摘要
塔中大沙漠地区由于特殊的地理环境因素影响,地震原始资料的信噪比、分辨率及保真度低,有效信号能量弱,反射同相轴连续性差,在叠加剖面上难以对比追踪解释及储层研究,特别是针对目的层奥陶系碳酸盐岩的油气勘探,利用原始的地震资料很难进一步开展储层研究工作。在新一轮的地震资料处理过程中,采取了一系列新的处理技术和方法,通过大量的处理实验与对比,最终制定了适合塔中大沙漠地区地震资料处理流程及处理参数,探索出一套适用于碳酸盐岩油气勘探的地震资料处理技术。通过对新一轮资料的地震解释,对塔中奥陶系碳酸盐岩储层有了全新的地质认识,特别是对塔中Ⅰ号断裂带附近的礁滩复合体油气藏的理解取得了前所未有的新观点。
Influenced by special geographic and environmental factors,the raw seismic data from the desert of Tazhong area are low in signal-to-noise ratio,resolution,and fidelity.The effective signals are weak and the reflection events are poor in continuity.It is difficult to compare,track,interpret,and conduct reservoir research on stack profiles using raw seismic data,especially to carry out hydrocarbon exploration of the Ordovician carbonate in target formations.In a new run of seismic data processing,a series of processing technologies and methods are adopted.Based on a lot of experiments,seismic data processing flow and parameters appropriate to the desert are finally determined,as well as a set of seismic data processing techniques fit for carbonate hydrocarbon exploration are developed.Through a new run of seismic data interpretation,a new geological cognition of Ordovician carbonate reservoirs is obtained,in particular,a new cognition of reef-shoal complex reservoir near the TZ No.1 fault belt is developed.
出处
《中国石油勘探》
CAS
2008年第1期34-39,共6页
China Petroleum Exploration
关键词
塔里木盆地
碳酸盐岩内幕
叠前去噪
吸收补偿
速度建场
叠前时间偏移
礁滩复合体
Tarim Basin
carbonate inner structure
prestack noise elimination
absorption compensation
velocity field establishment
prestack time migration
reef-shoal complex
