海南岛附近海域有北部湾、莺歌海、琼东南三个新生代张裂盆地,石油地质条件优越,油气资源丰富。盆地的气源以液态烃的裂解气为主。莺歌海域发育两套生油岩,处于过成熟带的面积大,且有多种类型的圈闭和良好的生储盖条件相互配合,有利于油气的大量生成和富集。据气田预测是我国很有希望的海上产气区。 There are three Cenozoic rift basins in Beibu Bay, Yinggehai and Qiongdongnan near the sea area of ​​Hainan Island, with excellent petroleum geological conditions and rich oil and gas resources. The gas source of the basin is mainly cracked gas of liquid hydrocarbons. There are two sets of oil-bearing rocks in Yingge sea area, which are large in over-mature zone. There are many types of traps and good conditions for reservoir-cap formation, which are conducive to the massive formation and enrichment of oil and gas. According to the prediction of gas field is a promising marine gas producing area in our country.