NMR Mineralogy Analysis for Drill Solids Depth Matching
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Solution Overview
Problem
Current drilling technologies lack effective methods for accurately analyzing the mineral composition of drill solids in real-time during the drilling process, which hinders precise depth matching of cuttings and affects drilling efficiency and reservoir evaluation.
Innovation Solution
The use of nuclear magnetic resonance (NMR) spectrometers to measure the magnetic susceptibility of drill fines, allowing for the identification of minerals and depth matching of cuttings by correlating the magnetic susceptibility with mineralogy logs and fluid flow rates, enabling continuous analysis of drill solids and cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional drilling analysis methods are used, then the analysis process is simple, but the measurement precision of mineral composition is insufficient
Solution Approach 1:
The patent replaces conventional mechanical/chemical analysis methods with nuclear magnetic resonance (NMR) spectroscopy to measure magnetic susceptibility of drill solids. This substitution enables precise mineralogical identification by detecting the magnetic properties of different minerals, achieving high measurement precision without complex chemical processing.
Solution Approach 2:
The patent measures magnetic susceptibility as a key physical parameter to identify mineral composition. By changing from conventional visual or chemical analysis to magnetic property measurement, the system achieves rapid and accurate mineralogical analysis of drill cuttings and fines, directly improving measurement precision.
2Productivity
If real-time analysis is implemented, then drilling efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent implements continuous measurement of magnetic susceptibility of drill solids as they are brought to surface. By maintaining continuous analysis rather than batch processing, the system provides real-time mineralogical data that improves drilling efficiency and enables immediate adjustments to drilling parameters.
Solution Approach 2:
The NMR-based magnetic susceptibility measurement system requires minimal sample preparation and automatically provides mineralogical analysis. The system self-calibrates and processes samples continuously without requiring complex manual intervention, achieving real-time analysis while keeping operational complexity manageable.
3Measurement precision
If magnetic susceptibility measurement is used, then mineral identification accuracy is improved, but the measurement process becomes more complex
Solution Approach 1:
The patent uses NMR spectroscopy to measure magnetic susceptibility, replacing difficult conventional magnetic measurement techniques. The NMR method provides precise mineral identification by detecting characteristic magnetic resonance signals of different minerals, achieving high accuracy while simplifying the measurement process through automated spectral analysis.
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 provides accurate, real-time mineralogical analysis of drill solids, enabling precise depth matching of cuttings and improving drilling efficiency by correlating fines and cuttings mineralogy, facilitating better reservoir evaluation and production decisions.
Implementation Method 1
exposing the sample to a magnetic field, measuring a magnetic susceptibility of the fines in the sample in response to the magnetic field
Implementation Method 2
measuring a magnetic susceptibility contrast of the fines in the at least one sample in response to the magnetic field
Data Source
AI summary
A method for measuring at least one property of a sample includes obtaining a sample of fluid including at least fines from a downhole environment, exposing the sample to a magnetic field, measuring a magnetic susceptibility of the fines in the sample in response to the magnetic field, and identifying at least one mineral present in the fines based at least partially on the magnetic susceptibility.