Telemetry Replay for Drilling Data Recovery
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Solution Overview
Problem
Telemetry data loss occurs due to noisy and changing environments in drilling operations, leading to inefficiencies and data loss, as current systems struggle to recognize synchronization patterns and decode bitstreams effectively, resulting in the need to restart drilling processes.
Innovation Solution
A method and system for supplemental processing of recorded historical data in real-time to fill gaps in lost data by reprocessing analog or digitized waveforms with adjusted settings, allowing for immediate recognition and correction of data issues without halting operations, applicable to various telemetry modes including mud-pulse, electromagnetic, and wired drill pipe telemetry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If telemetry data is transmitted in noisy and changing environments, then data transmission occurs, but data loss and decoding errors occur
Solution Approach 1:
The system records and stores telemetry data in real-time as it is received, creating a backup record before potential loss occurs. This preliminary recording action enables later replay and reprocessing of the data using different demodulation settings, thereby recovering data that may have been lost or incorrectly decoded during noisy transmission periods
Solution Approach 2:
The system employs multiple demodulation settings with different parameters (such as varying filter bandwidths, threshold levels, and synchronization patterns) to reprocess recorded telemetry data. By changing these processing parameters, the system can successfully decode data that failed under initial demodulation settings, thereby overcoming noisy environment interference
2Reliability
If drilling processes are restarted to resynchronize surface systems, then synchronization is restored, but drilling efficiency and productivity are reduced
Solution Approach 1:
The system continuously records telemetry data in real-time during drilling operations, maintaining a stored record that can be replayed later. This preliminary data capture eliminates the need to restart drilling operations for resynchronization, as the recorded data can be reprocessed to recover lost information while drilling continues uninterrupted
Solution Approach 2:
The system creates a copy of the telemetry data stream by recording it in real-time. This copied data can then be replayed and reprocessed multiple times with different demodulation settings without affecting the ongoing drilling operation, thereby maintaining productivity while ensuring data integrity
3Measurement precision
If manual intervention is used to diagnose and correct telemetry issues, then data quality improves, but time loss and operational delays occur
Solution Approach 1:
The system automatically detects when telemetry data quality deteriorates and initiates replay operations using alternative demodulation settings without requiring manual intervention. The automated system monitors data quality metrics, selects appropriate recovery strategies, and reprocesses recorded data, thereby maintaining high data quality while minimizing operational delays
Solution Approach 2:
The system implements a feedback mechanism that continuously monitors the quality of demodulated telemetry data. When quality thresholds are not met, the feedback loop triggers automatic replay operations with different demodulation parameters. This closed-loop control ensures high data quality while eliminating the need for time-consuming manual diagnosis and correction
Data Source
AI summary
The present disclosure provides a method and system for supplemental processing of recorded historical data in real time to fill in gaps of lost data. A user who may be monitoring the data from human interfaces can immediately recognize an issue, quickly change one or more settings for parameters (including changing one or more of the parameters), and replay for reprocessing the recorded data to provide a revised output that can catch up to the processing of later current data without needing to halt operations. In at least one field of use, the invention can eliminate the need for restarting a complete drilling process to resynchronize the surface system when the system is not able to demodulate a valid bitstream, saving time and maintaining high drilling efficiency.