In the past few decades, there have been many numerical studies on scour around offshore pipelines, most of which concern two-dimensional setups, with pipeline infinitely long and flow perpendicular to pipeline. Based Ansys FLUENT solver, this study establishes a tool three-dimensional pipelines finite lengths. The user-defined functions are written calculate sediment transport rate, update bed...

With the offshore development off the Newfoundland and Labrador coast, the environment becomes the key factor to the production. Each year hundreds of icebergs depart from the Greenland and drift towards the Newfoundland and Labrador. Icebergs in the vicinity of the offshore structure have a potential of causing production downtime, scouring the pipeline on the sea floor, and destroy the infras...

THE PAPER PRESENTS THE RESULTS OF AN ANALYSIS FOCUSING ON the evaluation of large-scale oil and gas projects under market uncertainty and flexibility in engineering design. Keppel Offshore and Marine Technology Centre (KOMTech) has developed a proprietary Pre-cooled Nitrogen Expander (PreNex) technology as a solution for offshore associated gas applications for small-to-medium scale capacity (~...

Control solutions for eliminating severe riser-induced slugs in offshore oil & gas pipeline installations are key topics in offshore Exploration and Production (E&P) processes. This study describes the identification, analysis and control of a low-dimensional control-oriented model of a lab-scaled slug testing facility. The model is analyzed and used for anti-slug control development for both l...

Peter Bauer, ABB Automation, USA, and Billy Mann, West African Gas Pipeline Company Ltd, discuss the importance of SCADA system integrity to the West African gas pipeline. Gas operators are finding the need for more and more advanced technology to keep up with their data collection and processing requirements. This includes data from smart field devices, increasingly sophisticated control syste...

background economic consequence analysis is vital for recognizing pipeline comprehensive risk analysis and emergency response planning. objectives the purpose of this study was to estimate economic loss due to fire and explosion in petrochemical feed and product pipelines. materials and methods the present study which performed on 47 pipelines of a petrochemical special zone, pertinent pipeline...

Ever demanding business and operating conditions have highlighted the need for significant improvements in the reliability of high duty mechanical seals. With platform operators under pressure to minimize deferred oil production due to equipment failure, there has been, in recent years, a much closer link between user and vendor to jointly develop solutions to satisfy the business requirements....

Nowadays, the numerical analysis of submarine pipelines offshore oil and gas industry is a big challenge in engineering design. A simple, fast accurate tool proposed this article based on macroelement concept. The novel within framework hypoplasticity can consider static monotonic combined (multi-directional) loads for shallow embedded clay. incremental nonlinear constitutive formulas are defin...

Anti-slug control applied to two-phase flow provides a very challenging and important application for feedback control. It is important because it allows for operation that would otherwise be impossible, and challenging because of the presence of both RHP-poles and RHP-zeros. To conduct experiments on pipeline-riser anti-slug control, a small-scale slug-loop has been build. The loop has been mo...