关键词: 黄骅坳陷, 潜山, 中生代, 构造, 油气聚集

Abstract: Huanghua Depression is a structurally complicated rift basin formed during Tertiary in Bohai Bay Region.Its pre-rift structural system,mainly generated during Mesozoic era,dramatically affected the rifting tectonics and the structural styles of buried-hills in Huanghua Depression.A ccording to seismic interpretations and tectonic analysis,Mesozoic tectonic deformation can be clarified into Indosinian and Yanshanian episodes.A complexes N-S trending strike-slipping fault and fold system in Huanghua Basin which developed during Jurassic-Cretaceous overprinted Indosinian anticlinorium and syclinorium.It formed the basic structural sketch of "relics" and "hybrid" buried-hill and made a great influence on the evolution of Tertiary faulted-block hills.Thus,Mesozoic tectonic events in Huanghua Depression can be treated as an most important factor for evaluating hydrocarbon bearing potential in buried-hills,due to their domination in buried-hill traps,reservoirs,oil types,and the scale of oil pools in Huanghua Depression.

Key words: Huanghua Depression, buried-hill, Mesozoic, tectonic, hydrocarbon accumulation