NMR Peak Separation in Multiphase Drilling Fluids
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge in using nuclear magnetic resonance (NMR) methods for characterizing multiphase drilling fluids is the overlapping NMR response of the multiple phases, which complicates the analysis and calculation of properties such as the oil to water ratio.
Innovation Solution
A method involving the modification of a drilling fluid sample to enhance the separation of NMR peaks corresponding to different fluid phases, achieved by receiving a sample, modifying it to improve peak separation, and then making NMR measurements to compute fluid properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If NMR measurement is performed on multiphase drilling fluid without modification, then the measurement process is simple and quick, but the NMR peaks of different phases overlap making analysis difficult
Solution Approach 1:
The patent applies preliminary action by modifying the drilling fluid sample before NMR measurement. Specifically, the sample is heated to a predetermined temperature range (e.g., 20-80°C) for a predetermined time period (e.g., 1-30 minutes) to enhance the separation of NMR peaks corresponding to different fluid phases, thereby improving measurement precision without complicating the overall process
2Measurement precision
If the drilling fluid sample is modified to enhance peak separation, then the NMR peak separation is improved, but the measurement time and processing steps increase
Solution Approach 1:
The patent applies parameter changes by optimizing the heating temperature and time parameters. By controlling the temperature within a specific range (20-80°C) and time duration (1-30 minutes), the method achieves effective peak separation while minimizing the time required for modification, thus balancing precision improvement with time efficiency
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
This approach allows for improved characterization of drilling fluids by effectively separating the NMR peaks of different phases, enabling more accurate determination of properties like the oil to water ratio, and facilitating real-time monitoring of drilling fluid changes.
Implementation Method 1
nuclear magnetic resonance (NMR) methods for characterizing and monitoring drilling fluids
Data Source
AI summary
A method for evaluating a multiphase drilling fluid includes receiving a sample of the multiphase drilling fluid and modifying the sample to enhance a separation of a first NMR peak corresponding to a first fluid phase component and a second NMR peak corresponding to a second fluid phase component. A nuclear magnetic resonance (NMR) measurement is made of the modified sample and evaluated to compute a property of the drilling fluid.