The subsurface structure of Machang oilfield is complex. The former acquired seismic data could not satisfy the requirements for exploration and development.
马厂油田的地下地质构造复杂，以往采集的地震资料无法满足当前勘探开发的需要。
Because of the complex seabed structure in the shallow sea and extreme shallow sea, there are many technical problems using high-precision seismic exploration in this area.
由于极浅海及浅海地区海底结构复杂，该地区高精度地震勘探存在许多技术难题。
The technique of the transient electromagnetic method and seismic reflection method were studied and applied to detect complex geological structure.
针对矿井复杂地质构造，利用瞬变电磁和反射地震方法相结合，对相应的探测技术方法进行综合研究。
The movement of the moon is more seismic-related in simple plate structure area, and less seismic-related in complex plate structure area.
月球运动与板块结构简单区域地震相关性较为明显，与板块结构复杂区域地震相关性微弱。
Moreover, the seismic data quality in the complex structure zone is poor, and there isn't any useful signal in some area, which will increase the drilling risks.
而在构造复杂带地震资料往往品质差，甚至无信号，钻井的风险增大。
Moreover, the seismic data quality in the complex structure zone is poor, and there isn't any useful signal in some area, which will increase the drilling risks.
而在构造复杂带地震资料往往品质差，甚至无信号，钻井的风险增大。
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