Results 21 to 30 of about 347,254 (269)

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

Floatation of Buried Submarine Pipeline under Cyclic Loading of Water Pressure -Numerical and Experimental Studies- [PDF]

open access: yes, 2000
A dynamic response of a submarine pipeline buried in sandy seabed sediments to water loading generated by harmonically oscillating water-table vertical movements is examined in the present report experimentally and numerically.
Maeno, Shiro   +2 more
core   +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

Gas Turbine Application to CO2 Pipeline: A Techno-Economic and Environmental Risk Analysis [PDF]

open access: yes, 2014
Gas Turbines (GTs) are used extensively in pipelines to compress gas at suitable points. The primary objective of this study is to look at CO2 return pipelines and the close coupling of the compression system with advanced prime mover cycles ...
El-Suleiman, Abdussalam
core   +7 more sources

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

Optimal Design of Capsule Transporting Pipeline carrying Spherical Capsules [PDF]

open access: yes, 2012
A capsule pipeline transports material or cargo in capsules propelled by fluid flowing through a pipeline. The cargo may either be contained in capsules (such as wheat enclosed inside sealed cylindrical containers), or may itself be the capsules (such as
Ubbi, Kuldip   +2 more
core   +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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