Field experience and evaluation of the South Pars sea line pigging, based on dynamic simulations

Davoudi, Mehdi; Heidari, Yashar; Mansoori, Seyed Ali Akbar

doi:10.1016/j.jngse.2014.02.013

Cited by 20 publications

(8 citation statements)

References 7 publications

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“…At present, many scholars have used OLGA to conduct a large number of numerical simulation calculations on gas‐cap emptying, pigging, and other fields, and CAESAR II stress analysis software has also been widely applied to stress analysis of buried pipelines, which shows that the OLGA and the CAESAR II numerical simulation results are in good agreement with experiment results. We will use these software packages to build a computational model of the pipeline.…”

Section: Physical Model and Boundary Conditionsmentioning

confidence: 79%

Analysis of the water‐filling process for crude oil pipelines with a large drop in height

Liu

Guo

Wang

et al. 2020

Energy Science & Engineering

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To explore the problem of the slack flow and waterhead having a huge impact on the low point of a pipeline during the water-filling process of a large-drop pipeline, the crossing section of the Nujiang China-Myanmar crude oil pipeline (for which the maximum height difference is 1480 m) is taken as an actual case, and water filling of an oil pipe segment with a large drop is simulated based on an OLGA multiphase flow transient simulation. The maximum velocity, pressure, and corresponding liquid holdup at different low points of the pipeline are studied, and the variations of water flow velocity, pressure, and liquid holdup with time at different low points under different load conditions are obtained. A stress analysis of the pipeline is performed through CAESAR II. The results showed that, when the volume flow rate was 900-2000 m 3 /h, the probability of slug flow in pipe could be reduced by 57%. Meanwhile, the tube pressure fluctuation and damage to the pipeline and equipment are reduced and pipeline transportation efficiency is improved, thereby providing an effective basis for engineering practice.

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Section: Physical Model and Boundary Conditionsmentioning

confidence: 79%

Analysis of the water‐filling process for crude oil pipelines with a large drop in height

Liu

Guo

Wang

et al. 2020

Energy Science & Engineering

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“…1a and should also be given enough consideration. The security issues and regular inspection and cleaning for these pipelines become even more necessary [10,11].…”

Section: Introductionmentioning

confidence: 99%

Multi-jointed pneumatic sealing disc of fluid-driven pipeline robot: Impacts of structural parameters on performance

Yue

Yang

et al. 2023

Preprint

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Pipeline inspection gauge (PIG) is often blockage in the aging pipelines of stacked objects owing to the limitation of its passive control. In this study, a novel sealing disc with multi-jointed pneumatic webbed foot was designed which can achieve partial active control and ensure better seal performance. A finite element method (FEM) was proposed and successfully verified, then the bend performance of the sealing disc with single inflated foot was compared with whole inflated feet using the FEM, and the results show that they have good consistency. Next, the effects of two kinds of materials and five structural parameters on the performance of the sealing disc were studied using the FEM. The results show that the multi-material structure has batter performance on the bending angle and the expansion ratio compared to the same materials. As the air pressure grows, the position parameter of the joint (he) has little effect on the bending angle as well as the expansion ratio, and the bottom disc thickness (hd) has also slightly influence on the expansion ratio. Meanwhile, the thicker the webbed foot thickness (ht), the smaller the slope angle (β) and the thinner (hd), the larger the bending angle; the smaller the slope angle, the thicker the webbed foot thickness, the larger the expansion ratio. The conclusions obtained in this paper are beneficial for the design and optimization of PIG sealing discs for actively controlling. The research results provide theoretical reference for the study of intelligent and efficient pipeline pigging technology.

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“…However, safety condition of aging pipelines due to long usage is a subject of concern even more than ever. Periodic pigging of pipelines for dewatering, cleaning, and inspecting has become a standard industry procedure, which is aimed at enhancing pipeline safety and integrity in service (Nguyen et al, 2001c;Nguyen et al, 2001d;Nguyen et al, 2001a;Nguyen et al, 2001b;Kim et al, 2003;Davoudi et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of contact force on bi-directional pig in gas pipeline: At the early stage of pigging

Zhu

Zhang

et al. 2015

Journal of Natural Gas Science and Engineering

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Field experience and evaluation of the South Pars sea line pigging, based on dynamic simulations

Cited by 20 publications

References 7 publications

Analysis of the water‐filling process for crude oil pipelines with a large drop in height

Analysis of the water‐filling process for crude oil pipelines with a large drop in height

Multi-jointed pneumatic sealing disc of fluid-driven pipeline robot: Impacts of structural parameters on performance

Numerical simulation of contact force on bi-directional pig in gas pipeline: At the early stage of pigging

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