Evaluating Acid Gas Disposal and CCS for Gas Processing Plant
In 2025, Sproule ERCE assessed both acid gas injection (AGI) and carbon capture and storage (CCS) options at an Alberta Gas Plant. The work involved a detailed evaluation of geological storage capacity, injectivity, surface constraints, and regulatory requirements within a defined area of interest. The team applied a phased, data-driven approach covering geoscience screening, well review, volumetric and injectivity modelling, and regulatory pathway analysis. The interdisciplinary team provided clear recommendations supporting long-term CO₂ and acid gas disposal solutions aligned with environmental and regulatory standards.
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Project Highlights
- Completed detailed surface and subsurface data review within Area of Interest
- Assess injectivity and volumetrics of potential disposal sites
- Ranked potential disposal sites based on risk, feasibility, and regulations
- Outline a comprehensive regulatory application for disposal method approval
Challenges:
Complex Technical Assessment: Evaluating acid gas disposal requires a detailed understanding of underground geology and injection system performance. Gathering accurate geological and well data can be time-consuming, yet it is critical for risk evaluation. Strict regulations add another layer of complexity to the project.
Challenging Regulatory Environment: Navigating local environmental and safety standards requires careful screening and documentation. Meeting all requirements promptly is key to
securing approval on time. Stakeholder concerns around safety
and environmental impact must be addressed effectively.
Data Availability Constraints: Reliable surface and subsurface data are essential but can be incomplete or inconsistent. This limits the accuracy of storage capacity estimation and risk analysis. Ensuring quality data under tight schedules is a constant challenge.
Challenging Regulatory Environment: Navigating local environmental and safety standards requires careful screening and documentation. Meeting all requirements promptly is key to
securing approval on time. Stakeholder concerns around safety
and environmental impact must be addressed effectively.
Data Availability Constraints: Reliable surface and subsurface data are essential but can be incomplete or inconsistent. This limits the accuracy of storage capacity estimation and risk analysis. Ensuring quality data under tight schedules is a constant challenge.
Solutions:
Comprehensive Data Review: Conducted a detailed evaluation of surface and subsurface data to thoroughly understand geological storage options and site conditions within the defined area of interest.
Rigorous Geoscience Screening and Modelling: Applied volumetric and injectivity modelling alongside reservoir screening to assess storage potential, reservoir quality, and injection feasibility for acid gas and CO2 disposal.
Legacy Well Review: Assessed well activity within the area of interest to de-risk legacy wells, identify opportunities for well repurposing, and provide options for storage sites with minimal risk related to legacy wellbores.
Interdisciplinary Team Collaboration: Geologists, reservoir engineers, carbon management experts, and financial specialists worked closely together. This holistic approach ensured technical accuracy and commercial feasibility. Regular client engagement kept recommendations aligned with project objectives.
Rigorous Geoscience Screening and Modelling: Applied volumetric and injectivity modelling alongside reservoir screening to assess storage potential, reservoir quality, and injection feasibility for acid gas and CO2 disposal.
Legacy Well Review: Assessed well activity within the area of interest to de-risk legacy wells, identify opportunities for well repurposing, and provide options for storage sites with minimal risk related to legacy wellbores.
Interdisciplinary Team Collaboration: Geologists, reservoir engineers, carbon management experts, and financial specialists worked closely together. This holistic approach ensured technical accuracy and commercial feasibility. Regular client engagement kept recommendations aligned with project objectives.
Values:
De-risked Site Selection: Through comprehensive evaluation of subsurface geology, legacy wellbore conditions, and potential leakage pathways, Sproule ERCE significantly reduced uncertainty and risk. This enabled a clear, confident path forward for selecting injection sites and designing safe, effective acid gas and CO2 disposal operations.
Reduced Decision Uncertainty: Detailed analysis and transparent ranking of disposal options provided explicit insights into risks and benefits, empowering informed decision-making with confidence. This clarity supports robust strategic planning for acid gas injection and carbon capture and storage deployment.
Enhanced Regulatory Readiness: Early-stage screening and thorough preparation of regulatory outline accelerated compliance processes. This proactive approach minimized delays, facilitating smoother engagement with authorities and increasing the likelihood of timely project approvals.
Reduced Decision Uncertainty: Detailed analysis and transparent ranking of disposal options provided explicit insights into risks and benefits, empowering informed decision-making with confidence. This clarity supports robust strategic planning for acid gas injection and carbon capture and storage deployment.
Enhanced Regulatory Readiness: Early-stage screening and thorough preparation of regulatory outline accelerated compliance processes. This proactive approach minimized delays, facilitating smoother engagement with authorities and increasing the likelihood of timely project approvals.