A comprehensive review of gas‐based enhanced oil recovery ( gas ‐ based EOR ) techniques: Mechanisms, applications, and future trends
ガスベースの原油増進回収（EOR）技術の包括的レビュー：メカニズム、応用、および将来動向 (AI 翻訳)
Yasin Khalili, Saeed Abassi, Mohammadreza Bagheri
🤖 gxceed AI 要約
日本語
本レビューは、CO2フラッディング、炭化水素ガス注入、窒素注入、フリューガス注入などのガスベースEOR技術を統合的に評価。CO2フラッディングは回収率向上とCO2貯留の両立が可能でCCUSに貢献する。各技術の経済性・環境影響も比較し、持続可能な炭化水素生産への道筋を示す。
English
This review provides an integrated evaluation of gas-based EOR techniques including CO2 flooding, hydrocarbon gas injection, N2 injection, and flue-gas injection. CO2 flooding offers superior recovery (10-20% incremental) and aligns with CCUS by enabling permanent CO2 sequestration. The paper compares economic feasibility, environmental implications, and emerging innovations like foam-assisted flooding and AI-driven optimization, highlighting EOR's role in sustainable hydrocarbon production.
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
本レビューはCO2-EORのCCUSとしての可能性を包括的に示しており、日本の石油業界が排出削減と資源回収を両立する技術を検討する上で有益。
In the global GX context
This review supports global CCUS deployment by systematically comparing gas-based EOR technologies. It provides a framework for evaluating recovery performance and sequestration potential, relevant for carbon pricing and transition finance decisions.
👥 読者別の含意
🔬研究者:Researchers can use this as a reference for comparing EOR techniques and understanding their CCUS potential.
🏢実務担当者:Practitioners in oil and gas can identify suitable EOR methods for mature fields while considering CO2 storage.
🏛政策担当者:Policymakers can refer to this to assess the role of CO2-EOR in national decarbonization strategies.
📄 Abstract（原文）
Gas‐based enhanced oil recovery (EOR) techniques are critical for maximizing hydrocarbon extraction from mature oil reservoirs, extending field productivity beyond primary and secondary recovery methods. This review comprehensively evaluates major gas EOR processes CO 2 flooding, hydrocarbon gas injection, nitrogen (N 2 ) injection, and flue‐gas injection focusing on their mechanisms, applications, economic feasibility, and environmental implications. Unlike prior reviews that address individual gas injection techniques, this paper provides an integrated evaluation of the technical, economic, and environmental dimensions of gas‐based EOR, establishing a unified framework for comparing recovery performance, technology readiness levels, and sustainability potential. Gas injection enhances oil recovery through miscible displacement, viscosity reduction, oil swelling, and reservoir pressure maintenance. CO 2 flooding demonstrates superior recovery efficiency, typically yielding 10%–20% incremental oil recovery beyond secondary recovery, and aligns with carbon capture, utilization, and storage (CCUS) objectives by enabling both enhanced recovery and permanent CO 2 sequestration. Hydrocarbon gas injection (rich and lean gas) achieves 15%–25% additional recovery in light oil reservoirs but faces economic and recycling challenges, whereas N 2 and flue‐gas injections yield 5%–15% and 3%–8% incremental recovery, respectively, providing cost‐effective options for pressure maintenance and late‐stage field rejuvenation. Emerging innovations such as foam‐assisted flooding, nanoparticle‐enhanced injection, solvent‐based EOR, and AI‐driven optimization further improve efficiency and reduce operational risks. Overall, this review highlights gas‐based EOR's potential to enhance oil recovery while reducing net emissions, supporting sustainable hydrocarbon production within evolving low‐carbon energy systems.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1002/cjce.70238first seen 2026-05-06 00:18:10
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。