Depth-Based Borehole Trajectory Control for Precise Well Steering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current drilling technologies face challenges in achieving precise control over borehole trajectory, particularly in terms of depth, inclination, azimuth, and distance to geological formations or adjacent boreholes, leading to inefficiencies and inaccuracies in hydrocarbon production and geothermal operations.
Innovation Solution
A system and method for controlling borehole trajectory using a drilling system with a drill string, downhole sensors, and a surface control unit that processes data from various sensors to adjust drilling parameters in real-time, employing depth-based control algorithms to maintain precise orientation and geometry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If real-time sensor data processing and depth-based control algorithms are implemented, then borehole trajectory precision is improved, but system complexity and computational requirements increase
Solution Approach 1:
The system pre-calculates depth-based control parameters and trajectory targets before drilling operations begin. The control algorithm pre-determines the optimal borehole path through geological formations, allowing real-time execution without complex on-the-fly computations. This preliminary preparation reduces computational burden during actual drilling while maintaining high trajectory precision.
Solution Approach 2:
The patent introduces an intermediary processing layer between raw sensor data and control actuation. Depth-based control algorithms serve as intermediaries that translate complex multi-sensor inputs into simplified control commands. This intermediary layer filters and processes information systematically, reducing the complexity of direct control system architecture while achieving precise trajectory management.
2Manufacturing precision
If continuous real-time monitoring and adjustment of drilling parameters is performed, then borehole geometry control is improved, but data processing time and computational resources increase
Solution Approach 1:
The control system pre-establishes depth-based parameter profiles and geometric targets before drilling commences. By pre-calculating optimal drilling parameters at various depth intervals, the system eliminates the need for complex real-time optimization computations, significantly reducing data processing time while maintaining precise geometry control.
Solution Approach 2:
The patent transforms the control problem from time-based continuous adjustment to depth-based discrete parameter management. By changing the independent variable from time to depth, the system simplifies parameter adjustment intervals and reduces computational frequency requirements, thereby decreasing processing time while preserving geometric accuracy.
3Measurement precision
If advanced depth-based control algorithms are used, then drilling accuracy is improved, but computational power requirements increase
Solution Approach 1:
Complex computational tasks are performed in advance during system setup and planning phases. Depth-based control parameters, trajectory calculations, and parameter profiles are pre-computed using high-performance computing resources before deployment to the drilling system. This shifts computational power requirements from operational real-time processing to offline preparation, reducing energy consumption during actual drilling operations.
Solution Approach 2:
The patent extracts computationally intensive algorithms from the real-time control system and places them in offline pre-processing environments. By separating heavy computational tasks from operational control, the system maintains high drilling accuracy while minimizing real-time power consumption. Only simplified execution of pre-computed parameters remains in the operational system.
Data Source
Figure 1A~2
Figure 1B~3
Figure 4~5
AI summary
Methods and apparatuses for controlling a trajectory of a borehole being drilled into the earth are provided. The apparatus includes a drilling system including a drill tubular, a disintegrating device, and a steering system coupled to the drill tubular configured to steer the drilling system, the drilling system configured to drill the borehole by receiving control outputs from at least one control unit for controlling parameters of the drilling system, the at least one control unit configured to provide the control outputs to the steering system, the at least one control unit being configured to provide depth-based control.