Trajectory control for directional drilling using formation evaluation measurement feedback
AssigneeHalliburton Energy Services, Inc.
InventorsUmut Zalluhoglu, Wei Zhang, Mevis Juliana Tarazona Mercado, Richard T. Hay
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Abstract
A method for controlling a drilling trajectory of a wellbore includes receiving a target trajectory reference of a drill bit within a wellbore from a formation model. The method also includes receiving real-time formation evaluation measurements from at least one sensor positioned within the wellbore and computing a target trajectory set-point change based on the real-time formation evaluation measurements. Further, the method includes generating a target trajectory from the target trajectory reference and the target trajectory set-point change and steering the drill bit using the target trajectory.
Claims20
A system comprising:
- at least one formation property sensor positionable at a bottom hole assembly within a wellbore to detect at least one formation property at the bottom hole assembly;
- a rotary steerable system positionable within the wellbore to steer a drill bit;
- a processing device positionable to communicatively couple to the at least one formation property sensor and the rotary steerable system;
- and
- a memory device comprising instructions that are executable by the processing device for causing the processing device to:
- receive a target trajectory reference from a formation model;
- receive sensor signals from the at least one formation property sensor representing the at least one formation property;
- compute a trajectory set-point change using the at least one formation property;
- compute a target trajectory using the target trajectory reference and the trajectory set-point change;
- and
- transmit the target trajectory to the rotary steerable system to steer the drill bit.
A method comprising:
- receiving a target trajectory reference of a drill bit within a wellbore from a formation model;
- receiving formation evaluation measurements from at least one sensor positioned within the wellbore;
- computing a target trajectory set-point change based on real-time formation evaluation measurements;
- generating a target trajectory from the target trajectory reference and the target trajectory set-point change;
- and
- steering the drill bit using the target trajectory.
A non-transitory computer-readable medium comprising program code that is executable by a processing device for causing the processing device to:
- receive a target trajectory reference from a formation model;
- receive sensor signals from at least one sensor representing a gamma-ray count, a resistivity, a density, a nuclear magnetic resonance, or a combination thereof of a formation surrounding the at least one sensor;
- compute a trajectory set-point change using the gamma-ray count, the resistivity, the density, the nuclear magnetic resonance, or the combination thereof;
- compute a target trajectory using the target trajectory reference and the trajectory set-point change;
- and
- transmit the target trajectory to a rotary steerable system to steer a drill bit.
Dependencies are inferred from the claim text.