Methods and systems for determining formation parameters using a rotating tool equipped with tilted antenna loops

摘要

Abstract Methods and systems for characterizing a formation are disclosed. A tool is placed in the formation. The tool comprises a perpendicular antenna set and a parallel antenna set. The perpendicular antenna set comprises at least one transmitter antenna oriented perpendicular to at least one receiver antenna and the parallel antenna set comprises at least one transmitter antenna oriented parallel to at least one receiver antenna. Data is obtained from the tool and used to determine a compensated geosignal for each of the perpendicular antenna set and the parallel antenna set. The determined compensated geosignal is used to characterize the formation. BOREHOLE AXIS 160z 2 ==E ~z~zzinz~i24 18 16 }18 51G y+