The paper mainly analyzes the fault characteristics and fault
evolution of the main faults in Zhuanghai area , including
Chengbei fault , Changdi fault , Chengdong fault and Zhuangnan
fault. The evolution and the distribution of the faults control the
structure of Zhuanghai area. The characteristics of the structural
system and the structural development law are discussed in the
paper. The study is important and significant to the exploration of
the potential zone in old oilfields.