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

A method for characterizing a formation comprising:

• placing a tool in the formation;
• wherein the tool comprises a perpendicular antenna set, a parallel antenna set, and a rotational position sensor;
• wherein the perpendicular antenna set comprises at least one first transmitter antenna oriented perpendicular to at least one first receiver antenna and the parallel antenna set comprises at least one second transmitter antenna oriented parallel to at least one second receiver antenna;
• obtaining first data from the at least one first receiver antenna and second data from the at least one second receiver antenna;
• using the first data to determine a first compensated geosignal for the perpendicular antenna set and the second data to determine a second compensated geosignal for the parallel antenna set, the first compensated geosignal and the second compensated geosignal corresponding to a first formation characteristic;
• determining the first formation characteristic by comparing the first compensated geosignal and the second compensated geosignal.

A method for characterizing a formation comprising:

• placing a tool in the formation;
• wherein the tool comprises a perpendicular antenna set and a parallel antenna set;
• wherein the perpendicular antenna set comprises at least one first transmitter antenna oriented perpendicular to at least one first receiver antenna and the parallel antenna set comprises at least one second transmitter antenna oriented parallel to at least one second receiver antenna;
• obtaining a first data set comprising a first compensated geosignal and a second compensated geosignal corresponding to a first formation characteristic,
• wherein obtaining the first data set further comprises:
• obtaining first data from the at least one first receiver antenna and second data from the at least one second receiver antenna;
• using the first data to determine the first compensated geosignal for the perpendicular antenna set and the second data to determine the second compensated geosignal for the parallel antenna set;
• rotating the electromagnetic resistivity logging tool;
• obtaining a second data set comprising a third compensated geosignal and a fourth compensated geosignal corresponding to the first formation characteristic,
• wherein obtaining the second data set further comprises
• obtaining third data from the at least one first receiver antenna and fourth data from the at least one second receiver antenna;
• using the third data to determine the third compensated geosignal and the fourth data to determine the fourth compensated geosignal;
• determining the first formation characteristic based, at least in part, on a comparison of the first data set and the second data set.