渤海湾盆地济阳坳陷潜山油藏分布规律及控制因素

DISTRIBUTION AND CONSTRAINTS OF BURIED HILL RESERVOIRS IN THE JIYANG DEPRESSION, BOHAI GULF BASIN

济阳坳陷潜山油藏类型复杂,构造裂缝是油藏的主要储集空间。济阳坳陷潜山储层的分布主要受控于盆地的形成过程,构造运动是控制潜山分布的最主要的因素。潜山储层非均质性强,且不同潜山的储层性质存在较大差异。济阳坳陷潜山油藏的开发特征复杂,稳产阶段短、产能差异大、含水上升快。中生代及以前形成的古地貌早隆潜山是济阳坳陷最有利的潜山油藏勘探目标。

Buried hill reservoirs in the Jiyang depression have complex types and are widespread, and structural fractures are the main oil accumulation space of buried hill reservoirs. The distribution of buried hill reservoirs in the Jiyang depression is mainly controlled by the process of basin formation. Tectonic movement is the most important factor for controlling the distribution of buried hills. The buried hill reservoirs are highly heterogeneous and there is appreciable difference in reservoir properties of different buried hill reservoirs. The exploitation characteristics of buried hill oil accumulations in the Jiyang depression are complex, the stable production period is short, the production capacities are greatly different and the water content increases quickly. The buried hills formed in or before the Mesozoic are the most favorable exploration target of buried hill oil accumulations in the Jiyang depression.