METHOD FOR PREDICTING SOURCE ROCK BY PALEOENVIRONMENT RESTORATION

摘要

A method for predicting a source rock by paleoenvironment restoration includes: (1) measuring a content of each mineral; (2) judging whether a sedimentary environment is a marine facies or a non-marine facies by utilizing element combination forms of Sr/Ba, B/Ga, Th/U, Fe/Mn and Sr/Ca; (3) judging a specific numerical value of a paleosalinity through a boron element and comparing the same with a current normal seawater value to deduce whether the current sedimentary environment is a saline water or non-saline water sedimentary environment; (4) judging an oxidation or reduction environment during sedimentation through element combination forms of (Cu+Mo)/Zn and V/(V+Ni); and (5) comprehensively analyzing the sedimentary environment, restoring a relationship between a palaeosedimentary environment and a source-reservoir configuration.