US 12,345,847 B2
Downhole logging using symmetric and asymmetric compensated resistivity measurements
Thomas Kruspe, Celle (DE); Martin Folberth, Celle (DE); Sushant M. Dutta, Sugar Land, TX (US); Andreas Hartmann, Celle (DE); and Holger F. Thern, Celle (DE)
Assigned to Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed by Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed on May 23, 2023, as Appl. No. 18/200,789.
Claims priority of provisional application 63/344,773, filed on May 23, 2022.
Prior Publication US 2024/0004100 A1, Jan. 4, 2024
Int. Cl. G01V 3/30 (2006.01); G01V 3/38 (2006.01)
CPC G01V 3/30 (2013.01) [G01V 3/38 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for downhole electrical logging, comprising:
a tool body;
an antenna arrangement located on the tool body, the antenna arrangement comprising two or more receiver antennas and two or more transmitter antennas; and
at least one processor within the tool body to execute instructions to cause the system to:
determining one or more compensated measurements from the antenna arrangement, wherein the one or more compensated measurements have a plurality of depths of investigations (DOIs), wherein a first number of DOIs in the plurality of DOIs is larger than a product of a second number that is of the two or more receiver antennas and that is divided by two, and of a third number that is of the two or more transmitter antennas and that is divided by two.