Taixinan basin,which exists range of profitability of natural gas abundance zone in offshore shelf basin china,is one of petroliferous basin of middle Cenozoic era in marginal basin of the northern in south China sea with good resources base and exploration potential.This region belongs to the lower exploration search other than discovered petroliferous structures of CFC,CFS,CGF in central uplifted zone so far.Because central uplifted area is situated favorable migration region in middle basin with good acc...