Autonomous Rock Drill Cuttings Interpretation via ML

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Solution Overview

Problem

Traditional human interpretation of rock drill cuttings is labor-intensive, prone to bias, and inconsistent, leading to high costs and variable assessments across different wells and geological formations.

Innovation Solution

An autonomous system using machine learning models to preprocess, segment, and predict mineralogical or sedimentological data from rock drill cuttings representations, enabling real-time, consistent, and accurate interpretation without the need for on-site human geologists.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If human interpretation of rock drill cuttings is used, then expertise and judgment can be applied, but the process becomes labor-intensive and inconsistent

Engineering Contradiction:
Improveinterpretation accuracyVSAvoidinterpretation efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces the manual mechanical process of human geologists examining and interpreting rock drill cuttings with an automated optical system using digital imaging and machine learning algorithms. The system captures images of cuttings, processes them through trained models, and generates mineralogical and sedimentological interpretations automatically, eliminating labor-intensive manual analysis while maintaining or improving accuracy through consistent application of trained algorithms across all samples.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If human interpretation is used, then flexible judgment can be applied, but bias and inconsistency arise across different wells and formations

Engineering Contradiction:
Improveinterpretation flexibilityVSAvoidinterpretation consistency
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent transforms the interpretive process from subjective human judgment to objective algorithmic analysis by changing the parameters from human expertise variables to standardized machine learning model parameters. The system uses consistent trained models with fixed parameters that are applied uniformly across all wells and formations, eliminating inter-observer variability and bias while maintaining adaptability through the model's ability to recognize diverse rock types and geological contexts.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If automated machine learning interpretation is implemented, then consistency and accuracy improve, but system complexity increases

Engineering Contradiction:
Improveinterpretation accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent uses digital copies and representations of physical rock drill cuttings through high-resolution imaging, replacing the need for physical sample handling and manual examination. The machine learning models process these digital copies to generate interpretations, simplifying the overall system by eliminating complex physical manipulation steps while maintaining interpretive accuracy through sophisticated digital analysis.

Inventive Principle:
Principle #26Copying

4Device complexity

If manual processing of rock drill cuttings is used, then simple equipment is required, but time consumption increases significantly

Engineering Contradiction:
Improveequipment simplicityVSAvoidinterpretation time
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The patent implements continuous automated processing where the machine learning system operates without interruption to analyze rock drill cuttings as they are collected, eliminating the discontinuous nature of manual examination. The system processes images and generates interpretations in continuous workflow, dramatically reducing total interpretation time while requiring only moderate equipment complexity consisting of imaging devices and computing resources.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS20230374903A1Autonomous Interpretation of Rock Drill Cuttings
Publication Date: 2023.11.23 SAUDI ARABIAN OIL CO
  • US20230374903A1 patent drawing
  • US20230374903A1 patent drawing
  • US20230374903A1 patent drawing

AI summary

A computer-implemented method that autonomously performs rock drill cuttings interpretation is described herein. The method includes obtaining rock drill cuttings representations. The method also includes preprocessing the rock drill cuttings representations. The method also includes performing unsupervised image segmentation in order to obtain masked representations of such images discriminating rock types. The method also includes performing supervised learning through a custom Convolutional Neuronal Network using the segmented pictures as inputs and a continuous or discrete mineralogical or sedimentological variable of interest as the output. Additionally, the method includes autonomously predicting such mineralogical or sedimentological quantity from new rock drill cuttings pictures using the parameters of the unsupervised segmentation and the trained supervised model created for this purpose.