摘要
受地震勘探分辨率的限制,常规的波阻抗反演技术已经无法满足薄层储层预测的需求。为了进一步精细刻画薄砂岩储层,寻找有利岩性圈闭,对新型的地震波形指示反演技术(SMI)开展了实际数据应用与分析。应用结果表明:该方法能够有效进行薄储集层的预测,可以识别3~5m厚的砂体,且预测的砂体在剖面上变化自然、边界清晰,岩性的预测结果与钻井符合率较高,达到85.7%,对目标区的岩性勘探具有指导意义。
Restricted by the resolution of seismic exploration, conventional elastic impedance inversion technology has been unable to meet the needs of thin reservoir prediction. In order to depict thin sandstone reservoir and find favorable lithologic traps, a new seismic motion inversion (SMI) technique has been studied and applied. The application results show that this method can effectively predict thin reservoir and identify sand bodies of 3~5 m thick. Moreover, the predicted sand bodies change naturally and have clear boundaries in the section. The predicted results of lithology are in good agreement with the drilling results of a high rate reached 85.7%. Therefore, it has guiding significance for lithologic exploration of the target area.
作者
张琬璐
Zhang Wanlu(Research Institute of Petroleum Exploration and Development,East China Company, SINOPEC, Nanjing, Jiangsu 210011, China)
出处
《非常规油气》
2019年第3期21-25,14,共6页
Unconventional Oil & Gas
基金
中石化重大科技项目“苏北盆地华东探区油气聚集规律及精细评价关键技术研究”(ZDP17013)资助
关键词
波形指示反演
储层预测
高分辨率
seismic motion inversion
reservoir prediction
high-resolution
