In situ determination of total carbon content and evaluation of source rock therefrom

摘要

The invention relates to a method for determining in situ the carbon content of a formation traversed by a borehole. …??The method according to the invention comprises the steps of: … …  a) measuring the carbon/oxygen elemental ratio of said formation; …  b) determing the porosity of the formation; …  c) obtaining the oxygen content and density of the fluid in said formation; …  d) obtaining the oxygen content and density of the minerals in said formation; …  e) determining the total carbon content of said formation from said carbon/oxygen ratio, said oxygen content and density of the fluid in said formation, and said oxygen content and density of the the minerals in said formation. …