永安镇三维地震工区位于已勘探开发近20年的复杂断块油田区。

Yonganzhen 3d seismic prospect is the complex fault-block oil field area where exploration and development have lasted nearly 20 years.

这一主体构造形式控制了永安镇油田的油气的差异运聚与油气分布规律。

The overall structural patterns have controlled the differential accumulation and distribution of oil and gas in the Yong'anzhen oil field.

东营凹陷永安镇断裂带天然气藏为石油伴生气经多次运移分异聚集形成的次生气藏，其成藏因素较为复杂。

The gas reservoirs in Yong'anzhen faulted belt of Dongying sag are secondary reservoirs accumulated via multiple migration and differentiation.