System and method for estimating rock particle properties based on images and geological information
AssigneeSchlumberger Technology Corporation
InventorsTetsushi Yamada, Simone Di Santo, Karim Bondabou, Romain Prioul, Daniel Lockyer
Life of this patent
Estimating the term…
Abstract
Systems and methods are provided to analyze rock cuttings and measure physical lithological features of the rock cuttings. An image analysis workflow is provided, which includes multiple computational modules to automatically estimate relevant geological information from rock cuttings. Reference data, manual descriptions, and well log values are associated and used to determine rock properties of the rock cuttings. A software is developed for the image analysis, and results are displayed in various views.
Claims21
A method, comprising:
- receiving, via an analysis and control system, a cutting instance image of a cutting of a geological formation;
- extracting, via the analysis and control system, a set of cutting features from the cutting instance image, wherein the set of cutting features corresponds to a feature vector in a feature vector space;
- querying, via the analysis and control system, an index dataset using the feature vector, wherein the index dataset comprises one or more reference feature vectors in the feature vector space;
- identifying, via the analysis and control system, a number of reference feature vectors from the one or more reference feature vectors, wherein each of the number of reference feature vectors is associated with a respective reference cutting;
- determining, via the analysis and control system, a set of cutting properties for the cutting based on the reference cuttings associated with the number of reference feature vectors;
- and
- determining, via the analysis and control system, a categorical property for the cutting based on the set of cutting properties.
A method, comprising:
- extracting, via an analysis and control system, a respective set of reference cutting features from each of one or more reference cutting instance images of a geological formation, wherein each of the one or more reference cutting instance images is associated with a respective reference cutting, and wherein the respective set of reference cutting features corresponds to a respective reference feature vector;
- determining, via the analysis and control system, a respective set of reference cutting properties for the respective reference cutting at least based on a guided property description;
- and
- indexing, via the analysis and control system, each of the one or more reference cutting instance images with the respective set of reference cutting properties and the respective reference feature vector to generate an index dataset.
A system, comprising:
- a drilling device configured to acquire rock samples from a well;
- an image acquisition system to obtain an image of the rock samples;
- and
- an analysis and control system configured to:
- obtain a cutting instance image for a cutting from the image of the rock samples;
- extract a set of features from the cutting instance image based on reference data;
- and
- determine a lithological classification for the cutting.
Dependencies are inferred from the claim text.