Yonganzhen oilfield is located at faulted terrace belt of sharp slope in Dongying depression which is a half graben depression controlled by three major faults.

 
  • 永安镇油田位于单断式箕状凹陷(东营凹陷)的陡坡断阶带,受3条大断层控制,从南向北出现了低、中、高3个台阶带。
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