A wider range of frequencies, combined with multicomponent data, are helping geoscientists peer beneath complex overburdens. Broadband acquisition techniques have provided a step-change in seismic image quality of similar magnitude to the earlier changes from 2-D to 3-D and from narrow - to wide-azimuth (WAZ) acquisition. The value of broadband data is recognized for almost all seismic applications, and especially for deepwater environments, where the targets are frequently below complex overburdens. Imaging these deep targets is challenging as only a limited range of frequencies can penetrate to them, making recording and preservation of the low frequencies essential. However, high frequencies also are required to provide detailed images of the overburden and near-surface to obtain good velocity models for accurate imaging and so that drilling hazards can be avoided.
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