Method for determining petroleum characteristics of geologic sediments

摘要

The present invention relates to a method for determining at least one petroleum characteristic of a geologic sediment sample heated in a non-oxidizing atmosphere and an oxidizing atmosphere. The sample is heated to a first temperature value below 200 DEG C. for a predetermined period of time and then to a second temperature value ranging between 600 and 850 DEG C. according to a temperature gradient between 0.2 DEG C. and 50 DEG C./min. Carbon dioxide and carbon monoxide are continuously measured during the temperature stages in order to determine at least one petroleum characteristic, wherein said petroleum characteristic comprises a quantity of organic oxygen, inorganic oxygen, total organic carbon, or inorganic carbon.