A Hybrid Topside Structural Approach to the Management of Aging Fleet

2021 ◽  
Author(s):  
Biramarta Isnadi ◽  
Luong Ann Lee ◽  
Sok Mooi Ng ◽  
Ave Suhendra Suhaili ◽  
Quailid Rezza M Nasir ◽  
...  
Keyword(s):  
Structural Integrity ◽  
Metal Loss ◽  
Web Based ◽  
Strong Basis ◽  
Asset Risk ◽  
Risk Ranking ◽  
Design Life ◽  
Industry Standards ◽  
Integrity Management ◽  
Inspection Data

Abstract The objective of this paper is to demonstrate the best practices of Topside Structural Integrity Management for an aging fleet of more than 200 platforms with about 60% of which has exceeded the design life. PETRONAS as the operator, has established a Topside Structural Integrity Management (SIM) strategy to demonstrate fitness of the offshore topside structures through a hybrid philosophy of time-based inspection with risk-based maintenance, which is in compliance to API RP2SIM (2014) inspection requirements. This paper shares the data management, methodology, challenges and value creation of this strategy. The SIM process adopted in this work is in compliance with industry standards API RP2SIM, focusing on Data-Evaluation-Strategy-Program processes. The operator HSE Risk Matrix is adopted in risk ranking of the topside structures. The main elements considered in developing the risk ranking of the topside structures are the design and assessment compliance, inspection compliance and maintenance compliance. Effective methodology to register asset and inspection data capture was developed to expedite the readiness of Topside SIM for a large aging fleet. The Topside SIM is being codified in the operator web-based tool, Structural Integrity Compliance System (SICS). Identifying major hazards for topside structures were primarily achieved via data trending post implementation of Topside SIM. It was then concluded that metal loss as the major threat. Further study on effect of metal loss provides a strong basis to move from time-based maintenance towards risk-based maintenance. Risk ranking of the assets allow the operator to prioritize resources while managing the risk within ALARP level. Current technologies such as drone and mobile inspection tools are deployed to expedite inspection findings and reporting processes. The data from the mobile inspection tool is directly fed into the web based SICS to allow reclassification of asset risk and anomalies management.

Structural Integrity Management (SIM) via a Digitalized Structural Integrity Compliance System

2020 ◽  
Author(s):  
Sok Mooi Ng ◽  
Biramarta Isnadi ◽  
Luong Ann Lee ◽  
Syahnaz Omar ◽  
Siti Nurshamshinazzatulbalqish Saminal ◽  
...  
Keyword(s):  
Decision Making ◽  
Weight Control ◽  
Structural Integrity ◽  
Successful Implementation ◽  
Floating Structure ◽  
Web Based ◽  
Software Application ◽  
Risk Ranking ◽  
Integrity Management ◽  
Inspection And Maintenance

Abstract The objective of this paper is to present the digitalization of Structural Integrity Management for PETRONAS, via a web-based Structural Integrity Compliance System (SICS). Developed initially as a software application to manage the vast database for integrity management of offshore fleet, the system covers the substructure, topside structures, onshore civil and structural assets and ship-shaped floating structure modules. The system is developed in line with API RP 2SIM, taking the SIM process of Data-Evaluation-Strategy-Program. The Data captured in the system inclusive of the design, construction, characteristics, inspection, foundation and metocean data required for evaluation of the likelihood of failure. While the life safety, environmental pollution & business loss data is assigned to evaluate the consequence of failure. After successful implementation of substructure module, the system has been expanded to capture data and evaluate risk of other types of assets, namely the topside structures, onshore civil and structural assets and at last, a module developed for a ship shaped floating structure. A centralized database to manage the integrity a large aging fleet provides good visibility to the management in order to prioritize resources (budget, manpower and logistic) for inspection and maintenance, at the same time reducing the risk of operation disruption due to non-compliance. The system has created much cost saving through Risk-Based Underwater Inspection (RBUI) and risk-based anomalies repair. SICS consists of the risk ranking sub-module and also other decision making tools including Strengthening-Modification and Repair (SMR) Toolkit, and Technical Limits Weight Control (TLWC) Tool. These toolkits are codified to provide quick decision making to management to evaluate the feasibility of SMR scheme or modification involving additional topside weights.

Alternative Framework for Structural Integrity Management of Jacket Platform Beyond its Design Life

2017 ◽  
Author(s):  
A. Kongchang ◽  
A. Danthainum ◽  
T. Chattratichart ◽  
P. Sonachai ◽  
T. Thavornsuk ◽  
...  
Keyword(s):  
Structural Integrity ◽  
Jacket Platform ◽  
Alternative Framework ◽  
Design Life ◽  
Integrity Management

Implementation of Advanced Offshore Structure Integrity Management based on API RP2SIM in Medco E&P Offshore

2020 ◽  
Author(s):  
E. Islami
Keyword(s):  
Structural Integrity ◽  
Good Practice ◽  
General Information ◽  
Offshore Structure ◽  
Potential Cost ◽  
Integrity Management ◽  
Advanced Analysis ◽  
Inspection Data ◽  
Data Update ◽  
Reserve Strength

The structural integrity management (SIM) is important for the safe operation and maintenance of offshore fixed platform installation in accordance with the objectives set out in the Asset & Operating Integrity Philosophy. A Structural Integrity Program as part of the SIM is required as an ongoing process to ensure fitness-for-purpose of an offshore structure. Medco E&P developed the SIM system based on API RP2SIM in year of 2014 and has been successfully implementing it for the last 6 years. Based on this system, the interval of underwater inspection has been lengthened from every 2 years (time based inspection) into 4-10 years interval depend on the platform criticality. The potential cost saving of 70% is obtained as a result of implementation the underwater inspection for 10 years period based on inspection practices recommended in API RP 2SIM. The implementation of SIM process based on API RP 2SIM includes managing data, evaluation, strategy and program, the continuous improvement efforts and lesson learned. Medco E&P has implemented an advanced SIM program by determining the underwater inspection program based on risk based underwater inspection and consistently revisit and review the methodology; conduct the advanced analysis for reserve strength ratio; manage platform requalification; follow-up underwater inspection and repair; develop the integrated database system and the platform healthiness dashboard. The integrated database SIM System established a good practice for managing data record, data trending and data update since the system itself contains the platform of general information such as; the inspection data, inspection plan, structural analysis record, change record, reference document as well as the reporting tools. This dashboard is a combined status of initiatives, programs, implementation and evaluations that enables the integrity status can be accessed by management or other groups in the Company to promote effective communication and basis for decision making.

Balancing Pipeline Safety and Cost Integrity Management Through Performance Validation of In-Line Inspection Data

2010 ◽  
Author(s):  
Rick McNealy ◽  
Sergio Limon-Tapia ◽  
Richard Kania ◽  
Martin Fingerhut ◽  
Harvey Haines
Keyword(s):  
Failure Criteria ◽  
Actual Condition ◽  
Metal Loss ◽  
Integrity Management ◽  
Multiple Case ◽  
Multiple Case Studies ◽  
Inspection Data ◽  
Performance Validation ◽  
The Cost ◽  
Pipeline Safety

In-Line Inspection (ILI) surveys are widely employed to identify potential threats by capturing changes in pipe condition such as metal loss, caused by corrosion. The better the performance and interpretation of these survey data, the higher the reliability of being able to predict the actual condition of the pipe and required remediation. Each ILI survey has a certain level of conservatism from the assessment equations such as B31G and sensitivity to ILI performance for measurement uncertainty. Multiple levels of conservatism intended to limit the possibility of a non-conservative assessment can result in a significant economic penalty and excessive digs without improving safety. A study was undertaken to evaluate the reliability of responses to ILI corrosion features through multiple case studies examining the effects of failure criteria and data analysis parameters. This paper discusses the effect of validated ILI performance on safety, and addresses the risk of false acceptance of corrosion indications at a prescribed safety factor. The cost of unnecessary excavations due to falsely rejecting ILI predictions is also discussed.

The Role of the External and Internal Reinforcing on the Structural Integrity of Industrial and Transporting Steel Pipelines

2010 ◽  
Vol 659 ◽  
pp. 55-60
Author(s):  
János Lukács ◽  
Gyula Nagy ◽  
Imre Török
Keyword(s):  
Management System ◽  
Structural Integrity ◽  
Polymer Matrix Composites ◽  
Research Work ◽  
Metal Loss ◽  
Engineering Structures ◽  
Pipeline Systems ◽  
Integrity Management ◽  
Girth Welds

The lifetime management of different engineering structures and structural elements is one of the important technical-economic problems nowadays. On the one hand, the aim of our research work is to develop an integrity management plan for pipelines and pipeline systems, and afterwards a Pipeline Integrity Management System. Material databases play important role both on the integrity management and on the engineering critical assessment of the pipeline systems. On the other hand, the aim of our research work is to establish the Pipeline Integrity Management System with different data, frequently with experimental data. The direct purpose of the paper is to present the role of the external and internal reinforcing on the structural integrity of industrial and transporting steel pipelines, based on own examinations. External and internal reinforcement was developed using carbon fibre and glass fibre polymer matrix composites, respectively. Fatigue and burst tests were performed on pipeline sections containing natural and artificial metal loss defects, and girth welds including weld defects. Both unreinforced and reinforced pipeline sections were examined. The burst pressures belonging to the unreinforced and the reinforced pipelines, and belonging to the passed and not passed girth welds were compared.

Reassessment Issues in Life Cycle Structural Integrity Management of Fixed Steel Installations

2002 ◽  
Author(s):  
A. Stacey ◽  
M. Birkinshaw ◽  
J. V. Sharp
Keyword(s):  
Life Cycle ◽  
Structural Integrity ◽  
Offshore Structures ◽  
Iso Standard ◽  
Existing Structures ◽  
System Integrity ◽  
The Status ◽  
Important Trend ◽  
Integrity Management ◽  
Inspection Data

There is an increasing number of ageing installations in UK waters, many of which are being or will be operated beyond their original planned service life. This important trend, in combination with (a) the introduction of risk-based goal-setting regulations which require the maintenance of life cycle integrity as a key target, (b) the development of guidelines in the draft ISO standard for offshore structures, ISO 19902, and (c) significant technology advances in recent years (e.g. in loading, fatigue, fire and blast integrity and system integrity), makes reassessment an important consideration in the structural integrity management of offshore installations. The paper outlines procedures in place for reassessment, including those in the draft ISO standard, and reviews recent technical advances relevant to this area. The important role of inspection and maintenance for existing structures is assessed and related to both current practices and target requirements. The need for reliable and comprehensive inspection data is important for reassessment and the status of this is reviewed. An overall framework for reassessment is developed in the light of the above issues.

Life Extension Issues for Ageing Offshore Installations

2008 ◽  
Author(s):  
A. Stacey ◽  
M. Birkinshaw ◽  
J. V. Sharp
Keyword(s):  
Structural Integrity ◽  
Life Extension ◽  
Original Design ◽  
The North ◽  
Design Life ◽  
Offshore Installations ◽  
Need To Evaluate ◽  
Integrity Management ◽  
The North Sea ◽  
The Uk

With many offshore installations in the UK sector of the North Sea now reaching or being in excess of their original anticipated design life, there is a particular need to evaluate approaches to structural integrity management by offshore operators. Ageing processes can affect the structural integrity of the installation and demonstration of adequate performance beyond its original design life is thus a necessary requirement. This paper addresses the issues relevant to the life extension of ageing installations.

Enbridge Comparison of Crack Detection In-Line Inspection Tools

2002 ◽  
Author(s):  
Garrett H. Wilkie ◽  
Tanis J. Elm ◽  
Don L. Engen
Keyword(s):  
Power Systems ◽  
Elastic Wave ◽  
Crack Detection ◽  
Management Program ◽  
Metal Loss ◽  
Integrity Management ◽  
Magnetic Inspection ◽  
Extensive Program ◽  
Inspection Data ◽  
Geometry Inspection

Enbridge Pipelines Inc. operates the world’s longest and most complex liquids pipeline network. As part of Enbridge’s Integrity Management Program In-Line Inspections have been and will continue to be conducted on more than 15,000 km of pipeline. This extensive program is comprised of a mature metal loss and geometry inspection component as well as a crack inspection program utilizing the most sophisticated In-Line Inspection (ILI) tools available. Enbridge conducted its first ultrasonic crack inspection with the British Gas Elastic Wave Vehicle (Now GE Power Systems – Oil & Gas – PII Pipeline Solutions) in September 1993 on a Canadian portion of it’s 864–mm (34”) diameter line. The Elastic Wave Vehicle was also used for crack detection on additional segments of this same 864–mm (34”) diameter line during the following years, 1994, 1995 and 1996. Enbridge then conducted its first crack inspection with the Pipetronix UltraScan CD tool (Now also GE Power Systems – Oil & Gas – PII Pipeline Solutions) in November 1997 on a segment of this 864–mm (34”) diameter line that was previously inspected with the Elastic Wave Vehicle. The UltraScan CD tool was then utilized again in 1999, 2000 and 2001 completing crack inspection of the Canadian portion of this 864–mm (34”) diameter line. Enbridge conducted its first magnetic crack inspection with the PII TranScan (TFI) Circumferential Magnetic inspection tool in December 1998 on a United States portion of another 864–mm (34”) diameter line. This same section of line was subsequently inspected with the PII UltraScan CD tool in July 2001. This paper discusses the comparison of results from overlapping crack inspection data analysis from these three PII crack detection tools. Specifically, the overlap of the UltraScan CD and Elastic Wave Vehicle along with the overlap of the UltraScan CD and TranScan (TFI) tool. The relative performance of each crack detection tool will be explored and conclusions drawn.

Corrosion Metal Loss Interaction From In-Line Inspection and How it Can Affect the Calculated Failure Pressure

2012 ◽  
Author(s):  
Lucinda Smart ◽  
Richard McNealy ◽  
Harvey Haines
Keyword(s):  
Field Measurements ◽  
Metal Loss ◽  
Data Correlation ◽  
Failure Pressure ◽  
Industry Standards ◽  
Direct Measurements ◽  
Non Destructive ◽  
Flux Leakage

In-Line Inspection (ILI) is used to prioritize metal loss conditions based on predicted failure pressure in accordance with methods prescribed in industry standards such as ASME B31G-2009. Corrosion may occur in multiple areas of metal loss that interact and may result in a lower failure pressure than if flaws were analyzed separately. The B31G standard recommends a flaw interaction criterion for ILI metal loss predictions within a longitudinal and circumferential spacing of 3 times wall thickness, but cautions that methods employed for clustering of ILI anomalies should be validated with results from direct measurements in the ditch. Recent advances in non-destructive examination (NDE) and data correlation software have enabled reliable comparisons of ILI burst pressure predictions with the results from in-ditch examination. Data correlation using pattern matching algorithms allows the consideration of detection and reporting thresholds for both ILI and field measurements, and determination of error in the calculated failure pressure prediction attributable to the flaw interaction criterion. This paper presents a case study of magnetic flux leakage ILI failure pressure predictions compared with field results obtained during excavations. The effect of interaction criterion on calculated failure pressure and the probability of an ILI measurement underestimating failure pressure have been studied. We concluded a reason failure pressure specifications do not exist for ILI measurements is because of the variety of possible interaction criteria and data thresholds that can be employed, and demonstrate herein a method for their validation.

Testing of Acoustic Emission Technology to Detect Cracks and Corrosion in the Marine Environment

2010 ◽  
Vol 26 (02) ◽  
pp. 106-110
Author(s):  
Ge Wang ◽  
Michael Lee ◽  
Chris Serratella ◽  
Stanley Botten ◽  
Sam Ternowchek ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Structural Integrity ◽  
Pilot Project ◽  
Development Project ◽  
Management Program ◽  
Pipeline System ◽  
Inspection Planning ◽  
Structural Degradation ◽  
Integrity Management ◽  
Acoustic Emission Technology

Real-time monitoring and detection of structural degradation helps in capturing the structural conditions of ships. The latest nondestructive testing (NDT) and sensor technologies will potentially be integrated into future generations of the structural integrity management program. This paper reports on a joint development project between Alaska Tanker Company, American Bureau of Shipping (ABS), and MISTRAS. The pilot project examined the viability of acoustic emission technology as a screening tool for surveys and inspection planning. Specifically, testing took place on a 32-year-old double-hull Trans Alaska Pipeline System (TAPS) trade tanker. The test demonstrated the possibility of adapting this technology in the identification of critical spots on a tanker in order to target inspections. This targeting will focus surveys and inspections on suspected areas, thus increasing efficiency of detecting structural degradation. The test has the potential to introduce new inspection procedures as the project undertakes the first commercial testing of the latest acoustic emission technology during a tanker's voyage.

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