野外观察、典型地震解剖和物理模拟证实,只要岩石存在能干性差,断层具有典型垂向分段生长特征.岩石能干性差异决定断层演化历经3个阶段:下部断层形成、断裂上下分段和贯通性断裂形成.以三肇凹陷为例,应用岩石力学特征和断层相关褶皱理论,证实扶杨油层砂岩层段普遍形成断裂,青一段泥岩阻止下部断层向上传播,从而形成断层垂向分段生长现象.结合油藏精细解剖表明,三肇凹陷扶杨油层“倒灌”运移的主要油源断层是成藏期活动、沟通源储且垂向分段生长的断裂. Field observations, typical seismic anatomies and physical simulations confirm that faults have a typical vertical segmented growth pattern as long as the rock is poorly capable. The ability to differentiate rocks determines the evolution of the fault through three stages: formation of lower faults, up and down fractures and continuity Taking the Sanzhao depression as an example, the rock mechanics characteristics and fault-related fold theory are used to confirm the general formation of faults in the sandstone layers of the Fuyang oil layer. The Qinglian mudstone prevents the lower faults from propagating upwards, resulting in the vertical segmental growth of faults. According to the fine dissection of reservoirs, the main oil source fault of “Yanglian” migration in the Sanzhao depression is a fault that is active during hydrocarbon accumulation period and communicates with the source reservoir and grows in vertical section.