Abstract: Techniques and systems to provide increases in accuracy of property determination of a formation. The techniques include receiving initial well log data, generating augmented well log data including the initial well log data and modeled well log data based on the initial well log data, modifying the augmented well log data to generate a training dataset, training a probabilistic classifier utilizing the training dataset, calculating a probability volume for each lithofluid class of a set of predetermined lithofluid classes utilizing the probabilistic classifier, outputting the probability volume for each lithofluid class of the set of predetermined lithofluid classes as a respective probability of an occurrence of a type of lithofluid class in a reservoir, calculating a posterior probability based on the probability volume for a first lithofluid class of the set of predetermined lithofluid classes, and outputting the posterior probability as a probability of a property of the reservoir.

Abstract: A method for analyzing a rock sample to determine a mechanical property of the rock sample includes (a) segmenting a digital image volume corresponding to an image of the rock sample. In addition, the method includes (b) partitioning the digital image volume to associate a plurality of voxels in the digital image volume with a plurality of grains of the rock sample. Further, the method includes (c) determining the voxels of the plurality of voxels that are adjacent to each other to identify a plurality of contact interfaces between the grains. Still further, the method includes (d) determining a contact area of each of the contact interfaces using adjacent voxels at the corresponding grain-grain interface. The method also includes (e) determining a number of contact interfaces that each grain of the plurality of grains has with each adjacent grain.

Abstract: A method for analyzing a rock sample to determine a mechanical property of the rock sample includes (a) segmenting a digital image volume corresponding to an image of the rock sample. In addition, the method includes (b) partitioning the digital image volume to associate a plurality of voxels in the digital image volume with a plurality of grains of the rock sample. Further, the method includes (c) determining the voxels of the plurality of voxels that are adjacent to each other to identify a plurality of contact interfaces between the grains. Still further, the method includes (d) determining a contact area of each of the contact interfaces using adjacent voxels at the corresponding grain-grain interface. The method also includes (e) determining a number of contact interfaces that each grain of the plurality of grains has with each adjacent grain.