Mineralogical Composition Correction Using Elemental Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for determining the mineralogical composition of geological formations, such as those in oil fields, face challenges in achieving accurate and real-time results, especially when using field measurements, as they often rely on simplified sample preparation techniques like DRIFTS and XRD, which may not capture the complete mineralogical and elemental composition accurately.
Innovation Solution
A method and installation that utilize first and second detectors to measure mineralogical and elemental compositions, respectively, with a processing system applying a mineralogy break-down model to correct the mineralogical composition by adjusting mineral amounts within families or adding additional minerals, while maintaining constant total amounts, to improve accuracy and match predicted and measured elemental compositions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If simplified sample preparation techniques like DRIFTS or XRD are used for field measurements, then measurement speed and ease of operation are improved, but measurement precision and reliability of mineralogical composition determination deteriorate
Solution Approach 1:
The system uses measured elemental composition as feedback to correct the mineralogical composition obtained from rapid field measurements. The elemental composition serves as a reference to validate and adjust the mineralogical results, ensuring accuracy while maintaining fast measurement capability.
Solution Approach 2:
Elemental composition acts as an intermediary between the rapid field measurement (DRIFTS/XRD) and the accurate mineralogical composition determination. By introducing this intermediate measurement, the system bridges the gap between speed and precision without requiring complex sample preparation.
2Measurement precision
If complex measurement procedures with rigorous sample preparation are used, then measurement precision is improved, but ease of operation and measurement time are worsened
Solution Approach 1:
The measurement process is segmented into two independent parts: rapid field measurement of mineralogical composition using DRIFTS or XRD, and separate measurement of elemental composition. This segmentation allows each measurement to be optimized independently, with the elemental composition serving as a correction reference without requiring complex sample preparation for the main field measurement.
Solution Approach 2:
The system changes the measurement parameters by introducing elemental composition analysis as a complementary measurement. Instead of relying solely on complex sample preparation for accurate mineralogical results, the system uses elemental composition parameters to correct and validate the mineralogical data, simplifying the overall operational process.
3Loss of time
If field measurements with simplified preparation are used, then loss of time is reduced, but loss of information regarding complete mineralogical and elemental composition increases
Solution Approach 1:
The system merges two measurement approaches: rapid field measurement (DRIFTS or XRD) for mineralogical composition and elemental composition analysis. By combining these measurements and using the elemental data to correct the mineralogical results, the system recovers complete composition information without sacrificing the time advantage of field measurements.
Solution Approach 2:
The system performs preliminary measurement of mineralogical composition using rapid field techniques, then uses elemental composition analysis to correct and complete the data. This preliminary action approach allows the system to obtain initial results quickly while ensuring complete information through subsequent correction based on elemental measurements.
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 enhances the accuracy of mineralogical composition determination, particularly in near real-time field measurements, by iteratively correcting mineral amounts, leading to a more precise mineralogical composition that better matches the elemental composition, as demonstrated by significant reductions in error scores and improved correlation with reference measurements.
Implementation Method 1
XRD (X-Ray Diffraction) have been developed
Implementation Method 2
DRIFTS (Diffuse Reflectance Infrared Fourier Transform Spectroscopy)
Implementation Method 3
The elemental composition may indeed be measured accurately via known technique
Data Source
AI summary
A method for determining a mineralogical composition of a geological formation sample includes measuring a mineralogical composition of the sample and measuring an elemental composition of the sample. The mineralogical composition is processed to compute a predicted elemental composition of the sample based on known elemental compositions of predetermined minerals. The measured mineralogical composition is corrected to obtain a corrected mineralogical composition which is in turn processed to compute a corresponding corrected predicted elemental composition of the sample. The measured elemental composition is compared with the predicted elemental compositions to obtain error indicators. The error indicators are compared and evaluated to selected and output one of the measured or corrected measured mineralogical compositions.