PIGGING PRODUCTS & SERVICES ASSOCIATION
Tel: +44 1224 398801, Fax: +44 1224 860644
|Wednesday 7th November 2018|
|From 7am||Networking breakfast in Elliot room for those staying at Ardoe House Hotel|
|8.50 am||Seminar presentations start|
|5.10 pm||Seminar close|
Delegates staying at the Ardoe House on a Bed & Breakfast basis can have breakfast in the Elliot Suite, which is exclusively reserved for PPSA delegates, on the morning of the seminar.
The seminar presentations will be given by PPSA members, all experts in their own field.
Oil is exported from the Gannet platform to the 3rd party operated Fulmar platform via a 16” 107km pipeline.
An alternative export route is required as the Fulmar platform will cease production prior to the Gannet field. A project is underway to bypass the Fulmar platform and tie directly into the Judy 24” pipeline and subsequently into the 34” Norpipe system terminating at Teesside.
Operational pigging for the existing 16” pipeline from Gannet to Fulmar is currently completed on a 2-weekly frequency to remove wax and water drop-out using bi-directional pigs.
The new routing will require the use of pigs that can traverse the complex geometry of the new Gannet oil export routing with changes in diameter from 16” to 24” and 34”.
A series of optimisation trials with a pigging vendor have been completed with the purpose of designing and testing a pig that can clean the 16” and 24” pipeline sections and remain neutrally buoyant in the 34” Norpipe system.
The paper will share the details of these trials, collaboration with the pigging vendor to optimise the pig design and share the findings and benefits of the technology to the wider oil and gas industry.
In-line inspection of offshore aging pipelines can become an increasingly challenging task, for example because of wax build up or depleting production and consequently low flows.
This paper discusses a recent example of such a case: the in-line inspection of PL120; an offshore 18”-20” pipeline that transports stabilized crude oil from Beryl B to Beryl A platform in the North Sea.
The challenges to inspecting PL120 can be summarized as:
Despite comprehensive pre-inspection cleaning campaigns, attempts to inspect the line using UT technology failed because of excessive wax on the internal surface of the pipeline. Although MFL technology is generally better able to deal with waxy debris, the magnetic forces make it significantly more difficult to negotiate a geometrically complex line with unfavorable operating conditions. This paper will discuss how the Apache – ROSEN team tackled these challenges and successfully developed and applied an MFL based solution that could safely inspect PL120.
This paper is a case study on development and implementation of pipeline integrity management system (PIMS) for a medium enterprise operator in the Middle East. It explains the collaborative and stepwise learn-do approach adopted by the operator’s focus group that helped in showing the value proposition of the system to higher management at each phase of the project.
PIMS must address elements such as people (organised team of various disciplines contributing to the overall objective i.e. pipeline integrity management), process (standards, procedures and policies on how to achieve the objective) and tools (resources to achieve the objective) to manage pipeline integrity. This paper describes the way BHGE and operator have worked collaboratively and adopted a stepwise approach to address all these elements to setup a PIMS within a limited budget. The process consists of PIMS gap analysis, development of procedures and excel based comprehensive semi-quantitative risk assessment, and contracting strategy resulting in utilising the PIMS contractor as a trusted partner.
The paper highlights the challenges that arise while implementing a management system how these were resolved through knowledge transfer, technical workshop, astute contracting strategy and utilising contractor as a trusted partner. It explains how the subject matter experts from the contractor are utilised to manage the pipeline network through a risk ased approach before investing on in-house software tools and personnel. It further describes the practical steps adopted in setting up risk based PIMS within limited budget and could be used as a road map for other medium enterprise operators.
When planning a pipeline cleaning campaign, an operator often has limited knowledge of the actual conditions within the pipeline and therefore uses a conservative approach based on assumption and experience to design a pigging program for a pipeline. This therefore limits the ability to plan pigging operations optimally, cost effectively, and safely.
Using currently available pressure wave analysis technology, pipeline operators can non-intrusively survey their assets to obtain a clear understanding of the pipeline’s deposit profile in a safe and cost-effective manner, without having to stop production or risk inserting tools into the pipeline. This information can then be used to identify the best approach forward for cleaning the pipeline based on the analysis results. The pressure wave analysis provides the internal pipeline bore and key data points to consider, such as whether the pipeline is in a piggable condition, requires chemical treatment, or a more direct intervention is recommended. Whichever method is necessary, the knowledge achieved by performing a non-intrusive survey upfront helps ensure pigging or maintenance is executed effectively, economically, and with minimal risk. This technique can be further implemented throughout any pigging campaign to track and optimize the program as it progresses and confirm the efficiency of the pigging methodology.
The paper discusses how using this latest pipeline deposit surveying technique allows operators to plan a pigging campaign in a safe, timely, and cost-effective manner.
State of the art and future assessment methodologies for geometrical defect types in pipelines benefit from superior inline inspection data. Post-inspection assessment of deformations such as strain, fatigue life, or finite element modelling require the most detailed, accurate and high-resolution data of the pipeline available.
Therefore, NDT Global has developed and validated a fleet with a new, reliable, and robust technology for pipeline geometry measurement, based on the ultrasonic measurement principle with inherent advantages such as bidirectional capabilities and wall thickness data acquisition in one pass.
Since the first successful commercial inspection in March 2016, the Atlas UG tool fleet has successfully conducted more than 3,100 km worldwide, achieving a 100% first run success rate and received positive feedback from operators.
Extensive testing and field verifications prove the accuracy and reliability of the ultrasonic technology.
Even very slight temperature variations can cause a disruptive “suck and blow effect” effect within pipelines, which can prove problematic during welding activities. In 2016 Aubin provided elastomeric plugs designed to resist the pressure differential, to temporarily plug the pipe. Once the plugs were in place, welding operations would commence, then the pig train would be extruded through a subsea discharge port.
The client provided design constraints, causing Aubin’s in-house engineering team to design a specialised pig launcher. The constraints were:
The designed pig launcher used a nylon disk to push the elastomeric plug into the duplex pipeline, and was operated using a battery powered drill, which was supplied with the pig launcher.
Feedback from the client was that the launcher and pigs performed perfectly, as well as they had during testing. The pigs were inserted into three different dry lines, approximately 30Km long. The pigs were left in the lines for seven months, before being extruded through a 1” port subsea. The client is now planning to use these plugs in other welding and plugging operations.
This paper presents a novel approach to flexible riser life extension through FlexIQ which combines inspection data with a fully simulation-based irregular wave approach to provide life extension assessments.
FlexIQ combines the two proprietary technologies: MEC-FIT™ inspection technique from Innospection and FLEXAS™ numerical solver from Intecsea which allows high-resolution stochastic fatigue life to be captured based on realistic conditions. Reducing uncertainty in the design calculations enables operators to continue operating their assets safely and with improved confidence.
FlexIQ has established a step change for industry technology and has been recently successfully deployed on two offloading risers in West Africa with a total inspection length of 2.5km.
Field experience on how FlexIQ has been used to re-evaluate the design life and determine the suitability for life extension of the risers will be presented.
The analysis predicted safe and reliable operation of the assets well beyond the original design life, provided the asset management recommendations made within the study are adhered to.
The Pathfinder foam geometry tool was originally developed as a low risk, cost effective soft bodied tool for measuring pipeline geometry. In recent years through continuous improvement the Pathfinder has developed into a recognised, well established technology with an extensive track record for pipeline proving, internal diameter profiling, bend measurement reduced bore location, debris mapping and assessment.
Pathfinder is currently being used by service companies and operators a like on a regular basis to support a wide range of pipeline construction, commissioning and operational workscopes around the world.
This paper sets out to demonstrate the functionality of the Pathfinder and the extent of its operational capability through several high level case studies.
Innovative design developments and current trials on further improving minimum bore negotiation capabilities are also introduced.
Pipeline Innovations’ changing approach to pipeline pigging data acquisition has led to further development of the Pathfinder electronics operating platform to provide a range of standalone pipeline data loggers. The specifications and operational benefits of which are also discussed as part of the technical paper.
The exhibition is a great opportunity to network and find out about what's new in the industry. You can visit it during the seminar breaks.
The layout of the exhibition area and list of exhibitors is available here.
* Early bird bookings before 5th October.
† YPP Member rate subject to availability.
To find out more details, please e-mail