地下CO2貯留と関連リスクに関する包括的レビュー
A comprehensive review of underground CO2 storage and associated risks (原題)
Bomi Kim, Yongho Seong, Qingquan Liu, Kun Sang Lee
🤖 gxceed AI 要約
日本語
本レビューは、深部塩水帯水層・枯渇油ガス層・採掘不能炭層・玄武岩層といったCO2地中貯留層を容量・圧入性・封じ込め性・技術成熟度で比較し、構造・残留・溶解・鉱物トラップの各メカニズムを整理する。CSLFの理論–有効–実効–整合容量フレームワークに基づき容量評価手法と不確実性を批判的に検討し、SleipnerやCarbfixなど7つの実証プロジェクトの実践を例示する。貯留リスクはSPR・HFC統合フレームで圧入・操業・圧入後段階にわたり整理され、モニタリング技術と緩和策を対応づける。THMC連成モデルやデジタルツイン、機械学習サロゲート、AIモニタリングを不確実性低減の新手法として論じる。
English
This review compares major CO2 storage formations (saline aquifers, depleted reservoirs, coal seams, basalt) on capacity, injectivity, containment and maturity, and examines structural, residual, solubility and mineral trapping. It critically evaluates capacity-assessment methods within the CSLF framework and grounds discussion in seven CCS projects (Sleipner, In Salah, Quest, Decatur, Otway, Carbfix, Gorgon). Storage risks are organized via integrated SPR and HFC frameworks across injection, operational and post-injection stages, linking monitoring and mitigation to specific risks. Emerging tools—THMC modeling, digital twins, ML surrogates and AI-based monitoring—are highlighted for reducing uncertainty.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本はCCSをGX推進の重点技術と位置づけ、苫小牧での実証やJOGMEC主導の適地調査を進める。本レビューのSPR/HFCリスク枠組みとモニタリング手法は、国内CCS事業の環境影響評価・許認可・長期モニタリング計画の設計に直接応用できる。
In the global GX context
As ISSB/CSRD disclosure and net-zero transition plans increasingly rely on CCS as a residual-abatement lever, credible storage-risk and monitoring frameworks become essential for verifying claimed removals. This review's stage-aware SPR/HFC integration offers a reference structure for assurance and MRV of geological storage globally.
👥 読者別の含意
🔬研究者:CCSの容量評価・トラッピング・リスク統合フレームの最新整理として、THMCやMLサロゲート研究の出発点になる。
🏢実務担当者:CCS事業のリスク評価・モニタリング計画・緩和策の設計に使える実務的チェックリストを提供する。
🏛政策担当者:CCS許認可や長期モニタリング義務、MRV制度設計の根拠として参照できる。
📄 Abstract（原文）
Geological carbon dioxide (CO 2 ) storage has emerged as one of the most promising technologies for mitigating greenhouse gas emissions and achieving global carbon neutrality. This review provides a comprehensive overview of CO 2 geological storage with emphasis on storage formations, trapping mechanisms, storage capacity assessment methods, monitoring techniques, risk assessment, mitigation strategies, and the key factors governing long-term storage security. Major geological storage formations—deep saline aquifers, depleted oil and gas reservoirs, unmineable coal seams, and basalt formations—are compared in terms of storage capacity, injectivity, containment, and technological maturity; and the fundamental CO 2 trapping mechanisms (structural, residual, solubility, and mineral trapping) are examined together with their contributions to long-term storage permanence. Storage-capacity assessment methods are critically evaluated within the Carbon Sequestration Leadership Forum (CSLF) Theoretical–Effective–Practical–Matched Capacity framework, including the volumetric equations used for saline aquifers and depleted hydrocarbon reservoirs and their associated sources of uncertainty. The discussion is grounded in seven representative operating and demonstration CCS projects (Sleipner, In Salah, Quest, Illinois Basin–Decatur, Otway, Carbfix, and Gorgon), illustrating how storage capacity, monitoring, and risk-management decisions have been implemented in practice. Storage risks are organized within an integrated Source–Pathway–Receptor (SPR) and Hazard–Failure–Consequence (HFC) framework, and their evolution and coupling are traced across the injection, operational, and post-injection stages of a storage project. Corresponding monitoring technologies and preventive and corrective mitigation strategies are reviewed and explicitly linked to the specific risks they are designed to detect or control. Finally, recent advances in coupled thermo-hydro-mechanical-chemical (THMC) modeling, digital twins, machine-learning surrogates, and distributed fiber-optic and AI-based monitoring are discussed as emerging tools for reducing uncertainty and improving real-time risk management. Overall, this review offers an integrated, stage-aware framework for understanding and managing geological CO 2 storage risk, together with perspectives for improving storage reliability and accelerating the large-scale deployment of carbon capture and storage (CCS).
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1007/s44490-026-00004-6first seen 2026-10-18 04:54:34
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