摘要
赤道几内亚X区块水深100～2 000 m,寻找好的深水浊积砂岩储层是X区块急待解决的一个难题。根据已钻井岩石物理统计分析,基于纵波阻抗与纵横波速度比(Vp/Vs)交汇方式可以有效区分孔隙度较高的砂岩储层,提出了地震相分析结合叠前弹性波阻抗反演技术对区块A目标储层的发育情况进行了预测和精细刻画,认为A目标具有低纵横波速度比的特征,平面呈扇形分布,推测其为一套深水扇浊积砂岩,后经钻探证实了这一认识。该方法的成功应用对西非深水浊积砂岩储层预测具有一定的借鉴意义。
Water depth of block X in Equatorial Guinea is from 100 to 2000 meter,the problem of loo- king for deep-water turbidite sandstone reservoir needs to be solved for X block. According to the statisti- cal analysis of the drilled wells, good porosity reservoir can be distinguished by intersection of Vp/Vs and P wave impedance, therefore seismic facies analysis and prestack elastic wave impedance inversion tech- nique were put forward to predict and fine engrave low Vp/Vs characteristics,and its plane distribution reservoir of prospect A. Reservoir of prospect A has has fan-shaped, and was surmised as deep-water fan turbidite sandstone, which was proved by the drilling well A - 1. od has some reference to West Africa deep-water turbidite sands The successful application of this meth- tone reservoir prediction.
出处
《西安科技大学学报》
CAS
2013年第2期173-177,共5页
Journal of Xi’an University of Science and Technology
基金
国家重大专顼课题(2011ZX05030-004)
关键词
西非
储层预测
深水
叠前弹性波阻抗反演
West Africa
reservoir prediction, deep water
prestack elastic wave impedance inversion
