Late and Rapid Petroleum Accumulation Pattern in Bozhong Depression By Taking BZ34 Fault Zone in Huanghekou Depression for Example

The classical petroleum geology has ever suggested that the petroleum migration accumulation is a slow process and the late tectonic activity is one of the major factors for oil gas reservoir failure.However,at the late stage,rapid petroleum accumulation patterns of BZ34 fault zone are brought forward in the background of the source rock bury and fast mature and the late rupture are well developed.The history of source rock maturation,the pass-through passage system,the hydrocarbon source and its displacement history of BZ34 fault zone are studied by means of single-well 2 Dimensional basin modeling,oil-to-source correlation and the analysis of fluid inclusion.It is pointed out that the active source rock and the late rupture are two controlling factors of the late and rapid petroleum accumulation pattern.