地震储层预测技术在滨海地区的应用

滨海断鼻构造位于歧口生油凹陷中心,是大港油田滩海岩性油气藏勘探寻求突破的重要领域。该区断裂发育,构造复杂,且沉积体系多样,相变快,储层非均质性强,储层预测难度较大。本文在充分研究该区构造和储层特征的基础上,综合应用地震精细层位标定、属性分析、地层切片、测井约束反演、地震分频处理解释等技术对该区不同油层组砂岩和火成岩储层的空间展布特征进行了预测,取得了良好的应用效果,为下步岩性油气藏勘探提供了依据。

Seismic Reservoir Prediction in Binhai Area of Qikou Depression

The faulted nose in Bibhai area,which is located in Qikou depression,is an important target to discover stratigraphic-lithologic reservoirs for the Dagang oilfield.In the study area,the structure is complex due to faulting.Furthermore,reservoir heterogeneity is substantial,which was resulted by changes of depositional system and facies.These features complicate reservoir prediction.Based on the characterization of structure and reservoir,this study applied geophysical techniques such as subtle horizon labeling,seismic attribute analysis,stratigraphic slices,logging constrained seismic inversion,spectrum decomposition interpretation,et al.,to predict distribution of sandstone and igneous rock in different oilbearing formations.The application achieves good results and provides guidelines for the exploration of stratigraphic-lithologic reservoirs.