Riser Analysis: an Integral Part of Sub-sea Analysis Services Provided

Riser Analysis: an Integral Part of Sub-sea Analysis Services Provided

[Posted on December 26th, by Bill Stewart]

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Why Sub-sea Engineering Requires Exceptional Riser Analysis Technologies

Sub-sea engineering has extremely high financial stakes as it is still a relatively young discipline. Riser analysis presents a clearer understanding of principle parameters influencing riser behavior within the sub-sea riser design’s mode of influence. Finding clear procedures for the analysis of tricky problems like issues surrounding risers of multi-barrier anisotropic materials that are often subject to varying pressures, temperatures, and fluids; are key aspects of the expertise of Stewart Technology Associates.

Any conduit that is providing temporary extension for a sub-sea oil well for on-surface type drilling facilities, is called a drilling riser. These risers are divided into two categories.

  • Tieback drilling risers which are used with surface blowout preventers, (BOP), and deployed from spar or tension leg fixed platforms, which are very stable.
  • Marine drilling risers, flexible risers, used with sub-sea blowout preventers, (BOP), used by floating drilling vessels.

The confusing aspects of riser design require good qualitative explanations. The means of creating reliable analysis, both before and after running sophisticated FE riser analysis programs, can include using Excel spreadsheets for simplified riser analysis, 2H offshore riser systems analysis, fatigue analysis, and sub-sea integrity management programs, with riser and conductor engineering designs.

Our company, Stewart Technology Associates, can also assist with understanding counter-intuitive buoyant pipe mechanics and fluid-filled columns. Our marine engineering software products will provide on-bottom stability analysis and static pipe-lay analysis programs, and more. We use many software applications, many we have developed and others we market and support for our vendors, to ensure diversified and comprehensive reports among other sub-sea engineering analysis.

Risers are the most critical product of an offshore pipeline project. Needed to withstand extremely negative service conditions and dynamic loads, our dependable services at Stewart Technology Associates help deep-sea engineering crews who are required to reach reservoirs in increasingly deeper waters, subjecting risers to greater fatigue loads, and more challenging tolerances, environmental conditions, and mechanical properties.

Your team can count on our professional staff for answers to your difficult design and analysis questions. We have decades of experience in an extensive variety of marine industry and offshore services, from risk assessments to marine simulators and training. We use state-of-the-art software like Orcaflex for riser design and analysis, and we are also a U.S. agent for Orcina Software, including Orcalay for pipe-laying analysis, and Orcabend for bend-stiffener design and analysis.

Our proven dedication to excellence and safety since 1986 is a testament to our proficiency in providing proprietary software and designs for complex marine simulators for training emergency crews on lift-boats, semi-submersibles and jack-ups.  Also, Stewart Technology Associates has the ability to effectively help our U.S. marine clients with CE marking in conformance with the 98/37/EC Machinery Directive, as well as a wide-range of disciplines to assist major oil and engineering clients globally.

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