The casing wave and formation compressional wave can be differentiated by the waveform difference between open hole and cased hole,and the formation compressional wave can be extracted by a STC(slowness-time coherence) method.
英
美
- 從下套管前后測得的全波波形的差異可區別套管波和地層縱波,采用慢度-時(shí)間相關(guān)STC(Slowness-Time Coherence)法可提取地層縱波。