Miorali et al. combine electromagnetic and reservoir modeling to investigate the GPR potential in monitoring the near-well region in oil production environments. The authors demonstrate that borehole radar sensor can successfully map the arrival of undesired fluids such as water and steam.

Wirianto et al. describe repeatability errors that mask the time-lapse signal due to hydrocarbon production in the application of controlled source electromagnetic on land. The authors demonstrate that at larger distances, the airwave provides sufficient illumination of the target and also present a simple and effective method to remove the primary airwave and its repeatability errors from the...

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