Abstract：The stratigraphic interpretation of the seismic sections across Wang 50 turbidite lens，which were processed by relative amplitude preservation in high wide band, draws a conclusion that the turbidite sand lens associated with delta lies at the plunging part of oblique reflections from delta front，and is characterized by short gentle sloping reflections, The turbidite sand lens can be analysed by integrating the seismic modeling with drilling data.The boundary of the lens can be qualitatively located using the waveform characters shown by seismic modeling, Finally, the isopach map of the turbidite lens can be plotted by quantitatively interpreting the amplitudes on seismic sections using quantitative interpretation template made from seismic modeling, However, before the quantitative amplitude interpretation, the amplitude normalization of all seismic sections should be made starting from the section across well, Wang 50 turbidite sand lens is different from atypical sand wedge embeded in mudstone; therefore, no amplitude maximizing due to ‘tuning' occurs at 1/4 wavelength thickness on the quantitative interpretation template.
收稿日期: 1985-05-29
引用本文:
刘雯林, 刘正昕. 浊积砂岩透镜体的地震判据和定量解释[J]. 石油地球物理勘探, 1986, 21(2): 181-188,196.
Liu Wenlin, Liu Zhengxin. The seismic criteria of turbidite sand Lens and the quantitative interpretation. OGP, 1986, 21(2): 181-188,196.
