Ether Amine Coupling Agents for Acidic Corrosion Protection
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Solution Overview
Problem
Current corrosion inhibition methods are inadequate for effectively protecting metal surfaces in industrial, oilfield, and refinery equipment from corrosion, particularly in subterranean hydrocarbon producing formations and acidic environments, where acid treatments can cause damage.
Innovation Solution
A corrosion inhibition composition comprising coupling agents such as ether amines and ether amine oxides, combined with corrosion inhibitors like thiophosphates, polyphosphate esters, imidazolines, quinolines, alkynols, and alkynol derivatives, which form a protective film on metal surfaces, enhancing corrosion resistance and stability in acidic solutions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional corrosion inhibition methods are used, then general corrosion protection is provided, but they are inadequate for protecting metal surfaces in harsh acidic environments and subterranean hydrocarbon producing formations
Solution Approach 1:
The patent combines coupling agents (ether amines, ether amine oxides) with multiple types of corrosion inhibitors (thiophosphates, polyphosphate esters, imidazolines, quinolines, alkynols) to create a composite corrosion inhibition system. This composite approach provides enhanced reliability and adaptability for protecting metal surfaces in harsh acidic environments and subterranean hydrocarbon producing formations, overcoming the limitations of conventional single-agent methods.
2Productivity
If acid treatments are applied to subterranean formations, then hydrocarbon production is enhanced, but metal surfaces and equipment are damaged by corrosion
Solution Approach 1:
The coupling agents act as intermediaries between the acidic treatment environment and the metal surfaces. These agents facilitate the adsorption and film formation of corrosion inhibitors on metal surfaces, enabling effective corrosion protection while maintaining the productivity benefits of acid treatments in subterranean hydrocarbon producing formations.
Solution Approach 2:
The patent converts the harmful acidic environment into a beneficial treatment by using the acid to enhance hydrocarbon production while simultaneously applying corrosion inhibition compositions that protect metal surfaces. The coupling agents enable the corrosion inhibitors to effectively neutralize or mitigate the corrosive effects of the acid treatment.
3Reliability
If corrosion inhibitors are applied to metal surfaces, then corrosion resistance is improved, but the protective film may not maintain effectiveness over time in harsh environments
Solution Approach 1:
The coupling agents enable continuous adsorption and film formation of corrosion inhibitors on metal surfaces, maintaining the protective film's integrity and effectiveness over time. This continuous action ensures that the corrosion resistance is sustained even in harsh acidic environments and subterranean conditions, preventing film degradation or breakdown.
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 composition effectively inhibits corrosion on metal surfaces, even in harsh acidic environments, by forming a robust protective film that maintains its effectiveness over time, reducing corrosion rates and protecting equipment from acid-induced damage.
Implementation Method 1
form a protective film on metal surfaces
Data Source
AI summary
Corrosion inhibition compositions and methods useful for inhibiting corrosion are provided. The corrosion inhibition compositions comprise at least one coupling agent and at least one corrosion inhibitor, wherein the at least one coupling agent is at least one of one or more ether amines, one or more ether amine oxides, and at least one combination thereof, and the at least one corrosion inhibitor is at least one selected from one or more thiophosphates, one or more polyphosphate esters, one or more imidazolines, one or more quinolines, one or more alkynols, one or more alkynol derivatives, and at least one combination thereof. The methods for inhibiting corrosion on metal surfaces utilize the disclosed corrosion inhibiting compositions.