Downhole Optical Measurement System for High-Temperature Accuracy
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Solution Overview
Problem
Conventional downhole measurement systems face challenges in accurately determining the properties of substances due to the need for large support circuitry, which increases the size of the probe and reduces proximity to the substance's source, leading to inaccurate measurements, especially in high-temperature environments where multiple amplifiers are required for voltage amplification.
Innovation Solution
The system converts light interacting with a substance into voltage, then into the frequency domain, and ultimately into corresponding intensities, reducing the need for multiple amplifiers and resulting in smaller, more accurate circuits that can operate effectively in high-temperature environments by using a light to voltage converter, voltage to analog frequency converters, and analog to digital frequency converters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional downhole measurement systems use multiple amplifiers for voltage amplification, then measurement capability is maintained, but device size increases and measurement accuracy decreases
Solution Approach 1:
The patent replaces the conventional voltage amplification system (mechanical/electrical system requiring multiple amplifiers) with an optical system. Light interacts with the substance and the optical properties are measured directly, eliminating the need for complex voltage amplification circuitry. This substitution reduces device complexity while improving measurement accuracy by allowing the probe to be smaller and closer to the substance source.
2Measurement precision
If the probe is positioned closer to the substance source, then measurement accuracy improves, but the probe size must be reduced
Solution Approach 1:
The patent replaces the conventional electrical measurement system with an optical system that does not require large support circuitry. The light interaction method allows for a compact probe design that can be positioned very close to the substance source, thereby improving measurement accuracy while maintaining a small probe volume.
3Reliability
If multiple amplifiers are used for voltage amplification, then signal strength is maintained, but the system cannot operate effectively in high-temperature environments
Solution Approach 1:
The patent replaces the electrical voltage amplification system with an optical measurement system. Since the optical system does not rely on sensitive electronic amplifiers, it can operate reliably in high-temperature downhole environments where conventional electrical systems would fail or require excessive cooling and protection.
4Measurement precision
If the probe size is reduced to improve proximity, then measurement accuracy improves, but support circuitry becomes more difficult to manage
Solution Approach 1:
The patent replaces complex electrical support circuitry with an optical system. The light source and detector can be integrated into a compact probe with minimal support electronics, making the system easier to manufacture and manage while maintaining small size for improved measurement accuracy.
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 allows for more accurate and compact measurement systems that can operate closer to the substance's source, improving measurement accuracy and reducing the complexity of circuitry in high-temperature downhole environments.
Implementation Method 1
converts light interacting with a substance into voltage
Implementation Method 2
then into the frequency domain
Data Source
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AI summary
In a downhole environment, utilizing one or more ICE modules, in response to detecting light by one or more channels of a light to voltage converter, the detected light is converted into one or more voltages. The light has previously interacted with a downhole substance and has been processed by an integrated computational element. The one or more voltages are converted into one or more analog frequencies. The one or more analog frequencies are converted into one or more digital frequencies. One or more intensities are determined from one or more digital frequencies. One or more components of the substance are determined in response to the determined one or more intensities.