| 摘要 |
Methods and systems for reducing shoulder effect are disclosed. Some method embodiments include obtaining resistivity logging data corresponding to a resistivity logging tool's position in a formation position; performing an anisotropic single-layer inversion on the resistivity logging data to determine a horizontal resistivity, a vertical resistivity, and a dip angle of the formation at the tool's position; detecting a location of a boundary of the formation and performing a vertical multi-layer inversion based on the resistivity logging data in a window around said location, if a residual error for the anisotropic inversion exceeds a threshold; and displaying a log of at least one inversion parameter from the anisotropic inversion or the vertical inversion based on said residual error. |
