Deep-Bore Casing Measurement for Corrosion Protection Feedback
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Solution Overview
Problem
Existing corrosion protection measures for deep borings fail to ensure consistent and efficient protection, leading to potential leakage and environmental damage due to undetectable corrosion, with current methods consuming excess energy and incurring unnecessary costs.
Innovation Solution
A measuring device with an electrical measuring cable and head that establishes an electrical connection within the casing to verify the effectiveness of corrosion protection parameters, allowing for precise measurement and adjustment to ensure sufficient protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a passive corrosion protection coating is applied to the casing, then corrosion protection is provided, but the coating may be damaged during manufacture, installation, or operation without detection
Solution Approach 1:
The patent introduces an intermediary active corrosion protection system (cathodic protection) that works in conjunction with the passive coating. This active system provides a backup mechanism that can compensate for coating damages, ensuring continuous corrosion protection even when the passive coating is compromised during manufacture, installation, or operation.
Solution Approach 2:
The patent implements a feedback mechanism by continuously monitoring the corrosion protection status through measurable parameters (potential, current). This allows the system to detect when the passive coating is damaged and automatically adjust the active protection parameters to maintain adequate corrosion protection levels.
2Reliability
If a high protection parameter value is used to ensure sufficient corrosion protection, then corrosion protection is improved, but energy consumption increases significantly
Solution Approach 1:
The system continuously monitors actual corrosion protection parameters and uses this feedback to dynamically adjust the protection current and voltage levels. This ensures that the minimum necessary energy is consumed while maintaining adequate corrosion protection, avoiding both over-protection (waste) and under-protection (corrosion risk).
Solution Approach 2:
The patent transitions from static, fixed protection parameter values to dynamic, adjustable parameters that can be optimized in real-time based on actual corrosion conditions, casing depth, soil resistivity, and protection status. This dynamic approach allows energy consumption to be minimized while maintaining sufficient protection.
3Reliability
If a very high protection parameter value with high error tolerance is used, then sufficient corrosion protection is ensured, but operating costs increase considerably
Solution Approach 1:
The monitoring and feedback system enables data-driven optimization of protection parameters, replacing conservative high-error-tolerance settings with precisely tuned values. This reduces unnecessary energy consumption and operating costs while maintaining reliable corrosion protection through continuous verification of protection adequacy.
4Use of energy by moving object
If the protection parameter value is not sufficiently large, then energy consumption is reduced, but corrosion occurs leading to casing leakage and environmental damage
Solution Approach 1:
The continuous monitoring feedback system detects early signs of insufficient protection and triggers automatic adjustment of protection parameters before corrosion damage occurs. This prevents the harmful outcome of under-protection while avoiding the waste of excessive energy consumption, achieving an optimal balance.
Solution Approach 2:
The system performs preliminary verification of corrosion protection status through regular measurements and monitoring. By detecting potential protection deficiencies early, the system can take preventive action (adjusting parameters) before actual corrosion damage and environmental harm occur.
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 verification of sufficient corrosion protection, reducing energy consumption and preventing leakage by optimizing protection parameters, thus minimizing environmental damage and operational costs.
Implementation Method 1
The measuring equipment is configured to measure at least one electrical measuring parameter depending on at least one electrical protection parameter applied to the casing
Data Source
AI summary
The application relates to a measuring device for a casing of a deep boring, including at least one electrical measuring cable insertable into the casing and having a first cable end connectable to at least one measuring equipment of the measuring device and a further cable end, at least one measuring head arranged on the further cable end and having at least one electrically conductive connecting element having a contact end configured to contact an inner wall of the casing, and at least one ground contact element connectable to the measuring equipment. The measuring equipment is configured to measure at least one electrical parameter dependent on at least one electrical protection parameter applied to the casing.