Session 8. Oral Presentation for: Direct injection, direct impact: cutting CCS costs for scalable decarbonisation
直接注入、直接効果：大規模脱炭素化に向けたCCSコスト削減 (AI 翻訳)
Stephen Stokes
🤖 gxceed AI 要約
日本語
本発表は、CO2の直接注入技術の選択肢とコスト削減可能性を検討する。従来のCO2輸送・貯蔵チェーンにおける中間貯蔵や長距離パイプラインを排除し、浮体式設備を用いて船上から直接坑井に注入する手法を提案。コスト便益分析により、大規模CCSプロジェクトの経済性改善に寄与することを示す。
English
This presentation examines direct injection options for CO2, eliminating intermediate storage and long-distance pipelines. It proposes using floating vessels to inject directly into wells, analyzing cost savings via cost-benefit analysis. The results show potential to significantly reduce capital and operational expenditures, improving CCS project economics for large-scale decarbonization.
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
日本ではCCSの商用化に向けた実証が進むが、コスト高が課題。本件の直接注入技術は、洋上CCSのコスト低減に寄与する可能性があり、日本の海洋CCSプロジェクト（例：苫小牧・洋上CCS）への応用が期待される。
In the global GX context
Globally, CCS is recognized as a key decarbonization pathway, but high costs remain a barrier. This paper's direct injection approach reduces infrastructure needs, offering a scalable solution that could accelerate CCS deployment worldwide, particularly in offshore settings.
👥 読者別の含意
🔬研究者:CCS技術のコスト構造と直接注入の有効性を評価する際の参考になる。
🏢実務担当者:CCSプロジェクトの設計・コスト試算において、直接注入オプションを検討する根拠となる。
🏛政策担当者:CCS支援政策において、技術革新によるコスト低減ポテンシャルを示す事例となる。
📄 Abstract（原文）
Presented on 19 May 2026: Session 8 The energy transition is well underway with many countries and companies assessing options for CO2 sequestration. The CO2 value chain captures, transports, stores or utilises carbon dioxide from industrial sources. The value chain can include international shipping of CO2 as part of large volume transport and storage solutions. Traditional shipping of CO2 involves an intermediate storage solution (potentially located onshore) and a long pipeline to the injection site (potentially located offshore). Direct injection of CO2 is a novel solution involving sailing a vessel directly to a well site and thus removing intermediate storage and long distance pipelines. This paper will showcase the options available for direct injection and discuss the potential cost savings. Liquid CO2 (LCO2) can be directly injected using a floating storage injection unit, a floating injection unit, a tower loading unit or a catenary anchor leg mooring buoy. There is not a ‘one size fits all’ solution to direct LCO2 injection, and the chosen option requires careful project consideration: a key consideration is whether the project requires continuous injection into the well, or if intermittent injection is possible without imposing excessive stress on the wells during start-up and shut-down cycles. In addition, location-specific considerations, e.g., around wave height, water depth and power sources must be made in order to drive concept selection. Direct offshore injection has the potential to save significant capital and operational expenditure associated with intermediate storage and pipelines – unlocking a critical pathway for reducing the cost of large-scale decarbonisation. This paper investigates direct injection options through a cost benefit analysis, demonstrating potential solutions to improve the value of carbon capture and storage projects. To access the Oral Presentation click ‘Supplementary data’ below. To read the full paper click here
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.1071/ep26404first seen 2026-06-18 06:36:16
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