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利用满覆盖采集的三维地震剖面,对Fauqi背斜平面构造变形格局及剖面构造变形样式进行了详细的构造解析;基于断层滑脱褶皱模型,采用正演平衡地质剖面技术,开展了Fauqi背斜深部滑脱耦合浅部生长褶皱及断裂的运动学模拟,提取的构造特征与实际地震剖面特征基本一致;利用构造解析成果,结合生、储、盖时空配置关系分析,探讨了Fauqi背斜的石油差异性富集机制.结果表明:在深部的滑脱作用、浅部生长地层的同构造沉积作用,以及来自扎格罗斯山的南西向水平构造应力挤压作用等的叠加耦合下,形成了Fauqi背斜差异性平面构造变形格局及层次性剖面构造变形样式;正是差异性构造变形造成了Fauqi背斜中石油的差异性富集;而通过深部滑脱耦合浅部生长褶皱及断裂运动的计算机模拟,发现Fauqi背斜褶皱的水平滑移距离达3.5km左右.
Based on the three-dimensional seismic section covered by overburden, the deformation pattern of the Fauqi anticline and the deformation pattern of the section structure are analyzed in detail. Based on the fault collapse fold model and the forward balanced geologic profile technique, the deep detachment of the Fauqi anticline The kinematic simulation of the coupling of shallow folds and faults is basically consistent with that of the actual seismic section. Based on the results of structural analysis and the spatial and temporal relationship of the reservoir, reservoir and cover, the oil-richness of Fauqi anticline Set mechanism.The results show that the Fauqi anticline is formed under the superposition coupling of deep slippage, synsedimentary sedimentation of shallow growth strata and southwest horizontal tectonic stress extrusion from Zagros Mountains Plane deformation pattern and stratified profile deformation pattern. It is the differential tectonic deformation which resulted in the differential enrichment of petroleum in the Fauqi anticline; and through the deep detachment coupled with shallow growth folds and fracture motion, it was found that the Fauqi anticline Fold horizontal sliding distance of 3.5km or so.