岩性圈闭和构造岩性圈闭面积大、含气层段多，成为该区主要的圈闭类型。
Trap types of the study area are mainly lithologic and structural lithologic traps.
苏北盆地由小型箕状凹陷组成，断层密度高、圈闭面积小、油气贫富不均是其复杂性的主要表现。
Subei basin is composed of small half grabens and features in closely-spaced faults, small traps, and homogeneous hydrocarbon abundance.
苏北盆地的SXF地区是典型的低信噪比地震资料地区，断裂系统复杂，构造破碎，圈闭面积小，火成岩发育。
Because of complex fracture system, faulted structures, and rich igneous rocks, SXF area is a representative low signal-to-noise ratio seismic data region in Subei basin.
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