According to oil-gas accumulation mechanism under abnormal pressure, the hydrocarbon accumulation phases are classified, and the elects of the abnormal overpressure on reservoir type awl distribution are analyzed.

• 依据异常压力成效机制对柴西南油气成藏阶段进行了划分，并分析了异常压力对油气藏类型和油气藏分布的控制作用。