Articles | Volume 56
08 Oct 2021
 | 08 Oct 2021

Reactive transport model of kinetically controlled celestite to barite replacement

Morgan Tranter, Maria Wetzel, Marco De Lucia, and Michael Kühn

Model code and software

Supplemental data of publication "Reactive Transport Model of Kinetically Controlled Celestite to Barite Replacement" Morgan Tranter

Short summary
Barite formation is an important factor for many use cases of the geological subsurface because it may change the rock. In this modelling study, the replacement reaction of celestite to barite is investigated. The steps that were identified to play a role are celestite dissolution followed by two-step precipitation of barite: spontaneous formation of small crystals and their subsequent growth. Explicitly including the processes improve the usability of the models for quantified prediction.