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陈堡地区油气勘探实践表明,油气的分布和聚集与断层有着极为密切的关系,断层既可作为油气运移的通道,又可作为油气聚集的遮挡物。断裂在油气运聚中的作用如何,将确定油气的聚集层位及分布范围。笔者通过断裂对油气运聚条件控制的分析,指出断裂控制了圈闭的形成及成因类型、断层的活动期控制着油气的运聚时期及层位、封闭性断层与泥岩盖层的组合是控制油气成藏的重要因素,最后建立了该区的断裂的控油气成藏模式。
The oil and gas exploration practice in Chenbao area shows that the distribution and accumulation of oil and gas are closely related to the fault. The fault can act as a passage for oil and gas migration as well as an obstruction for hydrocarbon accumulation. The role of faults in hydrocarbon migration and accumulation will determine the hydrocarbon accumulation level and distribution range. The author analyzes the control of oil and gas migration and accumulation by fracture, pointing out that the faults control the formation and genetic type of traps, the active period of faults controls the hydrocarbon migration and accumulation period and horizon, and the combination of closed fault and mudstone cap is controlled As an important factor of oil and gas accumulation, the controlled oil and gas reservoir accumulation mode of the fault was finally established.