FEED - Acid Gas Injection

  Project Background:

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

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, acid gas dehydration was selected to condition the gas
• Pipeline design mostly complete, PLA acquired and land construction package complete as part of the FEED
• Major equipment and acid gas valves were bid, evaluated and ready to order
• Complete mechanical tie-in package was developed, bid and evaluated for execution at the next plant turn-around
• Class III cost estimate produced. Built up from construction quantities and solid equipment bids
• Existing equipment modifications (Amine, Compression, etc.) determined

Final Results:

• FEED design fully vetted with all client stakeholders ensuring all parties would work together to get the project done effectively
• Detailed FEED report produced for the client to be able to acquire full project funding