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Safely repairing subsea flanges on flexible flowlines with a flexible bridging jumper structure

Safely repairing subsea flanges on flexible flowlines with a flexible bridging jumper structure
Safely repairing subsea flanges on flexible flowlines with a flexible bridging jumper structure
As offshore pipelines age, the oil and gas industry must properly maintain equipment to prevent leaks. In subsea flowlines, leaks sometimes originate from aging flanges. These flanges must be replaced. Historically, replacing the flange has required a lot of time. Different costly approaches are available, from subsea reparations to flowline...

Lessons Learned on 20 years of challenges to internal corrosion protection of subsea pipelines-corrosion inhibitor or pH stabilization?

Lessons Learned on 20 years of challenges to internal corrosion protection of subsea pipelines-corrosion inhibitor or pH stabilization?
Lessons Learned on 20 years of challenges to internal corrosion protection of subsea pipelines-corrosion inhibitor or pH stabilization?
The three phase fluid of the massive South Pars reservoir under the Persian Gulf, is transmitted 100Km to onshore facilities via numerous 32” API 5L pipelines. The wet sour fluid cont ains 0.5 mol% of H2S and 1.7 mol% of CO2 which forms a hostile environment to carbon steel. Hence, as per form er laboratory researches at design stag e in about 20...

Hydrogen in Pipelines

Hydrogen in Pipelines
Hydrogen in Pipelines
Increasing the use of renewable energy requires new ap proaches to energy storage and energy transp ort. One of these approaches is to st ore and transport hydrogen in natural gas pip eline networks. Blending hydrogen into the existing natural gas pipeline network appears to be a strategy for storing and delivering renewable energy to markets...

A Holistic Approach to Achieve Excellence in Pipeline Security Using „BISMA” & “SOLIDS”

A Holistic Approach to Achieve Excellence in Pipeline Security Using „BISMA” & “SOLIDS”
A Holistic Approach to Achieve Excellence in Pipeline Security Using „BISMA” & “SOLIDS”
One of subsidiaries of Pertamina is Pertamina Gas which manage special task in operating crude oil transportation 12,000 BOPD. In the operation still occur illegal tapping activities and risk of pipeline product theft is a major concern to industry. In 2012, oil thieves drilled 748 illegal taps or an average 2 times every day. Losses from...

Multidisciplinary landslide assessment – a systematic and practicable approach for pipeline projects

Multidisciplinary landslide assessment – a systematic and practicable approach for pipeline projects
Multidisciplinary landslide assessment – a systematic and practicable approach for pipeline projects
Ground movements, with the clear majority being landslides, hav e caused several pipeline incidents worldwide in recent years. This, and experiences obtained from major engineering projects, shows that a systematic approach for the assessment of landslides is essential. A best-practice multidisciplinary workflow, based on detailed terrain analyses...

Design of tanks’ foundation and onshore pipeline against earthquakerelated geohazards in a coastal area in Northern Greece

Design of tanks’ foundation and onshore pipeline against earthquakerelated geohazards in a coastal area in Northern Greece
Design of tanks’ foundation and onshore pipeline against earthquakerelated geohazards in a coastal area in Northern Greece
The design of coastal oil and gasol ine tanks along with interconnected onshore and offshore pipeli ne in an area that is char acterized by very loose to loose gr anular and very soft to soft clayey soils, high water table and moderate or high seismicity will be much more demanding and challenging, since various issues are directly or indirectly...

Digitalization Projects for the Oil and Gas Industry

Digitalization Projects for the Oil and Gas Industry
Digitalization Projects for the Oil and Gas Industry
A new wave of digitalization is made possible by the combination of exhaustive int ernet access, computing power and storage capacity, artificial intelligence, big dat a, algorithmic autonomous decision making and r obotics. This ever accelerating digitalization is changing our life and the way we make business m ore than any other (r)evolution...

Overcoming the Challenges and Increasing Value in Fiber Optic Monitoring

Overcoming the Challenges and Increasing Value in Fiber Optic Monitoring
Overcoming the Challenges and Increasing Value in Fiber Optic Monitoring
Distributed fiber optic sensing has been gaining significant momentum in pipeline industry adoption. The primary application of this technology has been in p reventative leak detection, but intelligent new applications such as pipeline flow rate monitoring are now emerging and promise to deliver extra value to the pipeline operators. We present a...

Surge protection for insulating joints – suitable spark gaps and evaluation of the installation

Surge protection for insulating joints – suitable spark gaps and evaluation of the installation
Surge protection for insulating joints – suitable spark gaps and evaluation of the installation
Insulating joints are used for the electrical separation of pipeline systems or for dividing pipelines that are affected by high voltages into sections. The electrical isolation of cathodically protected systems is maintained until the dielectric strength/ flashover strength of the insulating joint is reached. Overvoltages which occur as a result...

Maximising Accuracy Of MFL Pipeline Inspection

Maximising Accuracy Of MFL Pipeline Inspection
Maximising Accuracy Of MFL Pipeline Inspection
There have been significant advances in magnetic flux leakag e (MFL) in-line inspection (ILI) technologies in recent years. These have led to imp rovements in Probability of Detection (POD), Probability of Ide ntification (POI) and Probability of Sizing (POS). Whilst often the main focus of these advancements is the inspection vehicle itself, the...

Editorial ptj 3-2020

ptj-3-2020 Editorial
ptj-3-2020 Editorial
With this 3rd edition of the ptj in 2020 we are publishing 10 more articles from the 15th Pipeline Technology Conference that had to be restructured into a virtual event on short notice earlier this year. The global pandemic is pushing us all to speed up digital transformation. For this reason, you could now see different kinds of online events and...

Pipeline Technology Journal 3/2020

Issue 3/2020 of ptj is the third special edition for the ptc - Pipeline Technology Conference

For the third time the ptj will feature all papers from the Pipeline Technology Conference.

On its 92 pages this issue will discuss several topics. From maximizing the accuracy of pipeline inspection to the safe repair of subsea flanges on flexible flowlines. This issue contains 10 papers from different companies.

Pipeline Technology Journal 3/2020

Prediction of Leak Mass Rate in High-Pressure Gas Pipeline

Prediction of Leak Mass Rate in High-Pressure Gas Pipeline
Prediction of Leak Mass Rate in High-Pressure Gas Pipeline
Gas pipeline leakage poses great threat to the environment pollution and system security. The gas leak mass rate is a key index in the assessment of risk level during pipeline leakage. In this study, compressed air flow in a high-pressure pipeline with leakage is considered, and the leak mass rate is investigated experimentally and numerically...

GRP Piping Failures

GRP Piping Failures
GRP Piping Failures
Glass-fibre Reinforced Plastic pipe (GRP) systems, also known as FRP pipe systems, have been succ essful in the world’s markets for more than 50 years. During this time, they have developed into a modern pipe material that is predominantly convincing thanks to its lightweight, corrosion resistance, a smooth inner surface, and easy installation...

Real-time remote monitoring and risk management of oil & gas facilities subjected to natural hazards

Real-time remote monitoring and risk management of oil & gas facilities subjected to natural hazards
Real-time remote monitoring and risk management of oil & gas facilities subjected to natural hazards
The term “natural hazard” is used to describe any natural pheno menon that might have a negative effect on humans and/or the environment. The natural hazards can be classified into two broad categorie s: geological and meteorological (e.g. landslides, volcanic eruptions, heavy storms, floods, droughts and high ambient temperatures). Furthermore, it...

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