【摘要】 渤海BZ28-1油田为裂缝性潜山油气藏。该区原三维地震资料分辨率低、信噪比低,很难满足裂缝储层预测的要求。为了研究该区裂缝的分布,设计了由8条二维测线组成的多方位地震测网,首次进行了多方位地震采集,并对新采集的数据进行了高分辨率处理和完全保幅处理。利用方位NMO速度、方位时差、方位AVO等地震属性的变化,对BZ28-1油田裂缝发育状况及分布进行了预测,取得了较好的效果。更多还原

【Abstract】 BZ28-1 is an oilfield with fractured buried-hill reservoirs in Bohai sea,where existed 3D seismic data failed to predict the fractured reservoirs because of their low resolution and low signal-to-noise ratio.In order to probe into the fracture distribution in this field,multi-azimuth seismic data have been firstly acquired by designing a multi-azimuth seismic network composed of 8 2D lines,and have been processed for high resolution and complete amplitude preservation.Using the variations of seismic attributes such as azimuthal NMO velocity,azimuthal travel time and azimuthal AVO,the development and distribution of fractures are predicted in BZ28-1 oilfield,resulting in a good effect.更多还原