oa Crosswell Seismic Profiling: A Tool for High Resolution Reservoir Characterization and Monitoring

Crosswell seismic profiles provide a view of petroleum reservoirs that complements in resolution and coverage other geophysical data such as surface seismic, bore hole logs, and core data. See Figure 1. The technology is rapidly maturing and there are many applications in high resolution petroleum reservoir characterization, monitoring of steam recovery processes, monitoring of miscible gas floods, and in the delineation of gas storage fields. There are also numerous environmental applications. In this talk, I will review the state-of-the-art of the acquisition and processing technologies. New source technologies promise to deliver better data in less time and at lower cost. ew and improved processing methods, particularly of the reflections, are providing images capable of subtle qualitative and quantitative interpretations for reservoir properties. The integration of crosswell images through geostatistics and flow simulations is at the forefront of reservoir characterization science. While the continued development of the technology is being driven by applications, there are also many exciting research activities. I will identify some of this ongoing research and summarize the future needs.