关键词: 中国东部, 油气区, 资源潜力, 勘探目标, 勘探阶段, 分期指标

Abstract: Petroleum province of the Eastern China,the most important oil production region in China has been experienced over 40 years' exploration and development.The resource potential of this area is of much concern.The number of exploration target and the magnitude of resource potential in this region were investigated,and the four indexes including drilling degree,annual increasing curve of reserve,reserve discovery rate curve and resource-proved rate were analyzed.The criterion of step-by-step exploration suitable for China was proposed.The exploration stage of petroleum province of East China can be divided into two types according to the above four indexes.One is developing strata in developed area,and another is developing area and new strata in the developed area.The former strata are in the middle stage of exploration,and the reverse can increase continuously and stably.The latter strata are in the early stage of exploration,and the reserves can increase quickly.

Key words: East China, petroleum province, resource potential, exploration target, exploration stage, division criterion