叠前预测技术在提高河道砂岩储层预测分辨率中的有关探索——隐蔽河道刻画方法新探  

Exploration of Pre-Stack Prediction Technology in Improving Prediction Resolution of Channel Sandstone Reservoir—A New Approach to the Delineation of Concealed Channels

作　　者：师修琳 

机构地区：[1]中石化西南油气分公司勘探开发研究院,四川 成都

出　　处：《地球科学前沿（汉斯）》2022年第7期1028-1038,共11页Advances in Geosciences

摘　　要：高品质的地震剖面及精细的地质岩性解释成果是地球物理及地质工作者所追求的目标,二者在油气勘探开发工作中的重要性不言而喻;但基于全叠加技术所获得地震剖面往往在分辨率及信噪比等方面均不理想,满足不了科研生产需要,在此基础上开展的地质解释及岩性储层预测工作其可信度和预测精度大打折扣;本文提出了一个崭新的技术方法以解决该系列问题,通过和兴场–高庙子地区沙溪庙组隐蔽河道砂体刻画对比,证明该方法效果理想,具有广阔的应用前景。High-quality seismic profile and fine geological lithology interpretation results are the goals pur-sued by geophysicists and geologists. The importance is self-evident in oil and gas exploration and development. However, seismic profiles obtained by full stack technique are often unsatisfactory in resolution and signal-to-noise ratio, and can’t meet the needs of scientific research and production. The reliability and accuracy of geological interpretation and lithologic reservoir prediction are greatly reduced. This paper proposes a new technical method to solve such problems. The results of this method are proved to be satisfactory by comparison of the concealed channel sand body of Shaximiao Formation in HXC-GMZ area, and it has broad application prospects.

关 键 词：叠前道集 全叠加 偏移距 角度道集 部分叠加 分辨率 隐蔽河道 砂岩 

分 类 号：P618.13[天文地球—矿床学]