US 12,291,966 B1
Systems and methods for ranging and tracking while drilling multiple geological wells
Michael Montois, Bristol (GB)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Nov. 6, 2023, as Appl. No. 18/502,111.
Int. Cl. E21B 7/06 (2006.01); E21B 47/0228 (2012.01)
CPC E21B 7/062 (2013.01) [E21B 7/064 (2013.01); E21B 47/0228 (2020.05)] 20 Claims
OG exemplary drawing
 
18. A method, comprising:
operating a first rotary steerable tool to control a first drilling bit to drill a first well having a first well path, wherein the first rotary steerable tool comprises a first direction and inclination component comprising a first set of sensors configured to detect a static magnetic field, and a signal source configured to generate a source signal; and
operating a second rotary steerable tool to control a second drilling bit to simultaneously drill a second well having a second well path that tracks the first well path, wherein the second rotary steerable tool comprises a second direction and inclination component comprising a second set of sensors configured to detect the source signal, wherein sensors in the second set of sensors are spaced apart from one another at a plurality of axial positions, a plurality of azimuthal positions, or a combination thereof, wherein the second rotary steerable tool is configured to track the first rotary steerable tool at least based on differences in a signal travel time, a signal amplitude, or a combination thereof, of the source signal received at the second set of sensors.