Progress in study on crust-derived abiogenic hydrocarbons

The study on the crust-derived abiogenic hydrocarbons was developed quickly in recent years at abroad.The forming mechanisms and geological and geochemical characteristics of crust-derived abiogenic hydrocarbons were summarized,and the possibility of forming reservoirs,the favorable zones and the correlative study prospect were analyzed.The results showed that the crust-derived abiogenic hydrocarbons existed indeed and also distributed widely.The foreground of research on them is broad,though many unknown fields still existed.As the studies go forward,the understanding to the abiogenic natural gas,especially to the crust-derived abiogenic hydrocarbons,will get a new step.