Directional Drilling Actuation Assembly Deviation Correction
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Solution Overview
Problem
Rotary steerable motor systems used in directional drilling face efficiency degradation over time, leading to less than ideal directional control and reduced build-up rates during drilling operations, affecting the accuracy and reliability of borehole formation.
Innovation Solution
A system with a module having an actuation assembly that applies force to the borehole wall to adjust the drill bit direction, featuring a processor that adjusts the actuation assembly's configuration based on sensor data to maintain the predetermined drilling direction, and a method that includes rotating the drill bit, determining deviations, and actuating the actuation assembly to redirect the drill bit accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rotary steerable motor systems are used for directional drilling, then directional control capability is improved, but operational efficiency degrades over time leading to reduced build-up rates
Solution Approach 1:
The actuation assembly is configured to transition between active and inactive configurations dynamically, allowing the system to adapt its force application to maintain optimal build-up rates despite operational degradation over time
Solution Approach 2:
The system changes operational parameters by adjusting the extent of actuation assembly activation based on measured build-up rates, transforming a static system into one that dynamically modifies its control characteristics to compensate for degradation
2Manufacturing precision
If actuation assembly force is increased to improve directional control, then drilling direction accuracy is improved, but system complexity and operational complexity increase
Solution Approach 1:
The system measures its own operational parameters (build-up rate) and automatically adjusts actuation assembly activation extent to maintain target build-up rate, enabling self-regulating directional control without complex external intervention
Solution Approach 2:
The system incorporates sensors to measure build-up rate and uses this feedback to continuously adjust the actuation assembly activation extent, creating a closed-loop control system that maintains drilling direction accuracy
3Reliability
If continuous monitoring and adjustment of actuation assembly is implemented, then directional control reliability is improved, but energy consumption and operational complexity increase
Solution Approach 1:
The system implements periodic measurement of build-up rate and adjustment of actuation assembly activation, rather than continuous operation, reducing energy consumption while maintaining reliable directional control through interval-based feedback
Data Source
AI summary
A system and method can include a module including at least one actuation assembly configured to transition between an inactive configuration and an active configuration. The system include at least one sensor configured to obtain data that is indicative of an operating parameter, and at least one processor configured to be electronically coupled to the guidance module and the at least one sensor. The at least one processor is configured to, in response to 1) input received from the at least one sensor that is indicative of the measured operating parameter, and 2) received input that is indicative of an actual drilling direction that is deviated from the predetermined drilling direction, adjust an extent that the actuation assembly is in the active configuration.