The Experts below are selected from a list of 55638 Experts worldwide ranked by ideXlab platform
Michael Havbro Faber - One of the best experts on this subject based on the ideXlab platform.
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On information modeling in structural Integrity Management
Structural Health Monitoring, 2020Co-Authors: Kashif Ali, Jianjun Qin, Michael Havbro FaberAbstract:Value of information analyses in structural Integrity Management has gained significant interest over especially the last decade. The concept of value of information analysis provides a methodical ...
Shangzhi Zuo - One of the best experts on this subject based on the ideXlab platform.
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Development and Application of Pipeline Integrity Management System
2008 7th International Pipeline Conference Volume 1, 2008Co-Authors: Xiaolin Wang, Jian Shuai, Shangzhi ZuoAbstract:As an effect way to guarantee pipeline safety, pipeline Integrity Management (PIM) has been paid great attention in oil-gas pipeline industry. In this paper, a pipeline Integrity assessment and Management software (PIAMS) has been developed to make pipeline Integrity Management technique to be applied conveniently. PIAMS has been developed with four main modules: database Management (DM), anticorrosion system evaluation (ASE), corroded defects evaluation (CDE), and risk assessment (RA). In ASE module, classification evaluation is used to evaluate coating Integrity with holiday density, attenuation of inspection current and insulated resistivity coefficient, as well as cathodic protection efficiency with on/off potential in volts. In CDE module, three methods recommended respectively by ASME B31G-91, DNV RP-F101 and PCORRC are used to evaluate residual strength of corroded pipeline. Being the core of PIAMS, RA plays a crucial role in Integrity Management. According to significant characteristics, pipeline is sectioned into segments, each of which should be assessed with scoring system recommended by Pipeline Risk Management Manual. This paper describes the framework, database, functions and application of PIAMS.Copyright © 2008 by ASME
Mark Piazza - One of the best experts on this subject based on the ideXlab platform.
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Improved Pipeline Dent Integrity Management
Volume 1: Pipelines and Facilities Integrity, 2016Co-Authors: Sanjay Tiku, Amin Eshraghi, Vlad Semiga, Luis Torres, Mark PiazzaAbstract:Pipeline dents can be developed from the pipe resting on rock, a third party machinery strike, rock strikes during backfilling, amongst other causes. The long-term Integrity of a dented pipeline segment depends upon parameters including pipe geometry, indenter shape, dent depth, indenter support, secondary features, and pipeline operating pressure history at and following indentation. US DoT and other standards include dent repair and remediation criteria broadly based upon dent depth, dent location (top or bottom side), pressure cycling (liquid or gas), and dent interaction with secondary features (weld, corrosion, cracks). These criteria are simple and easily applied, however, they may not direct maintenance appropriately and be overly conservative or, in some cases, unconservative. Previous IPC papers have discussed the full-scale dent fatigue testing and dent modelling efforts to support Integrity Management criteria development by collecting material and structural response during dent formation and pressure loading. The present paper will present the results of this extensive dent structural and fatigue life numerical simulation program using a validated finite element (FE) analysis process. The paper describes the numerical simulation technique, as well as, the development of the novel engineering tool for Integrity Management, eliminating the need for numerical simulation of individual dent features to assess the relative Integrity threat they pose. The development of the engineering tool presented in this paper considers the dent formation, re-rounding and through life response to pressure fluctuations to evaluate the fatigue life of dent features. The results of these analyses are used to develop fatigue life trends based on dent shape, restraint condition and operating pressure. These trends were used to develop models to predict dent relative severity and life based upon ILI inspection dent shape data for single peak dents. Dent shape has also been used to determine the restraint condition of a dent and its influence on the dent feature fatigue life. The tools were developed to address many of the uncertainties inherent in existing regulatory repair and remediation criteria. Current and future applications of the Integrity assessment model are described along with recommendations for further development and testing to support pipeline Integrity Management, industry guidelines and standards. The results of this research will be of use in improving Integrity Management decisions and support further development of industry guides and standards. As such the information presented in this paper will be of interest to pipeline operators, Integrity Management specialists, in-line inspection (ILI) organizations and regulators. The recommendations presented in this paper may be used to influence the direction of pipeline standards in their direction in the disposition of dent features.
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Improved Pipeline Dent Integrity Management
Volume 1: Pipelines and Facilities Integrity, 2016Co-Authors: Sanjay Tiku, Amin Eshraghi, Vlad Semiga, Luis Torres, Mark PiazzaAbstract:Pipeline dents can be developed from the pipe resting on rock, a third party machinery strike, rock strikes during backfilling, amongst other causes. The long-term Integrity of a dented pipeline segment depends upon parameters including pipe geometry, indenter shape, dent depth, indenter support, secondary features, and pipeline operating pressure history at and following indentation. US DoT and other standards include dent repair and remediation criteria broadly based upon dent depth, dent location (top or bottom side), pressure cycling (liquid or gas), and dent interaction with secondary features (weld, corrosion, cracks). These criteria are simple and easily applied, however, they may not direct maintenance appropriately and be overly conservative or, in some cases, unconservative. Previous IPC papers have discussed the full-scale dent fatigue testing and dent modelling efforts to support Integrity Management criteria development by collecting material and structural response during dent formation and pressure loading. The present paper will present the results of this extensive dent structural and fatigue life numerical simulation program using a validated finite element (FE) analysis process. The paper describes the numerical simulation technique, as well as, the development of the novel engineering tool for Integrity Management, eliminating the need for numerical simulation of individual dent features to assess the relative Integrity threat they pose. The development of the engineering tool presented in this paper considers the dent formation, re-rounding and through life response to pressure fluctuations to evaluate the fatigue life of dent features. The results of these analyses are used to develop fatigue life trends based on dent shape, restraint condition and operating pressure. These trends were used to develop models to predict dent relative severity and life based upon ILI inspection dent shape data for single peak dents. Dent shape has also been used to determine the restraint condition of a dent and its influence on the dent feature fatigue life. The tools were developed to address many of the uncertainties inherent in existing regulatory repair and remediation criteria. Current and future applications of the Integrity assessment model are described along with recommendations for further development and testing to support pipeline Integrity Management, industry guidelines and standards. The results of this research will be of use in improving Integrity Management decisions and support further development of industry guides and standards. As such the information presented in this paper will be of interest to pipeline operators, Integrity Management specialists, in-line inspection (ILI) organizations and regulators. The recommendations presented in this paper may be used to influence the direction of pipeline standards in their direction in the disposition of dent features.
Kashif Ali - One of the best experts on this subject based on the ideXlab platform.
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On information modeling in structural Integrity Management
Structural Health Monitoring, 2020Co-Authors: Kashif Ali, Jianjun Qin, Michael Havbro FaberAbstract:Value of information analyses in structural Integrity Management has gained significant interest over especially the last decade. The concept of value of information analysis provides a methodical ...
A. Stacey - One of the best experts on this subject based on the ideXlab platform.
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Structural Integrity Management Framework for Mobile Installations
Volume 3: Materials Technology; Jan Vugts Symposium on Design Methodology of Offshore Structures; Jo Pinkster Symposium on Second Order Wave Drift For, 2011Co-Authors: A. Stacey, J. V. SharpAbstract:This paper presents a primary Integrity Management (PIM) framework for mobile installations (semi-submersibles and self elevating installations) and permanently moored floating installations (FPSOs, FSUs, etc.). The primary Integrity of self-elevating and floating installations depends on both the primary structure and additional systems. The framework is based upon the UK regulatory requirements for offshore installations, including the need for a thorough review of the safety case accounting for any changes in condition and future plans and verification of the primary Integrity Management (PIM) process. Requirements and guidance are provided for all aspects of the Integrity Management process covering: • primary Integrity hazard identification and risk control; • resources, organisation and Management, including competency assurance; • information Management and documentation; • primary Integrity Management policy, objectives and strategy; • inspection, examination and testing; • evaluation of structure and other primary systems; • maintenance, repair and upkeep; • audit, review and continual improvement. The framework also contains guidance based on the application of existing standards and industry published documents. Finally, guidance is given on the implementation of the framework.Copyright © 2011 by Crown
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Initiative on Structural Integrity Management of Ageing North Sea Installations
Volume 5: Materials Technology; CFD and VIV, 2008Co-Authors: A. Stacey, M. BirkinshawAbstract:With an ever-increasing population of ageing offshore installations in the North Sea, the Health and Safety Executive’s (HSE’s) Offshore Safety Division has focused its front-line operational activity in recent years on the structural Integrity Management process and establishing the extent of any deterioration in structural Integrity. The current phase of work, the Structural Integrity Management Inspection Programme (SIMIP), is described and the findings to date are presented in this paper.Copyright © 2008 by British Crown
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Structural Integrity Management Framework for Fixed Jacket Structures
Volume 5: Materials Technology; CFD and VIV, 2008Co-Authors: A. Stacey, M. Birkinshaw, J. V. Sharp, P. MayAbstract:In recent years, a significant amount of effort has been expended by HSE and the offshore industry on the development of good practice for structural Integrity Management in the new code for offshore structures, ISO 19902. However, a review of the structural Integrity Management of fixed offshore installations operated on the UKCS has indicated that duty holders adopt varying approaches, in terms of both the methods used and effectiveness. The elements of a framework for the Management of the structural Integrity of fixed jacket structures are presented.Copyright © 2008 by British Crown
