The rest may contain oil and gas. all these pore fillings are affected by a system of static and dynamic pressure which are the main reason for the migration and the trapping of petroleum hydrocarbons in reservoirs.

• 其余的部分可能含有石油和天然气，所有的孔隙填充物都受着静压力和动压力的影响，这些压力就是造成石油碳氢化合物迁移并圈闭在储油层之中的主要因素。