Wuhaozhuang area is the key and old oil area of Shengli Oilfield for oil-gas exploration in beach and shallow
sea. It has great potential on increase in oil reserve and production, but the energy in middle-deep layer of
the existing seismic data is weak, and its signal-to-noise ratio is low, so it is hard to meet the requirements
for further detailed structure interpretation and reservoir description. Aimed at the characteristics and
difficulties of the complex surface and underground conditions, based on complex structure modeling and
prestack imaging result analysis, we designed and proved high-precision geometries for seismic acquisition
suitable for the beach and shallow sea in Wuhaozhuang area, which ensured seamless data acquisition in
the land-beach-shallow-sea area. By studying high-efficient dynamite source and using the shooting
techniques based on near-surface lithology layering and modeling, the shooting effect of intertidal zone was
improved. By studying and testing air gun array parameters, we optimized airgun array mode and shooting
depth with good wavelet characteristics and strong energy. The platelike long-tail cone geophone coupler
was adopted to improve the seismic wave receiving effect in intertidal zone as well. Besides, the
repositioning technology and counter measurements were utilized to improve the positioning accuracy of
underwater hydrophone. By jointly using all the techniques and methods, we achieved high-quality seismic
data and obvious geological effect in Wuhaozhuang area.
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