Crosswell Seismic Application in Unconventional reservoirs

The combination of high resolution products derived from crosswell seismic technology provides operators the ability to not only assess the structural complexity of their unconventional reservoir but also assess the fluid saturation within it. We present a study using velocity, reflectivity and frequencies to optimize the imaging of an oilsand and a bitumen-saturated carbonate reservoir. The velocity tomogram, attenuation coefficient tomogram, and Q distribution values have been obtained for both reservoir types using tomographic methods. High resolution reflection images correlate with anomalies identified in both the velocity and attenuation tomograms. The extraction of accurate attenuation values could be useful for elastic and viscoelastic studies applied not only for unconventional resources, but also for all the stages of the reservoir lifecycle.