Seismic Node Tray Assembly for Stable Transition-Zone Deployment
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Solution Overview
Problem
Conventional seismic sensors face challenges in transition zones due to periodic submersion, variable substrates, and high environmental loads, leading to instability, noise interference, and low signal-to-noise ratios, necessitating bulky and expensive marine nodes.
Innovation Solution
A seismic node assembly with a tray-like device holding lightweight, self-powered seismic nodes and removable weight blanks that securely couple to the ground, maintaining orientation and stability, enhancing signal-to-noise ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional marine nodes are used in transition zones, then stability and signal quality can be maintained, but the device becomes bulky and expensive
Solution Approach 1:
The seismic node assembly is divided into separate functional components: a tray-like holding device, removable weight blanks, and seismic nodes. This segmentation allows each component to be optimized independently - the tray provides structural support while the weight blanks provide stabilization without adding permanent bulk to the entire system.
Solution Approach 2:
The invention changes the parameter of weight by using removable weight blanks that can be added or removed based on deployment conditions. This allows the system to achieve necessary stability only when needed, rather than permanently carrying excess weight, thereby reducing overall device complexity and deployment burden.
2Measurement precision
If conventional marine nodes are used in transition zones, then signal quality can be maintained, but deployment costs increase
Solution Approach 1:
The invention employs lightweight, cost-effective seismic nodes that can be deployed in large numbers rather than using expensive conventional marine nodes. The tray-like holding device enables efficient deployment of multiple inexpensive nodes, achieving acceptable signal-to-noise ratios through statistical aggregation rather than relying on individual expensive nodes.
Solution Approach 2:
The invention changes the approach to signal quality by using multiple low-cost nodes instead of fewer high-cost nodes. This parameter change in deployment strategy allows achieving comparable measurement precision through increased node count and spatial distribution rather than through individual node sophistication.
3Device complexity
If lightweight seismic nodes are deployed in transition zones, then deployment cost is reduced, but stability and orientation maintenance become problematic
Solution Approach 1:
The invention uses removable weight blanks as counterweights to compensate for the lightweight nature of the seismic nodes and tray. These weights are strategically positioned to maintain proper orientation and stability during deployment in transition zones, allowing the system to remain lightweight during transport but stable during operation.
4Measurement precision
If a large number of seismic nodes are deployed using the tray-like device, then signal quality improves, but the device must handle increased environmental loads
Solution Approach 1:
The tray-like holding device is designed as a modular structure that can accommodate multiple seismic nodes. This segmentation allows the environmental loads to be distributed across multiple attachment points and structural elements, preventing any single component from bearing excessive force while maintaining the ability to deploy a large number of nodes for improved signal quality.
Data Source
AI summary
A device for holding one or more seismic nodes during a seismic survey includes a body having an outer surface configured to be seated against a surface of the ground during the seismic survey. In addition, the device includes a first receptacle extending from the outer surface into the body. Further, the device includes a second receptacle extending from the outer surface into the body. Each receptacle has a central axis. A first reference plane containing the central axis of the first receptacle is oriented perpendicular to the central axis of the second receptacle.