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August 9, 2026ProcessesOpen Access

Techno-Economic Investigation of CO2 Injection Schemes for Geological Carbon Storage in Saline Aquifers

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Authors

JBJose A. BenavidesBDBirol Dindoruk

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Overview

Randomized trial evaluates CO2 injection strategies for improved efficiency in saline aquifers, suggesting enhanced economic viability.

Key Points

  • This research aims to assess the technical and economic impacts of various CO2 injection techniques in saline aquifers.
  • Evaluated CO2 injection strategies: intermittent CO2 injection (ICI), water-alternating-CO2 (WA–CO2), carbonated water injection (CWI), and carbonated water-alternating-CO2 (CWA–CO2).
  • Incorporated reservoir data into three-dimensional compositional simulations using the Sleipner benchmark model.
  • Conducted Monte Carlo uncertainty and sensitivity analyses for techno-economic performance evaluation.
  • ICI increased dissolution trapping by up to 20% and reduced average reservoir pressure by up to 10%.
  • WA–CO2 achieved optimal technical and economic performance, keeping storage costs within 3.6–3.7% of the continuous injection base case.
  • Monte Carlo analysis revealed Section 45Q tax credit and discount rate as primary economic drivers.

Cite This Study

Benavides et al. (2026) studied this question.

synapsesocial.com/papers/6a782d6e2e1896536c8407fbhttps://doi.org/10.3390/pr14162542
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