拟声波构建技术在张东古潜山储层预测中的应用  

Applying Pseudo Acoustic Technique to Reservoir Prediction in Zhangdong Buried Hill

作　　者：衡海良[1,2] 杨帆[1,2] 肖建玲[1] 孙凤萍[1] 

机构地区：[1]大港油田公司,天津300280 [2]成都理工大学,成都610059

出　　处：《工程地球物理学报》2010年第1期71-74,共4页Chinese Journal of Engineering Geophysics

摘　　要：拟声波构建技术依据对储层敏感的非声波地球物理测井信息构建具有声波量纲的新曲线,即拟声波曲线,使之既能反映地层波阻抗和速度的变化,又能反映地层岩性的细微差别,可以较好地解决储层定量预测中的岩性识别难题。针对张东古潜山地层实测声波时差曲线对砂、泥岩的岩性反映不明显,无法进行储层反演预测的问题,采用了拟声波构建技术,将对储层岩性敏感性好的自然电位曲线转换成拟声波曲线,以此为约束条件实现了储层预测的目的,取得了较好的应用效果。Pseudo acoustic technique is to use the non- acoustic well log information which is sensitive to reservoir to construct new acoustic curve with dimension, so the pseudo acoustic curve can reflect either the variation of formation speed and acoustic impedance or the minor difference of formation lithology. The technique can preferably solve the problem of quantitative lithology identification in reservoir prediction. Problems existed in Zhangdong buried hill that well log curves could not distinguish sandstones and mudstones effectively and could not be used in reservoir prediction. By applying pseudo acoustic technique, the natural potential curve that is sensitive to reservoir lithology is transferred into acoustic curve. Good results are achieved.

关 键 词：古潜山 自然电位 拟声波 测井约束反演 

分 类 号：P631[天文地球—地质矿产勘探]