复杂地质体是复杂油气藏的主要类型之一，往往表现为几何形态的不规则和速度纵横向的剧烈变化等，这些特征极大地加剧了复杂构造精确成像的难度。

Complex geological body is main types of complex oil and gas reservoir, and its irregular geometrical shape and acutely variable velocity have an effct upon the accurate imaging of complex reservoir.

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