Cigarette Filter Cellulose Additives for Subterranean Corrosion Control
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Solution Overview
Problem
Current corrosion inhibitors used in subterranean formation operations in the oil and gas industry are environmentally harmful, costly, and difficult to degrade, leading to corrosion issues and formation damage.
Innovation Solution
Utilizing multifunctional waste additives (MWAs) derived from cellulose extracts of cigarette filter waste, which are combined with solvents to create environmentally friendly corrosion inhibitors that combat corrosion in treatment fluids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional corrosion inhibitors are used in treatment fluids, then corrosion control is achieved, but environmental toxicity and pollution increase
Solution Approach 1:
The patent changes the chemical composition parameters of corrosion inhibitors by using cellulose-based biopolymers instead of traditional synthetic chemicals. This substitution maintains corrosion inhibition effectiveness while fundamentally altering the environmental toxicity profile, making the treatment fluids biodegradable and environmentally friendly.
Solution Approach 2:
The patent promotes the use of biodegradable cellulose-based inhibitors that naturally break down after serving their corrosion protection function. This eliminates the need for complex disposal procedures and prevents long-term environmental accumulation, allowing the corrosion inhibitor to be discarded safely once its protective function is complete.
2Reliability
If traditional corrosion inhibitors are used in treatment fluids, then corrosion control is achieved, but operational costs increase
Solution Approach 1:
The patent employs biodegradable cellulose-based corrosion inhibitors that are inherently less expensive than traditional synthetic inhibitors. These natural polymers can be sourced from renewable materials and require simpler manufacturing processes, reducing both material and processing costs while maintaining effective corrosion protection.
Solution Approach 2:
The cellulose-based inhibitors provide self-limiting corrosion protection through their natural biodegradability. As they break down over time, they automatically cease their inhibitory function, eliminating the need for complex monitoring and replacement schedules associated with traditional inhibitors, thereby reducing operational overhead costs.
3Reliability
If traditional corrosion inhibitors are used in treatment fluids, then corrosion control is achieved, but degradation difficulty increases
Solution Approach 1:
The patent fundamentally changes the chemical structure parameter of corrosion inhibitors from synthetic, stable compounds to natural, biodegradable cellulose-based polymers. This structural transformation enables rapid biodegradation through microbial action and hydrolysis, reducing the persistence of inhibitor residues in the environment from years to months or weeks.
Solution Approach 2:
The patent designs the corrosion inhibitor system with inherent biodegradability, allowing the inhibitor to naturally break down into harmless cellulose degradation products after completing its corrosion protection function. This eliminates long-term environmental persistence and allows for safe disposal without specialized treatment facilities.
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 MWAs effectively inhibit corrosion, reduce formation damage, and lower operational costs while being environmentally friendly, suitable for high-temperature subterranean formations and various operations including drilling, cementing, and stimulation.
Implementation Method 1
allowing the MWA to interact with at least a portion of a metal surface during the introducing
Data Source
AI summary
Treatment fluids, systems, and methods including preparing a multifunctional waste additive (MWA) comprising a cellulose extract derived by contacting a plurality of cigarette filter waste with a solvent; preparing a treatment fluid comprising: a base fluid; an acid; a corrosion intensifier; and the MWA; introducing the treatment fluid into a wellbore drilled through a subterranean formation, the treatment fluid; and allowing the MWA to interact with at least a portion of a metal surface during the introducing.