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Seismic inversion of the Fortuna National 3D survey (Tabasco, Mexico)

机译:Fortuna National 3D测量的地震反演(墨西哥塔巴斯科)

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A stratigraphic deconvolution has been carried out on the Fortuna National 3D seismic cube (Fig. 1) in collaboration with the Pemex Macuspana exploration business unit. The seismic inversion processing enabled a relationship to be established between the reservoir parameters, the acoustic impedance and the seismic response. In stratigraphic deconvolution processing, the 'classic' wiggle trace is replaced by a spiky response corresponding to a blocked acoustic impedance (AI) output. The spikes are coincident with those AI contrasts that are well aligned with meaningful geological boundaries. This is because the tuning effects of thin beds have effectively been removed in the inversion scheme. The procedure enhances the seismic resolution and discrimination potential in the zone under investigation. Seismic amplitudes should be preserved during the processing (see Hilterman 2001).
机译:与Pemex Macuspana勘探业务部门合作,在Fortuna National 3D地震立方体(图1)上进行了地层反卷积。地震反演处理使得能够在储层参数,声阻抗和地震响应之间建立关系。在地层反卷积处理中,“经典”摆动轨迹被对应于阻塞声阻抗(AI)输出的尖峰响应代替。峰值与那些与有意义的地质边界很好地对齐的AI对比重合。这是因为在反演方案中已有效消除了薄层床的调谐效果。该程序提高了被调查区域的地震分辨率和识别潜力。在处理过程中应保持地震振幅(见Hilterman 2001)。

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