地下深くの生物学的活動と重油の起源
Ian M Head1, D Martin Jones, Steve R Larter
1NRG petroleum group, School of Civil Engineering and Geosciences, University of Newcastle upon Tyne, Newcastle, NE1 7RU, UK.
Nature
|November 25, 2003
まとめ
微生物は,石油の炭化水素を80°Cまで分解して重油に変換し,地球深層の生命の限界を潜在的に示しています. このプロセスは,しばしばメタンを生成し,重油回収のための新しい方法を示唆しています.
科学分野:
- 地質化学 地質化学
- 微生物学 微生物学とは
- 石油科学 石油科学とは
背景:
- 地下石油貯蔵庫は,80°Cまでの温度で微生物によって生物分解される.
- この生物学的プロセスにより,炭化水素は地質的な時間とともに,より密度の高い重油に変化します.
研究 の 目的:
- 地下環境における炭化水素の生物分解の温度値を調査する.
- この生物分解限界の深層微生物生命の探求への影響を調査する.
- 重油回収の代替戦略を検討する.
主な方法:
- 地下貯水池の石油組成の分析. 地下貯水池の地下貯水池の石油組成の分析. 地下貯水池の地下貯水池の石油組成の分析. 地下貯水池の地下貯水池の地下貯水池の地下貯水池
- 生物分解過程の地質時間スケールの評価.
- 異なる温度や栄養条件下での微生物の活性に関する研究.
主要な成果:
- 炭化水素の生物分解は,約80°Cまで顕著である.
- この気温は,栄養素が少ない地球環境で微生物の生命の限界を表しているかもしれません.
- アナエロビック生物分解では,メタンが主要な副産物として一般的に生成されます.
結論:
- 生物分解の80°Cの値は,深層生物圏の限界を理解するための意味を持つ.
- 生物分解中のメタンの生産は,重油回収戦略の強化の可能性を提供します.
- 巨大な重油資源は,生物分解プロセスによる代替回収方法によってアクセス可能である.
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