Carbon Capture & Subsurface Sequestration

Client: Confidential – Energy Transition Consortium, North America

Challenge

Unlike traditional oil and gas developments, CCUS (Carbon Capture, Utilization & Storage) projects involve the inverse application of reservoir and surface engineering—moving CO₂ from near-atmospheric pressure at the surface to deep geological sinks exceeding 2,000 PSI. The technical challenge lay in compression design, material integrity, and predictive reservoir behavior under injection—all while aligning with evolving regulatory frameworks.

Solution

Avantex led the multidisciplinary design and concept development across the following fronts:

Compression Design: Engineered a fit-for-purpose system capable of handling relatively low CO₂ volumes (15–25 MMCFD) at extreme pressure differentials.
Corrosion Mitigation: Specified dry CO₂ handling systems and corrosion-resistant materials (e.g. exotic alloys) for wells and pipelines to prevent degradation when CO₂ contacts water.
Subsurface Modeling: Applied reverse-reservoir engineering to predict CO₂ behavior and containment, repurposing traditional hydrocarbon models for storage forecasting.
Regulatory Navigation: Interfaced closely with environmental authorities to align design timelines with permitting requirements.

Added Value

Delivered all concept development and technical design on schedule and under budget.
Maintained alignment with regulatory milestones to keep project timelines intact.
Achieved a zero-incident safety record throughout the 4-year development phase.
Mentored and upskilled contractors to build long-term CCUS delivery capacity.

Key Metrics

Duration 4 years (end-to-end concept development and design)

Volume Target 15–25 MMCFD of CO₂

Injection Pressure >2,000 PSI

Safety Record 0 incidents or lost-time accidents

Regulatory Compliance Delivered full project concept design in coordination with oversight bodies