scholarly journals In-service Piping Inspection Work-aid Tool for Oil & Gas Industries

2021 ◽  
Vol 1 (1) ◽  
pp. 12
Author(s):  
HANIDA ABDUL AZIZ ◽  
Lee Jia Chien ◽  
Hairunnisa Osman ◽  
Tan Lian See ◽  
Norhuda Abdul Manaf
Keyword(s):  
Oil And Gas ◽  
Secondary Data ◽  
Piping System ◽  
System Usability Scale ◽  
Piping Systems ◽  
Inspection Process ◽  
Inspection Work ◽  
Oil Gas ◽  
Service Inspection

Piping systems are important in the oil and gas plant’s operation, but continuous damage is harming the piping system due to extensive usage resulting in the increase of accident cases. API 570 Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems has proposed an in-service piping inspection practice to ensure the in-service piping is functionable by identifying the remaining life of the piping system. However, the in-service piping inspection process is numerous and complicated where certain steps may be skipped, and data collected may lost along the process. The in-service piping inspection framework followed by a work-aid tool is developed in this study based on API 570 to guide the user the piping inspection process along with providing a depository database for document storage. Validation test is conducted by collecting feedback from professional piping engineer using System Usability Scale followed by conducting a case study using secondary data and sample attachment to test the functionality of the work-aid tool. The work-aid tool can guide the piping inspection process and provide a systematic documentation method for corresponding inspection documents. Case study in the industry is recommended to test the usability of the tool in the industry.

Estimation of Bending Stresses in Piping Systems Subjected to Transient Pressure

2020 ◽  
Author(s):  
Maral Taghva ◽  
Lars Damkilde
Keyword(s):  
Dynamic Analysis ◽  
Static Analysis ◽  
Structural Integrity ◽  
Oil And Gas ◽  
Real Life ◽  
Piping System ◽  
Transient Pressure ◽  
Operational Conditions ◽  
Piping Systems ◽  
Bending Stresses

Abstract Modifications in aged process plants may subject piping systems to fluid transient scenarios, which are not considered in the primary design calculations. Due to lack of strict requirements in ASME B31.3 the effect of this phenomenon is often excluded from piping structural integrity reassessments. Therefore, the consequences, such as severe pipe motion or even rupture failure, are discovered after modifications are completed and the system starts to function under new operational conditions. The motivation for this study emanated from several observations in offshore oil and gas piping systems, yet the results could be utilized in structural integrity assessments of any piping system subjected to pressure waves. This paper describes how to provide an approximate solution to determine maximum bending stresses in piping structures subjected to wave impulse loads without using rigorous approaches to calculate the dynamic response. This paper proposes to consider the effect of load duration in quasi-static analysis to achieve more credible results. The proposed method recommends application of lower dynamic load factors than commonly practiced values advised by design codes, for short duration loads such as shock waves. By presenting a real-life example, the results of improved and commonly practiced quasi-static analysis are compared with the site observations as well as dynamic analysis results. It is illustrated that modified quasi-static solution shows agreement with both dynamic analysis and physical behavior of the system. The contents of this study are particularly useful in structural strength re-assessments where the practicing engineer is interested in an approximated solution indicating if the design criteria is satisfied.

Performance-Based Analysis of Coupled Support Structures and Piping Systems Subject to Seismic Loading

2015 ◽  
Author(s):  
Oreste S. Bursi ◽  
Fabrizio Paolacci ◽  
Md Shahin Reza
Keyword(s):  
Seismic Design ◽  
Seismic Analysis ◽  
Design Method ◽  
Design Guidelines ◽  
Piping System ◽  
Support Structures ◽  
Limit States ◽  
Piping Systems ◽  
Allowable Stress Design

The prevailing lack of proper and uniform seismic design guidelines for piping systems impels designers to follow standards conceived for other structures, such as buildings. The modern performance-based design approach is yet to be widely adopted for piping systems, while the allowable stress design method is still the customary practice. This paper presents a performance-based seismic analysis of petrochemical piping systems coupled with support structures through a case study. We start with a concept of performance-based analysis, followed by establishing a link between limit states and earthquake levels, exemplifying Eurocode and Italian prescriptions. A brief critical review on seismic design criteria of piping, including interactions between piping and support, is offered thereafter. Finally, to illustrate actual applications of the performance-based analysis, non-linear analyses on a realistic petrochemical piping system is performed to assess its seismic performance.

scholarly journals Analisis Neraca Perdagangan Terhadap Cadangan Devisa di Indonesia (1975-2016)

2019 ◽  
Vol 24 (2) ◽  
pp. 304
Author(s):  
Khalwat Asyaria, Risanda A. Budiantoro, Sri Herianingrum
Keyword(s):  
Quantitative Analysis ◽  
Foreign Exchange ◽  
World Bank ◽  
Oil And Gas ◽  
Secondary Data ◽  
Foreign Exchange Reserves ◽  
Regression Test ◽  
Oil Exports ◽  
Negative Effect ◽  
Oil Gas

Foreign exchange reserves are assets of a central bank that are stored in foreign currencies such as dollars, euros, yen and are used for international trade and funding the country's economy. The size of the country's foreign exchange reserves depends on the strength of its exports and imports both oil and gas and non-oil and gas. Regarding the purpose of this study to analyze the allocation of oil and gas and non-oil gas trade to the volatility of foreign exchange reserves in Indonesia, 1975-2016. This study used secondary data from the Badan Pusat Statistik and World Bank reports using quantitative analysis (multiple linear regression test). The results of the study show that non-oil exports and imports have a significant negative effect on the volatility of foreign exchange reserves. While for oil and gas exports and imports it has a negative and insignificant effect.

A Case Study of a Proposed Monitor for Industrial Process Fouling

1996 ◽  
Vol 118 (3) ◽  
pp. 308-314
Author(s):  
B. R. Becker ◽  
B. A. Fricke
Keyword(s):  
Industrial Process ◽  
Piping System ◽  
Chemical Processing ◽  
Complete Replacement ◽  
Process Plant ◽  
Process Piping ◽  
Piping Systems ◽  
Useful Life ◽  
Insight Into

Fouling of a piping system refers to the formation of deposits on pipe walls, which can severely impede fluid flow. The food, dairy, and chemical processing industries usually combat the fouling of piping systems through extensive cleaning or complete replacement of the systems, usually on an emergency basis. This paper describes the development of a model which permits real time monitoring of the overall fouling in a piping system and provides insight into the behavior and response trends of piping system fouling to changes in process operating parameters. It facilitates the prediction of both the rate of fouling and the useful life of the piping system, thereby avoiding emergency shutdowns. This paper also describes the implementation of the model in an existing industrial process plant where it was found to accurately monitor actual fouling behavior. The results of the model demonstrate the influence of Reynolds number upon the fouling of this industrial process piping system. This paper also presents a summary of previous fouling research.

Dealing With Heavy Loads in Large Diameter Piping

2012 ◽  
Author(s):  
Hector Rojas ◽  
Andrey Gutkovsky
Keyword(s):  
Large Diameter ◽  
Operating Conditions ◽  
Configuration Design ◽  
Piping System ◽  
Flow Conditions ◽  
Element Analysis ◽  
Piping Systems ◽  
Molten Sulfur ◽  
Heavy Loads

It is common in a refinery that some piping systems have to handle several flow conditions. However, when a new proposed condition implies the filling of an existing 68″ (1727 mm) line with molten Sulfur, which was initially designed for gas operation, a well thought engineering case study is required to guarantee that no damage will occur under the new operating conditions. This paper covers the procedures employed to qualify the integrity of a 68″ (1727 mm) piping system, initially designed to carry Sulfur vapors and required to handle occasional filling with molten Sulfur due to operational demands. The procedures of reviewing the initial configuration, design of modifications and reinforcements to the piping system and the use of Finite Element Analysis (FEA) in order to qualify several unique support configurations are explained in this paper.

Case Study of Pipe Support and Restraint Stiffness

2019 ◽  
Author(s):  
Phillip Wiseman ◽  
Alex Mayes ◽  
Emmanuel Appiah
Keyword(s):  
Steel Structure ◽  
Piping System ◽  
Building Structure ◽  
Process Industries ◽  
Thermal Growth ◽  
Piping Systems ◽  
Industry Practice ◽  
Valve Operation ◽  
Compare And Contrast

Abstract Pipe support and restraint assemblies are an integral part of engineered piping systems for power, petrochemical, refinery, and process industries. Such assemblies are specially designed and analyzed for the purpose of transferring loads from piping to building structure or supplemental steel structure. Thus, a support assembly protects the piping, or any other components, from damage that may result from startup, shutdown, shocks from valve operation, water hammer, steam hammer, wind, seismic, and other catastrophic events such as pipe rupture or explosions. It also restrains against unacceptable movements in the piping system while preserving movement due to thermal growth. The support and restraint stiffness values are utilized based on assumptions and calculations of load versus displacement. A case study of pipe support elements is performed in various static and dynamic load cases to determine the effects of assumptions of utilizing one stiffness value versus multiple stiffness values within an assembly. Additionally, the stiffness for the connected building structure opens more assumptions within industry practice. Multiple industry practices of stiffness values are integrated into this research to compare and contrast the realistic attributes of each.

scholarly journals High Vibration Problem in Compressor Piping Systems: A Case Study

1997 ◽  
Author(s):  
G. Vijaya Kumar ◽  
S. Raghava Chary ◽  
A. Rajamani
Keyword(s):  
Natural Frequencies ◽  
Excitation Frequency ◽  
Mode Shapes ◽  
Piping System ◽  
Mechanical Responses ◽  
Normal Limits ◽  
Piping Systems ◽  
Vibration Problems ◽  
Excitation Frequencies

High vibration problems resulting in damage to supports, instrument stubs etc. have been experienced in many compressor piping systems installed at different fertilizer plants. Investigations aimed at a solution to the problem included vibration measurements on the suction and discharge piping, and mathematical modeling of the piping. The measurements indicated presence of an excitation frequency in the range of 30–35% of the compressor running speed. Dynamic analysis of the piping system showed the presence of natural frequencies coinciding with or very near to the excitation frequencies. This has been further confirmed by impact tests. Analytical mode shapes clearly show that the antinodes match with high vibration zones observed at the site. The mathematical models were used to determine optimum configurations which would separate mechanical responses from excitation frequencies. These modifications have been implemented at site and the piping vibrations are within normal limits.

scholarly journals Competitive Strategies in Green Business - A Case Study on Aegis Logistics Ltd

2018 ◽  
pp. 1-17
Author(s):  
Madhushree L. M. ◽  
Revathi R. ◽  
P. S. Aithal
Keyword(s):  
Oil And Gas ◽  
Stock Exchange ◽  
Operating Cost ◽  
Competitive Strategies ◽  
Private Companies ◽  
Product Packaging ◽  
Logistics Industry ◽  
Green Business ◽  
Oil Gas

Aegis Logistics Limited was incorporated in 1956 and its shares have been listed on theBombay Stock Exchange since 1978 and traded on the National Stock Exchange. AegisGroup plays a key role in India’s downstream oil and gas sector, and its flagship company,Aegis Logistic Limited, is India’s leading oil, gas, and chemical logistics company.Competition is a basic issue for every organization. Logistic companies also facing the samepressure of competition. In order to deal with the challenging business atmosphere, allprivate organizations seek new ways of business development. For logistic companies,environmental issues are highly important. Therefore, green policies have become a strategyfor them. Competitive levels of private companies may be affected by green policies as aresult of regulations regarding environmental concerns. Logistics may improve efficiencyand effectiveness such as using reusable containers and boxes instead of the paper cartonmay reduce waste and optimize product packaging; building a green warehouse lead toreduce the overall operating cost while using the hybrid engine in trucks may reduce carbonemissions and consume less gas. In today’s highly competitive environment, green logisticsissues are gaining high attention. Since it is an important part of supply chain managementand plays an important role in the improvement of a transport system. Logistics facilitates ingetting products and services as and when they are needed and desired to the customer. Itserves as a major enabler of the growth of trade and commerce in an economy because it ishelpful in economic transactions. In this paper, we studied and analysed the competitivestrategies followed in the green business Logistics industry and how it affects the greenbusiness environment of the company by considering the case of Aegis Logistics Limited.

scholarly journals Collaboration and Its Distortion in Managing Migas’ CSR Programs: A Case Study on the CSEL’s Community Empowerment Program in the Salas Village, Bula Sub-District, Eastern Part Seram Regency, Maluku Province, Indonesia

2020 ◽  
Vol 2 (3) ◽  
pp. 340-355
Author(s):  
Josep Antonius Ufi ◽  
Zainal Abidin Rengifurwarin ◽  
Jusuf Madubun
Keyword(s):  
Oil And Gas ◽  
Group Discussion ◽  
Secondary Data ◽  
Community Empowerment ◽  
Host Community ◽  
Primary Data ◽  
Collaborative Management ◽  
Determinant Factors ◽  
Depth Interview

This study aims to analyse the collaboration form of, and critically discuss the determinant factors of collaboration those are more significantly distorted, in the governance of CSEL’s CSR program on agriculture-based economic empowerment for communities in the Salas village of Bula Sub-District, Eastern Part of Seram Regency in Maluku Indonesia. The collaboration form, the determinant factors of collaboration and their distortion as the main focuses were employed in a qualitative case study. Primary data was collected by using an in-depth interview and Focus Group Discussion. There are 9 key informants. Secondary data was collected by using documentary study on relevant documents (CSR rule & regulation, CSR Reports, etc.). The CSEL’s collaborative CSR program was a type of formal collaboration that was significantly distorted. The stakeholder, communication and also collaboration resources were among the determinant factors which were significantly distorted in the governance of the CSEL’s collaborative CSR program, and therefore it failed for empowering the economy of the host community in the Salas Village. The findings of this study are useful to understand the specific formal collaborative management of CSR in Indonesian oil and gas sectors which were distorted in the CSEL’s collaborative CSR program case; particularly, these findings show the challenges the oil & gas sectors face in managing their collaborative CSR programs by improving the determinant factors of collaboration. This study adapts not only the concept of collaboration form, but also the well-known determinant factors of collaboration into a unique and specific case of CSEL’s formalized collaborative CSR program within the Indonesian oil & gas sectors context that was significantly distorted in practice if compared to other CSR programs of CSEL and others.

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