X-ray Backscatter Imaging in Scattering Media
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Solution Overview
Problem
Current methods for obtaining a three-dimensional representation of objects within hydrocarbon exploration or production wells face challenges due to high temperatures, pressures, and opaque fluids, leading to inaccurate and time-consuming data collection, with existing techniques either lacking composition information, providing limited view depth, or requiring costly and time-consuming fluid replacement.
Innovation Solution
A system utilizing high energy electromagnetic radiation, with a narrow pencil-shaped beam and corresponding detector field-of-view, minimizes scattered radiation from the fluid to achieve clearer three-dimensional imaging of objects embedded deep within the well, by restricting the radiation source and detector field-of-view to a small, localized volume, allowing for timely and accurate visualization of object shape and composition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If high energy electromagnetic radiation is used to penetrate opaque fluids, then the ability to image objects deep within the well is improved, but the amount of scattered radiation from the fluid increases, degrading image quality
Solution Approach 1:
The system divides the detection process into discrete measurement steps by moving the detector through multiple positions along the well. Each position captures data from a specific segment of the object, allowing the system to reconstruct the complete image by combining segmented measurements. This segmentation enables the system to overcome scattered radiation by focusing detection at specific locations rather than attempting to capture the entire object at once.
Solution Approach 2:
The invention transitions from a single-point detection approach to a multi-dimensional detection strategy by moving the detector through various positions and orientations. This dimensional approach allows the system to sample the object from multiple angles and depths, reconstructing three-dimensional information while filtering out scattered radiation through spatial analysis of the measurement patterns.
2Object-affected harmful factors
If the radiation source and detector field-of-view are restricted to a small localized volume, then scattered radiation from the fluid is minimized, but the complexity of the system increases
Solution Approach 1:
The system employs dynamic movement of the detector through the well environment, adjusting its position and orientation during operation. This dynamic capability allows the detector to adapt to different measurement requirements, access different regions of the object, and optimize the balance between localized detection (to minimize scattered radiation) and comprehensive coverage (to reduce system complexity).
Solution Approach 2:
The system incorporates feedback mechanisms that monitor the quality of measurements and adjust detection parameters in real-time. By analyzing the signal characteristics and scattering patterns, the system can automatically optimize detector positioning and field-of-view settings, reducing the need for complex manual intervention while maintaining minimal scattered radiation detection.
3Reliability
If traditional imaging methods are used in high temperature and pressure environments, then the equipment must be robust, but the data collection becomes time-consuming and expensive
Solution Approach 1:
The invention replaces traditional mechanical probing methods with electromagnetic radiation-based imaging. This substitution eliminates the need for physical contact with the object, allowing imaging to be performed remotely through the well fluids without mechanical interference. The electromagnetic methods provide faster data collection while maintaining equipment reliability in harsh environments, as the imaging tools can be lowered into the well without requiring complex mechanical manipulation systems.
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
The method provides clear, three-dimensional visualizations of objects deep within the well without the need for expert interpretation, offering improved image clarity and increased viewing depth, while reducing the impact of scattered radiation from the fluid, enabling more efficient and accurate data collection.
Implementation Method 1
a source of electromagnetic radiation of sufficiently high energy as to penetrate through a medium in which an object is disposed
Implementation Method 2
backscatter imaging of an object embedded in a highly scattering medium
Data Source
AI summary
An apparatus and associated method for obtaining a three-dimensional representation of a target object within a fluid-carrying conduit, such as a hydrocarbon exploration or production well, using high energy photons is provided. The representation is essentially a three-dimensional image that achieves visualization of the shape of the target object despite the intervening opaque fluids located between the imaging tool and the object. In one specific though non-limiting embodiment, a narrow, pencil-shaped beam of radiation is scanned in coordination with a similarly narrow detector field-of-view in order to sample the radiation-scattering properties of only a small volume of material at any given time. The result is a clearer visualization with a greater viewing depth.