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Figure 2 – An azimuth-dependent analysis of PS data similar to that shown in figure 1 was done at each location having a solid circle with an accompanying short arrow. Each arrow shows the local azimuth in which PS reflectivity from interval A was a maximum. The rose diagrams show the fracture azimuths across intervals A and B as interpreted from FMI log data acquired in well C1. The S-wave-based fracture azimuths agree closely with the FMI-based fracture azimuths and allow fracture orientation to be extended across seismic image space.
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Figure 2 – An azimuth-dependent analysis of PS data similar to that shown in figure 1 was done at each location having a solid circle with an accompanying short arrow. Each arrow shows the local azimuth in which PS reflectivity from interval A was a maximum. The rose diagrams show the fracture azimuths across intervals A and B as interpreted from FMI log data acquired in well C1. The S-wave-based fracture azimuths agree closely with the FMI-based fracture azimuths and allow fracture orientation to be extended across seismic image space.