Hydrocarbon Migration Conditions of the Buried Hill in the West Slope of West Sag in Liaohe Depression

Based on the analysis of accumulation conditions of buried hill reservoirs in the west slope of west sag in Liaohe depression, this thesis emphasizes on the hydrocarbon migration conditions of buried hill reservoir The oil in buried hill reservoir of the west slope has four types of migration paths Different migration paths have different characteristics There are many ways for oil to buried hill, but the most effective way is to migrate oil directly from above or lateral contacted source rocks, resulting in the formation of big buried hill reservoirs Oil accumulation by unconformity or fault also can form buried hill reservoirs rich in oil and gas These research results can make buried hill exploration more effective in the west slope, or even in whole Liaohe depression