Calculation method and application of carbonate content in 2081 sandstone type uranium deposit

Abstract：Two mineral content is closely associated with the permeability of sandstone, which are argillaceous and carbonate.In 2081 Uranium deposit, argillaceous mineral is comparatively low and the average value is 2.85%, while the carbonate content variation is comparatively large.So, the latter become a main factor to affect the sandstone permeability.It can offer reference to the permeable sandstone and impermeable sandstone division when the carbonate content-s calculated.Carbonate fill in the sandstone pore mainly in the form of microlite-carbonate to affect the permeability of sandstone.Therefore, to some extent, it is reasonable to calculate the carbonate content with porosity logging (sonic time difference) parameters.

Keyword：sandstone type uranium deposit;porosity;sonic time difference;carbonate content;