High-Frequency VSP Technology and Near-Well Investigation in Western Siberia Fields

P214 High-frequency VSP technology and near-well investigation in Western Siberia fields Summary 1 The VSP method is based on the borehole seismic registration reflected waves extraction and imaging near-well medium (Galperin 1971 Hardage et al. 1983). VSP data gives an opportunity to obtain detailed information about the productive layer’s structure and to investigate the lateral changes of their properties in the vicinity of the well. To achieve this it is necessary to use precise acquisitions and quite sophisticated software for VSP processing and interpretation including the most important problems: wavefield separation velocity model reconstruction (including anisotropy) and imaging. Special acquisition