Optical Corrosion Detection Using Integrated Computational Elements
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Solution Overview
Problem
Conventional methods for corrosion detection and formation evaluation in hydrocarbon exploration are labor-intensive, time-consuming, and costly, and require extensive laboratory analysis or the use of hazardous materials, making them unsuitable for real-time monitoring in downhole environments.
Innovation Solution
An Integrated Computational Element (ICE) based optical device that uses electromagnetic radiation to detect and monitor corrosion and formation characteristics in real-time by analyzing spectral data from samples, allowing for the determination of corrosion rates and formation properties without the need for additional equipment or hazardous materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional laboratory methods are used for corrosion measurement, then measurement precision is improved, but loss of time and device complexity increase
Solution Approach 1:
The patent replaces conventional mechanical laboratory testing methods with optical measurement techniques. Optical sensors and computational algorithms analyze corrosion characteristics through non-contact optical fields, eliminating the need for physical sample extraction, laboratory processing, and manual analysis, thereby achieving real-time measurement without time loss
Solution Approach 2:
The patent creates optical copies or images of corrosion characteristics through optical sensing. Instead of physically extracting and analyzing corrosion samples in laboratories, the system captures optical information about corrosion states and uses computational algorithms to interpret these optical copies, enabling instantaneous analysis without time-consuming physical testing
2Ease of operation
If conventional field testing methods are used, then ease of operation is improved, but measurement precision and device complexity worsen
Solution Approach 1:
The patent integrates multiple measurement functions into a single optical sensing system. The same optical sensor and computational algorithm can measure various corrosion characteristics (material loss, by-product concentration, surface changes) and perform formation evaluation, providing precise measurements while maintaining ease of operation through a unified multi-functional platform
3Measurement precision
If additional tools and equipment are used for formation evaluation, then measurement precision is improved, but device complexity and loss of energy increase
Solution Approach 1:
The patent employs a single optical sensing device that performs both corrosion measurement and formation evaluation functions. By using computational algorithms to interpret optical data, the system determines formation characteristics (porosity, fluid composition, rock properties) without requiring separate specialized tools, thereby reducing device complexity while maintaining measurement precision
Solution Approach 2:
The patent uses optical copying techniques to capture formation characteristics without physical intervention. Optical sensors detect and compute information about formation properties through optical interactions with formation materials, eliminating the need for complex mechanical sampling tools, core drilling equipment, or radioactive detection devices
4Measurement precision
If hazardous materials are used in conventional methods, then measurement precision is improved, but object-generated harmful factors increase
Solution Approach 1:
The patent replaces hazardous detection methods with optical sensing technology. Instead of using radioactive materials, chemical indicators, or other hazardous substances for formation evaluation and corrosion detection, the system uses optical fields and computational algorithms to achieve precise measurements, completely eliminating harmful factor generation
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
Enables real-time, cost-effective corrosion monitoring and formation evaluation in space-limited and power-constrained environments, reducing operational costs and eliminating the need for extensive laboratory analysis or hazardous materials.
Implementation Method 1
optically interacting electromagnetic radiation with a sample to produce sample-interacted light; optically interacting the optical element with the sample-interacted light to generate optically-interacted light which corresponds to a characteristic of the sample
Data Source
AI summary
An optical computing device and method for (1) determining and/or monitoring corrosion data in a given environment and (2) evaluating a downhole formation, both being accomplished in real-time by deriving the data from the output of an optical element.