Doped Polymeric Coating for Slickline Wear Detection
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Solution Overview
Problem
Existing slickline coatings used in well drilling and hydrocarbon recovery operations lack effective methods for identifying and evaluating damage, leading to reduced lifespan and efficiency.
Innovation Solution
The implementation of a polyether ether ketone (PEEK) or similar polymer coating with added dopants, such as conductive elements or elemental tracers, that can be detected using machines like eddy current or X-ray fluorescence devices, allowing for the identification of coating damage and wear, and the use of multiple layered coatings with different dopants for enhanced detection and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a polymeric coating is applied to protect the slickline from mechanical wear, then the slickline's durability is improved, but there is no method to identify and evaluate damage to the coating
Solution Approach 1:
The patent incorporates dopants such as conductive elements or elemental tracers into the polymeric coating that change detectable properties when the coating is damaged. These dopants enable the coating to signal its integrity status through measurable changes, allowing real-time monitoring of coating condition without requiring complex inspection procedures.
Solution Approach 2:
The patent implements a monitoring system that uses detection devices to continuously assess the condition of the slickline coating. The system provides feedback about coating integrity by detecting the presence or absence of dopants, enabling operators to evaluate damage and determine when the slickline requires replacement or maintenance.
2Measurement precision
If multiple layered coatings with different dopants are used for enhanced detection, then the measurement precision of coating damage is improved, but the device complexity increases
Solution Approach 1:
The patent divides the coating system into multiple functional layers, each containing specific dopants designed to detect different types or stages of damage. This segmentation allows each layer to perform a specialized detection function, improving overall measurement precision while maintaining a modular structure that simplifies the detection process.
Solution Approach 2:
The patent uses composite coating structures combining multiple polymeric materials with different dopants embedded throughout. These composite coatings provide enhanced detection capabilities by leveraging the complementary properties of different materials and dopants, achieving high measurement precision through material composition rather than structural 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
This solution extends the lifespan of slicklines by enabling real-time monitoring and evaluation of coating integrity, preventing fluid intrusion and mechanical wear, thereby improving operational reliability and efficiency.
Implementation Method 1
conductive elements or elemental tracers, that can be detected using machines like eddy current or X-ray fluorescence devices
Implementation Method 2
conductive elements or elemental tracers, that can be detected using machines like eddy current or X-ray fluorescence devices
Data Source
AI summary
In accordance with embodiments of the present disclosure, a slickline for use in well drilling and hydrocarbon recovery operations includes a cable and an intermediate layer disposed around the cable. The slickline also includes a doped polymeric coating layered around the intermediate layer. The doped polymeric coating is a different material from the intermediate layer, and the doped polymeric coating includes a polymeric material doped with an element that is detectable within the doped polymeric coating via a detection machine for purposes of determining wear or other aspects about the conditions of the slickline.