US 11,913,335 B2
Apparatus and method for drilling a wellbore with a rotary steerable system
Volker Peters, Wienhausen (DE)
Assigned to Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed by Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed on Jun. 3, 2021, as Appl. No. 17/338,378.
Claims priority of provisional application 63/034,499, filed on Jun. 4, 2020.
Prior Publication US 2021/0381314 A1, Dec. 9, 2021
Int. Cl. E21B 7/06 (2006.01); E21B 47/024 (2006.01); E21B 44/02 (2006.01)
CPC E21B 7/06 (2013.01) [E21B 44/02 (2013.01); E21B 47/024 (2013.01)] 20 Claims
OG exemplary drawing
 
18. A method of using an apparatus in a wellbore, comprising:
disposing a drill string in the wellbore, the drill string being configured to drill the wellbore, wherein the drill string includes:
a non-rotating section disposed along the drill string, the non-rotating section having a bore and at least one biasing element configured to engage a wall of the wellbore,
a rotating section disposed in the bore of the non-rotating section,
at least one relative rotation sensor configured to generate signals representative of a relative rotation between the rotating section and the non-rotating section,
at least one orientation sensor in the non-rotating section and configured to generate signals representative of an orientation of the non-rotating section relative to a selected frame of reference, and
a controller in signal communication with the at least one relative rotation sensor and the at least one orientation sensor;
varying a speed of the rotation of the rotating section to transmit a control signal;
using the controller to determine the control signal using the at least one relative rotation sensor;
receiving energy within the non-rotating section from the rotation of the rotating section and controlling a force and/or position of the at least one biasing element by using the determined control signal and the generated signals representative of the orientation of the non-rotating section relative to the selected frame of reference from the at least one orientation sensor.