PIGGING PRODUCTS & SERVICES ASSOCIATION
This year the seminar will be held online.
Register now and we will email you a link to the meetings and other details on how to access the webinar closer to the seminar date.
Tuesday 9th and Wednesday 10th November 2021
The seminar presentations will be given by PPSA members, all experts in their own field.
Tracking is based on analysis of induced pressure waves within the conduit. Data such as pig position, velocity and estimated time of arrival can be calculated. The method discussed has recently been successfully used to track pipeline pig location on a large diameter pipeline project in the middle east. The pipeline had a stuck pig from recent commissioning activities. The location of the pig was unknown. It was also unknown if the pig was stuck or still moving slowly.
Pressure wave technology was mobilised to the site. An initial analysis confirmed the location of the pig. A further analysis a short time later confirmed the pig was not moving. A remediation plan was put in place to retrieve the pig and pressure wave technology was used to track the location of the pig during its recovery.
Through successive testing, the live pig velocity was calculated and from this an estimated time of pig arrival. The pig arrived in the pig receiver within minutes of the predicted arrival time. Live tracking provided confidence to the pipeline operator that the remediation methods were going to be successful and allowed optimisation of subsequent commissioning activities.
Many operators are currently in the initial stages of investigating possibilities to build dedicated hydrogen pipelines or convert existing natural gas pipelines to hydrogen. With its innovative inspection technologies, supported by world class Integrity Engineering, ROSEN is well on its way supporting the industry with these challenges. This will be highlighted by a use case containing multiple ROSEN inspections performed in 100% hydrogen under operational conditions.
In parallel with the need for hydrogen pipelines, there is a re-emergence for the requirement to transport CO2. This time, the requirement is related to (Blue) hydrogen production as a clean energy source. The transportation of carbon dioxide (CO2) within carbon steel pipelines for the purposes of carbon capture, usage and storage (CCUS) has been a topic of interest for a number of years, but it is fair to say that it has not taken off to the extent anticipated ten years ago. This paper reviews the re-emergence of the requirement for CO2 transportation in carbon steel pipelines and looks at the related integrity challenges associated with CO2 in a hydrogen production environment. We will identify threats related to downhole pipework for CO2 storage, transportation of CO2 and hydrogen as input for a holistic Integrity Framework.
Cloud-based software platforms which send and receive data and images from ground-based AGMs, signallers, tracking equipment and personnel can provide near-real-time pig positions and status during pigging operations to users.
Pipeline pigging operations created in such online platforms have a high degree of reusability – permanently capturing man-hour investments in all aspects of the survey and run process providing strong ROI.
Safety is enhanced as the number of personnel required to be present on a pipeline is reduced. Pig passage events are automatically transmitted to the cloud 24 hours a day and pigging activity can be monitored and commented on from anywhere.
Managers can coordinate and monitor multiple jobs simultaneously, further reducing the number of man-hours consumed by a single run.
Safety is increased as stakeholders can receive instant notification of changes to a project as well as potentially hazardous developments such as inclement weather, nearby lightning strikes, heat/cold/UV alerts and more.
Run virtualization and recording provide unique techniques unavailable to traditional pigging operations. One example: should a pig become stuck, operators have the unique ability to “rewind” a run’s state to the precise moment when pressures spiked, getting a snapshot of the pipeline at that instant.
Permanent database storage of completed runs allows for easy reference to work done previously, and also provides for rapid comparisons of multiple runs year-over-year and can lead operators to identify developing problems on their lines.
Enabling a pipeline pig passage to be recorded (even without functioning transmitters) and the data stored internally as well as confirmation of the movement being disseminated via text and email without any human intervention.
AGM’s are placed in pre-agreed locations prior to pig launch where they lay idle until remotely confirming passage. This reduces costs, increases safety of people and gives better locational information of the pig in the line in case of any hang up in the line.
These movements are automatically added to a web app showing the progress of the tool to, from and in-between markers. Calculating real time ETA and speed.
This paper will develop upon that paper and explore a selection of interesting, practical applications of ART with a specific focus on the evergreen topic of challenging/unpiggable pipelines.
The inherent characteristics of ART permit inspection of pipelines that may have proven unpiggable with conventional techniques. Specific challenges this paper will cover include multi-diameter pipelines; Bi-Di requirements and pipelines susceptible to wax. NDT Global will explore the challenges, solutions, and outcomes of a variety of actual projects to cover these specific challenges.
This paper describes an approach to combining bending strain, measured by IMU tool, with axial strain, measured by the AXISS™ tool, in order to determine total longitudinal strain demand. The total strain demand can be determined at the girth welds in the pipeline, and at anomalies, such as metal loss, dents, etc, reported by magnetic, ultrasound and deformation inspections. The strain demand is compared with the strain capacity to determine whether remedial action is required. The tensile and compressive strain capacity will not be constant along the length of a pipeline and is influenced by several factors including material properties and imperfections in the girth welds, corrosion and geometric anomalies such as dents, buckles, wrinkles. A case study is included in the paper showing how the axial and bending strain components are combined to determine the longitudinal strain demand and an approach for evaluating the strain capacity to assess the integrity of the pipeline.
Our company has successfully developed an in-line inspection tool that does not need to be driven by the medium in the pipeline and can realize autonomous crawling. The self-crawling detector adds a driving section based on traditional in-line inspection tools. The electric drive section carries different sensor modules to realize multifunctional detection of newly-built pipelines. For example, it can realize deformation detection, crack detection, centerline mapping, stress detection, etc. The cumulative inspection mileage of 762mm, 813mm, 1016mm pipelines has been over 1,000 kilometers, which has a good inspection application effect.
The self-crawling new pipeline detector provides a new detection method for pipeline inspection before commissioning.
This online seminar is free of charge for both members and non-members.
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