Predicting Service Life of Polyethylene Pipes under Crack Expansion using "Random Forest" Method

Aleksander G., P.; Yifan, T.; Fuming, Z.

doi:10.5829/ije.2023.36.12c.14

Cited by 4 publications

(2 citation statements)

References 49 publications

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“…The damage to the polyethylene pipeline will change the density and shape of polyethylene. The damage process of polyethylene pipeline can be simplified as density calculation, which can be calculated by universal theory function and modified density function (35)(36)(37). Suppose A: The mass of polyethylene per unit area is 𝑀 𝑡𝑜 , the mass obtained by the universal theory function is 𝑀 𝑎 (38), and the mass obtained by the modified density function is , then the calculation process of polyethylene pipeline damage is shown in Equation 1:…”

Section: Damage Process Of Polyethylene Pipelinementioning

confidence: 99%

Method for Assessing Damage to Gas Distribution Network Pipelines based on Nonlinear Guided Wave

Palaev G.,

Fuming,

Yifan

2024

IJE

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Polyethylene pipeline is an essential infrastructure of gas distribution network, and there are some problems such as complex damage assessment and tedious assessment process. How to choose an effective damage assessment method for polyethylene pipelines is the focus of the implementation of the gas distribution network at present. In this paper, a nonlinear directional wave method is proposed to detect the damage of polyethylene pipeline by an acoustic wave, and the damage results of polyethylene pipeline are searched. The rationality of this method is verified by calculating the aerodynamic equation.The results show that the nonlinear fixed wave method can accurately determine the damage and crack propagation degree of the pipeline and simplify the damage assessment process, and the results are superior to the linear directional wave method. Therefore, the nonlinear directional wave can be used to assess the damage to ethylene pipelines in gas distribution networks, which has strong rationality and practicality and provides support for the actual pipeline damage assessment.

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Section: Damage Process Of Polyethylene Pipelinementioning

confidence: 99%

Method for Assessing Damage to Gas Distribution Network Pipelines based on Nonlinear Guided Wave

Palaev G.,

Fuming,

Yifan

2024

IJE

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“…Sand production occurs in a wide range of hydrocarbon reservoirs, both composed of relatively young rocks of the Quaternary period and consolidated reservoirs at the final stages of development (1). Sand-related challenges significantly disrupt the oil production process, since it adversely affects the complex of subsurface and surface equipment and creates difficulties in the operation of wells (2,3). The topic of horizontal wells operation with sand production is particularly relevant.…”

Section: Introductionmentioning

confidence: 99%

Scientific and Methodological Support of Sand Management During Operation of Horizontal Wells

Tananykhin

2024

IJE

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The paper presents a new scientifically based approach for the selection of sand control technology, which is dedicated to enhance the efficiency of the development of unconsolidated reservoirs. Established laboratory and methodological complexes for physical simulating of the sand producing process were analyzed in order to obtain new knowledge and confirm the available theories. All of them have their advantages and disadvantages, but their simultaneous application revealed characteristic dependencies between the sand production and the studied parameter (grain size distribution, pressure drop, clay content, water cut, gas/oil ratio, etc.). Author proposed concepts of mathematical apparatus improvement to increase the quality of assessing the ability of formation fluids to transport particles of different grain size distribution within the formation, as well as in the inner part of tubing. The effect of each of the characterizing factors on suspended solids concertation (SSC) was studied as a result of more than 300 laboratory experiments. According to the observation, there is a sharp decrease in SSC after the first stage (sampling). Thus, the author determined that the main inflow of mechanical impurities occurs during flow stimulation and after shutdowns. In conclusion, author substantiated the method for limiting sand production using polymers with shape memory based on the results of the performed set of tests. Proposed method allows limited passage of particles with diameter less than 50 µm, which creates conditions for noncolmaticity of screen while maintaining geomechanical stability of bottom-hole formation zone.

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Analysis of numerical modeling of steady-state modes of methane–hydrogen mixture transportation through a compressor station to reduce CO2 emissions

Fetisov

2024

Sci Rep

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This study presents a mathematical model to evaluate the performance of gas pipelines during hydrogen injection in a gas pipeline-compressor station. The developed model presents the calculation of methane–hydrogen mixture (CH4/H2) transportation through the compressor station, where the compensation of pressure drops in the mass and energy balance takes place. Simultaneously, in the operation of the centrifugal blower system of gas compressor stations, the emissions of CO2 are considered, considering the mixing of gas media and the compression of CH4/H2. This mathematical model is realized for the pipeline transportation of hydrogen, at which the principle of mixture expansion occurs. The aim is to solve the problem of CO2 emissions at compressor stations. The optimization procedure has been formulated using a system of nonlinear algebraic equalities. The research focuses on the adaptation of existing gas transportation systems to CH4/H2 transportation and the impact of environmental risks on the operation of compressor station equipment. In this case, it is possible to determine the quantitative amount of hydrogen that can be added to natural gas. By solving the problem of finding the inner point of sets using the system of nonlinear algebraic equalities, it is possible to obtain the control parameters for safety control of technological modes of CH4/H2 mixture transportation. The study findings reveal that the consumption of gas charger and hydrogen was 50.67 and 0.184 kg/s, respectively, and the estimated efficiency resulting from the modified turbine design was 75.1 percent. These results indicate that the equipment operates more efficiently when hydrogen is being transported. The numerical analytical results indicated in this study hold practical significance for design applications. It will assist in identifying and evaluating the restrictions that may develop during the technological, operational, and design stages of decision-making.

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Predicting Service Life of Polyethylene Pipes under Crack Expansion using "Random Forest" Method

Cited by 4 publications

References 49 publications

Method for Assessing Damage to Gas Distribution Network Pipelines based on Nonlinear Guided Wave

Method for Assessing Damage to Gas Distribution Network Pipelines based on Nonlinear Guided Wave

Scientific and Methodological Support of Sand Management During Operation of Horizontal Wells

Analysis of numerical modeling of steady-state modes of methane–hydrogen mixture transportation through a compressor station to reduce CO2 emissions

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