Details

Autor(en) / Beteiligte

• Khimulia, V. V.
• Shevtsov, N. I.

Titel

Assessment of Fracture and Pore Permeability in Rocks by Results of X-ray Computed Tomography

Ist Teil von

• Physical and Mathematical Modeling of Earth and Environment Processes--2022, 2023, p.517-526

Ort / Verlag

Switzerland: Springer International Publishing AG

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The paper presents the results of studies of the filtration properties of rocks carried out on the ProCon X-Ray CT-MINI high-resolution scanner of the Institute for Problems in Mechanics RAS. Images of the internal structure of reservoir rocks of two different types were obtained: a highly porous coarse-grained sandstone from a gas field reservoir and a fine-grained well cemented low-permeability sandstone with a branched network of macrocracks from a gas condensate field reservoir. The approaches to the processing of tomography images in the GeoDict software are described. Numerical modeling of filtration flows through the obtained structures is performed. Filtration fields were calculated using Navier–Stokes and Stokes-only solvers of the FlowDict module of GeoDict package. Differences and difficulties in modeling depending on the type of filtration in the rock: pore permeability and fracture permeability are shown. The differences between the measured and computed permeabilities were evaluated. Conclusions are made about the possibility of using the described methods to assess the filtration properties of rocks.