scholarly journals Development of KPI’s for Ageing Export Pipelines in the UK North Sea

2021 ◽  
Vol 9 (12) ◽  
pp. 1784-1790
Author(s):  
Olutayo Opeyemi Ogunmilua
Keyword(s):  
North Sea ◽  
Oil And Gas ◽  
Degradation Mechanism ◽  
Oil And Gas Industry ◽  
Third Party ◽  
Gas Industry ◽  
Efficient Management ◽  
Integrity Management ◽  
The Uk ◽  
Fatigue Corrosion

Abstract: Export pipelines are of inestimable value to the oil and gas industry, as they have continuously provided a path and means for hydrocarbon transportation. The most recent report from the UK HSE shows that there are about 1372 pipelines installed in the UK North-sea and about 442 of them are ageing export pipelines. The most unique function of these pipelines is to convey fluids from HC wells to the available processing facility; which are applicable for both onshore and offshore applications. During the useful life of these pipelines, they encounter various degradations that range from fatigue, corrosion, thermal expansion, spans, erosion and many other associated third-party challenges. It is the responsibility of duty holders to ensure that these degradations do not propagate into triggering hazardous and catastrophic incidents, to this effect, it is necessary for operators to protect the state of these pipelines by the application of an efficient management structure known as Pipeline Integrity Management System (PIMS). Keywords: Pipeline, Export, Ageing, Key Performance Indicators, PARLOC, OGP, Management, Integrity, Degradation Mechanism, Mitigation, PIMS.

Subsea Cable Stability on Rocky Seabeds: Comparison of Field Observations Against Conventional and Novel Design Methods

2018 ◽  
Author(s):  
Terry Griffiths ◽  
Scott Draper ◽  
Liang Cheng ◽  
Feifei Tong ◽  
Antonino Fogliani ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Power Transmission ◽  
Small Diameter ◽  
Oil And Gas Industry ◽  
Operational Reliability ◽  
Design Methods ◽  
Gas Industry ◽  
Integrity Management ◽  
Tidal Stream ◽  
Almost All

As offshore renewable energy projects progress from concept demonstration to commercial-scale developments there is a need for improved approaches beyond conventional cable engineering design methods that have evolved from larger diameter pipelines for the oil and gas industry. New approaches are needed to capture the relevant physics for small diameter cables on rocky seabeds to reduce the costs and risks of power transmission and increase operational reliability. This paper reports on subsea cables that MeyGen installed for Phase 1a of the Pentland Firth Inner Sound tidal stream energy project. These cables are located on rocky seabeds in an area where severe metocean conditions occur. ROV field observation of these cables shows them to be stable on the seabed with little or no movement occurring over almost all of the cable routes, despite conventional engineering methods predicting significant dynamic movement. We cite recent research undertaken by the University of Western Australia (UWA) to more accurately assess the hydrodynamic forces and geotechnical interaction of cables on rocky seabeds. We quantify the conformity between the cables and the undulating rocky seabed, and the distributions of cable-seabed contact and spanning via simulations of the centimetric-scale seabed bathymetry. This analysis leads to calculated profiles of lift, drag and seabed friction along the cable, which show that all of these load and reaction components are modelled in an over-conservative way by conventional pipeline engineering techniques. Overall, our analysis highlights that current cable stability design can be unnecessarily conservative on rocky seabeds. Our work foreshadows a new design approach that offers more efficient cable design to reduce project capex and enhance through-life integrity management.

Nimrod XV230—reflections on leadership, culture and priorities

2017 ◽  
Vol 57 (2) ◽  
pp. 374
Author(s):  
Martin Anderson
Keyword(s):  
Oil And Gas ◽  
Health And Safety ◽  
Oil And Gas Industry ◽  
Royal Air Force ◽  
Gas Industry ◽  
Leadership Culture ◽  
Key Issues ◽  
The Uk ◽  
Organisational Factors ◽  
Independent Inquiry

On 2 September 2006 a reconnaissance aircraft Royal Air Force Nimrod XV230 suffered a catastrophic mid-air fire on a mission over Afghanistan, leading to the total loss of the aircraft and the death of all 14 service personnel. This paper summarises key issues from an independent inquiry and challenges the oil and gas industry to reflect on these. The author, a Chartered specialist in human and organisational factors, contributed to The Nimrod Review as a Specialist Inspector with the UK Health and Safety Executive.

Ready to collaborate? Operator and supply chain under the spotlight

2017 ◽  
Vol 57 (2) ◽  
pp. 498
Author(s):  
Mike Lynn ◽  
Alan Samuel
Keyword(s):  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Commodity Price ◽  
Capital Projects ◽  
Gas Industry ◽  
New Ways Of Working ◽  
Service Companies ◽  
The North ◽  
The North Sea ◽  
The Uk

In the last 12 months or so, particularly with the drop in oil price, there’s been a lot of speculation about the future of the Australian oil and gas industry. Strenuous efforts are being made to bring down costs, reduce complexity and expedite the completion of major capital projects. Yet with the commodity price looking likely to be subdued for some time, serious questions persist. How can we sustain activity in Australia, secure the investment needed to continue exploration and appraisal drilling, for the next wave of projects? In looking for answers to these challenges, collaboration is a theme that comes up time and time again. But what does it actually mean? What does it look like in practice? Who does it well and how? And which companies are reaping the rewards of great collaboration? To fill this knowledge gap we are launching a survey which will look at many aspects of collaboration in the Australia and compare this with the results of similar surveys conducted in the UK. We will be looking to survey both operators and service companies working in the Australia and find out: What does collaboration mean? What constitutes effective collaboration? How do companies view themselves and each other as collaborators? How does collaboration in Australia compare with companies in the North Sea? We hope a better understanding of collaboration could help companies in Australia continue to improve productivity and efficiency, adopt new ways of working, and truly make the most of Australia’s abundant resources.

Digital innovation in subsea integrity management

2020 ◽  
Vol 60 (1) ◽  
pp. 215
Author(s):  
Ricky Thethi ◽  
Dharmik Vadel ◽  
Mark Haning ◽  
Elizabeth Tellier
Keyword(s):  
Domain Knowledge ◽  
Oil And Gas ◽  
Digital Technologies ◽  
Oil And Gas Industry ◽  
Gas Industry ◽  
Cost Efficiencies ◽  
Exploration And Production ◽  
Integrity Management ◽  
Offshore Oil And Gas ◽  
Dynamic Structures

Since the 2014 oil-price downturn, the offshore oil and gas industry has accelerated implementation of digital technologies to drive cost efficiencies for exploration and production operations. The upstream offshore sector comprises many interfacing disciplines such as subsurface, drilling and completions, facilities and production operations. Digital initiatives in subsurface imaging, drilling of subsea wells and topsides integrity have been well publicised within the industry. Integrity of the subsea infrastructure is one area that is currently playing catch up in the digital space and lends itself well for data computational efficiencies that artificial-intelligence technologies provide, to reduce cost and lower the risk of subsea equipment downtime. This paper details digital technologies employed in the area of subsea integrity management to meet the objectives of centralising access to critical integrity data, automating workflows to collect and assess data, and using machine learning to perform more accurate and faster engineering analysis with large volumes of field-measured data. A comparison of a typical subsea field is presented using non-digital and digital approaches to subsea integrity management (IM). The comparison demonstrates where technologies such as digital twins for dynamic structures, and auto anomaly detection by using image recognition algorithms can be deployed to provide a step change in the quality of subsea integrity data coming from field. It is demonstrated how the use of a smart IM approach, combined with strong domain knowledge in subsea engineering, can lead to cost efficiencies in operating subsea assets.

Towards Implementing Condition-Based Maintenance (CBM) Policy for Offshore Blowout Preventer (BOP) System

2019 ◽  
Author(s):  
Tobiloba Elusakin ◽  
Mahmood Shafiee ◽  
Tosin Adedipe
Keyword(s):  
Oil And Gas ◽  
Cost Savings ◽  
Oil And Gas Industry ◽  
Condition Based Maintenance ◽  
Gas Industry ◽  
Training Requirements ◽  
Blowout Preventer ◽  
Integrity Management ◽  
Maintenance Personnel ◽  
Oil And Gas Companies

Abstract With the steadily growing demand for energy in the world, oil and gas companies are finding themselves facing increasing capital and operating costs. To ensure the economic viability of investments and improve the safety of operations, oil and gas companies are promoting their asset integrity management (AIM) systems. In the past, the oil and gas industry adopted reactive maintenance regimes, which involved recertification, testing and repair of faulty equipment while trying to achieve minimum downtime. As technology becomes more affordable, operators have been able to carry out improved fault diagnosis, prognosis and maintenance optimisation. As a result of this, condition-based maintenance (CBM) is being adopted more and more as the preeminent maintenance regime for oil and gas equipment. The blowout preventer (BOP) is one of the most expensive and safety critical drilling equipment in the oil and gas industry. However, there have been very few studies and best practices about how to develop a CBM policy and what specific monitoring techniques and devices will be required to implement it for the BOP system. This paper proposes a V-model based architecture for designing a CBM policy in BOP systems. As a result of the model proposed, gaps in implementation are identified and all the hardware, software and training requirements for implementing the CBM solution in BOP systems will be outlined in detail. Our proposed CBM framework will help BOP operators and maintenance personnel make cost savings through less repairs and replacements and minimal downtime.

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