济阳坳陷新生代构造演化特征与油气成藏组合模式

RELATIONSHIP BETWEEN CENOZOIC TECTONIC EVOLUTION AND PLAYS IN JIYANG DEPRESSION

济阳坳陷新生代构造演化主要经历了古近纪断陷期和新近纪拗陷期2个重要的构造演化阶段。由于济阳坳陷新生代构造活动具有由西向东、由南向北的迁移规律,从而在该坳陷的惠民凹陷发育了早断早衰型下部油气藏成藏组合,在东营凹陷发育了继承型中部油气藏成藏组合,在沾化凹陷和车镇凹陷等发育了晚断晚衰型上部油气藏成藏组合。认为这3种不同类型的油气藏成藏组合模式对于指导胜利油田新生代下一步油气勘探具有一定的指导意义。

The Jiyang depression experienced two important tectonic evolution periods, Paleogene Taphrogenic period and Neogene depression period. Owing to its Cenozoic tectonic migration from west to east and from south to west, it developed three types of play, one is the lower early break-early decline play in the Huimin sag, the second is the middle inheritable play in the Dongying sag, the third is the upper late break-late decline play in the Zhanhua and Chezhen sags. The understanding of the three types of play are important to the further hydrocarbon exploitation in the Sheglii oilfield.