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HPHT Micro-to-Nano Seismic Comparison of GEIOS Nitrogen Hybrid Gas Nanofoam vs. Water-Proppant EGS

HPHT微小からナノスケールの地震比較：GEIOS窒素ハイブリッドガスナノフォームと水-プロパントEGS (AI 翻訳)

SERROUNE, ABDELMOUMEN SHAD, Sackiewsky, Harris, Sopaheluwakan, Jan, IR, Khasani, Zhang. Edwin Larry

EarthArXivプレプリント2026-06-18#エネルギー転換対象セクター: power
DOI: 10.31223/x5xr24
原典: https://eartharxiv.org/repository/object/13588/download/23862/

🤖 gxceed AI 要約

日本語

本研究では、GEIOS窒素ハイブリッドガスナノフォームと従来の水-プロパント流体の地震性能を比較。HPHT条件下でナノフォームはAEイベント数を49%減、b値を1.52に上昇させ、誘発地震低減に有効。コアスケール実験で開口安定性と熱拡散率も向上。

English

This study compares GEIOS nitrogen hybrid gas nanofoam with conventional water-proppant fluids in EGS. Under HPHT conditions, nanofoam reduced AE events by 49% and shifted b-value to 1.52, indicating lower induced seismicity. Core-scale tests also show improved aperture stability and thermal diffusivity.

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

日本は地熱資源が豊富だが、誘発地震が社会的受容性の課題。本技術はその解決に寄与する可能性があり、SSBJや再生可能エネルギー政策に関連。

In the global GX context

Induced seismicity is a key barrier to EGS deployment globally. This nanofoam technology offers a potential mitigation pathway, relevant to low-carbon energy transition and climate goals.

👥 読者別の含意

🔬研究者:Core-scale evidence of nanofoam reducing microseismicity; field validation needed.

🏢実務担当者:Technology concept for seismic risk reduction in geothermal projects; early stage.

🏛政策担当者:Potential to address public acceptance barriers for geothermal energy.

📄 Abstract（原文）

Statement of peer-review status: This is a non-peer-reviewed preprint. The work derives from internal laboratory testing at Nanogeios Laboratory and has not been submitted to a peer-reviewed journal. For patent and intellectual-property security, certain sources and proprietary technical details (e.g., exact nanoparticle composition and surfactant/stabiliser chemistry) are intentionally not disclosed. This study presents a comparative analysis of the mechanical and seismic performance of GEIOS nitrogen hybrid gas nanofoam versus conventional water-proppant fluids in Enhanced Quantum Geothermal (EQG) reservoirs. Under matched High-Pressure High-Temperature (HPHT) triaxial conditions (80-140 MPa confinement, 300 C), the nitrogen-based nanofoam reduced total acoustic-emission (AE) event counts by 49% and shifted the b-value to 1.52, compared to traditional water-proppant controls. These data suggest a distributed-microcracking failure mode that significantly lowers the induced-seismicity signature, addressing the primary barrier to geothermal deployment. While core-scale laboratory tests indicate superior aperture stability and thermal diffusivity, field-scale validation is required to confirm reservoir-scale fault mitigation.

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