Weichao Yan

TL;DR: In this article, the authors distinguish fracture porosity and matrix porosity in coalbed methane reservoirs through a novel approach which is the joint usage of NMR transverse relaxation (T2) measurements and rock physics modeling based on Levenberg-Marquardt (LM) algorithm.

TL;DR: In this paper, the authors performed NMR measurements on rock samples under different fluid saturation states and combined the results with imbibition methods as the novel experimental procedure to characterize wettability and pores of tight oil reservoirs.

TL;DR: In this article, a finite element method (FEM) was used to calculate the resistivity of the hydrate-bearing samples obtained from scanning images, which matched better with the new calculation model rather than the simple formula fitting model.

TL;DR: A 3D training image is used in order to provide more realistic 3D pore structure features and the reconstructed models are in good agreement with the real model obtained by X-ray computed tomography scanning in the pore throat geometry and topology and transport property, which justifies the reliability of the proposed method.

TL;DR: In this paper, a hybrid gas hydrate filling mode identification method via digital rock technique was proposed, which uses a combination of multiple methodologies, including high-resolution micro-scale 3D X-ray computed tomography (μCT) and the digital rock models.