Major Advancement in Pipeline Integrity Management Through an Integrated Quantitative Risk Assessment Approach

2016 ◽  
Author(s):  
A. Azouz ◽  
M. Abdel Hakim ◽  
Y. Soliman ◽  
H. Awda
Keyword(s):  
Risk Assessment ◽  
Quantitative Risk Assessment ◽  
Assessment Approach ◽  
Integrity Management

scholarly journals Domain-specific risk assessment using integrated simulation: A case study of an onshore wind project

2021 ◽  
Author(s):  
Emad Mohamed ◽  
Nima Gerami Seresht ◽  
Stephen Hague ◽  
Adam Chehouri ◽  
Simaan M. AbouRizk
Keyword(s):  
Risk Assessment ◽  
Wind Farm ◽  
Critical Path ◽  
Quantitative Risk Assessment ◽  
Integrated Simulation ◽  
Domain Specific ◽  
Risk Assessment Models ◽  
First Case ◽  
Assessment Approach

Although many quantitative risk assessment models have been proposed in literature, their use in construction practice remain limited due to a lack of domain-specific models, tools, and application examples. This is especially true in wind farm construction, where the state-of-the-art integrated Monte Carlo simulation and critical path method (MCS-CPM) risk assessment approach has yet to be demonstrated. The present case study is the first reported application of the MCS-CPM method for risk assessment in wind farm construction and is the first case study to consider correlations between cost and schedule impacts of risk factors using copulas. MCS-CPM provided reasonable risk assessment results for a wind farm project, and its use in practice is recommended. Aimed at facilitating the practical application of quantitative risk assessment methods, this case study provides a much-needed analytical generalization of MCS-CPM, offering application examples, discussion of expected results, and recommendations to wind farm construction practitioners.

Deterministic QRA Model and Implementation Experience via an Integrity Management Software Tool

2010 ◽  
Author(s):  
Jane Dawson ◽  
Iain Colquhoun ◽  
Inessa Yablonskikh ◽  
Russell Wenz ◽  
Tuan Nguyen
Keyword(s):  
Risk Assessment ◽  
Geographical Information Systems ◽  
Risk Model ◽  
Software Tool ◽  
Data Availability ◽  
Quantitative Risk Assessment ◽  
Geographical Information ◽  
Failure Rates ◽  
Assessment Practice ◽  
Integrity Management

Current risk assessment practice in pipeline integrity management tends to use semi-quantitative index-based or model-based methodologies. This approach has been found to be very flexible and provide useful results for identifying high-risk areas and for prioritizing physical integrity assessments. However, as pipeline operators progressively adopt an operating strategy of continual risk reduction with a view to minimizing total expenditures within safety, environmental, and reliability constraints, the need for quantitative assessments of risk levels is becoming evident. Whereas reliability-based quantitative risk assessments can be and are routinely carried out on a site-specific basis, they require significant amounts of quantitative data for the results to be meaningful. This need for detailed and reliable data tends to make these methods unwieldy for system-wide risk assessment applications. This paper describes methods for estimating risk quantitatively through the calibration of semi-quantitative estimates to failure rates for peer pipeline systems. By applying point value probabilities to the failure rates, deterministic quantitative risk assessment (QRA) provide greater rigor and objectivity than can usually be achieved through the implementation of semi-quantitative risk assessment results. The method permits a fully quantitative approach to suit the operator’s data availability and quality, and analysis needs. The paper also discusses experiences of implementing this type of risk model in Pipeline Integrity Management System (PIMS) software and the use of and integration of data via existing pipeline geographical information systems (GIS).

Semi-Quantitative Risk Assessment Matrix for Rotating Equipment

2013 ◽  
Vol 845 ◽  
pp. 647-651
Author(s):  
Mohd Amin bin Abd Majid ◽  
Rano Khan Wassan ◽  
Ainul Akmar Mokhtar
Keyword(s):  
Risk Assessment ◽  
Failure Modes ◽  
Oil And Gas ◽  
Guide Vane ◽  
Quantitative Risk Assessment ◽  
Inlet Guide Vane ◽  
Risk Matrix ◽  
Assessment Approach ◽  
Rotating Equipment ◽  
Blade Failure

In petrochemical, power generation, oil and gas industries and in variety of other sectors rotating equipments are in use to fulfill production requirements. Failure of rotating equipment, especially in such industries can result to risk related issues. A well implemented rotating equipment risk assessment strategy is most needed to achieve desired plant availability and efficiency. In this research semi-quantitative risk assessment approach is proposed to evaluate the risk of rotating equipment and categorize their associated failure risks. Borda ranking is adopted to evaluate the risk in order to minimize risk ties which exist in risk matrix. Compressor is taken as case study to show the applicability of the proposed method for rotating equipment. It was observed that risks of selected failure modes of gas turbine compressor fall in the categories of serious and medium levels based on risk matrix. Rotor bend distortion, blade failure or inlet guide vane failures needed more attention for treatment based on Borda ranking.

Attribution of Human VTEC O157 Infection from Meat Products: A Quantitative Risk Assessment Approach

Risk Analysis ◽  
2010 ◽  
Vol 30 (5) ◽  
pp. 753-765 ◽  
Author(s):  
Rowena D. Kosmider ◽  
Pádraig Nally ◽  
Robin R. L. Simons ◽  
Adam Brouwer ◽  
Susan Cheung ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Meat Products ◽  
Quantitative Risk Assessment ◽  
Assessment Approach

scholarly journals A risk assessment of Pseudomonas aeruginosa in swimming pools: a review

2012 ◽  
Vol 10 (2) ◽  
pp. 181-196 ◽  
Author(s):  
Scott A. Rice ◽  
Ben van den Akker ◽  
Francesco Pomati ◽  
David Roser
Keyword(s):  
Risk Assessment ◽  
Pseudomonas Aeruginosa ◽  
Management Strategies ◽  
Opportunistic Pathogen ◽  
Quantitative Risk Assessment ◽  
Swimming Pools ◽  
Critical Knowledge ◽  
Risk Management Strategies ◽  
Assessment Approach ◽  
Significant Public Health

Despite routine monitoring and disinfection, treated swimming pools are frequently contaminated with the opportunistic pathogen Pseudomonas aeruginosa, which can represent a significant public health threat. This review was undertaken to identify the current understanding of risk factors associated with pool operation with respect to P. aeruginosa. The ecology and factors that promote growth of P. aeruginosa in the pool environment are complex and dynamic and so we applied a systematic risk assessment approach to integrate existing data, with the aim to improve pool management and safety. Sources of P. aeruginosa, types of infections, dose responses, routes of transmission, as well as the efficacy of current disinfectant treatments were reviewed. This review also highlights the critical knowledge gaps that are required for a more robust, quantitative risk assessment of P. aeruginosa. Quantitative risk management strategies have been successfully applied to drinking water systems and should similarly be amenable to developing a better understanding of the risk posed by P. aeruginosa in swimming pools.

scholarly journals A quantitative risk assessment approach for mosquito-borne diseases: malaria re-emergence in southern France

2008 ◽  
Vol 7 (1) ◽  
pp. 147 ◽  
Author(s):  
Nicolas Ponçon ◽  
Annelise Tran ◽  
Céline Toty ◽  
Adrian JF Luty ◽  
Didier Fontenille
Keyword(s):  
Risk Assessment ◽  
Quantitative Risk Assessment ◽  
Southern France ◽  
Assessment Approach

A New Risk Assessment Model to Check Safety Threats to Long-Distance Pipelines

2021 ◽  
Author(s):  
Duhui Lu ◽  
Guangpei Cong ◽  
Bing Li
Keyword(s):  
Risk Assessment ◽  
Protective Layer ◽  
Assessment Model ◽  
Quantitative Risk Assessment ◽  
Risk Assessment Model ◽  
Long Distance ◽  
Proposed Model ◽  
Integrity Management ◽  
Current Assessment ◽  
Inspection Data

Abstract With the number of long-distance pipelines increasing in China, risk management has become important for controlling pipeline leakage. However, all the current assessment technologies are semi-quantitative and do not include inspection data. To address this problem, a new quantitative risk assessment model is proposed to guide decision-making on excavation inspection and maintenance. Based on previous failure cases, the model includes data about the surrounding soils as well as about the pipeline's protective layer, cathodic protection and thickness readings. Testing of the proposed model on previous failure cases shows that the new model can correctly assess the real leakage risk of a long-distance pipeline and support the quantitative integrity management of a long-distance pipeline during its whole service life.

Predicted cancer risks induced by computed tomography examinations during childhood, by a quantitative risk assessment approach

2013 ◽  
Vol 53 (1) ◽  
pp. 39-54 ◽  
Author(s):  
Neige Journy ◽  
Sophie Ancelet ◽  
Jean-Luc Rehel ◽  
Myriam Mezzarobba ◽  
Bernard Aubert ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Risk Assessment ◽  
Quantitative Risk Assessment ◽  
Cancer Risks ◽  
Assessment Approach
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