Examples of Diagnosis on a Petroleum Products Storage Tank According to the DT 92 Method

2017 ◽  
pp. 251-260
Keyword(s):  
Storage Tank ◽  
Petroleum Products

Integrity of Old Pipelines Buried in Petroleum Products Storage Terminals

2008 ◽  
Author(s):  
Mauro Y. Fujikawa ◽  
Eduardo O. de A. Silva ◽  
Reinaldo A. das Neves ◽  
Derci Donizeti Massitelli ◽  
Newton Orlando Abraha˜o ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Storage Tank ◽  
High Viscosity ◽  
Petroleum Products ◽  
The Other ◽  
Fuel Oil ◽  
Marine Fuel ◽  
Analysis Study ◽  
Theoretical Results

This work aims to present the results obtained from the experience gained through the accomplishment of the inspection with the ultrasonic umbilical pig in a non-piggable internal pipe buried in the Transpetro Storage Terminal in Sa˜o Caetano do Sul, in Sa˜o Paulo, Brazil. The pipeline considered in this work is a line for marine fuel oil, which, because of its high viscosity, must be heated in order to flow. The oil is heated in the terminal by the steam produced in boilers. The heat transfer may occur in a heat exchanger or inside the storage tank, and the pipeline referred is thermally isolated. So that the line could be inspected, it was divided in two parts, one upstream of the pumps (suction), which is a 12-inch line, and the other downstream of the same pumps (discharge), which is a 14-inch line. This work has been developed by Transpetro’s Pipeline Operation, Maintenance, Inspection and Safety Departments together, since the planning phase, passing by the job execution and getting to the conclusion. To begin with, the operational liberation of the line had to be agreed between all the departments involved with the PIG inspection, which were mentioned before, and Transpetro’s Logistics Department. Once the PIG passage was scheduled, an initial cleaning had to be performed by the Operation Activity. Since this line is non-piggable, the installation of adaptations was necessary. After that, the passage of cleaning PIGs was possible, and the line sections could be enabled. The next step was the inspection of the pipeline with umbilical ultrasonic PIGs. After the passage of these PIGs, the adaptations had to be removed and the pipeline had to be conditioned for the operational return. After this part of the inspection was finished, the verification of the results issued was necessary. Once the theoretical results were available, ditches were opened for correlation inspection and temporary repairs in the most critical points for the operation were applied. The last part of the work consists in an analysis study of technical and economical viability for rehabilitation of the lines.

Digital Transformation of Storage Tank Chart For PMS and AGO

2021 ◽  
Author(s):  
Emmanuel Ayodele ◽  
Ndubuisi Chukuigwe ◽  
Oshogwe Akpogomeh ◽  
Ibrahim Bilal
Keyword(s):  
Storage Tank ◽  
Integration Method ◽  
Cost Effective ◽  
Petroleum Products ◽  
Percentage Error ◽  
Human Errors ◽  
Computational Errors ◽  
Effective Use ◽  
Fast Dynamic ◽  
Process Calculation

Abstract Petroleum product needs to be stored and transported from various sources before they get to the final consumers, there by requiring storage tanks. Calibration of storage tank by dry and wet strapping process have evolved over the years with state-of-the-art facilities. The calibration charts are used to determine and know the volume of fluid in a tank given the height of the petroleum products stored in the tank. Calculating volume of a tank with the integration method has a lot of sources of error thereby affecting the result of the volume calculated and causing losses in revenue due to inaccurate calibrated tanks. With the losses in revenue due to wrong computations or computational errors, a fast, dynamic and cost-effective solutions become imperative to solve these computation problems. The tank charts having been delivered for daily usage and fiscalization process after the tank strapping process, calculation errors need to be minimized in order to report accurately petroleum products in stocks, which is a function of temperature, density and volume correction factor. This paper aims to solve the problem by semi automating the process of calculating total volume of product in stock with error free results. Approach in this paper was used and test run for a storage facility X. This paper shows how calculations from calibrated tanks can be done with a virtual method using excel spreadsheet and converted into a software for effective use and making percentage error almost zero. The results obtained from this method of computation were error free and devoid of human errors.

scholarly journals THE RESEARCH OF FIRE RESISTANCE LIMIT OF THE TANK STORAGE OF PETROLEUM PRODUCTS

Fire Safety ◽  
2021 ◽  
Vol 37 ◽  
pp. 37-43
Author(s):  
E. Нulida ◽  
Ya. Kozak ◽  
M. Vasiliev
Keyword(s):  
Fire Resistance ◽  
Storage Tank ◽  
Block Diagram ◽  
Sheet Material ◽  
Sheet Steel ◽  
Petroleum Products ◽  
Diffusion Combustion ◽  
Tank Wall ◽  
Critical Temperatures ◽  
Research Results

Introduction. Statistical analysis of fires at storage, refining and transportation facilities for oil and petroleum products over the past 20 years shows that out of 200 fires, 92% of them occur in land tanks. In a fire, liquid combustion in the tank is a diffusion combustion of a jet of steam in the air. In the process of burning the liquid in the tank changes the mechanical properties of its metal wall, which affects its fire resistance duration. In the event of a fire in the tank, the drywall may be destroyed. Destruction of dry tank wall can lead to oil spills and cascading fire. Therefore, the main problem is to determine the fire duration before the destruction of the dry wall of the tank, i.e. its fire resistance.Purpose. Develop a method for determining the fire resistance of the dry wall of the storage tank of oil and petroleum products.Methods. To develop a method for determining the fire resistance of storage tank dry wall of oil and petroleum prod-ucts, it is necessary to solve the following problems:1) to determine the temperature effect on sheet material of tank dry wall on its strength;2) to obtain the dependence for determining the duration of time before the occurrence of ultimate destructive stresses of the sheet material of tank dry wall;3) to obtain the dependence for determining the time of fire resistance of tank dry wall of oil and petroleum products in the event of a fire.To solve the first problem, the temperature influence of the sheet steel used to make the tank wall on the yield strength σT was established.To solve the second problem, a dependence was obtained to determine the length of time before the occurrence of critical temperatures at which the destruction of the sheet material of tank dry wall is possible.To solve the third problem, a block diagram of the algorithm for determining the fire resistance of tank dry wall in case of fire was developed, on the basis of which a package of applications was developed.Conclusions and specific suggestions:1. The influence of the temperature of the sheet material of tank dry wall on its strength is established. The research results showed that the temperature of the tank drywall material in the range of 690-710 ºC is critical and it can lead to its destruction.2. The results of the research allowed to obtain the dependence for determining the duration of time to critical temper-atures occurrence at which the destruction of the sheet material of tank dry wall. The results of calculations for the tank RVS-5000 showed that its fire resistance varies within τv = 13…15 minutes. Of course, this value of fire resistance for tank dry wall is very small in terms of the fire extinguishing process. Therefore, it is necessary to develop and implement certain measures to increase the fire resistance of tank dry wall.3. To determine the time of fire resistance of tank dry wall storage of oil and petroleum products in the event of a fire was obtained dependence, which allows to determine the temperature T in ºC from the duration of burning the tank τ per minute, the height of the dry wall h0 in m upper edge. The research results allowed to develop a block diagram of the algorithm for solving this problem, as well as a package of applications based on it, which are written in the C # programming language.

scholarly journals Evaporation flow assessment from petroleum product storage tanks exposed to fire conditions

2018 ◽  
Vol 73 ◽  
pp. 27 ◽  
Author(s):  
S. Ginestet ◽  
C. Le Bot
Keyword(s):  
Petroleum Product ◽  
Storage Tank ◽  
Numerical Approach ◽  
Petroleum Products ◽  
Storage Device ◽  
Storage Tanks ◽  
Exact Answer ◽  
Simplified Method ◽  
Product Storage

Fire around storage tanks for petroleum products can have disastrous consequences for the environment and the population. These fires, due to accident or arson, are very well managed by security divisions but, nevertheless, involve the release of an amount of vapour from the petroleum present in the storage device. The exposure of a non-refrigerated aboveground liquid petroleum or petroleum product storage tank to fire can also lead to internal overpressure. PV-valves ensure that the normal and emergency venting requirements are satisfied, and determination of such requirements is key for the safety of petroleum tanks and should not be underestimated. This paper presents and discusses some methods that can be used to evaluate the vapour flow. In the aim of finding an exact answer rapidly, a thermal analytical approach is first investigated, which reveals the complexity of the solution. Thus, a numerical approach, based on finite-volume description, is used to set the first steps of the flow assessment. Based on a thermodynamic hypothesis, a simplified method is finally put forward for the evaluation of the amount of vapour released. The algorithm used to determine how temperature, pressure and flow evolve over time, which is very useful information for the safety of these devices, is then detailed and the results discussed.

scholarly journals Implementation of Condition Equation Model in Geodetic Observation: A Case Study of Circular Reservoir Structure

2019 ◽  
Vol 3 (2) ◽  
pp. 233-244
Author(s):  
Olushola Oladosu ◽  
S. E. Okonofua ◽  
R. Ehigiator-Irughe
Keyword(s):  
Storage Tank ◽  
Field Data ◽  
Petroleum Products ◽  
Equation Model ◽  
Equation Method ◽  
Structural Modelling ◽  
Condition Equation ◽  
Engineering Projects ◽  
Geodetic Surveying

In engineering projects involving the construction of aboveground storage tank big enough to retain and/or accommodate large quantities of petroleum products such as crude oil and condensate, mathematical reduction of obtained field data using condition equation method is always appropriate for an onward monitoring of those structures. This paper demonstrates how condition equation method can be used to adjust geodetic surveying measurements in relation to aboveground storage tank. Accuracy is in the order of σa = 5.66e-4 and σb = 1.113e-3 while σsmax and σsmin are 0.0522 and -0.0511 respectively. The results obtained revealed that the method can be satisfactorily implemented for aboveground circular reservoir storage tank structural modelling and monitoring for a similar scenario.

Equipment dentifying Vapor Leakages and Recovery of Petroleum Product Vapor When Stored

2020 ◽  
Vol 05 ◽  
pp. 60-64
Author(s):  
Y.N. Rybakov ◽  
◽  
V.E. Danilov ◽  
I.V. Danilov ◽  
◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Environmental Protection ◽  
Petroleum Product ◽  
Petroleum Products ◽  
Oil Products ◽  
Carnot Cycle ◽  
Oil Supply ◽  
Gas Stations ◽  
Environmental Situation ◽  
Vapor Absorption

The problem of losses of oil products from leaks during their storage and transportation at oil supply facilities is considered. The influence of oil product leaks on the environmental situation around oil depots and gas stations is shown. A detailed overview of existing methods and tools for detecting leaks of petroleum products from storage facilities is presented. The evaluation of their effectiveness. Two methods for detecting oil leaks and devices based on them are proposed. The first device monitors the movement of liquid in the tank, the second-detects petroleum products in wastewater. The problem of recovery of petroleum vapors and environmental pollution from the release of vapors of light fractions into the atmosphere is also considered. An overview of existing methods and means of recovery of petroleum vapors is presented. Two methods and devices for capturing oil vapors and returning them to the reservoir are proposed, based on different principles: vapor absorption in the cooled oil product and vapor recovery on the principle of the Carnot cycle. It is shown that these devices can provide effective detection of oil leaks and recovery of their vapors, as well as improve the effectiveness of environmental protection at modern gas stations and tank farms.

To the issue of water treatment by hydrocyclone on the systems of the combined irrigation

2020 ◽  
Vol 0 (2) ◽  
pp. 21-25
Author(s):  
Nikolay Dubenok ◽  
Andrey Novikov ◽  
Sergei Borodychev ◽  
Maria Lamskova
Keyword(s):  
Water Treatment ◽  
Organic Compounds ◽  
Irrigation Water ◽  
Irrigation System ◽  
Petroleum Products ◽  
Cylindrical Part ◽  
Agricultural Landscapes ◽  
Treatment Unit ◽  
Drain Pipe ◽  
Irrigation Network

At the stage of water treatment for irrigation systems, the efficiency capture coarse and fine mechanical impurities, as well as oil products and organic compounds affects the reliability of the equipment of the irrigation network and the safety of energy exchange processes in irrigated agricultural landscapes. The violation of work irrigation system can cause disruptions in irrigation schedules of agricultural crops, crop shortages, degradation phenomena on the soil and ecological tension. For the combined irrigation system, a water treatment unit has been developed, representing a hydrocyclone apparatus with a pipe filter in the case. For the capacity of 250 m3/h the main geometrical dimensions of hydrocyclone have been calculated. To organize the capture petroleum products and organic compounds, it has been proposed a modernization of a hydrocyclone unit, consisting in dividing the cylindrical part of the apparatus into two section. The first is section is for input irrigation water, the second one is for additional drainage of clarified irrigation water after sorption purification by the filter, placed on the disk and installed coaxially with the drain pipe and the pipe filter.

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