HYDROCARBON-REGENERATION CAPABILITY OF MARINE PALEO-RESERVOIR AND SOLUBLE ORGANIC MATTER

Based on the results of thermal simulation of many samples at conditions of close system,the hydrocarbon-regeneration capabilities and yield distribution features of soluble organic matter and marine paleo-reservoir which has different properties and different compositions(extra heavy oil,normal crude oil and light oil) were studied.The results indicate that the hydrocarbon-regeneration capability of different marine paleo-reservoir and soluble organic matter were ranked in order of condensate oil light oilnormal crude oilSilurian asphaltic sandstones≥heavy oil limestone≥low-mature solid bitumen≥asphalt-bearing limestoneheavy oil sandoxidation solid asphalt.This capability was mainly controlled by the properties and compositions of soluble organic matter besides factors of lithology,occurrence state and evolution degree.Hydrocarbon-regeneration process of soluble organic matter was continuation of hydrocarbon generation from kerogens.The hydrocarbon generation potential of soluble matter was equivalent with that of kerogens.They could be used as light oil or natural gas source when their temperature arrived at over-high mature stages.