TRACS JIP – TTR Life Extension Process

2021 ◽  
Author(s):  
Dhyanjyoti Deka ◽  
Mike Campbell ◽  
Vinayak Patil ◽  
Michael Long Ge ◽  
Steve Wong ◽  
...  
Keyword(s):  
Initial Data ◽  
Data Gathering ◽  
Real Life ◽  
Threat Assessment ◽  
Life Extension ◽  
Design Life ◽  
Extended Life ◽  
Accessibility Issues ◽  
Extension Analysis ◽  
Extension Process

Abstract The Tensioned Riser Assessment for Continued Service (TRACS) JIP develops a structured life extension process for TTR systems including single casing, dual casing, buoyancy can supported and tensioner supported TTRs. The JIP bridges regulatory and API frameworks and achieves industry consensus on analysis, inspections, and documentation. The life extension process developed in this JIP consists of detailed roadmaps that guide the operator through the different assessment steps starting from initial data gathering through to the development of the forward-looking IMP. The JIP life extension process is based on a threat assessment philosophy which ensures identification and assessment of all possible threats to the integrity of the TTR in its extended life. The JIP process is validated against three real life TTR systems that are nearing the end of their design lives. Potential threats to the integrity of these TTRs during the projected continued service beyond the design life are identified and specific inspection and analysis recommendations to safely manage or mitigate these threats are made. The JIP also provides TTR life extension analysis guidance while considering the opportunities to reduce conservatism compared to new designs. Inspection of TTRs is challenging due to accessibility issues and the pipe in pipe construction. Several subsea NDE inspection tools are surveyed in this JIP and their applicability to TTRs is discussed.

Issues for Consideration in Life Extension and Managing Ageing Facilities

2011 ◽  
Author(s):  
Solfrid Ha˚brekke ◽  
Lars Bodsberg ◽  
Per Hokstad ◽  
Gerhard Ersdal
Keyword(s):  
Oil And Gas ◽  
Point Of View ◽  
Life Extension ◽  
Original Design ◽  
Material Degradation ◽  
Safety Level ◽  
Design Life ◽  
Extended Operation ◽  
Norwegian Continental Shelf ◽  
Extension Process

A large number of facilities and parts of the infrastructure on the Norwegian Continental Shelf are approaching or have exceeded their original design life. Many fields, however, have remaining recoverable oil and gas reserves which may be profitable if the field’s life is extended. From a safety point of view, the condition of systems, structures and components may not be acceptable for extended operation. Ageing and life extension have been a top priority for the Petroleum Safety Authority Norway (PSA) and PSA has asked SINTEF to conduct a study of various aspects of ageing and life extension. The paper presents main results from the study, including how to document the safety of an ageing facility and how to uphold the safety level by means of a maintenance programme balancing three aspects of ageing: 1) Material degradation, 2) Obsolescence, i.e. operations and technology being “out of date” and 3) Organisational issues. The paper presents six main steps of the life extension process and discusses important issues to consider for operators in a life extension process.

Material Issues in Ageing and Life Extension

2011 ◽  
Author(s):  
Erik Ho¨rnlund ◽  
Gerhard Ersdal ◽  
Rolf H. Hinderaker ◽  
Roy Johnsen ◽  
John Sharp
Keyword(s):  
North Sea ◽  
Research Work ◽  
Life Extension ◽  
Material Degradation ◽  
The North ◽  
Design Life ◽  
The North Sea ◽  
Extension Process

A considerable number of the structures in the Norwegian part of the North Sea have passed or are close to their design life. Material degradation will play an important role in the ageing of these structures and the evaluation of their safety. An overview of research work initiated by the Petroleum Safety Authority (PSA) is presented. The paper focuses on various material aspects of ageing related to offshore facilities, the risks they represent to the integrity of a facility and how to deal with them in a life extension process. The paper presents and discusses expectations towards the industry with respect to evaluation of ageing materials in life extension.

Setting Health-Care Priorities

2019 ◽  
Author(s):  
Torbjörn Tännsjö
Keyword(s):  
Mental Health ◽  
Health Care ◽  
Real Life ◽  
Thought Experiments ◽  
Life Extension ◽  
Weighted Sum ◽  
Absolute Priority ◽  
Abstract Thought

The three most promising theories of distributive ethics are presented: Utilitarianism, with or without a prioritarian amendment. The maximin/leximin theory. Egalitarianism. Utilitarianism urges us to maximize the sum-total of happiness. When prioritarianism is added to utilitarianism we are instead urged to maximize a weighted sum of happiness, where happiness weighs less the happier you are and unhappiness weighs more the more miserable you are. The maximin/leximin theory urges us to give absolute priority to those who are worst off. Egalitarianism gives us two goals: to maximize happiness but also to level out differences with regard to happiness between persons. All of these theories are justifiable. In abstract thought experiments they conflict. When applied in real life they converge in an unexpected manner: more resources should be directed to mental health and less to marginal life extension. It is doubtful if the desired change will take place, however. What gets in its way is human irrationality.

A Framework for the Management of Ageing of Safety Critical Elements Offshore

2011 ◽  
Author(s):  
John V. Sharp ◽  
Edmund G. Terry ◽  
John Wintle
Keyword(s):  
Life Extension ◽  
Original Design ◽  
Safety Critical ◽  
Critical Elements ◽  
The North ◽  
Design Life ◽  
Offshore Installations ◽  
Management Processes ◽  
The North Sea ◽  
And Performance

Many offshore installations in the North Sea have now exceeded their original design life and are in a life extension phase. A Framework of six processes has been developed for the management of ageing of Safety Critical Elements (SCEs) in offshore installations. The processes include an analysis of the effect of ageing modes on SCE performance. Examples of performance indicators for typical SCEs are proposed based on how their condition and performance as may be affected by physical deterioration and other effects of ageing. Indicators for calibrating the maturity and effectiveness of the management processes are also suggested.

scholarly journals Integration of Indigenous Knowledge into Adult Learning Material Development and the Facilitation Methodology

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Yalalem Assefa
Keyword(s):  
Adult Education ◽  
Adult Learners ◽  
Adult Learning ◽  
Indigenous Knowledge ◽  
Knowledge Integration ◽  
Data Gathering ◽  
Real Life ◽  
Learning Material ◽  
Learning Materials ◽  
Material Development

Connecting indigenous knowledge systems and practices with adult education programs has priceless value of promoting and transferring indigenous perspectives from generation to generation. Indeed, education is the surest path to ensuring social continuity when it ought to be based on the real-life experiences of learners and what their immediate environment and social realities entail. This demands the development of relevant adult learning materials and the utilization of participatory facilitation methodologies. Considering this in mind, this study was aimed to explore the integration of indigenous knowledge into adult education practices. In doing so, a case-study design was employed. The study sample was composed of eighteen experts, seven adult education literacy center coordinators, and seventy adult learners. Interview and FGD were considered the major data-gathering tools. Also, thematic analysis was the center of this study’s data analysis. As a result, the finding indicated that even though adult learners have diverse learning experiences, narrow emphasis has been given to the development of learning concepts and objectives in adult learning materials. The application of appropriate facilitation methods through participating experienced learners remains symbolic. To enhance the positive inclusion of indigenous knowledge into adult learning, learning material and its facilitation environment must be conducive and adequately be portraited. Therefore, the objective of this study is to explore the existing practice of indigenous knowledge integration into adult education in North Wollo, from the perspectives of learning material development and utilization of the facilitation methodology.

scholarly journals Living Life as Inquiry – a Systemic Practice for Change Agents

2020 ◽  
Author(s):  
Margaret Rose Gearty ◽  
Judi Marshall
Keyword(s):  
Action Research ◽  
Data Gathering ◽  
Change Agents ◽  
Real Life ◽  
Environmental Concerns ◽  
First Person ◽  
Extensive Experience ◽  
The Past ◽  
Systemic Practice ◽  
The Many

Abstract The practical orientation of action research, together with its embedded and participative principles, means it is particularly suited to complex, interconnected questions and ‘real life’ systemic issues. In the realm of first-person action research, Judi Marshall’s (1999) influential article “Living Life as Inquiry” described how such research can extend to one’s whole life whereby professional and personal questions can be set within politically relevant frames. Over the past two decades, many students and researchers have worked with and drawn much imaginative inspiration from the idea of living life as inquiry (LLI). However little has been written to describe how the practice develops and the many forms it can take. This article draws on our extensive experience as inquirers ourselves and as educators, working with students and change agents motivated to address social and environmental concerns. Twenty years after the original article we have conducted a reflective review that included surveying the literature, and working in depth with a range of stories and current practices. From this comes a textured expansion of the language and practice of living life as inquiry as it is approached from the specificity of people’s lives. Through narrative and visual textures, we present views into the many different ways LLI is developed through day-to-day practices of experimentation, data gathering, artistic exploration, intervention and reflection. We explore what this means for quality in the enactment of inquiry. The article draws particular attention to the embodied nature of inquiry and seeks to capture its fleeting, processual quality.

The Influencing Factors and Assessment Model of Fatigue Life of Shaft

2013 ◽  
Vol 772 ◽  
pp. 427-431
Author(s):  
Yong Zhuang Yuan
Keyword(s):  
Comparative Analysis ◽  
Fatigue Life ◽  
Influencing Factors ◽  
Real Life ◽  
Product Lifecycle Management ◽  
Assessment Model ◽  
Product Lifecycle ◽  
Predicting Model ◽  
Design Life ◽  
Lifecycle Management

Predicting the life of part is emphasis base of Product Lifecycle Management, and is emphasis progress of modern product design. By exact and full analyze the influencing factors of real life of shaft, contribute to real life and design life coincidence of shaft. It can decrease property damage with product ahead of schedule failure. By comparative analysis and analytical method researched the influencing factors of shaft in used . The life predicting model of reality use is discussed and amended at present. It draws a reasonable predicting model of fatigue life. The model includes influencing factors of all in actual and decrease the error of predicting life compare with the life of real. It will establish the base of design of anti-fatigue of shaft.

LONG ISLAND POINT FRACTIONATION PLANT FACILITIES LIFE EXTENSION

2007 ◽  
Vol 47 (1) ◽  
pp. 301
Author(s):  
G.R. Keen ◽  
M.G. Sethi
Keyword(s):  
Oil And Gas ◽  
Long Island ◽  
Life Extension ◽  
Safe Operation ◽  
Design Life ◽  
Oil And Gas Resources ◽  
High Standards ◽  
Fractionation Plant ◽  
And Control

ExxonMobil Australia Pty Ltd’s subsidiary, Esso Australia Resources Pty Ltd (ExxonMobil), and BHP Billiton jointly own and operate an LPG fractionation facility at Long Island Point, near Hastings in Victoria. This facility began operating in 1970 as part of the overall development of Gippsland oil and gas resources. The facility had a nominal design life of 30 years; however, the facility will be required to operate for many more years, given the significant gas reserves remaining in Bass Strait. A plan was developed to identify and progress plant facility upgrades to ensure continued, safe operation to life end. Nine separate projects with a total value in excess of A$250 million were developed and are now in various stages of progress. The key projects include: refrigerated LPG storage tank refurbishment, fire system upgrade, a new control room and control system, and plant emergency shutdown system upgrades. These projects focus on achieving high standards of safe operations and long-term reliability through application of advances in technology to ready the facilities for their remaining life.

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