【摘要】 埕海潜山奥陶系岩性主要是碳酸盐岩地层,储集空间以裂缝、孔洞为主,储层非均质性较强.该潜山埋藏深,地质情况复杂,仅靠单一的裂缝预测方法很难有效地预测裂缝及孔洞在平面上的展布规律,因此有必要从多个角度利用多种手段相互印证来落实奥陶系储层特征.为此,本文将相干分析技术和地震像素处理技术相结合对该潜山裂缝发育地区进行了预测,并且利用多种地震技术对预测结果进行了综合分析,完成了奥陶系上部地层裂缝综合评价图,识别出了裂缝发育区,提高了预测结果的可靠性,为勘探决策提供了重要依据.更多还原

【Abstract】 The Ordovician strata is the mainly carbonate rocks in the buried hill of Chenghai in the east of China,and its reservoir space is dominated by fractures,holes and strong heterogeneity.This hill buried deeply and has complex geological conditions.It is very difficult to effectively predict the fractures and holes in the plan distribution which only with assistance of a single reservoir prediction.It is necessary to use various methods from multiple points of view to confirm each other to research the Ordovician reservoirs.In the view of this,the method combined with the technology of coherence analysis and the technology of seismic pixel processing has been applied to predict favorable fracture zone from different views in the buried hill,and a variety of seismic techniques are utilized to comprehensively analyze.The comprehensive evaluation plan of fracture prediction of the upper strata of Ordovician are finished,and fractures developed area are identified.It improves the reliability of prediction and provides an important basis for exploration decision.更多还原