Treated Aldehyde Resin with Polyamine for High Pressure Coating
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Solution Overview
Problem
Traditional resins used for coating proppants and pipe surfaces fail to withstand high pressures, leading to crushing and disintegration, which results in reduced fluid production and potential pipe erosion due to their inadequate cured strength and toughness.
Innovation Solution
Development of treated aldehyde-based resins containing polyamines, specifically aromatic or poly(C2-C5 alkylene) polyamines, which are combined with aldehyde-based resins and heated to enhance cured strength and toughness, resulting in a resin with improved mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional resins are used for coating proppants and pipes, then the coating process is simple and cost-effective, but the cured strength and toughness are insufficient, leading to crushing and disintegration under high pressure
Solution Approach 1:
The patent combines aldehyde-based resin with polyamine additive to create a composite resin system. The polyamine (such as aromatic polyamines or poly(C2-C5 alkylene) polyamines) reacts with the aldehyde-based resin to form a cross-linked network structure, significantly enhancing cured strength and toughness while maintaining reasonable compositional complexity
Solution Approach 2:
The patent modifies the chemical composition parameters of the resin system by incorporating polyamine at specific concentrations (0.1-10 wt% based on resin solids). This parameter change transforms the resin from a simple aldehyde-based system to a enhanced composite system with superior mechanical properties under high pressure
2Reliability
If traditional resins are used for coating proppants, then the coating application is straightforward, but the resin disintegrates under closure pressure of 34.5 MPa or greater, causing fines to migrate and plug flow passages
Solution Approach 1:
The aldehyde-based resin is combined with polyamine to form a composite coating material that maintains integrity under high closure pressures (34.5 MPa or greater). The polyamine cross-linking creates a more robust network structure that prevents resin disintegration and fines generation, ensuring reliable proppant performance in hydraulic fracturing applications
3Reliability
If traditional resins are used for pipe coating, then the initial coating is easy to apply, but the coating disintegrates under high internal pressure, exposing the pipe surface to erosion and rupture
Solution Approach 1:
The resin formulation combines aldehyde-based resin with polyamine additive to create a composite coating system that withstands high internal pressures without disintegration. The cross-linked structure formed by polyamine reaction provides enhanced durability and protection against pipe erosion and rupture, justifying the increased formulation 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
The treated aldehyde-based resins exhibit increased cured strength and toughness, preventing crushing and disintegration under high pressures, thus maintaining fluid production and pipe integrity.
Implementation Method 1
The mixture can be heated to a temperature of about 110° C. to about 200° C. to produce a treated aldehyde-based resin
Implementation Method 2
The treated aldehyde-based resin can be cooled to a temperature of less than 50° C. to solidify the treated aldehyde-based resin
Data Source
AI summary
Treated aldehyde-based resins containing one or more polyamines and methods for making and same. The treated aldehyde-based resin can be or include an aldehyde-based resin and a polyamine. The polyamine can be or include one or more aromatic polyamines, one or more poly(C2-C5 alkylene) polyamines, or a mixture thereof. The treated aldehyde-based resin can include about 0.05 wt % to about 10 wt % of the polyamine, based on a solids weight of the aldehyde-based resin.