摘要
针对声波测井中的薄层问题,设计了井径不变情况下的厚层夹薄层模型。采用折射纵波单发双收的原理,数值正演模拟得到了声波时差值;利用小波变换计算了地层位置、厚度和速度。所得结果和原始模型符合很好,达到满意效果。
In view of acoustic log of thin bed, a thick bed clipping thin bed model of constant well diameter was designed. Based on refraction p-wave, and the concept of single-emission and double-receiving, forward modeling was used to obtain the acoustic travel time. Wavelet transform was used to obtain the position, thickness and speeds of the geologic strata. The result is consistent with that of original model, satisfied effect is obtained.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2007年第5期97-99,168,共3页
Journal of Oil and Gas Technology
关键词
声波测井
薄层
正演模拟
折射纵波
单发双收
小波变换
acoustic log
thin bed
forward modeling
refraction p-wave
single-emission and double-receiving
wavelet transform
