Sour Gas plant inlet valve replacement

Project Background:

• Midstream sour gas plant had undersized, poorly selected inlet control valves in place
• Sand in the inlet coupled with undersized piping led to major erosion issues on valving and pipe
• Minimal space to work with for new larger piping and valves

Solution & Execution:

• Piping designer as-built the existing system from old isometrics to create a 3D model for greater accuracy and review.
  
• Multiple design options were generated and reviewed with operations and construction to ensure optimal functionality. 
  
• Project manager procured materials.  Cost savings (approx. 100k) were realized by reviewing materials and different fitting options, while ensuring delivery dates could be met to install for shutdown.
  
• Stress analysis and structural group collaborated to support new valves and piping off of existing skid with minimal space.
  
• Conference calls with construction contractor to review the construction package and ensure scope is completely understood and build-able.
  
• On site CM during shut down to provide construction support.

Final Results:

• Piping and valving were installed during a 14 hour shutdown
• New larger piping size coupled with the symmetrical split flow design will minimize erosion on both the valves and the piping
• Full access on the inlet platform was maintained with the upgrade