“两宽一高”地震资料的敏感方位油气检测技术在乍得潜山油藏描述的应用

Application of seismic sensitive azimuth hydrocarbon prediction based on “WF,WA&HD” seismic data at L buried hill in B basin,Chad

潜山油藏由于具有较强的各向异性及地震资料品质的限制,油藏的油气预测一直是世界级的难题.虽然近几年"两宽一高"地震资料提供了更为丰富的地震信息,但如何利用"两宽一高"地震信息进行储层描述和油气预测目前没有统一的软件和规范的配套技术.针对乍得B盆地L地区花岗岩风化壳和裂缝潜山油藏,利用"两宽一高"地震资料的方位信息,根据不同方位振幅、频率信息的差异,攻关集成了基于"两宽一高"地震资料的敏感方位油气检测技术,该技术在潜山油藏描述中取得了较好的应用效果.这项技术是"两宽一高"地震信息应用的创新,对其他具有同样地质条件的地区具有借鉴意义.

The reservoir and hydrocarbon prediction of basement granite is a world-wide problem due to the strong anisotropy and poor seismic quality. In recent years,＂WF,WAHD ＂ seismic data have improved the seismic quality obviously,however,there is still no unified method in the aspect of how to predict reservoir and hydrocarbons of basement granite by ＂WF,WAHD＂dataset. In this study,aiming at the burial hill granite in L field of the B basin,a reservoir and hydrocarbon detection method using selective sensitive azimuth data has been worked out,which can be applied in areas with similar geological conditions.