porosity

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00:54 Oct 24, 2008
English to Japanese translations [PRO]
Science - Petroleum Eng/Sci
Additional field(s): Geology
English term or phrase: porosity
Definition from Canadian Association Petroleum Producers:
The volume of spaces within rock that might contain oil and gas (like the amount of water a sponge can hold); the open or void space within rock – usually expressed as a percentage of the total rock volume. Thus porosity measures the capacity of the rock to hold natural gas, crude oil or water.

Example sentence(s):
  • The porosity profile in any individual well depends on the maximum effective stress, which is generally determined by the maximum burial depth. U.S. Geological Survey
  • Carbonate reservoirs have lower values of median and maximum porosity for a given burial depth, probably because of greater chemical reactivity of carbonate minerals relative to quartz and the resulting lower resistance to chemical compaction and associated cementation. GeoScienceWorld
  • Porosity and permeability reduction due to burial and compaction acts differently on different sediment types. Sandstone is more resistant to porosity and perm reduction due to compaction, whereas shales and siltstone are generally more prone to perm reduction. All Experts
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Summary of translations provided
5孔隙率
Hikonishi (X)


  

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17 days   confidence: Answerer confidence 5/5
孔隙率


Definition from 新版地学事典:
岩石の全容積に対する孔隙(間隙、すきま)容積の比(新版地学事典)。

以下は、私の説明:
孔隙には、気体または液体が占めます。岩石または地層を評価するときに使う概念です。間隙率(かんげきりつ)または孔隙率(こうげきりつ)という訳語を使いますが、石油関係では、孔隙率が多用されるように思います。インターネット検索でも、一般に、孔隙率が多くみつかります。

Example sentence(s):
  • 深部からの熱分解起源のガスが大量に安定領域内に供給されれば,ガスハイドレート安定領域内において浸透率と孔隙率の高い堆積物中に選択的にガスハイドレートが集積し,その直下にフリーガスがトラップされる可能性が高い. - 天然ガスハイドレートの生成�  
  • 集油構造は、地震探査解釈による地下構造図によって見いだされ、集油面積や孔隙率などから求めた埋蔵量を基に経済性についても検討します。 物理検層では、岩石の物理的特性を計測することによって、岩相や地層の孔隙率、炭化水素の飽和率など推定します。 - 日本の資源とエネルギー  
  • GDIは先に触れた反射法地震探査の結果から貯留岩の性状を推定するためのツールで、石油の埋蔵量や油田の広がりを推定する上で不可欠な貯留岩の厚さや分布域、石油を貯めうる岩石中の孔隙率の評価に用いられています。 - 石油・天然ガス資源調査  
Hikonishi (X)
United States
Local time: 21:09
Native speaker of: Japanese
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