Application of Coherence Inversion Method to Shallow Reflection

• 作 者: 吴建成 田宗勇
• 出 处: Journal of China University of Mining & Technology
• 发表日期: 2001年02期
• 关键词: Inversion reflective inversion shallow prospecting refraction coherence traces d

Because of the disturbance of some regular waves, the deformity of reflective wave occurs, making the coherence inversion method unreliable. By using the event time from multi fold reflective stack the range of model parameters obtained by coherence inversion is limited in coherence inversion. Then by adjusting the initial values of the model parameters to make the waveform from the coherence inversion method be consistent with that from the original reflective gathers, the result of the inversion becomes more reliable. The application of this method in processing the reflective gathers in Songzikou by the Jingjiang River of Hubei demonstrates the efficiency of the method.

Because of the disturbance of some regular waves, the deformity of reflective wave occurs, making the coherence inversion method unreliable. By using the event time from multi fold reflective stack the range of model parameters obtained by coherence inversion is limited in coherence inversion. Then by adjusting the initial values ​​of the model parameters to make the waveform from the coherence inversion method be consistent with that from the original reflective gathers, the result of the inversion becomes more reliable. The application of this method in processing the reflective gathers in Songzikou by the Jingjiang River of Hubei demonstrates the efficiency of the method.