Qiongdongnan basin is an offshore petroliferous basin with several hydrocarbon generating sags,but there is no great breakthrough except fro the YC13-1gas field after years of exploration.

• 琼东南盆地是一个具有多个富生烃凹陷的海上含油气盆地,但经过多年的油气勘探工作,仅在YC13-1构造上获得一大气田。