Summary

An extensive 3D VSP campaign was undertaken in one of the deep wells of the Sabriyah field in Kuwait. The objectives of the VSP were high-resolution imaging of a deep carbonate formation (over 15000ft deep) and to further analyze the VSP data to deduce anisotropy and information on maximum and minimum stress directions in the area. A 100-level three-component array tool was used to record the 3D vertical seismic profile (VSP) using a vibroseis source (Dutta et al., 2010). The initial processing of the dataset was revised using new processing flows, including a new application of statics and common image point (CIP) tomography, to optimize 3D VSP imaging. Maximum and minimum stress directions were determined by further analysis of the VSP data. The improved image and stress information provided a valuable aid to reservoir interpretation in the area.

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