Research on Implementation Method and Technical Application of Risk Assessment to Storage Tank at National Petroleum Reserves

2020 ◽  
Author(s):  
Zhou Fang ◽  
Zhe Wang ◽  
Guanghai Li
Keyword(s):  
Risk Assessment ◽  
Crude Oil ◽  
Storage Tank ◽  
Research Work ◽  
Assessment Method ◽  
Storage Tanks ◽  
Technical Application ◽  
Inspection Method ◽  
Oil Storage ◽  
Risk Assessment Method

Abstract The inspection method based on risk was studied about 23 large tanks of a national strategic oil reserve base, which was a relatively large research work, because the tank inspection was a non-statutory inspection that received little attention, and the risk assessment method of large oil storage tanks in the actual project application was not mature enough. The basic information of 23 nominal volume one hundred thousand cubic meters crude oil tank was collected and sorted. 23 storage tanks under the application of risk assessment are all aboveground atmospheric storage tanks. 23 storage tanks are all floating-roof tanks, whose host materials include SPV490Q, 16MnR, Q235-B, and Q235-A; the containing medium for storage tank are crude oil, and time-to-use starts from August 2006 to April 2007. The implementation process of tank risk assessment was described, and the process of implementing risk assessment was described in detail. The method of risk trend analysis is studied, and the routine maintenance and maintenance suggestions are given. The results show that the risk assessment method for the tank can be implemented, and has been recognized by the tank management unit, providing a rare real case.

The Evaluation of the Influence of Geographic and Meteorological Factors on Heat Transfer in the Case of Crude Oil Storage in Overground Tanks

2017 ◽  
Vol 68 (6) ◽  
pp. 1384-1391
Author(s):  
Tudora Cristescu ◽  
Monica Emanuela Stoica ◽  
Silvian Suditu
Keyword(s):  
Heat Transfer ◽  
Standard Model ◽  
Crude Oil ◽  
Heat Loss ◽  
Experimental Research ◽  
Storage Tank ◽  
Meteorological Factors ◽  
Storage Tanks ◽  
Oil Storage ◽  
Main Factors

The study aims to analyze the main factors that influence the transfer of heat in the case of crude oil storage. A model based on the computing relations taken from specific publications was developed. The case studies were conducted on the basis of experimental research on several oil storage tanks, located in an oil transit station in Romania. The following two cases were analyzed, i.e., when the crude oil is heated and stagnates in the storage tank, and when it only stagnates, respectively. The analysis and application of the developed standard model facilitated the establishing of the factors that influence heat transfer. The influence of the geographic position and meteorological factors was also analyzed, which led to the formulation of conclusions with respect to the heat loss that occurs through the walls of the tanks.

Benchmarking for up-to-date risk assessment methods for safety assurance

2017 ◽  
pp. 5-15 ◽  
Author(s):  
Roman Gabdulkhakov ◽  
Rinat Yagudin ◽  
Askar Bakhtiyarov ◽  
Elena Elizareva ◽  
Roman Marvanov
Keyword(s):  
Risk Assessment ◽  
Failure Mode ◽  
Practical Importance ◽  
Research Work ◽  
Assessment Method ◽  
Assessment Methods ◽  
Good Time ◽  
Event Tree ◽  
Risk Assessment Method ◽  
Criticality Analysis

Objective: Performing a multiple factor analysis of the existing risk assessment methods based on the developed applicability characteristics for a given method at risk assessment phases. To ensure both industrial and environmental safety, a risk-based approach has become specifically relevant as one of the efficient instruments used in crisis management. Methods: When a risk analysis for hazardous industrial facilities is performed for potential emergencies, such analysis should be done along two primary lines – identifying the risk for preventive protection and insurance measures to be correctly arranged and implemented, as well as forecasting how the consequences of risks actualized will evolve for immediate protective measures to be arranged and planned in good time. At the same time, there are now scores of risk assessment methods, approaches and methodical guidelines for calculation that are notionally divided into five primary groups: observation methods, supplementary methods, scenario analysis, functional analysis, statistical methods. Each risk assessment method has its own specifics, field of use, relevant parameters and qualitative and quantitative characteristics expressed. Results: maintenance and toxicological risk assessment are excluded from the risk assessment methods, the most efficient methods being identified as follows: Failure mode and effects analysis (FMEA) and Failure mode, effects and criticality analysis (FMECA), maintenance focused on reliability assurance, Human reliability analysis (HRA), Event tree analysis (ETA), Layer of protection analysis (LOPA), Structured what if technique (SWIFT). Practical importance: For making a reasonable choice between the methods, benchmarking for the above methods has been performed on which basis the most acceptable approaches are identified. The resulting risk assessment method comparison table has a practical relevance for design and research work performed in forecasting and analyzing industrial and environmental hazards.

Quantitative Risk Assessment Method of the Domino Effect in Crude Oil Terminal Pool Fires

2014 ◽  
Vol 1030-1032 ◽  
pp. 570-573
Author(s):  
Xue Rui Xu ◽  
Lei Guan ◽  
Xing Zheng He
Keyword(s):  
Risk Assessment ◽  
Crude Oil ◽  
Assessment Method ◽  
Quantitative Risk Assessment ◽  
Pool Fires ◽  
Domino Effect ◽  
Risk Assessment Method ◽  
Accident Scenarios

The study analyzes domino accident scenarios in crude oil terminal and establishes quantitative risk assessment steps to assess domino effects.

Determining the Subsidence of Oil Storage Tank Walls from Geodetic Leveling

2011 ◽  
Vol 367 ◽  
pp. 467-474 ◽  
Author(s):  
R. Irughe Ehigiator ◽  
J.O. Ehiorobo ◽  
M.O. Ehigiator ◽  
Ashraf A. Beshr
Keyword(s):  
Crude Oil ◽  
Least Squares ◽  
Storage Tank ◽  
Parallel Plate ◽  
Monitoring Network ◽  
Control Points ◽  
Storage Tanks ◽  
Estimation Model ◽  
Oil Storage ◽  
Oil Storage Tank

In this paper the monitoring for subsidence in crude oil storage tanks by the method of Geodetic leveling is discussed. The monitoring network consisted of three control points established about 100m from the tank and 16 studs established at the base of the tank. From the control points, the stud locations were leveled using a geodetic level with parallel plate micrometer and telescopic staves. All levels were run in forward and reverse directions and the measurements were carried out in 2003, 2004 and 2008. Adjustment of observation was carried out using the least squares estimation model to determine the elevation of each stud position in the three measurement epochs together with their accuracy standards. Comparisons were made of the calculated movements from the three measurement epochs and the associated accuracies calculated from the least squares model. Analysis of the results indicated that with the exception of one stud ( stud 8), all other studs emplaced had moved and the movements ranged from 0.91mm to 13.06mm

scholarly journals Wind-resistant optimization design of large storage tanks in island-type petrochemical parks

2021 ◽  
Vol 261 ◽  
pp. 01017
Author(s):  
Haoran Hu ◽  
Jian Guo ◽  
Bingyuan Hong ◽  
Yan Yan ◽  
Xu Yang ◽  
...  
Keyword(s):  
Crude Oil ◽  
Storage Tank ◽  
Optimization Design ◽  
Ring Structure ◽  
Strong Wind ◽  
Storage Tanks ◽  
Static Structure ◽  
Element Analysis ◽  
Oil Storage ◽  
The Finite Element Analysis

Due to the thin-walled wind-sensitive structures of large crude oil storage tanks, it is necessary to consider the wind load failure of oil storage tanks in coastal areas under strong wind conditions during the design process. Based on the finite element analysis software ANSYS\Workbench, the static structure analysis and buckling analysis of the 100, 000 cubic crude oil storage tanks are carried out. In order to solve the buckling failure phenomenon, a wind-resistant ring structure was optimal designed for the crude oil storage tank according to standards, so that the storage tank can withstand hurricanes and typhoons above level 12 with a wind speed of 137 km/h.

Online AE Inspection and Safety Assessment of Vertical Storage Tank

2007 ◽  
Author(s):  
Weihe Guan ◽  
Yuanhong Tao ◽  
Xuedong Chen ◽  
Rong Yuan ◽  
Yingfeng Chen
Keyword(s):  
Crude Oil ◽  
Storage Tank ◽  
Safety Assessment ◽  
Present Condition ◽  
Laboratory Simulation ◽  
Storage Tanks ◽  
Internal Corrosion ◽  
Continuous Increase ◽  
Disastrous Consequence ◽  
Oil Storage

With the rapid growth of the global petroleum industry and continuous increase of energy demand, the crude oil and product oil reserve has been given a general concern in every country, and the requirements for the reserve capacity of various types of petroleum storage depots become higher and higher, therefore, the quantity of various types of storage tanks is increasing dramatically. At present, 100,000m3 storage tank has become the primary structure for construction of crude oil storage tanks for Chinese petrochemical industry. Large vertical metal storage tank features large capacity, central distribution, storage of inflammable, explosive and toxic media etc., leakage or explosion accident, once happens, often results in disastrous consequence and severe environmental pollution, which brings a huge loss and hazard to social economy, production and people’s living. The major cause for the accidents of storage tanks is corrosion and leakage, the external corrosion is mainly the soil corrosion and moist atmospheric corrosion of outer wall of oil tank baseplate; the internal corrosion is the corrosion of tank bottom, tank wall and tank top. Among the above corrosions, the most hard to treat is the corrosion of tank baseplate. In this paper through laboratory simulation of AE tests of leakage of storage tank and corrosion of baseplate and comparison between online AE inspection of more than 30 large vertical storage tanks and shutdown inspection of part of storage tanks, the matters about online AE inspection techniques for corrosion and leakage of storage tank baseplate and safety assessment of vertical storage tank are discussed, online AE inspection technique and assessment standard fit for China’s present condition are proposed, the safety class and corresponding shutdown inspection cycle of vertical storage tank are determined, the storage tanks where no problems are found by online AE inspection continue their service, whereas the storage tanks where severe problems are found are shut down for inspection, thus the contradiction between shutdown inspection and safe production is basically solved.

Crude Oil Storage Tank Refurbishment Duration Optimized by 40% Through Advanced Techniques

2021 ◽  
Author(s):  
Saeed Mubarak Al Yammahi ◽  
Mohamed Obaid Al Kaabi ◽  
Rashid Hamad Al Zaabi ◽  
Sachin Ashok Shendge ◽  
Manly Vista Dizon ◽  
...  
Keyword(s):  
Crude Oil ◽  
Storage Tank ◽  
Storage Tanks ◽  
Project Schedule ◽  
Large Capacity ◽  
Safety Critical ◽  
Oil Storage ◽  
Oil Storage Tank ◽  
Detailed Assessment ◽  
Oil Company

Abstract Crude storage tanks are an important asset in every oil company. Having adequate storage capacities is important economically and ensure steady supply of oil in the market. Hence, taking a huge tank out of service for refurbishment is technically and safety critical, and as much as putting it back into service on time. This paper presents an advanced methodology and assessment of tank refurbishment process of large capacity Crude Storage Tanks, in compliance with the International Codes and Standards resulting in optimization of the project schedule by approximately 40% as compared to conventional methodology of refurbishment. By deploying the advance techniques, detailed assessment, and dynamic planning we have been able to accelerate the completion of the project, improve tank availability time without compromising with the Integrity and HSE.

scholarly journals Modeling the Consequence of Vinyl Chloride Accidental Release from Tanks in a Petrochemical Plant

2021 ◽  
Author(s):  
Mohammad Javad JAFARI ◽  
Rahman BAHMANI ◽  
Mostafa POYAKIAN ◽  
Yaser KHORSHIDI BEHZADI ◽  
Soheila KHODAKRIM
Keyword(s):  
Risk Assessment ◽  
Vinyl Chloride ◽  
Risk Process ◽  
Assessment Method ◽  
Quantitative Risk Assessment ◽  
Petrochemical Plant ◽  
Storage Tanks ◽  
Risk Assessment Method ◽  
Operational Variables ◽  
Death Probability

Introduction: Each year, many accidents occur in processing industries such as oil, gas, and petrochemicals. Processing industries mostly work with hazardous chemicals and units in high temperature and high-pressure conditions like reactors and storage tanks. The study aimed to model the consequences of a complete tank rapture (explosion and fire) and specify the intensity caused by the events. Materials and methods: The applied method in this study was based on the Quantitative Risk Assessment method. This method is used for risk assessment in chemical, petroleum, gas, and petrochemical processes and transport industries. Initially, the process associated with the monomer vinyl-chloride storage tank was identified. At the next stage, the scenarios and probable hazards were identified and defined and the PHAST Risk 7.11 was run for modeling the consequences. Results: The most dangerous consequences of vinyl-chloride storage tanks include sudden fire and explosion in a complete tank rapture. In a full tank-explosion, the radiation of the explosion wave was once recorded as 79 meters with the death probability of 99 percent. Conclusion: Each explosion or probable rapture in monomer vinyl-chloride tanks may cause terrible consequences. The vinyl-chloride monomer storage process is a high-risk process that is not tolerable. To reduce the risk, the consequence intensity, the consequence probability, and the exposure amount should be reduced. To this end, it is highly recommended to use smaller tanks, modify operational variables (capacity, pressure, temperature, etc.), and reduce the level of exposure in similar projects.

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