Reservoirs in Xinzhuang area

Biyang depression

are characterized by shallow burial depth

large thickness and high enrichment

and are mainly of fault-nose and fault-block types. In view of the shallow burial depth of reservoirs and complexity of fault blocks

3D seismic survey method that can well preserve reflected signals has been applied in Xinzhuang area. In seismic acquisition

a fasciculate observation system with short offset distance and small bin has been used. In seismic processing

stress has been put on velocity analysis and pre-stack migration. In seismic interpretation

various functions of interactive system have been integrated to identify faults and to ascertain fault blocks. A lot of oil-bearing traps have been discovered by exploration wells positioned on the basis of the interpretation results.