Downhole Sensor Data Packet Indexing for Vibration Spectrum Reconstruction
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Solution Overview
Problem
Current downhole data transmission protocols are limited by bandwidth constraints, typically transmitting only peak-to-peak or average vibration values, which provide limited information about the operational health of downhole devices, whereas raw data transmission could offer a more comprehensive understanding.
Innovation Solution
A method and system that utilize sensors to collect and index raw data, forming data packets including indexed data and index information, and transmitting these packets in a predetermined segment of a communication protocol, allowing for the reconstruction of raw data spectra and providing a more comprehensive understanding of device health.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If only peak-to-peak or average vibration values are transmitted, then bandwidth constraints are satisfied, but information completeness about device health deteriorates
Solution Approach 1:
The patent segments the data transmission process into multiple components: index information (compact representation) and raw data portions (selectively transmitted). This segmentation allows the system to transmit essential data for spectrum reconstruction while managing bandwidth constraints, resolving the contradiction between transmission capacity and information completeness.
Solution Approach 2:
The patent applies preliminary action by computing and transmitting an index of the vibration data before transmitting the full raw data. This index serves as a compact representation that enables selective reconstruction of vibration spectra, allowing comprehensive health assessment while maintaining bandwidth efficiency.
2Loss of information
If raw vibration data is transmitted in full, then information completeness about device health is improved, but bandwidth consumption increases
Solution Approach 1:
The patent extracts the essential characteristics of vibration data by computing an index that captures the spectral content. This extracted index enables reconstruction of vibration spectra without transmitting the complete raw data set, thereby providing comprehensive health information while significantly reducing bandwidth consumption.
Solution Approach 2:
The patent creates a compact copy or representation of the vibration data through indexing. This index acts as a surrogate that contains sufficient information for spectral analysis and health assessment, eliminating the need to transmit the full raw data while maintaining diagnostic capability.
3Measurement precision
If comprehensive raw data is collected and transmitted, then diagnostic capability is improved, but communication protocol complexity increases
Solution Approach 1:
The patent segments the communication protocol into distinct functional segments: index information transmission, data portion transmission, and reconstruction processes. This segmentation organizes the complex data flow into manageable components, improving diagnostic capability while maintaining protocol tractability through structured data organization.
Data Source
AI summary
A method of managing data obtained in a borehole is provided. The method includes monitoring a characteristic with at least one sensor and obtaining raw data therefrom; indexing the raw data with the at least one sensor; recording the indexed data with the at least one sensor; forming a data packet with the at least one sensor, the data packet including at least a portion of the indexed data and index information; and transmitting the data packet in a predetermined segment of a communication protocol.