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Pipeline and Subsea Studies

EPCONSULT has all-round industry expertise in the engineering, risk assessment and economics associated with onshore and offshore pipelines and subsea engineering development projects.

As the pipeline industry continue to stretch the technology boundary into harsher project environments, longer onshore developments, deeper offshore developments, increasing challenging fluids and increasingly politically instable cross-border frontiers, EPCONSULT is specialized at providing expert advice and engineering studies for our clients.

Intelligent Engineering

Offshore Pipelines and Risers

EPCONSULT has vast experience in large scale pipeline engineering projects. We are one of the few consultancies that have the full appreciation of all the aspects involved in selecting and executing a successful offshore pipeline project. We have worked on some of the most challenging pipeline projects in the world such as Shell Malampaya in the Philippines, BP Mardi Gras Transportation Project in the Gulf of Mexico, Medgaz in the Mediterranean and Dolphin in the Gulf of Arabia.

EPCONSULT is specialist at all aspects associated with pipeline and riser engineering, that involves but is not limited to:

  • Pipeline feasibility studies and conceptual development for new projects including liaison with authorities
  • Advice and consultancy on pipeline route selection and dealings with third parties and developing base reconnaissance surveys with specialist survey companies
  • Assessment of health, safety and environmental (HSE) project requirements and execution of studies to assess and minimize the environmental impact (EIS, EIA) associated with the project
  • Material selection for linepipe including selection of standard carbon steel linepipe, exotic materials CRA lined or clad pipe of e.g. Inconel, Incoloy, etc.
  • Mechanical design including stress-strain and fatigue analysis associated with pipelines and risers. This involves analysis of free spans, loads due to seismic ground shaking, mass gravity flows and turbidity current loadings, fault crossings, lateral and upheaval buckling, etc. Pipeline installation analysis, design of buckle arrestors and conducting of wall thickness optimization studies. It also involves the stress analysis and fatigue analysis (VIV etc.) of steel catenary risers (SCR), flexible risers, top tension risers and rigid risers.
  • Corrosion assessment of various types of corrosion processes and definition of anti-corrosion design against internal as well as external corrosion
  • Process and flow assurance for pipeline systems including the analysis of best internal flow coatings is also within our specialist services
  • Risk assessment and Quantitative Risk Analysis (QRA) is one of our specialist offerings
  • Business risk assessment including cross-border risk aversion strategy advice
  • Pre-commissioning and commissioning services including optimization of leak and strength tests, pipeline drying, tie-in studies, water disposal, etc.
  • Pipeline integrity management as presented in Asset Integrity Management

Onshore Pipelines

Onshore pipeline projects are typically large and critical investments for the client, hence it is crucial to establish a sound foundation and review optional conceptual developments before embarking on heavy man-hour required engineering design.

EPCONSULT is expert in providing services to onshore pipeline projects including:

  • Pipeline feasibility studies and conceptual development for new projects
  • Advice and consultancy on route selection and dealings with authorities and local regulatory requirements
  • Assessment of health, safety and environmental (HSE) project requirements and execution of studies to e.g. assess and minimize the environmental impacts (EIS, EIA) associated with the project
  • Pipeline project planning and client support to successful execution of projects
  • Mechanical design of pipelines, including materials selection of standard carbon steel pipelines or exotic materials CRA lined or clad pipe of e.g. Inconel, Incoloy, etc. Stress analysis including wall thickness, buckling analysis and other finite element analyses are also performed
  • Corrosion assessment of various types of corrosion processes and definition of anti-corrosion design against internal as well as external corrosion
  • Process and flow assurance of for pipeline systems is also within our specialist services
  • Risk assessment and Quantitative Risk Analysis (QRA) is one of our specialist offerings
  • Business risk assessment including cross-border risk aversion strategy advice
  • Pipeline integrity management as presented in Asset Integrity Management

At the early stage of the BP BTC Pipeline project EPCONSULT worked with J P Kenny and provided input to a combined Technical and Financial analysis, screening optional pipeline construction strategies.

Subsea Engineering Studies

EPCONSULT is expert in subsea engineering projects. We typically get involved at the early stage of field development planning.

For Total E&P we carried out conceptual design of a seabed flowline system connecting drilling centre manifolds to the FPSO for the Usan OPL-222 development project off Nigeria.

We carried out specialist studies for the Shell Goldeneye tie-back project at the conceptual engineering stage and we supported Statoil's Kristin Project with HP/HT Subsea HIPPS analyses.

EPCONSULT has developed a Tie-Back Methodology Work Practice. The work practice is in the form of a generalized tie-back project and is an efficient guideline and checklist that ensures that clients get value for money and that time is spent intelligently.

Our services in subsea engineering studies comprise:

  • Field layout planning and optimization
  • Well head and Xmas tree selection and planning
  • Templates and manifolds layout and design
  • Flowlines selection and optimization including engineering, risk and costs optimization taking account for materials selection, isolation, pipe-in-pipe solutions, protection, bundle selection etc.
  • Subsea controls strategy, integration with existing systems, platform instrumentation integration, umbilical selection, SSIV, HIPPS, pressure and flow control valves, etc.
  • Transient process and flow assurance studies

Please contact us for a discussion of how we may be able to help you with any aspect of your pipeline and subsea projects.


 
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