Marine Source Towing Front Float Buoyancy and Drag Reduction
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Solution Overview
Problem
Current marine survey systems face inefficiencies due to drag caused by lines and cables used to tow sources and receivers, which reduces system efficiency and limits the ability to accurately position and power sources in marine seismic exploration.
Innovation Solution
A marine survey system incorporating a front float that houses multiple components, including winches and a control unit, allowing for adjustable positioning of sources and accommodation of electrical energy transfer via cables, enabling cross-line and in-depth distribution of sources while providing buoyancy and steering control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If lines and cables are used to tow sources and receivers through water, then sources and receivers can be positioned and powered, but drag is caused that reduces system efficiency
Solution Approach 1:
The patent applies buoyancy as a counteracting force to offset the drag caused by lines and cables. The float provides upward buoyant force that counterbalances the downward pull of gravity on the sources, reducing the tension and drag on the towing lines. This allows sources to be positioned at desired depths with reduced energy loss to drag.
Solution Approach 2:
The float acts as an intermediary device between the towing vessel and the sources. It houses the sources and provides a platform that reduces the direct drag impact on the sources by distributing forces and providing buoyant support, thereby mediating the interaction between the towing system and the sources.
2Adaptability or versatility
If multiple sources are towed using separate lines, then each source can be independently positioned, but the complexity of the towing system increases
Solution Approach 1:
The patent combines multiple sources into a single integrated towing unit (the float). Multiple sources are mounted on the same float structure and towed together as one assembly rather than as separate individually-towed sources. This merging reduces the number of separate lines and control systems needed while maintaining the ability to position the group of sources collectively.
Solution Approach 2:
The float serves multiple functions simultaneously: it provides buoyancy to support the sources, houses the sources, acts as a towing platform, and can provide structural support for positioning mechanisms. This multi-functionality reduces the need for separate specialized equipment for each function, thereby reducing overall system complexity.
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
Enhances the efficiency of marine survey operations by reducing drag, allowing for precise positioning and power supply to sources, thereby improving data collection and reducing equipment limitations.
Implementation Method 1
A source towing arrangement includes a front float that may be coupled to a plurality of sources
Implementation Method 2
a plurality of winches configured to adjust positions of the plurality of sources
Data Source
Figure 1
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AI summary
A system can include a source and a front float coupled to the source. The front float can include a winch configured to adjust a position of the source. The front float can include a control unit configured to control functions associated with the front float. Lead-ins can be coupled to the front float and the source and configured to accommodate transfer of electrical energy between the front float and the source.