On porosity determination for hard rock drilling using core samples collected by the Oman Drilling Project

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  • オマーンオフィオライト陸上掘削試料を用いたハードロック掘削における空隙率測定法の再検討
  • オマーンオフィオライト リクジョウ クッサク シリョウ オ モチイタ ハードロック クッサク ニ オケル クウゲキリツ ソクテイホウ ノ サイケントウ

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Abstract

<p>Porosity is a key physical property of rocks and influences fluid flow and seismic velocity. In this study, we compared the imbibition and impregnation methods for measuring fluid-filled porosity, using mafic and ultramafic core samples collected by the Oman Drilling Project. Our results show impregnation to be faster than imbibition in terms of obtaining water saturation, although ≥ 10 days is still required to achieve saturation in low-porosity core samples.</p>

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