Safety analysis of an offshore platform for leakage and deflagration accidents from adjacent oil and gas storage and transportation units

Cao, Yu; Liu, Andong; Cao, Mengyu; Jiang, Yong; Wang, Shiming; Bai, Yong

doi:10.1080/17445302.2020.1786234

Cited by 11 publications

(7 citation statements)

References 14 publications

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“…The accelerated pace and increase in production processes, as well as urbanization in modern conditions, are inseparably connected with the use of energy-intensive technologies and hazardous substances that increase the potential threat to human health and life, the environment and the material base of production [1,2]. The number of technological accidents and disasters, among which the leading position is occupied by fires, is constantly growing, so today most developed countries, including Russia, are moving to a security strategy based on the principles of the prediction and prevention of technological accidents [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Thermal Characteristics of Fireproof Plaster Compositions in Exposure to Various Regimes of Fire

et al. 2022

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The problems of the fire safety of oil and gas facilities are particularly relevant due to the increasing complexity of technological processes and production. Experimental studies of steel structures with three different types of plasters are presented to determine the time taken to reach the critical temperature and loss of bearing capacity (R) of the sample, as a result of reaching a rate of deformation growth of more than 10 mm/min and the appearance of the ultimate vertical deformation. The simulation of the heating of steel structures showed a good correlation with the results of the experiment. The consumption of the plaster composition for the steel column was predicted, which allowed a 38% reduction in the consumption of fireproofing. It was found that to obtain the required fire resistance limit, it is necessary to consider the fire regime and apply plaster compositions with a thickness of 30–35 mm, depending on their thermal characteristics. The dependence of thermal conductivity and temperature on density is obtained, showing that the use of plaster compositions with a density of 200 to 600 kg/m3 is optimal to ensure a higher fire resistance limit. It is shown that the values of thermal conductivity of plaster compositions at 1000 °C are higher by 8–10% if the structure is exposed to a hydrocarbon fire regime. It is shown that the values of the heat capacity of plaster compositions at 1000 °C are higher by 10–15% if the structure is exposed to a standard fire regime.

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Section: Introductionmentioning

confidence: 99%

Thermal Characteristics of Fireproof Plaster Compositions in Exposure to Various Regimes of Fire

et al. 2022

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“…Infrared imaging gas detection technology has seen rapid development in recent years; it uses the infrared radiation absorption spectrum of gas to achieve qualitative and quantitative analyses of gas. With the advantages of long-distance, wide-ranging and rapid detection, as well as being dynamic and intuitive, it has been widely used in industrial production, environmental monitoring, national defense security and other fields [1][2][3][4][5]. Infrared imaging detection technology is mainly divided into two forms: active and passive.…”

Section: Introductionmentioning

confidence: 99%

Dual-Channel Mapping–Gas Column Concentration Inversion Method Based on Multispectral Imaging

Shi,

Zhao,

Zhao

et al. 2024

Applied Sciences

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Infrared multispectral imaging technology can achieve the long-distance, wide-ranging and fast detection of target gas, and has been widely used in the fields of dangerous-gas detection and environmental monitoring. However, due to the difficulty in acquiring background radiation as well as atmospheric disturbance and noise interference in the detection process, the quantitative detection of gas concentration has become a difficult problem to solve. Therefore, this paper proposes an inversion method for gas column concentration based on infrared multispectral imaging technology. Firstly, infrared background radiation images of the non-target gas absorption spectrum band were collected and converted into background radiation images of the target gas absorption spectrum band according to the dual-channel mapping relationship. Then, combined with the gas radiation images of the target gas absorption spectrum band, the column concentration distribution of the gas was obtained by using the measured calibration relationship between absorbance and column concentration. Experiments of gas detection in different environments were carried out, and the column concentration distribution of the target gas was inverted using this method; the results showed that the average relative error of the inversion of the gas column concentration was 4.84%, which enables the quantitative detection of gas column concentration in a complex environment.

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“…Moreover, for the specific FPSO system, the topside region contains several processing installations and units, and so there is a high probability of oil and gas leakage [27,28]. Therefore, most quantitative risk assessments mainly focus on the effect of the fire and explosion on these regions, which results in the lack of completeness of corresponding risk assessments for FPSO systems [29].…”

Section: Introductionmentioning

confidence: 99%

Quantitative Risk Analysis of Oil and Gas Fires and Explosions for FPSO Systems in China

et al. 2022

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The LH11-1 FPSO is an 80,000 t cylindrical structure that is responsible for the processing, storage, and offloading of process oil from existing and newly developed oilfields. In this paper, a full probabilistic analysis was developed based on very detailed CFD simulation results to evaluate ventilation, gas dispersion, explosion, and fire scenarios. A detailed fire and explosion risk analysis of LH11-1 FPSO was performed based on NORSOK Z-013 and FABIG Technical Note 11. The risk-based calculations were performed applying FLACS, KFX, and DNV GLEXPRESS Fire. Finally, the oil and gas dispersion, fire, and explosion consequence risks were calculated under the credible combination of leak frequency and leak location. By this probabilistic risk analysis, it was found that the west wind could generate optimal ventilation conditions for the topside process area of FPSO compared to other wind directions, while the hull region was poorly ventilated for all wind directions. The explosion risk analysis showed that the FPSO system would take no action in terms of explosion risk according to the acceptance criteria of 10-4occ/year. Meanwhile, the fire risk analysis demonstrated that the PR1 first and second deck, PR2 first and second deck, process deck, offloading on starboard, and the base of the flare tower would have different impacts from the fire, and the PR1 first deck and PR2 first deck at the topside deck would be severely impacted regions.

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Safety analysis of an offshore platform for leakage and deflagration accidents from adjacent oil and gas storage and transportation units

Cited by 11 publications

References 14 publications

Thermal Characteristics of Fireproof Plaster Compositions in Exposure to Various Regimes of Fire

Thermal Characteristics of Fireproof Plaster Compositions in Exposure to Various Regimes of Fire

Dual-Channel Mapping–Gas Column Concentration Inversion Method Based on Multispectral Imaging

Quantitative Risk Analysis of Oil and Gas Fires and Explosions for FPSO Systems in China

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