Expert rules for two-point association of fault observations in drillholes

@inproceedings{Fratani2025RMa,
 abstract = {Modelling fault networks from incomplete and sparse data is a complex task that has been the subject of previous research efforts using a graph formalism. Fault observations are represented using nodes while an edge carries the potential that a pair of observations belong to the same fault. Potentials are obtained using expert rules. Demonstrated on fault traces extracted from 2D seismic images, the graph formalism is expendable to any type of data. Here, this graph formalism is applied on fault observed on borehole images. For that, three new expert rules are proposed to consider the information that can be retrieved on borehole images: position, orientation (dip, dip direction) and opening size (aperture) of the fault. The first rule is based on the distance between two observations and on the law governing interactions between the distribution and length of faults. The second rule considers the difference of orientation between two observations. Geometric relationships based on the dip and dip direction of each observation are used to test if the two fault observations can belong to the same plane. The last rule uses the aperture and test if considering the maximal aperture and the distance, two observations potentially come from the same fault. The rules are tested independently and combined on a synthetic dataset.},
 author = {Fratani, Amandine and Baville, Romain and Prest, Chiara-Luna and Antoine, Christophe and Stoica, Radu Stefan and Caumon, Guillaume},
 booktitle = {2025 {RING} meeting},
 language = {en},
 pages = {234--243},
 publisher = {ASGA},
 title = {Expert rules for two-point association of fault observations in drillholes},
 year = {2025}
}