Amine Detector Compound for Wellbore Fluid Concentration Analysis
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Solution Overview
Problem
The inability to accurately detect the real-time concentration of amine-based additives in wellbore servicing fluids leads to economic losses and operational inefficiencies due to issues like viscosity build-up, corrosion, and wellbore instability.
Innovation Solution
A method involving the reaction of amine-based additives with an amine detector compound, resulting in highly conjugated molecules that absorb light in the UV-VIS range, allowing for the determination of additive concentration through absorption intensity analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional detection methods are used for amine-based additives, then the detection process is simple, but the measurement precision and real-time capability are insufficient leading to economic losses
Solution Approach 1:
The patent introduces an amine detector compound as an intermediary substance that reacts with amine-based additives to form a detection solution with measurable absorption characteristics. This mediator enables precise concentration detection through UV-VIS spectroscopy while maintaining operational simplicity in the drilling fluid system.
Solution Approach 2:
The patent replaces conventional mechanical or chemical titration methods with optical detection using UV-VIS spectroscopy. By measuring the absorption intensity of the detection solution at specific wavelengths, the system achieves real-time quantitative analysis of amine concentrations without complex mechanical operations.
2Productivity
If real-time detection is implemented, then operational efficiency improves, but the device complexity and detection difficulty increase
Solution Approach 1:
The patent employs a pre-prepared detection solution containing the amine detector compound and buffer agents at optimized concentrations. This preliminary preparation allows for immediate real-time detection of amine-based additives in drilling fluids without requiring complex on-site reagent preparation or calibration procedures.
Solution Approach 2:
The patent utilizes the change in absorption parameters (absorption intensity at specific wavelengths) of the detection solution when it reacts with amine-based additives. By monitoring these spectral parameter changes in real-time, the system achieves continuous concentration monitoring while keeping the detection methodology straightforward.
3Reliability
If amine-based additives are used in drilling fluids, then corrosion and wellbore stability improve, but the additives are lost to the formation requiring frequent monitoring
Solution Approach 1:
The patent implements a feedback mechanism by continuously monitoring the concentration of amine-based additives in the drilling fluid using the detection solution and UV-VIS spectroscopy. This real-time feedback allows operators to track additive depletion due to formation loss and及时调整 additive dosing to maintain optimal corrosion protection and wellbore stability.
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 real-time, quantitative detection of amine-based additives, enhancing operational efficiency and reducing economic losses by maintaining optimal additive levels in wellbore fluids.
Implementation Method 1
reacting the additives with an amine detector compound to form a detection solution... wherein the detection solution is characterized by at least one absorption peak wavelength in the range of from about 380 nanometers (nm) to about 760 nm... detecting an absorption intensity for the detection solution at a wavelength within about ±20% of the at least one absorption peak wavelength
Data Source
AI summary
A method of detecting an amine-based additive in wellbore servicing fluid (WSF) comprising contacting an aliquot of WSF with an amine detector reagent and aqueous medium to form a detection solution; wherein the amine detector reagent comprises an amine detector compound, and a polar organic solvent (POS) with flash point >105° C.; wherein the WSF comprises the amine-based additive; and wherein the detection solution is characterized by at least one absorption peak wavelength in 380-760 nm; detecting an absorption intensity for detection solution at a wavelength within ±20% of the at least one absorption peak wavelength; comparing the absorption intensity of detection solution at the wavelength within ±20% of the at least one absorption peak wavelength with a target absorption intensity of amine-based additive to determine the amount of amine-based additive in WSF; and comparing the amount of amine-based additive in WSF with a target amount of amine-based additive.