System for dispensing and continuously measuring the flow of solid particles into a hot high pressure gas flow

Erosion phenomenon is quite common in petroleum industry, as one of the main mechanisms of material degradation, occurs frequently on high-pressure pipelines in hydraulic fracturing operation. With the increasing of operation times, the erosion and corrosion defects on the inner surface of the pipeline, would lead to serious material loss and equipment failure. In this paper a new type of test machine was developed to simulate the erosive wear behavior of metal materials caused by the multiphase fluid such as fracturing fluid, and study the erosion failure mechanism by various metal erosion influencing factors including the velocity of multiphase flow, solid particles of fracturing proppant and impact angles, etc. The erosion-wear experiments on 20CrNiMo steels used in high-pressure pipelines is described in detail. Finally, the microcosmic surface testing was also used to analyze the erosion failure mechanism of metal materials for high pressure pipelines.

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Transient Flow Characteristic of High-Pressure Hydrogen Gas in Check Valve during the Opening Process

Energies ◽

10.3390/en13164222 ◽

2020 ◽

Vol 13 (16) ◽

pp. 4222

Author(s):

Jianjun Ye ◽

Zhenhua Zhao ◽

Jinyang Zheng ◽

Shehab Salem ◽

Jiangcun Yu ◽

...

Keyword(s):

High Pressure ◽

Gas Flow ◽

Transient Flow ◽

Check Valve ◽

Hydrogen Gas ◽

Strong Impact ◽

Hydrogen Flow ◽

Hydrogen Systems ◽

Pressure Hydrogen ◽

Opening Process

In high-pressure hydrogen systems, the check valve is one of the most easy-to-damage components. Generally, the high-pressure hydrogen flow can generate a strong impact on the check valve, which can cause damage and failure. Therefore, it is useful to study the transient flow characteristics of the high-pressure hydrogen flow in check valves. Using dynamic mesh generation and the National Institute of Standards and Technology (NIST) real hydrogen gas model, a transient-flow model of the high-pressure hydrogen for the check valve is established. First, the flow properties of high-pressure hydrogen during the opening process is investigated, and velocity changes and pressure distribution of hydrogen gas flow are studied. In addition, the fluid force, acceleration, and velocity of the valve spool are analyzed quantitatively. Subsequently, the effect of the hydrogen inlet-pressure on the movement characteristic of the valve spool is investigated. The results of this study can improve both the design and applications of check valves in high-pressure hydrogen systems.

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Applied computer model of the non-stationary gas flow in a long multilayer-insulated high-pressure subsea gas pipeline

Doklady Chemistry ◽

10.1134/s0012500816090020 ◽

2016 ◽

Vol 470 (1) ◽

pp. 279-282 ◽

Cited By ~ 1

Author(s):

V. P. Meshalkin ◽

A. M. Chionov ◽

A. S. Kazak ◽

V. M. Aristov

Keyword(s):

High Pressure ◽

Computer Model ◽

Gas Flow ◽

Gas Pipeline

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Temperature Prediction for High Pressure High Temperature Condensate Gas Flow Through Chokes

Energies ◽

10.3390/en5030670 ◽

2012 ◽

Vol 5 (3) ◽

pp. 670-682 ◽

Cited By ~ 9

Author(s):

Changjun Li ◽

Wenlong Jia ◽

Xia Wu

Keyword(s):

High Pressure ◽

High Temperature ◽

Gas Flow ◽

Temperature Prediction ◽

High Pressure High Temperature ◽

Flow Through

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Turbine-Compressor Train Uprated for 30% Increase in Gas Flow

Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations ◽

10.1115/91-gt-049 ◽

1991 ◽

Author(s):

C. D. (Charlton) Breon ◽

D. R. (Daniel) Veth

Keyword(s):

High Pressure ◽

Natural Gas ◽

Gas Turbine ◽

Centrifugal Compressor ◽

Gas Flow ◽

Gas Injection ◽

Oil Field ◽

General Electric ◽

Prudhoe Bay

A turbine-compressor train consisting of a General Electric MS5001 Model R single-shaft gas turbine, a Philadelphia Gear speed-increasing gearbox, and a Dresser-Clark centrifugal compressor was uprated for 30% increased gas throughput. This train is one of thirteen units operated by ARCO Alaska, Inc. for high pressure natural gas injection service in Alaska’s Prudhoe Bay Oil Field. The uprate included an in-place conversion of the gas turbine from a Model R to a Model P configuration. This paper describes the engineering, planning, and implementation activities that led up to the successful uprate of this train with only a 24 day equipment outage.

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LES of Particle-Laden Flow With Inter-Particle Collisions

Fluids Engineering ◽

10.1115/imece2003-42663 ◽

2003 ◽

Author(s):

Mikhael Gorokhovski ◽

Anna Chtab

Keyword(s):

Gas Flow ◽

Particle Interaction ◽

Solid Particles ◽

Particle Interactions ◽

Particle Collisions ◽

Cpu Time ◽

Eddy Simulation ◽

Preferential Concentration ◽

Large Eddy ◽

Particle Laden Flow

By analogy with kinetic approach, the gas-solid turbulent flow was considered as an ensemble of interacting both stochastic liquid and solid particles. In this way, the motion equation for the solid particle along a smoothed trajectory has been derived. To close this equation, the statistical temperature of particles has been introduced and expressed by statistical properties of turbulence. The smoothed particles dynamics was then computed along with large-eddy simulation (LES) of turbulent channel gas flow with “two-way” coupling of momentum. The calculated results are compared with the experiment of Kulick et. al. (1994) and with computation of Yamomoto et. al. (2001), where the inter-particle interaction has been simulated by hard-sphere collisions with prescribed efficiency. It has been shown that our computation with smoothed motion of particle is relatively in agreement with experiment and computations of Yamomoto et. al. (2001). At the same time, the model presented in the paper has a following advantage: it, practically, does not require an additional CPU time to account for inter-particle interactions. The turbulence attenuation by particles and the preferential concentration of particles in the low-turbulence region have been shown.

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Einfluß der Strömungsform des Gases auf die chemischen Transportprozesse in Halogenglühlampen

Zeitschrift für Naturforschung A ◽

10.1515/zna-1974-1014 ◽

1974 ◽

Vol 29 (10) ◽

pp. 1471-1477

Author(s):

Gerhard M. Neumann

Keyword(s):

High Pressure ◽

Laminar Flow ◽

Gas Phase ◽

Flow Separation ◽

Gas Flow ◽

Chemical Transport ◽

Transport Processes ◽

Inert Gas ◽

Good Accord ◽

Incandescent Lamps

Abstract By raising the inert gas pressure and thus changing the type of gas flow chemical transport processes in tubular halogen incandescent lamps may be influenced. At medium pressures in the region of laminar flow separation of halogen and inert gas due to thermodiffusion occurs, the halogen cycle breaks down, and bulb blackening of the lamp is observed. At low and high pressure, where the streaming behaviour of the gas phase is dominated by diffusion or turbulence, separation of halogen and inert gas is overcome and the lamps stay clean. Observed pressures for changing from laminar to turbulent flow are 3.5 atm in xenon, 5.5 atm in krypton, and > 8 atm in argon in good accord with the well-known Reynolds' criterion.

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