Supramolecular Host-Guest Concentrators for Emulsion Breaking
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Solution Overview
Problem
Existing separation equipment in oil field and refinery operations is not fully effective in breaking emulsions formed between various components of production fluids, leading to inefficiencies and increased energy requirements for separation.
Innovation Solution
The use of treatment fluids containing supramolecular host guest products, which facilitate the concentration of surfactants at interfaces, thereby enhancing the interfacial activity and efficacy of emulsion breaking in separation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional separation equipment is used to separate production fluids, then separation can be achieved, but emulsions are not fully broken and energy requirements increase
Solution Approach 1:
The patent introduces supramolecular host-guest complexes as intermediary substances that mediate between the emulsion components and the separation equipment. These complexes selectively bind to emulsion stabilizers through host-guest interactions, disrupting the emulsion structure and facilitating separation. The complexes act as molecular mediators that transfer the breaking action from the bulk phase to the emulsion interface, thereby improving separation efficiency while reducing energy input requirements.
Solution Approach 2:
The patent changes the chemical parameters of the separation system by introducing supramolecular complexes with specific binding affinities. These complexes alter the interfacial properties of emulsions through selective molecular recognition and binding, changing the stability parameters of the emulsion system. This parameter change enables emulsion breaking at lower energy inputs compared to conventional high-energy separation methods.
2Reliability
If excess additives are used in treatment fluids to maintain adequate concentration at interfaces, then emulsion breaking efficacy is improved, but the complexity and cost of fluid formulation increases
Solution Approach 1:
The patent applies local quality by concentrating surfactant molecules specifically at the emulsion interface through supramolecular host-guest complexation. Instead of distributing additives uniformly throughout the bulk treatment fluid, the host-guest complexes selectively deliver surfactants to the oil-water interface where they are needed for emulsion breaking. This localized concentration approach maintains high interfacial efficacy while reducing the overall additive concentration required in the treatment fluid formulation.
Solution Approach 2:
The patent employs composite supramolecular structures consisting of host molecules, guest surfactants, and treatment fluid components. These composite host-guest complexes combine the emulsion-breaking properties of surfactants with the selective binding capabilities of supramolecular hosts, creating a multi-functional material system. This composite approach enhances emulsion breaking efficacy while simplifying formulation compared to using excess individual additives.
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 supramolecular host guest products allow for more effective emulsion breaking, reducing the stability of emulsions and enabling them to break in a shorter time with less energy, thus improving the efficiency of separation operations.
Implementation Method 1
a supramolecular host molecule, wherein the supramolecular host molecule is not covalently bonded to the treatment fluid additive
Implementation Method 2
The supramolecular host guest products allow for more effective emulsion breaking, reducing the stability of emulsions and enabling them to break in a shorter time
Implementation Method 3
more effective emulsion breaking, reducing the stability of emulsions and enabling them to break in a shorter time
Data Source
AI summary
A method may include: introducing a treatment fluid into a production fluid disposed in a surface well system, the treatment fluid comprising: a base fluid; and a supramolecular host guest product comprising: a treatment fluid additive comprising a surfactant; and a supramolecular host molecule, wherein the supramolecular host molecule is not covalently bonded to the treatment fluid additive; introducing the production fluid containing the treatment fluid into a production facility separator; and separating, in the production facility separator, at least a portion of the production fluid to form a water stream.