Detailed Design Construction & Startup Support

Project Background:

• Midstream sour gas plant needed egress for their acid gas as the current egress was no longer feasible 
• Acid Gas Injection well drilled near the facility to facilitate the new egress
• Facilities (new and modification of existing) and pipelines were designed/built to support new egress

Solution & Execution:

• Determine the water content, composition and temperatures ranges for the acid gas. This was highly variable and caused the greatest complication in the design
• Based on the design conditions, determine what kind of conditioning would be required for the acid gas
• Due to the length of pipeline and potential low flow rate of the acid gas, glycol dehydration was selected to condition the gas
• Pipeline and wellsite design along with required regulatory support 
• Major equipment and severe service acid gas valves were bid, evaluated and ordered
• Complete mechanical tie-in package was developed, bid, evaluated and awarded for execution during a scheduled plant turnaround
• Class III cost estimate produced. Built up from construction quantities and solid equipment bids. This secured full project funding
• Existing equipment modifications (Amine, Compression, etc.) designed

Final Results:

• Project was completed on budget, which included some unforeseen existing facility issues that were resolved as part of the original project budget
• Acid Gas injection system works as designed. Valor assisted with some operational issues during start-up to ensure operation was working effectively