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| q |
A term representing the fraction of clay occupying pore space.Sometimes calculated by
where: fz represents the porosity of the framework ot the rock and fe represents effective porosity. |
| quartz | A hard mineral composed of silicon dioxide. A common component in igneous, metamorphic, and sedimentary rocks. |
| quartzite | A metamorphic rock composed of quartz which has been formed by the metamorphism of sandstone. |
| quebracho |
(1) A tree in South America from which tannin is extracted.
(2) A thinning agent, tannin, used in drilling muds. |
| quick look, quicklook | A preliminary, well site, computed well-log analysis. |