Dynamic Marine Survey Spread Adjustment for Targeted Imaging
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Solution Overview
Problem
Current marine geophysical survey techniques do not dynamically manipulate the survey spread in response to changes in the distribution of targets beneath the water, which limits the optimization of acquired data and the clarity of images obtained during hydrocarbon exploration.
Innovation Solution
The method involves dynamically manipulating the survey spread by adjusting the depth and lateral positioning of streamers and energy sources in response to changes in the target's distribution, using a data processing system to determine the necessary adjustments based on pre-existing information or real-time data acquisition, allowing for optimized data collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the survey spread is fixed according to pre-determined factors, then the survey setup is simple and reliable, but the data acquisition is not optimized for changing target distributions
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a static, pre-determined survey spread to a dynamic, real-time adjusted spread. The survey spread is continuously manipulated based on real-time target distribution data, allowing the system to adapt to changing subsurface conditions during the survey, thereby improving adaptability without requiring complex manual reconfiguration
Solution Approach 2:
The patent implements feedback by using real-time target distribution information to adjust the survey spread dynamically. The system monitors target characteristics during data acquisition and uses this feedback to optimize the survey spread configuration, creating a closed-loop system that continuously improves data quality based on actual survey conditions
2Measurement precision
If multiple streamers are towed at fixed lateral distances, then the survey setup is straightforward, but the image clarity of targets is not optimized
Solution Approach 1:
The patent applies dynamics by changing the fixed lateral distances between streamers to variable distances based on real-time target distribution. This dynamic adjustment optimizes the spatial sampling of the survey spread to match the actual target locations, improving image clarity while maintaining operational simplicity through automated control
Solution Approach 2:
The patent implements local quality by adjusting the survey spread configuration locally around target areas. Instead of maintaining uniform spacing across the entire survey area, the system optimizes streamer positions specifically around detected targets, concentrating measurement precision where it is most needed while keeping other areas at standard configuration
3Productivity
If the survey spread is not dynamically adjusted, then the operation is simple and reliable, but the data acquisition efficiency is limited
Solution Approach 1:
The patent applies self-service by enabling the survey system to automatically adjust its own configuration based on real-time target data. The system performs self-optimization of the survey spread without requiring external manual intervention, improving data acquisition efficiency through automated feedback-driven adjustments while avoiding the complexity of manual reconfiguration processes
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
This approach enables a clearer image of the target to be obtained by optimizing the survey spread configuration, enhancing data acquisition efficiency and providing more accurate information for hydrocarbon recovery.
Implementation Method 1
the energy source may be actuated to generate, for example, seismic or electromagnetic energy that travels downwardly into the subsurface rock. Energy that interacts with interfaces, generally at the boundaries between layers of formations, may be returned toward the surface and detected by the geophysical sensors on the streamers
Implementation Method 2
The geophysical sensors may be operable to generate a signal that is related to a parameter being measured by the geophysical sensor. The detected energy may be used to infer certain properties of the target, such as structure, mineral composition and fluid content
Data Source
AI summary
Embodiments relate generally to marine geophysical surveying and, more particularly, embodiments relate to methods for acquiring geophysical data by dynamically manipulating survey spread in response a change in location of a target. A method may comprise actuating an energy source in a body of water, wherein a target for a marine geophysical survey system is located beneath a bottom of the body of water. The method may further comprise detecting energy generated by the energy source. The method may further comprise manipulating a position of a survey spread in response to a change in distribution of the target beneath the bottom of the body of water.