ABSTRACTS

摘要

Wavelet extraction from microseismogram logs and wavelet application. Zhang Dong, Xu Leiliang, Jia Jingmin, Jiang Ziqiang and Ren Hongqin. OGP, 2012, 47（4） ：519-523rn On consideration of direct-current component and wavelet cutting-off effects, we propose in this paper a wavelet extraction approach from microseismogram logs. It can obtain more accurate wavelet than the conventional least squares method. Near-surface wavelet picking by this method can reflect shooting effects of near-surface strata. With this method near-surface excitation conditions can be monitored and selected. Applications in eastern Shengli Oilfield show effectiveness of the method.