Risk Assessment System for Oil and Gas Pipelines Laid in One Ditch Based on Quantitative Risk Analysis

Zhang, Peng; Qin, Guojin; Wang, Yihuan

doi:10.3390/en12060981

Cited by 49 publications

(24 citation statements)

References 56 publications

(56 reference statements)

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“…Table 4 shows the parameters of the X52 suspended pipeline with corroded defects. Combined with the time-dependent reliability model and the limit state equation for a suspended pipeline with corroded pipeline has the following form [34][35][36]: Considering the interaction of the corroded depth, corroded width, and suspended length, the matrix of interaction coefficient can be constructed as:…”

Section: Non-probabilistic Time-dependent Reliability Analysis Involvmentioning

confidence: 99%

Non-Probabilistic Time-Varying Reliability-Based Analysis of Corroded Pipelines Considering the Interaction of Multiple Uncertainty Variables

et al. 2019

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Reliability analysis of corroded pipelines is critical to the integrity and safe working of pipeline infrastructure. Aiming at less probability information is obtained for corrosion pipeline engineering, and the mechanical properties of pipeline with corrosion defects deteriorate caused by the accumulative effect of corrosion growth. Based on the quasi-static analysis method and non-probability theory, this paper presents a reliability model for assessing corroded pipelines with corrosion growth. In fact, reliability analysis of corroded pipelines needs to consider the interaction of multiple uncertainty variables. By introducing interaction theory, a mathematical model of corrosion defects considering the interaction of variables is put forward. Moreover, this paper develops a non-probabilistic time-varying reliability method for pipeline systems with multiple defects. Thus, several numerical examples are investigated to discuss the effectiveness of the proposed methodology. The results show that a two-dimensional or even three-dimensional ellipsoid model with correlation has more accurate results to evaluate corroded pipelines under the interaction of multiple corroded defects with poor information. Furthermore, a non-probabilistic time-varying reliability model is established according to the time-varying characteristics of the corroded pipeline under the influence of multiple factors. An effective complement to the theory of non-probabilistic reliability analysis of system is investigated. The analysis of the results suggests that interaction of corroded pipeline has a negligible impact on reliability. It also provides a theoretical basis for maintenance and is of great significance for risk- and reliability-informed decisions regarding buried oil and gas pipelines.

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Section: Non-probabilistic Time-dependent Reliability Analysis Involvmentioning

confidence: 99%

Non-Probabilistic Time-Varying Reliability-Based Analysis of Corroded Pipelines Considering the Interaction of Multiple Uncertainty Variables

et al. 2019

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“…They obtained a functional relationship between the total pipelines and the risk of each pipeline by combination of the system reliability theory with the method of mathematical induction. They developed risk acceptance criteria for risk analysis and pipeline maintenance manual (Zhang et al, 2019). Hadisuwito and Hassan during a study entitled "Drought Index Calculation Methods Using Electre, Topsis, and Analytic Hierarchy Process", investigated several methods in drought calculation.…”

Section: Background Researchmentioning

confidence: 99%

Untitled

2019

IJET

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This study was carried out aimed to investigate risks affecting increased delays in drinking water pipeline transport projects (Case Study: Regional Water Company, Kermanshah Province). The statistical population in the present study consists of employees and contractors of Kermanshah regional water company. The interview was conducted with 25 people in order to collect information and conduct interviews about the characteristics of the model. The analytic hierarchy process (AHP) was performed. According to the results, among the identified areas related to the group of risks related to the considerations and geological conditions of the region, the risk related to the presence of faults in the area with a calculated weight of 0.19 and a trench bed settlement with a calculated weight of 0.13 and collision with clay soil in the path with the calculated weight of the 12/0 were selected as the most important effective factors. According to the results of the main criteria validation, among the five main criteria examined, the risk related to the conditions of piping with a weight of 0.47 was the most important indicators. After that, the risks related to the considerations and geological conditions of the region and the risks associated with access to the materials and materials needed for the project, each with a weight of 0.21, were considered as important factors in determining the risk of the Kermanshah water transport pipeline project. The analysis of project risksare critical in important and high-risk projects such as water transport pipelines projectsdue tothe strategic importance of drinking water supply. Although civil engineers alone do not make critical decisions on these issues, but they are responsible for providing some specialized information to final decision makers. Surface waters and underground waters are considered as one of the main and key sources of drinking water.It is necessary for human life to know thatthe balance of water resources is threatened in quantitative and qualitative terms, in the last few decades, due to increasing population growth followed by an increase in the water needs of the country.One of the important parts of the water processesis the transfer from the source to the refinery and the transfer to the distribution network for consumption. This direction should be prevented by applying proper management and implementing the principled plans to increase the cost of transferring and constructing and constructing water transmission projects in different sectors.In this regard, it should be prevented from increasing the transfer and construction cost of water transfer projects in different sectors by proper management and implementation of substantiveplans. Each section of the project mustidentify the project risks within the project scope while aware of the activities and responses of other sectors. This study has investigated the effect of risk affecting increasing delays in drinking water transport pipelines projects in Kermanshah.

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“…Many countries have realized that a preponderance of environmental problems is caused by livestock manure and have performed treatment and resource utilization on livestock manure [4]. At present, a shortage of energy and the utilization of renewable energy are of great significance [5][6][7][8]. Resource utilization of livestock manure is an effective method to reduce pollution, specifically the production of methane, and anaerobic digestion (AD) has great potential in this connection [9,10].…”

Section: Introductionmentioning

confidence: 99%

Anaerobic Digestion Technology for Methane Production Using Deer Manure Under Different Experimental Conditions

Wang

Sheng

et al. 2019

Energies

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Anaerobic digestion (AD) is an important technology for the treatment of livestock and poultry manure. The optimal experimental conditions were studied, with deer manure as a fermentation material and mushroom residue as an inoculum. At the same time, methane production was increased by adding zeolite and changing the magnetic field conditions. The results showed that a 6% solid content was the best condition for producing methane. The optimal conditions for methane production were obtained by adding 35 g of mushroom residue to 80 g of deer manure at 35 °C. The addition of organic wastewater (OW) improved methane production. The result of improving the methane production factor showed that adding zeolite during the reaction process could increase the methane production rate. When the amount of zeolite was over 8% total solids (TSes), methane production could improve, but the rate decreased. Setting a different magnetic field strength in the AD environment showed that when the distance between the magnetic field and the reactor was 50 mm and the magnetic field strength was 10–50 mT, the methane production increment and the content of methane in the mixed gases increased.

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Risk Assessment System for Oil and Gas Pipelines Laid in One Ditch Based on Quantitative Risk Analysis

Cited by 49 publications

References 56 publications

Non-Probabilistic Time-Varying Reliability-Based Analysis of Corroded Pipelines Considering the Interaction of Multiple Uncertainty Variables

Non-Probabilistic Time-Varying Reliability-Based Analysis of Corroded Pipelines Considering the Interaction of Multiple Uncertainty Variables

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Anaerobic Digestion Technology for Methane Production Using Deer Manure Under Different Experimental Conditions

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