Patent ID: 11879333
Assignee: NATIONAL OILWELL VARCO, L.P.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A rotary steerable drilling assembly for directional drilling, comprising:
a driveshaft rotatably disposed in a driveshaft housing;
a bend adjustment assembly coupled to the driveshaft housing;
a bearing mandrel coupled to the bend adjustment assembly; and
a torque control assembly comprising:
a rotor configured to couple with a drill string;
a stator assembly coupled to downhole motor; and
a torque control actuator assembly configured to control the amount of torque transmitted between the rotor and the stator assembly;

wherein the bend adjustment assembly includes a first position configured to provide a first deflection angle between a longitudinal axis of the driveshaft housing and a longitudinal axis of the bearing mandrel;
wherein the bend adjustment assembly includes a second position configured to provide a second deflection angle between the longitudinal axis of the driveshaft housing and the longitudinal axis of the bearing mandrel, the second deflection angle being different from the first deflection angle; and
wherein the torque control assembly comprises a first mode configured to adjust an angular orientation of the drilling assembly within a wellbore, and a second mode configured to hold the angular orientation of the drilling assembly within the wellbore, and wherein the torque control assembly is actuated between the first mode and the second mode in response to altering a rotational rate of the drill string.