An expert system for offshore structure inspection and maintenance

Langdon, A.; Ahmad, Khalid A.; Frieze, P A

doi:10.1016/0963-8695(92)90042-f

Cited by 3 publications

(4 citation statements)

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“…Along the service period of a fixed offshore structure, there exists a possibility of joint failure through fatigue crack propagation despite the presence of various enhancements-such as a thicker can, weld profiling, or other post-weld improvements [26]. In 1991, to assess the severity and recommendations for corrective actions on fixed offshore platforms using the PLAIM (platform lifetime assessment through analysis, inspection, and maintenance), results were obtained regarding the breakdown of structural defects, ranging from severity scores to a series of recommendations for corrective actions using informal and qualitative knowledge as well as expert systems [27]. In addition, research was conducted on developing and applying inspection techniques for fixed and floating platforms and oil rigs.…”

Section: Fixed Offshore Platform Inspectionsmentioning

confidence: 99%

“…Author Purpose Variable Method Guede [16] Risk assessment and inspection plan development Risks and consequences Risk-based assessment Ratnayake [29] Reviewing the evolution of inspections of aging oil and gas facilities Inspection strategies and industry challenges Markeset et al [17] Identify and discuss maintenance challenges and maintenance practices for subsea oil production systems Failure and maintenance Onoufirou [28] Discuss the development and application of inspection techniques for fixed and floating platforms as well as jack-up drilling rigs Reliability Reliability-based inspection Tawekal and Tawekal [7] Implementation of risk-reliability-based underwater inspection Probability of failure Ahmad et al [27] Assess severity and recommend corrective action Database of platform Other methods (expert system; EMA and CMCM;…”

Section: Nomentioning

confidence: 99%

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Determining Factors of Fixed Offshore Platform Inspections in Indonesia

2023

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Damage to fixed offshore platforms can affect their structural integrity in addition to environmental conditions. Inspections are important because they aim to detect and control defects or damage to make repairs and carry out maintenance, if necessary, to reduce the possibility of failure. This study aims to determine the factors that affect inspections of fixed offshore platforms in Indonesia. To determine these factors, questionnaires were distributed to experts, including senior practitioners and Ph.D. academics, involved in offshore platforms. For data processing, we first used descriptive statistics based on the mean and SD to indicate the ranking of a factor’s importance. Secondly, we performed factor analyses to summarize the information contained in multiple factors. The two methods are carried out to complement each other in determining the factors formed from the respondents’ assessments. This study finds three factors in inspections of fixed offshore platforms based on the percentage variance: the first factor is environmental conditions, the second is structural design, and the third is anomalies and defects. By knowing these factors, such comprehension can be used as a consideration in conducting inspections. Each factor must be identified because each factor can affect inspections of fixed offshore platforms.

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Section: Fixed Offshore Platform Inspectionsmentioning

confidence: 99%

Section: Nomentioning

confidence: 99%

Determining Factors of Fixed Offshore Platform Inspections in Indonesia

2023

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“…However, the frequent job changing of personnel appointed for inspection planning causes problems in transferring knowledge and experience. Ahmad et al (1991) developed a knowledge-based expert system for the acquisition of experiential knowledge, rule extraction from expert opinion, and representation of the knowledge for solving problems. The output of their system provides the documentation of informal and qualitative knowledge together with a prototype expert system for eliciting details of defects in structures, empirically assessing the severity of the defect and recommending a series of remedial actions.…”

Section: Static Mechanical Systemsmentioning

confidence: 99%

Mechanization of static mechanical systems inspection planning process

Ratnayake

2015

Journal of Quality in Maintenance Engineering

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Purpose -The purpose of this paper is to review the evolution of inspection and maintenance (I&M) practices used for aging and newly built oil and gas (O&G) facilities. It also proposes a framework and an approach for mechanizing inspection planning to perform preventive maintenance (PM) activities, taking technical condition (TC) and relative degradation (RD) into consideration. Design/methodology/approach -The paper systematically collects, categorizes, and analyzes the published literature of both researchers and practitioners. It also utilizes industrial experience that has been accrued and utilized from inspection planning practices for static mechanical equipment on aging O&G production plants.Findings -The paper defines significant issues in I&M of O&G assets related to: different philosophies; stakeholders' requirements trade-off; dependability and asset deterioration challenges; items interacting with inspection planning mechanization processes and I&M optimization approaches. A framework is identified to mechanize the inspection planning process in order to reduce the effect arising from human involvement, while improving the effective utilization of data from different sources. The suggested approach improves the quality of an inspection program, while minimizing the variability and cost to the engineering contractors as well as to the owners of O&G facilities. Practical implications -The mechanization of inspection planning (MIP) is vital to have inspection programs with uniform quality. The currently employed inspection practices face challenges in maintaining uniform quality from one inspection program to another due to the variability present in the planning process, especially among the different inspection planning engineers. The suggested fuzzy logic-based MIP supports the minimization of the variability and increases the quality of inspection programs. Originality/value -The paper provides a comprehensive review of research contributions and industrial development efforts. These will be useful to the life cycle stakeholders in both academia and industry in understanding the inspection planning problem and solution space within the O&G asset I&M context.

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“…in developing a plan for rail relay or replacement. Ahmed et al (1991) developed an expert system for offshore structure inspection and maintenance. Kobbacy (1992) argued the use of KBS in evaluation and enhancement of maintenance routines.…”

Section: Knowledge Based Systems (Kbss)mentioning

confidence: 99%

Artificial Intelligence in Maintenance

Kobbacy

Springer Series in Reliability Engineering

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An expert system for offshore structure inspection and maintenance

Cited by 3 publications

References 0 publications

Determining Factors of Fixed Offshore Platform Inspections in Indonesia

Determining Factors of Fixed Offshore Platform Inspections in Indonesia

Mechanization of static mechanical systems inspection planning process

Artificial Intelligence in Maintenance

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