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Flare Workspace in the Symmetry Platform

All-inclusive relief system analysis with integrated PSV, network header and stack design 

Symmetry is a process software platform that empowers all aspects of your models from reservoir to product distribution.

The Symmetry platform uniquely integrates the modeling of fields, pipe networks, process plants and flare systems, providing an unprecedented level of collaboration and cooperation allowing teams to seamlessly transfer knowledge and expertise, maximizing the total value of the asset. 

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The Symmetry platform delivers the new Flare workspace; tailored to mirror real engineering workflows with a complete set of flare & relief system design tools. 

Scenario management is available to verify the safety of the entire relief system across all possible relieving scenarios. Users have access to simulation models of the header network, relief devices with inlet and discharge piping, and even process equipment. All components can be modelled standalone or in one complete model, designed and/or rated to various levels of detail. 

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Figure 1. Symmetry platform being used for all aspects of flare system design and rating.

 

The Flare workspace in the Symmetry platform offers engineers a choice of tools within the same environment so that they don’t have to compromise between the effectiveness of using the best tool and the efficiency of keeping all models and data in the same environment.

Any model can be solved in steady-state or dynamics. The steady-state solver performs worst-case analysis of the bulk of scenarios to quickly identify bottleneck issues. 

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Figure 2. Steady-state analysis of inlet piping constraints. An extended inlet pipe leads to greater non-recoverable losses and violates the 3% maximum limit.

 

Critical scenarios can then be solved in dynamics, starting from the steady-state model and adding details and scheduled events for rigorous time-based analysis. Taking into account system volumes and staggered relief times makes for a more realistic analysis, and in many cases will result in conditions being farther from constraint violation or requiring less drastic (and expensive) upgrades to meet safety criteria. 

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Figure 3. Dynamic analysis of the impact of inlet length on valve cycle time and risk of chatter.

The combined power of both tools helps users to evaluate all possibilities and invest in rigorous analysis where it matters.

The Flare workspace builds upon the legacy of VMGSim technology, and the enhanced user experience of the Symmetry platform helps users get the most out of their flare models. Scenario conditions can be specified from the relevant Process or Pipe models within the same environment and take advantage of a consistent fluid characterization. Rigorous thermodynamics enables users to assess the risk of hazards like hydrate and solid formation. Plant-wide emission monitoring, case studies, and reporting are just a few of the many tools available in the Symmetry platform that enable asset-wide insight and analysis. 

Learn more about the Symmetry platform.

Angela Solano, Research and Development Engineer, VMG Calgary.

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