-line inspection data

open access: yesYou-qi chuyun, 2020
In order to monitor, prevent and control the corrosion in in-service product pipelines, the value of the first-run inline inspection data was further mined, and the analysis idea was proposed in such a way that, the internal corrosion sensitive area ...
Wei HE   +4 more
doaj   +1 more source

Technical status and considerations of brittle fracture control of pipe fittings

open access: yesYou-qi chuyun, 2020
The station temperature of China-Russia Eastern Gas Pipeline Project is designed low to -45 ℃, which poses new challenges to the brittle fracture prevention capability of pipeline facilities, so it is necessary to set up scientific and reasonable ...
Feng WANG   +4 more
doaj   +1 more source

Research progress of erosion wear in oil and gas pipeline industry

open access: yesYou-qi chuyun, 2021
In the process of oil & gas storage and transportation, a large number of solid particles carried by the medium may lead to depressurization, blockage, corrosion, abrasion and other phenomena.
Donghua PENG   +3 more
doaj   +1 more source

Determination of Hydro-Erosion Wear Coefficient for Sealing Elements of Pipeline Fittings

open access: yesEnergy Engineering and Control Systems, 2018
A model of hydro-erosion wear of sealing elements was constructed taking into account a set of parameters that reflect the physical properties of the fluid and the material of the sealing elements, as well as the design parameters of the valves.
Zinoviy Stotsko, Roman Sheremeta
doaj   +1 more source

Loosening Monitoring of a Threaded Pipe Connection Using the Electro-Mechanical Impedance Technique—Experimental and Numerical Studies

open access: yesSensors, 2018
Threaded connections are the most common pipe fittings used in oil and gas transportation systems. Due to external vibrations, cyclic loads, and pollution, the fitting parts may start getting loose, which could result in pipeline leaks and other ...
Yabin Liang   +3 more
doaj   +1 more source

Progress and prospects of research and application of X80 pipeline steel and steel pipe in China

open access: yesYou-qi chuyun, 2020
With the rapid development of oil and gas pipeline construction, X80 pipeline steel and steel pipe have been applied on large scale. The research and application history and main progress of X80 high-grade pipeline steel and steel pipe in China were ...
Yaorong FENG   +4 more
doaj   +1 more source

Numerical Simulation of Gas-Solid Two-Phase Erosion for Elbow and Tee Pipe in Gas Field

open access: yesEnergies, 2021
Erosion caused by solid particles in a pipeline is one of the main problems endangering the safety production of the oil and gas industry, which may lead the equipment to malfunction or even fail.
Bingyuan Hong   +8 more
doaj   +1 more source

Investigation into the hydrodynamic processes of fitting connections for determining pressure losses of transport hydraulic drive

open access: yesTransport, 2020
The article presents the findings of theoretical and experimental research on hydraulic processes occurring in the hydraulic drives of transport machines.
Mykola Karpenko, Marijonas Bogdevičius
doaj   +1 more source

In-service automatic welding technology for high-grade large-diameter oil and gas pipelines

open access: yesYou-qi chuyun, 2021
As more long-distance oil and gas pipelines with high pressure, large diameter, high steel grade and large wall thickness are constructed, the wall of the fittings such as the hot tapping tees and the repair sleeves that are involved in the in-service ...
Juan CHEN   +7 more
doaj   +1 more source

Reinforcement test of epoxy-filled steel sleeves for girth weld defects of X80 pipelines

open access: yesYou-qi chuyun, 2021
In order to verify the applicability of epoxy-filled steel sleeves for reinforcement of the girth weld defects in X80 steel pipelines, X80 pipe fittings with 1 016 mm diameter were selected as the specimens and on the specimens two girth welds with same ...
Dongliang YU   +6 more
doaj   +1 more source

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