应用三角洲沉积体系、凹陷类型比较、层序地层学及多种特殊处理等方法、手段对珠江口盆地南部坳陷带白云西-开平凹陷的石油地质条件进行综合研究.认为白云西-开平凹陷是始新世的断陷,文昌组三角洲沉积体系具有丰富的生烃潜力;始新统三角洲体系和中新统海相砂泥岩是主要的勘探目的层;油气生成较晚,以短距离运移为主;KP6-1、11-1等构造是极为有利的勘探目标. Using the methods of delta sedimentary system, depression type comparison, sequence stratigraphy and various special treatments, the paper studies the petroleum geological conditions of the Baiyunxi-Kaiping Depression in the southern Pearl River Mouth Basin. Eocene fault depression, Wenchang Formation delta sedimentary system has rich hydrocarbon potential; the Eocene delta system and the Miocene marine sandstone and mudstone are the main exploration target layer; hydrocarbon generation later, with short-distance transport as Lord; KP6-1, 11-1 and other structures are extremely favorable exploration targets.