Uncertainty assessment in the stratigraphic well correlation of a carbonate ramp: Method and application to the Beausset Basin, SE France

@article{lallier:hal-01765503,
 abstract = {We assess stratigraphic correlation uncertainties by stochastically generating several possible correlations lines between a set of stratigraphic logs. We motivate the use of automatic correlation methods to sample this uncertainty and introduce a stochastic version of Dynamic Time Warping (DTW) that correlates two logs. This method is extended to a larger number of logs using a sequential application of DTW. When available, low-frequency stratigraphic events are correlated first, and then used to constrain the correlation of higher-order events. All DTW variants use elementary correlation costs corresponding to the likelihood of each possible horizon. The method is demonstrated on a carbonate ramp of the Cretaceous southern Provence Basin, SE France, using costs that measure the consistency between the computed platform slope angle and a theoretical depositional profile. We show that these correlation uncertainties significantly impact facies proportions in stratigraphic layers. (C) 2015 Academie des sciences. Published by Elsevier Masson SAS.},
 author = {Lallier, Florent and Caumon, Guillaume and Borgomano, Jean and Viseur, Sophie and Royer, Jean-Jacques and Antoine, Christophe},
 doi = {10.1016/j.crte.2015.10.002},
 hal_id = {hal-01765503},
 hal_version = {v1},
 journal = {{Comptes Rendus. G{\'e}oscience}},
 number = {7},
 pages = {499-509},
 publisher = {{Acad{\'e}mie des sciences (Paris)}},
 title = {{Uncertainty assessment in the stratigraphic well correlation of a carbonate ramp: Method and application to the Beausset Basin, SE France}},
 url = {https://hal.science/hal-01765503},
 volume = {348},
 year = {2016}
}