Five-Component Marine Hydrate Sensing Node for Accurate Data Monitoring
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Solution Overview
Problem
Current ocean bottom nodes used for marine natural gas hydrate prospection lack the capability to accurately collect and monitor essential parameters like marine temperature and are prone to data loss due to blind operation, leading to inefficient and costly data acquisition processes.
Innovation Solution
A five-component marine natural gas hydrate intelligent sensing node featuring a titanium alloy compartment with integrated sensors, including a three-axis geomagnetic sensor, inclinometer, temperature sensor, broadband seismometers, and high-sensitivity hydrophone, along with an intelligent control chip for real-time data processing and transmission, enabling comprehensive data collection and monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional ocean bottom nodes are used for marine natural gas hydrate prospection, then seismic wave information can be acquired, but important information such as marine temperature is absent
Solution Approach 1:
The sensing node integrates multiple detection functions (seismic wave detection, temperature measurement, pressure detection, etc.) into a single device. The sensor unit includes a three-axis geomagnetic sensor, inclinometer, temperature sensor, three-component broadband seismometers, and hydrophone, allowing the node to acquire diverse parameters simultaneously without requiring separate deployment of multiple specialized devices
2Productivity
If conventional ocean bottom nodes operate blindly with pre-set parameters, then data collection can be performed, but timely monitoring and evaluation is not possible leading to data loss
Solution Approach 1:
The sensing node incorporates an integrated control chip that receives real-time feedback signals from the sensor unit, processes data locally, and can immediately respond to abnormal conditions. The control chip can detect when sensors are malfunctioning or when hydrate indicators exceed threshold values, and can trigger immediate alerts or adjust measurement parameters, ensuring data completeness and enabling timely monitoring without waiting for manual retrieval
Solution Approach 2:
The sensing node is designed with autonomous capabilities where the integrated control chip performs self-diagnosis and self-monitoring functions. The node can automatically evaluate its own working status, detect potential failures, and manage its own data collection processes without requiring external intervention from the exploration ship, thereby maintaining continuous reliable operation
3Measurement precision
If new navigation ships and other equipment are deployed to collect temperature information, then marine temperature data can be obtained, but the process is time-consuming and brings huge cost
Solution Approach 1:
The patent merges temperature detection functionality with the existing ocean bottom node platform. The temperature sensor is integrated into the sensor unit of the sensing node, allowing temperature data to be collected simultaneously with seismic wave data during the same deployment operation. This eliminates the need for separate temperature measurement campaigns using additional navigation ships or equipment
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows for accurate and timely monitoring of natural gas hydrate indicators, preventing data loss and enhancing exploration efficiency, while the temperature sensor improves detection accuracy, making the process more reliable and cost-effective for hydrate prospection and oil and gas reservoir exploration.
Implementation Method 1
a sensor unit including a three-axis geomagnetic sensor
Implementation Method 2
the three-component broadband seismometers comprises an acceleration detector, a piezoelectric detector and an MEMS detector
Implementation Method 3
a hydrophone of high sensitivity
Implementation Method 4
a temperature sensor, three-component broadband seismometers
Data Source
AI summary
The present invention provides a five-component marine natural gas hydrate intelligent sensing node, comprising a titanium alloy compartment, an information acquisition unit, an integrated control chip, and a power module; the integrated control chip comprises an intelligent computing unit and a transmission unit; the intelligent computing unit is configured for acquiring quality monitoring indicators of marine natural gas hydrates by feature extraction and transmitting reduced represented features to a monitoring device on the sea surface via the transmission unit. The present invention has overcome problems of impossible timely quality monitoring due to blind acquisition process, promised a controllable undersea node working status, and acquired data are complete without any loss, which doesn't only facilitate nonconventional energy resources such as marine hydrates prospection, and is also of great application prospect and value in oil and gas resources exploration, geological hazards precautions and evaluation.